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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
commit3ed1c478eff8db80e234d5446cb378b503135888 (patch)
treee1c8e0f488ca49c49b5a31fe59add4254381dd4b
parent151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2 (diff)
parent371deb9500831ad1afbf9ea00e373f650deaed2f (diff)
downloadlinux-3ed1c478eff8db80e234d5446cb378b503135888.tar.gz
Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael J Wysocki: - ARM big.LITTLE cpufreq driver from Viresh Kumar. - exynos5440 cpufreq driver from Amit Daniel Kachhap. - cpufreq core cleanup and code consolidation from Viresh Kumar and Stratos Karafotis. - cpufreq scalability improvement from Nathan Zimmer. - AMD "frequency sensitivity feedback" powersave bias for the ondemand cpufreq governor from Jacob Shin. - cpuidle code consolidation and cleanups from Daniel Lezcano. - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano. - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto. - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle, Yasuaki Ishimatsu, and Rafael J Wysocki. - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from Rafael J Wysocki and Andy Shevchenko. * tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits) cpufreq: Revert incorrect commit 5800043 cpufreq: MAINTAINERS: Add co-maintainer cpuidle: add maintainer entry ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points ARM: s3c64xx: cpuidle: use init/exit common routine cpufreq: pxa2xx: initialize variables ACPI: video: correct acpi_video_bus_add error processing SH: cpuidle: use init/exit common routine ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y ACPI: Fix wrong parameter passed to memblock_reserve cpuidle: fix comment format pnp: use %*phC to dump small buffers isapnp: remove debug leftovers ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ...
-rw-r--r--Documentation/ABI/testing/sysfs-devices-lpss_ltr44
-rw-r--r--Documentation/ABI/testing/sysfs-devices-power_resources_wakeup13
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-acpi26
-rw-r--r--Documentation/cpu-freq/cpu-drivers.txt9
-rw-r--r--Documentation/cpu-freq/governors.txt27
-rw-r--r--Documentation/cpuidle/driver.txt6
-rw-r--r--Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt65
-rw-r--r--Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt2
-rw-r--r--Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt28
-rw-r--r--MAINTAINERS22
-rw-r--r--arch/arm/Kconfig25
-rw-r--r--arch/arm/configs/kirkwood_defconfig1
-rw-r--r--arch/arm/mach-at91/cpuidle.c18
-rw-r--r--arch/arm/mach-davinci/Makefile1
-rw-r--r--arch/arm/mach-davinci/cpuidle.c29
-rw-r--r--arch/arm/mach-exynos/Kconfig2
-rw-r--r--arch/arm/mach-exynos/cpuidle.c1
-rw-r--r--arch/arm/mach-imx/Makefile2
-rw-r--r--arch/arm/mach-imx/cpufreq.c8
-rw-r--r--arch/arm/mach-imx/cpuidle-imx5.c37
-rw-r--r--arch/arm/mach-imx/cpuidle-imx6q.c26
-rw-r--r--arch/arm/mach-imx/cpuidle.c80
-rw-r--r--arch/arm/mach-imx/cpuidle.h10
-rw-r--r--arch/arm/mach-imx/pm-imx5.c30
-rw-r--r--arch/arm/mach-integrator/Makefile1
-rw-r--r--arch/arm/mach-omap2/common.h5
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c52
-rw-r--r--arch/arm/mach-omap2/cpuidle44xx.c84
-rw-r--r--arch/arm/mach-omap2/omap-mpuss-lowpower.c14
-rw-r--r--arch/arm/mach-omap2/pm.c9
-rw-r--r--arch/arm/mach-pxa/Makefile6
-rw-r--r--arch/arm/mach-pxa/include/mach/generic.h1
-rw-r--r--arch/arm/mach-s3c24xx/cpufreq.c8
-rw-r--r--arch/arm/mach-s3c64xx/cpuidle.c15
-rw-r--r--arch/arm/mach-sa1100/Kconfig26
-rw-r--r--arch/arm/mach-sa1100/Makefile3
-rw-r--r--arch/arm/mach-sa1100/include/mach/generic.h1
-rw-r--r--arch/arm/mach-shmobile/cpuidle.c23
-rw-r--r--arch/arm/mach-shmobile/include/mach/common.h3
-rw-r--r--arch/arm/mach-shmobile/pm-sh7372.c6
-rw-r--r--arch/arm/mach-tegra/Makefile1
-rw-r--r--arch/arm/mach-tegra/cpuidle-tegra114.c28
-rw-r--r--arch/arm/mach-tegra/cpuidle-tegra20.c72
-rw-r--r--arch/arm/mach-tegra/cpuidle-tegra30.c29
-rw-r--r--arch/arm/mach-ux500/cpuidle.c58
-rw-r--r--arch/avr32/Kconfig13
-rw-r--r--arch/avr32/configs/atngw100_defconfig2
-rw-r--r--arch/avr32/configs/atngw100_evklcd100_defconfig2
-rw-r--r--arch/avr32/configs/atngw100_evklcd101_defconfig2
-rw-r--r--arch/avr32/configs/atngw100_mrmt_defconfig2
-rw-r--r--arch/avr32/configs/atngw100mkii_defconfig2
-rw-r--r--arch/avr32/configs/atngw100mkii_evklcd100_defconfig2
-rw-r--r--arch/avr32/configs/atngw100mkii_evklcd101_defconfig2
-rw-r--r--arch/avr32/configs/atstk1002_defconfig2
-rw-r--r--arch/avr32/configs/atstk1003_defconfig2
-rw-r--r--arch/avr32/configs/atstk1004_defconfig2
-rw-r--r--arch/avr32/configs/atstk1006_defconfig2
-rw-r--r--arch/avr32/configs/favr-32_defconfig2
-rw-r--r--arch/avr32/configs/hammerhead_defconfig2
-rw-r--r--arch/avr32/configs/mimc200_defconfig2
-rw-r--r--arch/avr32/mach-at32ap/Makefile1
-rw-r--r--arch/blackfin/mach-common/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-a3/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-fs/Makefile1
-rw-r--r--arch/ia64/Kconfig6
-rw-r--r--arch/ia64/kernel/Makefile1
-rw-r--r--arch/ia64/kernel/cpufreq/Kconfig29
-rw-r--r--arch/ia64/kernel/cpufreq/Makefile2
-rw-r--r--arch/mips/Kconfig9
-rw-r--r--arch/mips/kernel/Makefile2
-rw-r--r--arch/mips/kernel/cpufreq/Kconfig41
-rw-r--r--arch/mips/kernel/cpufreq/Makefile5
-rw-r--r--arch/powerpc/platforms/cell/Kconfig26
-rw-r--r--arch/powerpc/platforms/cell/Makefile3
-rw-r--r--arch/powerpc/platforms/pasemi/cpufreq.c5
-rw-r--r--arch/powerpc/platforms/powermac/cpufreq_32.c14
-rw-r--r--arch/powerpc/platforms/powermac/cpufreq_64.c5
-rw-r--r--arch/powerpc/platforms/pseries/processor_idle.c34
-rw-r--r--arch/sh/Kconfig18
-rw-r--r--arch/sh/include/asm/suspend.h4
-rw-r--r--arch/sh/kernel/Makefile1
-rw-r--r--arch/sh/kernel/cpu/shmobile/cpuidle.c101
-rw-r--r--arch/sh/kernel/cpu/shmobile/pm.c3
-rw-r--r--arch/sparc/Kconfig23
-rw-r--r--arch/sparc/kernel/Makefile3
-rw-r--r--arch/unicore32/kernel/Makefile1
-rw-r--r--arch/x86/include/asm/cpufeature.h1
-rw-r--r--arch/x86/kernel/apm_32.c1
-rw-r--r--arch/x86/kernel/cpu/scattered.c3
-rw-r--r--drivers/acpi/Kconfig13
-rw-r--r--drivers/acpi/Makefile1
-rw-r--r--drivers/acpi/acpi_lpss.c292
-rw-r--r--drivers/acpi/acpi_memhotplug.c328
-rw-r--r--drivers/acpi/acpi_pad.c2
-rw-r--r--drivers/acpi/acpi_platform.c40
-rw-r--r--drivers/acpi/acpica/Makefile2
-rw-r--r--drivers/acpi/acpica/acglobal.h5
-rw-r--r--drivers/acpi/acpica/aclocal.h29
-rw-r--r--drivers/acpi/acpica/acmacros.h6
-rw-r--r--drivers/acpi/acpica/acnamesp.h29
-rw-r--r--drivers/acpi/acpica/acpredef.h1305
-rw-r--r--drivers/acpi/acpica/acutils.h28
-rw-r--r--drivers/acpi/acpica/dsutils.c10
-rw-r--r--drivers/acpi/acpica/dswexec.c2
-rw-r--r--drivers/acpi/acpica/evevent.c12
-rw-r--r--drivers/acpi/acpica/evgpe.c6
-rw-r--r--drivers/acpi/acpica/evsci.c4
-rw-r--r--drivers/acpi/acpica/evxface.c21
-rw-r--r--drivers/acpi/acpica/evxfevnt.c12
-rw-r--r--drivers/acpi/acpica/exoparg2.c11
-rw-r--r--drivers/acpi/acpica/exprep.c4
-rw-r--r--drivers/acpi/acpica/exutils.c4
-rw-r--r--drivers/acpi/acpica/hwacpi.c20
-rw-r--r--drivers/acpi/acpica/nsconvert.c443
-rw-r--r--drivers/acpi/acpica/nseval.c26
-rw-r--r--drivers/acpi/acpica/nspredef.c213
-rw-r--r--drivers/acpi/acpica/nsprepkg.c10
-rw-r--r--drivers/acpi/acpica/nsrepair.c381
-rw-r--r--drivers/acpi/acpica/nsrepair2.c16
-rw-r--r--drivers/acpi/acpica/nsutils.c8
-rw-r--r--drivers/acpi/acpica/psargs.c2
-rw-r--r--drivers/acpi/acpica/rscalc.c6
-rw-r--r--drivers/acpi/acpica/rsdump.c8
-rw-r--r--drivers/acpi/acpica/rslist.c8
-rw-r--r--drivers/acpi/acpica/rsxface.c8
-rw-r--r--drivers/acpi/acpica/tbfadt.c4
-rw-r--r--drivers/acpi/acpica/tbxface.c22
-rw-r--r--drivers/acpi/acpica/utaddress.c4
-rw-r--r--drivers/acpi/acpica/utcache.c18
-rw-r--r--drivers/acpi/acpica/utdelete.c96
-rw-r--r--drivers/acpi/acpica/utexcep.c26
-rw-r--r--drivers/acpi/acpica/utglobal.c2
-rw-r--r--drivers/acpi/acpica/utmutex.c9
-rw-r--r--drivers/acpi/acpica/utosi.c26
-rw-r--r--drivers/acpi/acpica/utpredef.c399
-rw-r--r--drivers/acpi/acpica/utxface.c17
-rw-r--r--drivers/acpi/battery.c2
-rw-r--r--drivers/acpi/bus.c5
-rw-r--r--drivers/acpi/button.c1
-rw-r--r--drivers/acpi/container.c152
-rw-r--r--drivers/acpi/device_pm.c39
-rw-r--r--drivers/acpi/fan.c8
-rw-r--r--drivers/acpi/internal.h21
-rw-r--r--drivers/acpi/osl.c4
-rw-r--r--drivers/acpi/pci_link.c1
-rw-r--r--drivers/acpi/pci_root.c4
-rw-r--r--drivers/acpi/power.c60
-rw-r--r--drivers/acpi/processor_idle.c1
-rw-r--r--drivers/acpi/processor_thermal.c24
-rw-r--r--drivers/acpi/processor_throttling.c3
-rw-r--r--drivers/acpi/scan.c531
-rw-r--r--drivers/acpi/sysfs.c66
-rw-r--r--drivers/acpi/thermal.c16
-rw-r--r--drivers/acpi/video.c318
-rw-r--r--drivers/acpi/video_detect.c25
-rw-r--r--drivers/base/power/domain.c6
-rw-r--r--drivers/base/power/generic_ops.c2
-rw-r--r--drivers/base/power/main.c2
-rw-r--r--drivers/base/power/opp.c1
-rw-r--r--drivers/base/power/runtime.c2
-rw-r--r--drivers/clk/x86/Makefile2
-rw-r--r--drivers/clk/x86/clk-lpss.c99
-rw-r--r--drivers/clk/x86/clk-lpss.h36
-rw-r--r--drivers/clk/x86/clk-lpt.c40
-rw-r--r--drivers/cpufreq/Kconfig89
-rw-r--r--drivers/cpufreq/Kconfig.arm148
-rw-r--r--drivers/cpufreq/Kconfig.powerpc18
-rw-r--r--drivers/cpufreq/Kconfig.x8617
-rw-r--r--drivers/cpufreq/Makefile41
-rw-r--r--drivers/cpufreq/acpi-cpufreq.c11
-rw-r--r--drivers/cpufreq/amd_freq_sensitivity.c148
-rw-r--r--drivers/cpufreq/arm_big_little.c278
-rw-r--r--drivers/cpufreq/arm_big_little.h40
-rw-r--r--drivers/cpufreq/arm_big_little_dt.c107
-rw-r--r--drivers/cpufreq/at32ap-cpufreq.c (renamed from arch/avr32/mach-at32ap/cpufreq.c)5
-rw-r--r--drivers/cpufreq/blackfin-cpufreq.c (renamed from arch/blackfin/mach-common/cpufreq.c)79
-rw-r--r--drivers/cpufreq/cpufreq-cpu0.c32
-rw-r--r--drivers/cpufreq/cpufreq-nforce2.c11
-rw-r--r--drivers/cpufreq/cpufreq.c145
-rw-r--r--drivers/cpufreq/cpufreq_conservative.c244
-rw-r--r--drivers/cpufreq/cpufreq_governor.c291
-rw-r--r--drivers/cpufreq/cpufreq_governor.h128
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c363
-rw-r--r--drivers/cpufreq/cris-artpec3-cpufreq.c (renamed from arch/cris/arch-v32/mach-a3/cpufreq.c)20
-rw-r--r--drivers/cpufreq/cris-etraxfs-cpufreq.c (renamed from arch/cris/arch-v32/mach-fs/cpufreq.c)17
-rw-r--r--drivers/cpufreq/davinci-cpufreq.c (renamed from arch/arm/mach-davinci/cpufreq.c)35
-rw-r--r--drivers/cpufreq/dbx500-cpufreq.c22
-rw-r--r--drivers/cpufreq/e_powersaver.c11
-rw-r--r--drivers/cpufreq/elanfreq.c10
-rw-r--r--drivers/cpufreq/exynos-cpufreq.c9
-rw-r--r--drivers/cpufreq/exynos5440-cpufreq.c481
-rw-r--r--drivers/cpufreq/gx-suspmod.c11
-rw-r--r--drivers/cpufreq/ia64-acpi-cpufreq.c (renamed from arch/ia64/kernel/cpufreq/acpi-cpufreq.c)23
-rw-r--r--drivers/cpufreq/imx6q-cpufreq.c12
-rw-r--r--drivers/cpufreq/integrator-cpufreq.c (renamed from arch/arm/mach-integrator/cpu.c)8
-rw-r--r--drivers/cpufreq/intel_pstate.c21
-rw-r--r--drivers/cpufreq/kirkwood-cpufreq.c18
-rw-r--r--drivers/cpufreq/longhaul.c18
-rw-r--r--drivers/cpufreq/loongson2_cpufreq.c (renamed from arch/mips/kernel/cpufreq/loongson2_cpufreq.c)11
-rw-r--r--drivers/cpufreq/maple-cpufreq.c5
-rw-r--r--drivers/cpufreq/omap-cpufreq.c34
-rw-r--r--drivers/cpufreq/p4-clockmod.c13
-rw-r--r--drivers/cpufreq/pcc-cpufreq.c5
-rw-r--r--drivers/cpufreq/powernow-k6.c12
-rw-r--r--drivers/cpufreq/powernow-k7.c10
-rw-r--r--drivers/cpufreq/powernow-k8.c19
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq.c (renamed from arch/powerpc/platforms/cell/cbe_cpufreq.c)8
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq.h (renamed from arch/powerpc/platforms/cell/cbe_cpufreq.h)4
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq_pervasive.c (renamed from arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c)2
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq_pmi.c (renamed from arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c)2
-rw-r--r--drivers/cpufreq/pxa2xx-cpufreq.c (renamed from arch/arm/mach-pxa/cpufreq-pxa2xx.c)12
-rw-r--r--drivers/cpufreq/pxa3xx-cpufreq.c (renamed from arch/arm/mach-pxa/cpufreq-pxa3xx.c)10
-rw-r--r--drivers/cpufreq/s3c2416-cpufreq.c5
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c7
-rw-r--r--drivers/cpufreq/s5pv210-cpufreq.c5
-rw-r--r--drivers/cpufreq/sa1100-cpufreq.c (renamed from arch/arm/mach-sa1100/cpu-sa1100.c)8
-rw-r--r--drivers/cpufreq/sa1110-cpufreq.c (renamed from arch/arm/mach-sa1100/cpu-sa1110.c)8
-rw-r--r--drivers/cpufreq/sc520_freq.c10
-rw-r--r--drivers/cpufreq/sh-cpufreq.c (renamed from arch/sh/kernel/cpufreq.c)22
-rw-r--r--drivers/cpufreq/sparc-us2e-cpufreq.c (renamed from arch/sparc/kernel/us2e_cpufreq.c)19
-rw-r--r--drivers/cpufreq/sparc-us3-cpufreq.c (renamed from arch/sparc/kernel/us3_cpufreq.c)19
-rw-r--r--drivers/cpufreq/spear-cpufreq.c7
-rw-r--r--drivers/cpufreq/speedstep-centrino.c28
-rw-r--r--drivers/cpufreq/speedstep-ich.c12
-rw-r--r--drivers/cpufreq/speedstep-smi.c5
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c (renamed from arch/arm/mach-tegra/cpu-tegra.c)17
-rw-r--r--drivers/cpufreq/unicore2-cpufreq.c (renamed from arch/unicore32/kernel/cpu-ucv2.c)7
-rw-r--r--drivers/cpuidle/Kconfig6
-rw-r--r--drivers/cpuidle/Makefile2
-rw-r--r--drivers/cpuidle/cpuidle-calxeda.c57
-rw-r--r--drivers/cpuidle/cpuidle-kirkwood.c29
-rw-r--r--drivers/cpuidle/cpuidle.c153
-rw-r--r--drivers/cpuidle/driver.c31
-rw-r--r--drivers/gpu/drm/i915/intel_opregion.c4
-rw-r--r--drivers/idle/intel_idle.c4
-rw-r--r--drivers/platform/x86/sony-laptop.c3
-rw-r--r--drivers/pnp/isapnp/core.c11
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c1
-rw-r--r--drivers/pnp/pnpbios/proc.c5
-rw-r--r--include/acpi/acexcep.h461
-rw-r--r--include/acpi/acoutput.h53
-rw-r--r--include/acpi/acpi_bus.h33
-rw-r--r--include/acpi/acpi_drivers.h1
-rw-r--r--include/acpi/acpixf.h2
-rw-r--r--include/acpi/actbl2.h47
-rw-r--r--include/acpi/actbl3.h55
-rw-r--r--include/acpi/actypes.h16
-rw-r--r--include/linux/acpi.h4
-rw-r--r--include/linux/clockchips.h32
-rw-r--r--include/linux/cpufreq.h21
-rw-r--r--include/linux/cpuidle.h23
-rw-r--r--include/linux/platform_data/clk-lpss.h18
-rw-r--r--kernel/power/suspend.c22
253 files changed, 6938 insertions, 4145 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-lpss_ltr b/Documentation/ABI/testing/sysfs-devices-lpss_ltr
new file mode 100644
index 00000000000..ea9298d9bba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-lpss_ltr
@@ -0,0 +1,44 @@
+What: /sys/devices/.../lpss_ltr/
+Date: March 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ The /sys/devices/.../lpss_ltr/ directory is only present for
+ devices included into the Intel Lynxpoint Low Power Subsystem
+ (LPSS). If present, it contains attributes containing the LTR
+ mode and the values of LTR registers of the device.
+
+What: /sys/devices/.../lpss_ltr/ltr_mode
+Date: March 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ The /sys/devices/.../lpss_ltr/ltr_mode attribute contains an
+ integer number (0 or 1) indicating whether or not the devices'
+ LTR functionality is working in the software mode (1).
+
+ This attribute is read-only. If the device's runtime PM status
+ is not "active", attempts to read from this attribute cause
+ -EAGAIN to be returned.
+
+What: /sys/devices/.../lpss_ltr/auto_ltr
+Date: March 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
+ current value of the device's AUTO_LTR register (raw)
+ represented as an 8-digit hexadecimal number.
+
+ This attribute is read-only. If the device's runtime PM status
+ is not "active", attempts to read from this attribute cause
+ -EAGAIN to be returned.
+
+What: /sys/devices/.../lpss_ltr/sw_ltr
+Date: March 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ The /sys/devices/.../lpss_ltr/auto_ltr attribute contains the
+ current value of the device's SW_LTR register (raw) represented
+ as an 8-digit hexadecimal number.
+
+ This attribute is read-only. If the device's runtime PM status
+ is not "active", attempts to read from this attribute cause
+ -EAGAIN to be returned.
diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_wakeup b/Documentation/ABI/testing/sysfs-devices-power_resources_wakeup
new file mode 100644
index 00000000000..e0588feeb6e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-power_resources_wakeup
@@ -0,0 +1,13 @@
+What: /sys/devices/.../power_resources_wakeup/
+Date: April 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ The /sys/devices/.../power_resources_wakeup/ directory is only
+ present for device objects representing ACPI device nodes that
+ require ACPI power resources for wakeup signaling.
+
+ If present, it contains symbolic links to device directories
+ representing ACPI power resources that need to be turned on for
+ the given device node to be able to signal wakeup. The names of
+ the links are the same as the names of the directories they
+ point to.
diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi
index dd930c8db41..ce9bee98b43 100644
--- a/Documentation/ABI/testing/sysfs-firmware-acpi
+++ b/Documentation/ABI/testing/sysfs-firmware-acpi
@@ -18,6 +18,32 @@ Description:
yoffset: The number of pixels between the top of the screen
and the top edge of the image.
+What: /sys/firmware/acpi/hotplug/
+Date: February 2013
+Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Description:
+ There are separate hotplug profiles for different classes of
+ devices supported by ACPI, such as containers, memory modules,
+ processors, PCI root bridges etc. A hotplug profile for a given
+ class of devices is a collection of settings defining the way
+ that class of devices will be handled by the ACPI core hotplug
+ code. Those profiles are represented in sysfs as subdirectories
+ of /sys/firmware/acpi/hotplug/.
+
+ The following setting is available to user space for each
+ hotplug profile:
+
+ enabled: If set, the ACPI core will handle notifications of
+ hotplug events associated with the given class of
+ devices and will allow those devices to be ejected with
+ the help of the _EJ0 control method. Unsetting it
+ effectively disables hotplug for the correspoinding
+ class of devices.
+
+ The value of the above attribute is an integer number: 1 (set)
+ or 0 (unset). Attempts to write any other values to it will
+ cause -EINVAL to be returned.
+
What: /sys/firmware/acpi/interrupts/
Date: February 2008
Contact: Len Brown <lenb@kernel.org>
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 72f70b16d29..a3585eac83b 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -108,8 +108,9 @@ policy->governor must contain the "default policy" for
cpufreq_driver.target is called with
these values.
-For setting some of these values, the frequency table helpers might be
-helpful. See the section 2 for more information on them.
+For setting some of these values (cpuinfo.min[max]_freq, policy->min[max]), the
+frequency table helpers might be helpful. See the section 2 for more information
+on them.
SMP systems normally have same clock source for a group of cpus. For these the
.init() would be called only once for the first online cpu. Here the .init()
@@ -184,10 +185,10 @@ the reference implementation in drivers/cpufreq/longrun.c
As most cpufreq processors only allow for being set to a few specific
frequencies, a "frequency table" with some functions might assist in
some work of the processor driver. Such a "frequency table" consists
-of an array of struct cpufreq_freq_table entries, with any value in
+of an array of struct cpufreq_frequency_table entries, with any value in
"index" you want to use, and the corresponding frequency in
"frequency". At the end of the table, you need to add a
-cpufreq_freq_table entry with frequency set to CPUFREQ_TABLE_END. And
+cpufreq_frequency_table entry with frequency set to CPUFREQ_TABLE_END. And
if you want to skip one entry in the table, set the frequency to
CPUFREQ_ENTRY_INVALID. The entries don't need to be in ascending
order.
diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt
index c7a2eb8450c..66f9cc31068 100644
--- a/Documentation/cpu-freq/governors.txt
+++ b/Documentation/cpu-freq/governors.txt
@@ -167,6 +167,27 @@ of load evaluation and helping the CPU stay at its top speed when truly
busy, rather than shifting back and forth in speed. This tunable has no
effect on behavior at lower speeds/lower CPU loads.
+powersave_bias: this parameter takes a value between 0 to 1000. It
+defines the percentage (times 10) value of the target frequency that
+will be shaved off of the target. For example, when set to 100 -- 10%,
+when ondemand governor would have targeted 1000 MHz, it will target
+1000 MHz - (10% of 1000 MHz) = 900 MHz instead. This is set to 0
+(disabled) by default.
+When AMD frequency sensitivity powersave bias driver --
+drivers/cpufreq/amd_freq_sensitivity.c is loaded, this parameter
+defines the workload frequency sensitivity threshold in which a lower
+frequency is chosen instead of ondemand governor's original target.
+The frequency sensitivity is a hardware reported (on AMD Family 16h
+Processors and above) value between 0 to 100% that tells software how
+the performance of the workload running on a CPU will change when
+frequency changes. A workload with sensitivity of 0% (memory/IO-bound)
+will not perform any better on higher core frequency, whereas a
+workload with sensitivity of 100% (CPU-bound) will perform better
+higher the frequency. When the driver is loaded, this is set to 400
+by default -- for CPUs running workloads with sensitivity value below
+40%, a lower frequency is chosen. Unloading the driver or writing 0
+will disable this feature.
+
2.5 Conservative
----------------
@@ -191,6 +212,12 @@ governor but for the opposite direction. For example when set to its
default value of '20' it means that if the CPU usage needs to be below
20% between samples to have the frequency decreased.
+sampling_down_factor: similar functionality as in "ondemand" governor.
+But in "conservative", it controls the rate at which the kernel makes
+a decision on when to decrease the frequency while running in any
+speed. Load for frequency increase is still evaluated every
+sampling rate.
+
3. The Governor Interface in the CPUfreq Core
=============================================
diff --git a/Documentation/cpuidle/driver.txt b/Documentation/cpuidle/driver.txt
index 7a9e09ece93..1b0d81d9258 100644
--- a/Documentation/cpuidle/driver.txt
+++ b/Documentation/cpuidle/driver.txt
@@ -15,11 +15,17 @@ has mechanisms in place to support actual entry-exit into CPU idle states.
cpuidle driver initializes the cpuidle_device structure for each CPU device
and registers with cpuidle using cpuidle_register_device.
+If all the idle states are the same, the wrapper function cpuidle_register
+could be used instead.
+
It can also support the dynamic changes (like battery <-> AC), by using
cpuidle_pause_and_lock, cpuidle_disable_device and cpuidle_enable_device,
cpuidle_resume_and_unlock.
Interfaces:
+extern int cpuidle_register(struct cpuidle_driver *drv,
+ const struct cpumask *const coupled_cpus);
+extern int cpuidle_unregister(struct cpuidle_driver *drv);
extern int cpuidle_register_driver(struct cpuidle_driver *drv);
extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
extern int cpuidle_register_device(struct cpuidle_device *dev);
diff --git a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
new file mode 100644
index 00000000000..0715695e94a
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
@@ -0,0 +1,65 @@
+Generic ARM big LITTLE cpufreq driver's DT glue
+-----------------------------------------------
+
+This is DT specific glue layer for generic cpufreq driver for big LITTLE
+systems.
+
+Both required and optional properties listed below must be defined
+under node /cpus/cpu@x. Where x is the first cpu inside a cluster.
+
+FIXME: Cpus should boot in the order specified in DT and all cpus for a cluster
+must be present contiguously. Generic DT driver will check only node 'x' for
+cpu:x.
+
+Required properties:
+- operating-points: Refer to Documentation/devicetree/bindings/power/opp.txt
+ for details
+
+Optional properties:
+- clock-latency: Specify the possible maximum transition latency for clock,
+ in unit of nanoseconds.
+
+Examples:
+
+cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a15";
+ reg = <0>;
+ next-level-cache = <&L2>;
+ operating-points = <
+ /* kHz uV */
+ 792000 1100000
+ 396000 950000
+ 198000 850000
+ >;
+ clock-latency = <61036>; /* two CLK32 periods */
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a15";
+ reg = <1>;
+ next-level-cache = <&L2>;
+ };
+
+ cpu@100 {
+ compatible = "arm,cortex-a7";
+ reg = <100>;
+ next-level-cache = <&L2>;
+ operating-points = <
+ /* kHz uV */
+ 792000 950000
+ 396000 750000
+ 198000 450000
+ >;
+ clock-latency = <61036>; /* two CLK32 periods */
+ };
+
+ cpu@101 {
+ compatible = "arm,cortex-a7";
+ reg = <101>;
+ next-level-cache = <&L2>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt
index 4416ccc3347..051f764bedb 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-cpu0.txt
@@ -32,7 +32,7 @@ cpus {
396000 950000
198000 850000
>;
- transition-latency = <61036>; /* two CLK32 periods */
+ clock-latency = <61036>; /* two CLK32 periods */
};
cpu@1 {
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt
new file mode 100644
index 00000000000..caff1a57436
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt
@@ -0,0 +1,28 @@
+
+Exynos5440 cpufreq driver
+-------------------
+
+Exynos5440 SoC cpufreq driver for CPU frequency scaling.
+
+Required properties:
+- interrupts: Interrupt to know the completion of cpu frequency change.
+- operating-points: Table of frequencies and voltage CPU could be transitioned into,
+ in the decreasing order. Frequency should be in KHz units and voltage
+ should be in microvolts.
+
+Optional properties:
+- clock-latency: Clock monitor latency in microsecond.
+
+All the required listed above must be defined under node cpufreq.
+
+Example:
+--------
+ cpufreq@160000 {
+ compatible = "samsung,exynos5440-cpufreq";
+ reg = <0x160000 0x1000>;
+ interrupts = <0 57 0>;
+ operating-points = <
+ 1000000 975000
+ 800000 925000>;
+ clock-latency = <100000>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index ea8f65fc6fa..75f6282d342 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2203,12 +2203,34 @@ F: drivers/net/ethernet/ti/cpmac.c
CPU FREQUENCY DRIVERS
M: Rafael J. Wysocki <rjw@sisk.pl>
+M: Viresh Kumar <viresh.kumar@linaro.org>
L: cpufreq@vger.kernel.org
L: linux-pm@vger.kernel.org
S: Maintained
+T: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
F: drivers/cpufreq/
F: include/linux/cpufreq.h
+CPU FREQUENCY DRIVERS - ARM BIG LITTLE
+M: Viresh Kumar <viresh.kumar@linaro.org>
+M: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
+L: cpufreq@vger.kernel.org
+L: linux-pm@vger.kernel.org
+W: http://www.arm.com/products/processors/technologies/biglittleprocessing.php
+S: Maintained
+F: drivers/cpufreq/arm_big_little.h
+F: drivers/cpufreq/arm_big_little.c
+F: drivers/cpufreq/arm_big_little_dt.c
+
+CPUIDLE DRIVERS
+M: Rafael J. Wysocki <rjw@sisk.pl>
+M: Daniel Lezcano <daniel.lezcano@linaro.org>
+L: linux-pm@vger.kernel.org
+S: Maintained
+T: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
+F: drivers/cpuidle/*
+F: include/linux/cpuidle.h
+
CPUID/MSR DRIVER
M: "H. Peter Anvin" <hpa@zytor.com>
S: Maintained
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a39e3214ea3..006f9838dd4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2163,7 +2163,6 @@ endmenu
menu "CPU Power Management"
if ARCH_HAS_CPUFREQ
-
source "drivers/cpufreq/Kconfig"
config CPU_FREQ_IMX
@@ -2173,30 +2172,6 @@ config CPU_FREQ_IMX
help
This enables the CPUfreq driver for i.MX CPUs.
-config CPU_FREQ_SA1100
- bool
-
-config CPU_FREQ_SA1110
- bool
-
-config CPU_FREQ_INTEGRATOR
- tristate "CPUfreq driver for ARM Integrator CPUs"
- depends on ARCH_INTEGRATOR && CPU_FREQ
- default y
- help
- This enables the CPUfreq driver for ARM Integrator CPUs.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If in doubt, say Y.
-
-config CPU_FREQ_PXA
- bool
- depends on CPU_FREQ && ARCH_PXA && PXA25x
- default y
- select CPU_FREQ_DEFAULT_GOV_USERSPACE
- select CPU_FREQ_TABLE
-
config CPU_FREQ_S3C
bool
help
diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig
index 13482ea58b0..93f3794ba5c 100644
--- a/arch/arm/configs/kirkwood_defconfig
+++ b/arch/arm/configs/kirkwood_defconfig
@@ -56,7 +56,6 @@ CONFIG_AEABI=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CPU_IDLE=y
-CONFIG_CPU_IDLE_KIRKWOOD=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
index 0c6381516a5..48f1228c611 100644
--- a/arch/arm/mach-at91/cpuidle.c
+++ b/arch/arm/mach-at91/cpuidle.c
@@ -27,8 +27,6 @@
#define AT91_MAX_STATES 2
-static DEFINE_PER_CPU(struct cpuidle_device, at91_cpuidle_device);
-
/* Actual code that puts the SoC in different idle states */
static int at91_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
@@ -47,7 +45,6 @@ static int at91_enter_idle(struct cpuidle_device *dev,
static struct cpuidle_driver at91_idle_driver = {
.name = "at91_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = at91_enter_idle,
@@ -61,20 +58,9 @@ static struct cpuidle_driver at91_idle_driver = {
};
/* Initialize CPU idle by registering the idle states */
-static int at91_init_cpuidle(void)
+static int __init at91_init_cpuidle(void)
{
- struct cpuidle_device *device;
-
- device = &per_cpu(at91_cpuidle_device, smp_processor_id());
- device->state_count = AT91_MAX_STATES;
-
- cpuidle_register_driver(&at91_idle_driver);
-
- if (cpuidle_register_device(device)) {
- printk(KERN_ERR "at91_init_cpuidle: Failed registering\n");
- return -EIO;
- }
- return 0;
+ return cpuidle_register(&at91_idle_driver, NULL);
}
device_initcall(at91_init_cpuidle);
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index fb5c1aa98a6..dd1ffccc75e 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -37,7 +37,6 @@ obj-$(CONFIG_MACH_MITYOMAPL138) += board-mityomapl138.o
obj-$(CONFIG_MACH_OMAPL138_HAWKBOARD) += board-omapl138-hawk.o
# Power Management
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_SUSPEND) += pm.o sleep.o
obj-$(CONFIG_HAVE_CLK) += pm_domain.o
diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index 5ac9e9384b1..36aef3a7ded 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -25,7 +25,6 @@
#define DAVINCI_CPUIDLE_MAX_STATES 2
-static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
static void __iomem *ddr2_reg_base;
static bool ddr2_pdown;
@@ -50,14 +49,10 @@ static void davinci_save_ddr_power(int enter, bool pdown)
/* Actual code that puts the SoC in different idle states */
static int davinci_enter_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
+ struct cpuidle_driver *drv, int index)
{
davinci_save_ddr_power(1, ddr2_pdown);
-
- index = cpuidle_wrap_enter(dev, drv, index,
- arm_cpuidle_simple_enter);
-
+ cpu_do_idle();
davinci_save_ddr_power(0, ddr2_pdown);
return index;
@@ -66,7 +61,6 @@ static int davinci_enter_idle(struct cpuidle_device *dev,
static struct cpuidle_driver davinci_idle_driver = {
.name = "cpuidle-davinci",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = davinci_enter_idle,
@@ -81,12 +75,8 @@ static struct cpuidle_driver davinci_idle_driver = {
static int __init davinci_cpuidle_probe(struct platform_device *pdev)
{
- int ret;
- struct cpuidle_device *device;
struct davinci_cpuidle_config *pdata = pdev->dev.platform_data;
- device = &per_cpu(davinci_cpuidle_device, smp_processor_id());
-
if (!pdata) {
dev_err(&pdev->dev, "cannot get platform data\n");
return -ENOENT;
@@ -96,20 +86,7 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
ddr2_pdown = pdata->ddr2_pdown;
- ret = cpuidle_register_driver(&davinci_idle_driver);
- if (ret) {
- dev_err(&pdev->dev, "failed to register driver\n");
- return ret;
- }
-
- ret = cpuidle_register_device(device);
- if (ret) {
- dev_err(&pdev->dev, "failed to register device\n");
- cpuidle_unregister_driver(&davinci_idle_driver);
- return ret;
- }
-
- return 0;
+ return cpuidle_register(&davinci_idle_driver, NULL);
}
static struct platform_driver davinci_cpuidle_driver = {
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 70f94c87479..d5dde072733 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -72,10 +72,12 @@ config SOC_EXYNOS5440
bool "SAMSUNG EXYNOS5440"
default y
depends on ARCH_EXYNOS5
+ select ARCH_HAS_OPP
select ARM_ARCH_TIMER
select AUTO_ZRELADDR
select PINCTRL
select PINCTRL_EXYNOS5440
+ select PM_OPP
help
Enable EXYNOS5440 SoC support
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index fcfe0251aa3..498a7a23e26 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -58,7 +58,6 @@ static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device);
static struct cpuidle_driver exynos4_idle_driver = {
.name = "exynos4_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
};
/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index c4ce0906d76..cb70961b623 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -30,7 +30,7 @@ obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
obj-$(CONFIG_CPU_FREQ_IMX) += cpufreq.o
ifeq ($(CONFIG_CPU_IDLE),y)
-obj-y += cpuidle.o
+obj-$(CONFIG_SOC_IMX5) += cpuidle-imx5.o
obj-$(CONFIG_SOC_IMX6Q) += cpuidle-imx6q.o
endif
diff --git a/arch/arm/mach-imx/cpufreq.c b/arch/arm/mach-imx/cpufreq.c
index d8c75c3c925..387dc4cceca 100644
--- a/arch/arm/mach-imx/cpufreq.c
+++ b/arch/arm/mach-imx/cpufreq.c
@@ -87,13 +87,12 @@ static int mxc_set_target(struct cpufreq_policy *policy,
freqs.old = clk_get_rate(cpu_clk) / 1000;
freqs.new = freq_Hz / 1000;
- freqs.cpu = 0;
freqs.flags = 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
ret = set_cpu_freq(freq_Hz);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}
@@ -145,14 +144,11 @@ static int mxc_cpufreq_init(struct cpufreq_policy *policy)
imx_freq_table[i].frequency = CPUFREQ_TABLE_END;
policy->cur = clk_get_rate(cpu_clk) / 1000;
- policy->min = policy->cpuinfo.min_freq = cpu_freq_khz_min;
- policy->max = policy->cpuinfo.max_freq = cpu_freq_khz_max;
/* Manual states, that PLL stabilizes in two CLK32 periods */
policy->cpuinfo.transition_latency = 2 * NANOSECOND / CLK32_FREQ;
ret = cpufreq_frequency_table_cpuinfo(policy, imx_freq_table);
-
if (ret < 0) {
printk(KERN_ERR "%s: failed to register i.MXC CPUfreq with error code %d\n",
__func__, ret);
diff --git a/arch/arm/mach-imx/cpuidle-imx5.c b/arch/arm/mach-imx/cpuidle-imx5.c
new file mode 100644
index 00000000000..5a47e3c6172
--- /dev/null
+++ b/arch/arm/mach-imx/cpuidle-imx5.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/cpuidle.h>
+#include <linux/module.h>
+#include <asm/system_misc.h>
+
+static int imx5_cpuidle_enter(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ arm_pm_idle();
+ return index;
+}
+
+static struct cpuidle_driver imx5_cpuidle_driver = {
+ .name = "imx5_cpuidle",
+ .owner = THIS_MODULE,
+ .states[0] = {
+ .enter = imx5_cpuidle_enter,
+ .exit_latency = 2,
+ .target_residency = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .name = "IMX5 SRPG",
+ .desc = "CPU state retained,powered off",
+ },
+ .state_count = 1,
+};
+
+int __init imx5_cpuidle_init(void)
+{
+ return cpuidle_register(&imx5_cpuidle_driver, NULL);
+}
diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
index d533e2695f0..23ddfb693b2 100644
--- a/arch/arm/mach-imx/cpuidle-imx6q.c
+++ b/arch/arm/mach-imx/cpuidle-imx6q.c
@@ -6,7 +6,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/clockchips.h>
#include <linux/cpuidle.h>
#include <linux/module.h>
#include <asm/cpuidle.h>
@@ -21,10 +20,6 @@ static DEFINE_SPINLOCK(master_lock);
static int imx6q_enter_wait(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
- int cpu = dev->cpu;
-
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
-
if (atomic_inc_return(&master) == num_online_cpus()) {
/*
* With this lock, we prevent other cpu to exit and enter
@@ -43,26 +38,13 @@ idle:
cpu_do_idle();
done:
atomic_dec(&master);
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
return index;
}
-/*
- * For each cpu, setup the broadcast timer because local timer
- * stops for the states other than WFI.
- */
-static void imx6q_setup_broadcast_timer(void *arg)
-{
- int cpu = smp_processor_id();
-
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu);
-}
-
static struct cpuidle_driver imx6q_cpuidle_driver = {
.name = "imx6q_cpuidle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states = {
/* WFI */
ARM_CPUIDLE_WFI_STATE,
@@ -70,7 +52,8 @@ static struct cpuidle_driver imx6q_cpuidle_driver = {
{
.exit_latency = 50,
.target_residency = 75,
- .flags = CPUIDLE_FLAG_TIME_VALID,
+ .flags = CPUIDLE_FLAG_TIME_VALID |
+ CPUIDLE_FLAG_TIMER_STOP,
.enter = imx6q_enter_wait,
.name = "WAIT",
.desc = "Clock off",
@@ -88,8 +71,5 @@ int __init imx6q_cpuidle_init(void)
/* Set chicken bit to get a reliable WAIT mode support */
imx6q_set_chicken_bit();
- /* Configure the broadcast timer on each cpu */
- on_each_cpu(imx6q_setup_broadcast_timer, NULL, 1);
-
- return imx_cpuidle_init(&imx6q_cpuidle_driver);
+ return cpuidle_register(&imx6q_cpuidle_driver, NULL);
}
diff --git a/arch/arm/mach-imx/cpuidle.c b/arch/arm/mach-imx/cpuidle.c
deleted file mode 100644
index d4cb511a44a..00000000000
--- a/arch/arm/mach-imx/cpuidle.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- * Copyright 2012 Linaro Ltd.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/cpuidle.h>
-#include <linux/err.h>
-#include <linux/hrtimer.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-static struct cpuidle_device __percpu * imx_cpuidle_devices;
-
-static void __init imx_cpuidle_devices_uninit(void)
-{
- int cpu_id;
- struct cpuidle_device *dev;
-
- for_each_possible_cpu(cpu_id) {
- dev = per_cpu_ptr(imx_cpuidle_devices, cpu_id);
- cpuidle_unregister_device(dev);
- }
-
- free_percpu(imx_cpuidle_devices);
-}
-
-int __init imx_cpuidle_init(struct cpuidle_driver *drv)
-{
- struct cpuidle_device *dev;
- int cpu_id, ret;
-
- if (drv->state_count > CPUIDLE_STATE_MAX) {
- pr_err("%s: state_count exceeds maximum\n", __func__);
- return -EINVAL;
- }
-
- ret = cpuidle_register_driver(drv);
- if (ret) {
- pr_err("%s: Failed to register cpuidle driver with error: %d\n",
- __func__, ret);
- return ret;
- }
-
- imx_cpuidle_devices = alloc_percpu(struct cpuidle_device);
- if (imx_cpuidle_devices == NULL) {
- ret = -ENOMEM;
- goto unregister_drv;
- }
-
- /* initialize state data for each cpuidle_device */
- for_each_possible_cpu(cpu_id) {
- dev = per_cpu_ptr(imx_cpuidle_devices, cpu_id);
- dev->cpu = cpu_id;
- dev->state_count = drv->state_count;
-
- ret = cpuidle_register_device(dev);
- if (ret) {
- pr_err("%s: Failed to register cpu %u, error: %d\n",
- __func__, cpu_id, ret);
- goto uninit;
- }
- }
-
- return 0;
-
-uninit:
- imx_cpuidle_devices_uninit();
-
-unregister_drv:
- cpuidle_unregister_driver(drv);
- return ret;
-}
diff --git a/arch/arm/mach-imx/cpuidle.h b/arch/arm/mach-imx/cpuidle.h
index e092d1359d9..786f98ecc14 100644
--- a/arch/arm/mach-imx/cpuidle.h
+++ b/arch/arm/mach-imx/cpuidle.h
@@ -10,18 +10,16 @@
* http://www.gnu.org/copyleft/gpl.html
*/
-#include <linux/cpuidle.h>
-
#ifdef CONFIG_CPU_IDLE
-extern int imx_cpuidle_init(struct cpuidle_driver *drv);
+extern int imx5_cpuidle_init(void);
extern int imx6q_cpuidle_init(void);
#else
-static inline int imx_cpuidle_init(struct cpuidle_driver *drv)
+static inline int imx5_cpuidle_init(void)
{
- return -ENODEV;
+ return 0;
}
static inline int imx6q_cpuidle_init(void)
{
- return -ENODEV;
+ return 0;
}
#endif
diff --git a/arch/arm/mach-imx/pm-imx5.c b/arch/arm/mach-imx/pm-imx5.c
index f67fd7ee812..82e79c658eb 100644
--- a/arch/arm/mach-imx/pm-imx5.c
+++ b/arch/arm/mach-imx/pm-imx5.c
@@ -149,33 +149,6 @@ static void imx5_pm_idle(void)
imx5_cpu_do_idle();
}
-static int imx5_cpuidle_enter(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int idx)
-{
- int ret;
-
- ret = imx5_cpu_do_idle();
- if (ret < 0)
- return ret;
-
- return idx;
-}
-
-static struct cpuidle_driver imx5_cpuidle_driver = {
- .name = "imx5_cpuidle",
- .owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
- .states[0] = {
- .enter = imx5_cpuidle_enter,
- .exit_latency = 2,
- .target_residency = 1,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "IMX5 SRPG",
- .desc = "CPU state retained,powered off",
- },
- .state_count = 1,
-};
-
static int __init imx5_pm_common_init(void)
{
int ret;
@@ -193,8 +166,7 @@ static int __init imx5_pm_common_init(void)
/* Set the registers to the default cpu idle state. */
mx5_cpu_lp_set(IMX5_DEFAULT_CPU_IDLE_STATE);
- imx_cpuidle_init(&imx5_cpuidle_driver);
- return 0;
+ return imx5_cpuidle_init();
}
void __init imx51_pm_init(void)
diff --git a/arch/arm/mach-integrator/Makefile b/arch/arm/mach-integrator/Makefile
index 5521d18bf19..d14d6b76f4c 100644
--- a/arch/arm/mach-integrator/Makefile
+++ b/arch/arm/mach-integrator/Makefile
@@ -9,5 +9,4 @@ obj-$(CONFIG_ARCH_INTEGRATOR_AP) += integrator_ap.o
obj-$(CONFIG_ARCH_INTEGRATOR_CP) += integrator_cp.o
obj-$(CONFIG_PCI) += pci_v3.o pci.o
-obj-$(CONFIG_CPU_FREQ_INTEGRATOR) += cpu.o
obj-$(CONFIG_INTEGRATOR_IMPD1) += impd1.o
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index d6ba13e1c54..14522d077c8 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -249,7 +249,6 @@ extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
extern int omap4_finish_suspend(unsigned long cpu_state);
extern void omap4_cpu_resume(void);
extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
-extern u32 omap4_mpuss_read_prev_context_state(void);
#else
static inline int omap4_enter_lowpower(unsigned int cpu,
unsigned int power_state)
@@ -277,10 +276,6 @@ static inline int omap4_finish_suspend(unsigned long cpu_state)
static inline void omap4_cpu_resume(void)
{}
-static inline u32 omap4_mpuss_read_prev_context_state(void)
-{
- return 0;
-}
#endif
struct omap_sdrc_params;
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 80392fca86c..cca045c95fb 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -26,6 +26,7 @@
#include <linux/cpuidle.h>
#include <linux/export.h>
#include <linux/cpu_pm.h>
+#include <asm/cpuidle.h>
#include "powerdomain.h"
#include "clockdomain.h"
@@ -99,11 +100,15 @@ static struct omap3_idle_statedata omap3_idle_data[] = {
},
};
-/* Private functions */
-
-static int __omap3_enter_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
+/**
+ * omap3_enter_idle - Programs OMAP3 to enter the specified state
+ * @dev: cpuidle device
+ * @drv: cpuidle driver
+ * @index: the index of state to be entered
+ */
+static int omap3_enter_idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
{
struct omap3_idle_statedata *cx = &omap3_idle_data[index];
@@ -149,22 +154,6 @@ return_sleep_time:
}
/**
- * omap3_enter_idle - Programs OMAP3 to enter the specified state
- * @dev: cpuidle device
- * @drv: cpuidle driver
- * @index: the index of state to be entered
- *
- * Called from the CPUidle framework to program the device to the
- * specified target state selected by the governor.
- */
-static inline int omap3_enter_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
-{
- return cpuidle_wrap_enter(dev, drv, index, __omap3_enter_idle);
-}
-
-/**
* next_valid_state - Find next valid C-state
* @dev: cpuidle device
* @drv: cpuidle driver
@@ -271,11 +260,9 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
return ret;
}
-static DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev);
-
static struct cpuidle_driver omap3_idle_driver = {
- .name = "omap3_idle",
- .owner = THIS_MODULE,
+ .name = "omap3_idle",
+ .owner = THIS_MODULE,
.states = {
{
.enter = omap3_enter_idle_bm,
@@ -348,8 +335,6 @@ static struct cpuidle_driver omap3_idle_driver = {
*/
int __init omap3_idle_init(void)
{
- struct cpuidle_device *dev;
-
mpu_pd = pwrdm_lookup("mpu_pwrdm");
core_pd = pwrdm_lookup("core_pwrdm");
per_pd = pwrdm_lookup("per_pwrdm");
@@ -358,16 +343,5 @@ int __init omap3_idle_init(void)
if (!mpu_pd || !core_pd || !per_pd || !cam_pd)
return -ENODEV;
- cpuidle_register_driver(&omap3_idle_driver);
-
- dev = &per_cpu(omap3_idle_dev, smp_processor_id());
- dev->cpu = 0;
-
- if (cpuidle_register_device(dev)) {
- printk(KERN_ERR "%s: CPUidle register device failed\n",
- __func__);
- return -EIO;
- }
-
- return 0;
+ return cpuidle_register(&omap3_idle_driver, NULL);
}
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
index d639aef0ded..5a286b56205 100644
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -1,7 +1,7 @@
/*
- * OMAP4 CPU idle Routines
+ * OMAP4+ CPU idle Routines
*
- * Copyright (C) 2011 Texas Instruments, Inc.
+ * Copyright (C) 2011-2013 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.com>
* Rajendra Nayak <rnayak@ti.com>
*
@@ -14,8 +14,8 @@
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/export.h>
-#include <linux/clockchips.h>
+#include <asm/cpuidle.h>
#include <asm/proc-fns.h>
#include "common.h"
@@ -24,13 +24,13 @@
#include "clockdomain.h"
/* Machine specific information */
-struct omap4_idle_statedata {
+struct idle_statedata {
u32 cpu_state;
u32 mpu_logic_state;
u32 mpu_state;
};
-static struct omap4_idle_statedata omap4_idle_data[] = {
+static struct idle_statedata omap4_idle_data[] = {
{
.cpu_state = PWRDM_POWER_ON,
.mpu_state = PWRDM_POWER_ON,
@@ -53,11 +53,12 @@ static struct clockdomain *cpu_clkdm[NR_CPUS];
static atomic_t abort_barrier;
static bool cpu_done[NR_CPUS];
+static struct idle_statedata *state_ptr = &omap4_idle_data[0];
/* Private functions */
/**
- * omap4_enter_idle_coupled_[simple/coupled] - OMAP4 cpuidle entry functions
+ * omap_enter_idle_[simple/coupled] - OMAP4PLUS cpuidle entry functions
* @dev: cpuidle device
* @drv: cpuidle driver
* @index: the index of state to be entered
@@ -66,7 +67,7 @@ static bool cpu_done[NR_CPUS];
* specified low power state selected by the governor.
* Returns the amount of time spent in the low power state.
*/
-static int omap4_enter_idle_simple(struct cpuidle_device *dev,
+static int omap_enter_idle_simple(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
@@ -77,12 +78,11 @@ static int omap4_enter_idle_simple(struct cpuidle_device *dev,
return index;
}
-static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
+static int omap_enter_idle_coupled(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
- struct omap4_idle_statedata *cx = &omap4_idle_data[index];
- int cpu_id = smp_processor_id();
+ struct idle_statedata *cx = state_ptr + index;
local_fiq_disable();
@@ -109,8 +109,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
}
}
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id);
-
/*
* Call idle CPU PM enter notifier chain so that
* VFP and per CPU interrupt context is saved.
@@ -149,11 +147,10 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
* Call idle CPU cluster PM exit notifier chain
* to restore GIC and wakeupgen context.
*/
- if (omap4_mpuss_read_prev_context_state())
+ if ((cx->mpu_state == PWRDM_POWER_RET) &&
+ (cx->mpu_logic_state == PWRDM_POWER_OFF))
cpu_cluster_pm_exit();
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id);
-
fail:
cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
cpu_done[dev->cpu] = false;
@@ -163,49 +160,38 @@ fail:
return index;
}
-/*
- * For each cpu, setup the broadcast timer because local timers
- * stops for the states above C1.
- */
-static void omap_setup_broadcast_timer(void *arg)
-{
- int cpu = smp_processor_id();
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu);
-}
-
-static DEFINE_PER_CPU(struct cpuidle_device, omap4_idle_dev);
-
static struct cpuidle_driver omap4_idle_driver = {
.name = "omap4_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states = {
{
/* C1 - CPU0 ON + CPU1 ON + MPU ON */
.exit_latency = 2 + 2,
.target_residency = 5,
.flags = CPUIDLE_FLAG_TIME_VALID,
- .enter = omap4_enter_idle_simple,
+ .enter = omap_enter_idle_simple,
.name = "C1",
- .desc = "MPUSS ON"
+ .desc = "CPUx ON, MPUSS ON"
},
{
/* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */
.exit_latency = 328 + 440,
.target_residency = 960,
- .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED,
- .enter = omap4_enter_idle_coupled,
+ .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED |
+ CPUIDLE_FLAG_TIMER_STOP,
+ .enter = omap_enter_idle_coupled,
.name = "C2",
- .desc = "MPUSS CSWR",
+ .desc = "CPUx OFF, MPUSS CSWR",
},
{
/* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */
.exit_latency = 460 + 518,
.target_residency = 1100,
- .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED,
- .enter = omap4_enter_idle_coupled,
+ .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED |
+ CPUIDLE_FLAG_TIMER_STOP,
+ .enter = omap_enter_idle_coupled,
.name = "C3",
- .desc = "MPUSS OSWR",
+ .desc = "CPUx OFF, MPUSS OSWR",
},
},
.state_count = ARRAY_SIZE(omap4_idle_data),
@@ -215,16 +201,13 @@ static struct cpuidle_driver omap4_idle_driver = {
/* Public functions */
/**
- * omap4_idle_init - Init routine for OMAP4 idle
+ * omap4_idle_init - Init routine for OMAP4+ idle
*
- * Registers the OMAP4 specific cpuidle driver to the cpuidle
+ * Registers the OMAP4+ specific cpuidle driver to the cpuidle
* framework with the valid set of states.
*/
int __init omap4_idle_init(void)
{
- struct cpuidle_device *dev;
- unsigned int cpu_id = 0;
-
mpu_pd = pwrdm_lookup("mpu_pwrdm");
cpu_pd[0] = pwrdm_lookup("cpu0_pwrdm");
cpu_pd[1] = pwrdm_lookup("cpu1_pwrdm");
@@ -236,22 +219,5 @@ int __init omap4_idle_init(void)
if (!cpu_clkdm[0] || !cpu_clkdm[1])
return -ENODEV;
- /* Configure the broadcast timer on each cpu */
- on_each_cpu(omap_setup_broadcast_timer, NULL, 1);
-
- for_each_cpu(cpu_id, cpu_online_mask) {
- dev = &per_cpu(omap4_idle_dev, cpu_id);
- dev->cpu = cpu_id;
-#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
- dev->coupled_cpus = *cpu_online_mask;
-#endif
- cpuidle_register_driver(&omap4_idle_driver);
-
- if (cpuidle_register_device(dev)) {
- pr_err("%s: CPUidle register failed\n", __func__);
- return -EIO;
- }
- }
-
- return 0;
+ return cpuidle_register(&omap4_idle_driver, cpu_online_mask);
}
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 8bcb64bcdcd..e80327b6c81 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -139,20 +139,6 @@ static inline void cpu_clear_prev_logic_pwrst(unsigned int cpu_id)
}
}
-/**
- * omap4_mpuss_read_prev_context_state:
- * Function returns the MPUSS previous context state
- */
-u32 omap4_mpuss_read_prev_context_state(void)
-{
- u32 reg;
-
- reg = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
- OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET);
- reg &= OMAP4430_LOSTCONTEXT_DFF_MASK;
- return reg;
-}
-
/*
* Store the CPU cluster state for L2X0 low power operations.
*/
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index dec553349ae..e742118fcfd 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -264,6 +264,12 @@ static void __init omap4_init_voltages(void)
omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
}
+static inline void omap_init_cpufreq(void)
+{
+ struct platform_device_info devinfo = { .name = "omap-cpufreq", };
+ platform_device_register_full(&devinfo);
+}
+
static int __init omap2_common_pm_init(void)
{
if (!of_have_populated_dt())
@@ -293,6 +299,9 @@ int __init omap2_common_pm_late_init(void)
/* Smartreflex device init */
omap_devinit_smartreflex();
+
+ /* cpufreq dummy device instantiation */
+ omap_init_cpufreq();
}
#ifdef CONFIG_SUSPEND
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 12c50055838..648867a8caa 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -7,12 +7,6 @@ obj-y += clock.o devices.o generic.o irq.o \
time.o reset.o
obj-$(CONFIG_PM) += pm.o sleep.o standby.o
-ifeq ($(CONFIG_CPU_FREQ),y)
-obj-$(CONFIG_PXA25x) += cpufreq-pxa2xx.o
-obj-$(CONFIG_PXA27x) += cpufreq-pxa2xx.o
-obj-$(CONFIG_PXA3xx) += cpufreq-pxa3xx.o
-endif
-
# Generic drivers that other drivers may depend upon
# SoC-specific code
diff --git a/arch/arm/mach-pxa/include/mach/generic.h b/arch/arm/mach-pxa/include/mach/generic.h
new file mode 100644
index 00000000000..665542e0c9e
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/generic.h
@@ -0,0 +1 @@
+#include "../../generic.h"
diff --git a/arch/arm/mach-s3c24xx/cpufreq.c b/arch/arm/mach-s3c24xx/cpufreq.c
index 5f181e733ee..3c0e78ede0d 100644
--- a/arch/arm/mach-s3c24xx/cpufreq.c
+++ b/arch/arm/mach-s3c24xx/cpufreq.c
@@ -204,7 +204,6 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
freqs.old = cpu_cur.freq;
freqs.new = cpu_new.freq;
- freqs.freqs.cpu = 0;
freqs.freqs.old = cpu_cur.freq.armclk / 1000;
freqs.freqs.new = cpu_new.freq.armclk / 1000;
@@ -218,9 +217,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
s3c_cpufreq_updateclk(clk_pclk, cpu_new.freq.pclk);
/* start the frequency change */
-
- if (policy)
- cpufreq_notify_transition(&freqs.freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_PRECHANGE);
/* If hclk is staying the same, then we do not need to
* re-write the IO or the refresh timings whilst we are changing
@@ -264,8 +261,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
local_irq_restore(flags);
/* notify everyone we've done this */
- if (policy)
- cpufreq_notify_transition(&freqs.freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_POSTCHANGE);
s3c_freq_dbg("%s: finished\n", __func__);
return 0;
diff --git a/arch/arm/mach-s3c64xx/cpuidle.c b/arch/arm/mach-s3c64xx/cpuidle.c
index ead5fab0dbb..3c8ab07c201 100644
--- a/arch/arm/mach-s3c64xx/cpuidle.c
+++ b/arch/arm/mach-s3c64xx/cpuidle.c
@@ -40,12 +40,9 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev,
return index;
}
-static DEFINE_PER_CPU(struct cpuidle_device, s3c64xx_cpuidle_device);
-
static struct cpuidle_driver s3c64xx_cpuidle_driver = {
.name = "s3c64xx_cpuidle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states = {
{
.enter = s3c64xx_enter_idle,
@@ -61,16 +58,6 @@ static struct cpuidle_driver s3c64xx_cpuidle_driver = {
static int __init s3c64xx_init_cpuidle(void)
{
- int ret;
-
- cpuidle_register_driver(&s3c64xx_cpuidle_driver);
-
- ret = cpuidle_register_device(&s3c64xx_cpuidle_device);
- if (ret) {
- pr_err("Failed to register cpuidle device: %d\n", ret);
- return ret;
- }
-
- return 0;
+ return cpuidle_register(&s3c64xx_cpuidle_driver, NULL);
}
device_initcall(s3c64xx_init_cpuidle);
diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig
index ca14dbdcfb2..04f9784ff0e 100644
--- a/arch/arm/mach-sa1100/Kconfig
+++ b/arch/arm/mach-sa1100/Kconfig
@@ -4,7 +4,7 @@ menu "SA11x0 Implementations"
config SA1100_ASSABET
bool "Assabet"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
help
Say Y here if you are using the Intel(R) StrongARM(R) SA-1110
Microprocessor Development Board (also known as the Assabet).
@@ -20,7 +20,7 @@ config ASSABET_NEPONSET
config SA1100_CERF
bool "CerfBoard"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
help
The Intrinsyc CerfBoard is based on the StrongARM 1110 (Discontinued).
More information is available at:
@@ -47,7 +47,7 @@ endchoice
config SA1100_COLLIE
bool "Sharp Zaurus SL5500"
- # FIXME: select CPU_FREQ_SA11x0
+ # FIXME: select ARM_SA11x0_CPUFREQ
select SHARP_LOCOMO
select SHARP_PARAM
select SHARP_SCOOP
@@ -56,7 +56,7 @@ config SA1100_COLLIE
config SA1100_H3100
bool "Compaq iPAQ H3100"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
select HTC_EGPIO
help
Say Y here if you intend to run this kernel on the Compaq iPAQ
@@ -67,7 +67,7 @@ config SA1100_H3100
config SA1100_H3600
bool "Compaq iPAQ H3600/H3700"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
select HTC_EGPIO
help
Say Y here if you intend to run this kernel on the Compaq iPAQ
@@ -78,7 +78,7 @@ config SA1100_H3600
config SA1100_BADGE4
bool "HP Labs BadgePAD 4"
- select CPU_FREQ_SA1100
+ select ARM_SA1100_CPUFREQ
select SA1111
help
Say Y here if you want to build a kernel for the HP Laboratories
@@ -86,7 +86,7 @@ config SA1100_BADGE4
config SA1100_JORNADA720
bool "HP Jornada 720"
- # FIXME: select CPU_FREQ_SA11x0
+ # FIXME: select ARM_SA11x0_CPUFREQ
select SA1111
help
Say Y here if you want to build a kernel for the HP Jornada 720
@@ -105,14 +105,14 @@ config SA1100_JORNADA720_SSP
config SA1100_HACKKIT
bool "HackKit Core CPU Board"
- select CPU_FREQ_SA1100
+ select ARM_SA1100_CPUFREQ
help
Say Y here to support the HackKit Core CPU Board
<http://hackkit.eletztrick.de>;
config SA1100_LART
bool "LART"
- select CPU_FREQ_SA1100
+ select ARM_SA1100_CPUFREQ
help
Say Y here if you are using the Linux Advanced Radio Terminal
(also known as the LART). See <http://www.lartmaker.nl/> for
@@ -120,7 +120,7 @@ config SA1100_LART
config SA1100_NANOENGINE
bool "nanoEngine"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
select PCI
select PCI_NANOENGINE
help
@@ -130,7 +130,7 @@ config SA1100_NANOENGINE
config SA1100_PLEB
bool "PLEB"
- select CPU_FREQ_SA1100
+ select ARM_SA1100_CPUFREQ
help
Say Y here if you are using version 1 of the Portable Linux
Embedded Board (also known as PLEB).
@@ -139,7 +139,7 @@ config SA1100_PLEB
config SA1100_SHANNON
bool "Shannon"
- select CPU_FREQ_SA1100
+ select ARM_SA1100_CPUFREQ
help
The Shannon (also known as a Tuxscreen, and also as a IS2630) was a
limited edition webphone produced by Philips. The Shannon is a SA1100
@@ -148,7 +148,7 @@ config SA1100_SHANNON
config SA1100_SIMPAD
bool "Simpad"
- select CPU_FREQ_SA1110
+ select ARM_SA1110_CPUFREQ
help
The SIEMENS webpad SIMpad is based on the StrongARM 1110. There
are two different versions CL4 and SL4. CL4 has 32MB RAM and 16MB
diff --git a/arch/arm/mach-sa1100/Makefile b/arch/arm/mach-sa1100/Makefile
index 1aed9e70465..2732eef4896 100644
--- a/arch/arm/mach-sa1100/Makefile
+++ b/arch/arm/mach-sa1100/Makefile
@@ -8,9 +8,6 @@ obj-m :=
obj-n :=
obj- :=
-obj-$(CONFIG_CPU_FREQ_SA1100) += cpu-sa1100.o
-obj-$(CONFIG_CPU_FREQ_SA1110) += cpu-sa1110.o
-
# Specific board support
obj-$(CONFIG_SA1100_ASSABET) += assabet.o
obj-$(CONFIG_ASSABET_NEPONSET) += neponset.o
diff --git a/arch/arm/mach-sa1100/include/mach/generic.h b/arch/arm/mach-sa1100/include/mach/generic.h
new file mode 100644
index 00000000000..665542e0c9e
--- /dev/null
+++ b/arch/arm/mach-sa1100/include/mach/generic.h
@@ -0,0 +1 @@
+#include "../../generic.h"
diff --git a/arch/arm/mach-shmobile/cpuidle.c b/arch/arm/mach-shmobile/cpuidle.c
index 9e050268cde..0afeb5c7061 100644
--- a/arch/arm/mach-shmobile/cpuidle.c
+++ b/arch/arm/mach-shmobile/cpuidle.c
@@ -16,39 +16,22 @@
#include <asm/cpuidle.h>
#include <asm/io.h>
-int shmobile_enter_wfi(struct cpuidle_device *dev, struct cpuidle_driver *drv,
- int index)
-{
- cpu_do_idle();
- return 0;
-}
-
-static struct cpuidle_device shmobile_cpuidle_dev;
static struct cpuidle_driver shmobile_cpuidle_default_driver = {
.name = "shmobile_cpuidle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
- .states[0].enter = shmobile_enter_wfi,
.safe_state_index = 0, /* C1 */
.state_count = 1,
};
static struct cpuidle_driver *cpuidle_drv = &shmobile_cpuidle_default_driver;
-void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
+void __init shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
{
cpuidle_drv = drv;
}
-int shmobile_cpuidle_init(void)
+int __init shmobile_cpuidle_init(void)
{
- struct cpuidle_device *dev = &shmobile_cpuidle_dev;
-
- cpuidle_register_driver(cpuidle_drv);
-
- dev->state_count = cpuidle_drv->state_count;
- cpuidle_register_device(dev);
-
- return 0;
+ return cpuidle_register(cpuidle_drv, NULL);
}
diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index e48606d8a2b..362f9b2d2c0 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -13,9 +13,6 @@ extern int shmobile_clk_init(void);
extern void shmobile_handle_irq_intc(struct pt_regs *);
extern struct platform_suspend_ops shmobile_suspend_ops;
struct cpuidle_driver;
-struct cpuidle_device;
-extern int shmobile_enter_wfi(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index);
extern void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv);
extern void sh7372_init_irq(void);
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c
index a0826a48dd0..dec9293bb90 100644
--- a/arch/arm/mach-shmobile/pm-sh7372.c
+++ b/arch/arm/mach-shmobile/pm-sh7372.c
@@ -410,11 +410,9 @@ static int sh7372_enter_a4s(struct cpuidle_device *dev,
static struct cpuidle_driver sh7372_cpuidle_driver = {
.name = "sh7372_cpuidle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.state_count = 5,
.safe_state_index = 0, /* C1 */
.states[0] = ARM_CPUIDLE_WFI_STATE,
- .states[0].enter = shmobile_enter_wfi,
.states[1] = {
.name = "C2",
.desc = "Core Standby Mode",
@@ -450,12 +448,12 @@ static struct cpuidle_driver sh7372_cpuidle_driver = {
},
};
-static void sh7372_cpuidle_init(void)
+static void __init sh7372_cpuidle_init(void)
{
shmobile_cpuidle_set_driver(&sh7372_cpuidle_driver);
}
#else
-static void sh7372_cpuidle_init(void) {}
+static void __init sh7372_cpuidle_init(void) {}
#endif
#ifdef CONFIG_SUSPEND
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index f6b46ae2b7f..09b578f9eb8 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -24,7 +24,6 @@ obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += cpuidle-tegra30.o
endif
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
-obj-$(CONFIG_CPU_FREQ) += cpu-tegra.o
obj-$(CONFIG_TEGRA_PCI) += pcie.o
obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-dt-tegra20.o
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index 0f4e8c483b3..1d1c6023f4a 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -23,39 +23,13 @@
static struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.state_count = 1,
.states = {
[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
},
};
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
int __init tegra114_cpuidle_init(void)
{
- int ret;
- unsigned int cpu;
- struct cpuidle_device *dev;
- struct cpuidle_driver *drv = &tegra_idle_driver;
-
- ret = cpuidle_register_driver(&tegra_idle_driver);
- if (ret) {
- pr_err("CPUidle driver registration failed\n");
- return ret;
- }
-
- for_each_possible_cpu(cpu) {
- dev = &per_cpu(tegra_idle_device, cpu);
- dev->cpu = cpu;
-
- dev->state_count = drv->state_count;
- ret = cpuidle_register_device(dev);
- if (ret) {
- pr_err("CPU%u: CPUidle device registration failed\n",
- cpu);
- return ret;
- }
- }
- return 0;
+ return cpuidle_register(&tegra_idle_driver, NULL);
}
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 825ced4f7a4..590ec25855d 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -43,32 +43,33 @@ static atomic_t abort_barrier;
static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
+#define TEGRA20_MAX_STATES 2
+#else
+#define TEGRA20_MAX_STATES 1
#endif
-static struct cpuidle_state tegra_idle_states[] = {
- [0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
-#ifdef CONFIG_PM_SLEEP
- [1] = {
- .enter = tegra20_idle_lp2_coupled,
- .exit_latency = 5000,
- .target_residency = 10000,
- .power_usage = 0,
- .flags = CPUIDLE_FLAG_TIME_VALID |
- CPUIDLE_FLAG_COUPLED,
- .name = "powered-down",
- .desc = "CPU power gated",
- },
-#endif
-};
-
static struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
+ .states = {
+ ARM_CPUIDLE_WFI_STATE_PWR(600),
+#ifdef CONFIG_PM_SLEEP
+ {
+ .enter = tegra20_idle_lp2_coupled,
+ .exit_latency = 5000,
+ .target_residency = 10000,
+ .power_usage = 0,
+ .flags = CPUIDLE_FLAG_TIME_VALID |
+ CPUIDLE_FLAG_COUPLED,
+ .name = "powered-down",
+ .desc = "CPU power gated",
+ },
+#endif
+ },
+ .state_count = TEGRA20_MAX_STATES,
+ .safe_state_index = 0,
};
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
#ifdef CONFIG_PM_SLEEP
#ifdef CONFIG_SMP
static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
@@ -217,39 +218,8 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
int __init tegra20_cpuidle_init(void)
{
- int ret;
- unsigned int cpu;
- struct cpuidle_device *dev;
- struct cpuidle_driver *drv = &tegra_idle_driver;
-
#ifdef CONFIG_PM_SLEEP
tegra_tear_down_cpu = tegra20_tear_down_cpu;
#endif
-
- drv->state_count = ARRAY_SIZE(tegra_idle_states);
- memcpy(drv->states, tegra_idle_states,
- drv->state_count * sizeof(drv->states[0]));
-
- ret = cpuidle_register_driver(&tegra_idle_driver);
- if (ret) {
- pr_err("CPUidle driver registration failed\n");
- return ret;
- }
-
- for_each_possible_cpu(cpu) {
- dev = &per_cpu(tegra_idle_device, cpu);
- dev->cpu = cpu;
-#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
- dev->coupled_cpus = *cpu_possible_mask;
-#endif
-
- dev->state_count = drv->state_count;
- ret = cpuidle_register_device(dev);
- if (ret) {
- pr_err("CPU%u: CPUidle device registration failed\n",
- cpu);
- return ret;
- }
- }
- return 0;
+ return cpuidle_register(&tegra_idle_driver, cpu_possible_mask);
}
diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c
index 8b50cf4ddd6..36dc2befa9d 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra30.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra30.c
@@ -43,7 +43,6 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev,
static struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
#ifdef CONFIG_PM_SLEEP
.state_count = 2,
#else
@@ -65,8 +64,6 @@ static struct cpuidle_driver tegra_idle_driver = {
},
};
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
#ifdef CONFIG_PM_SLEEP
static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
@@ -157,32 +154,8 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev,
int __init tegra30_cpuidle_init(void)
{
- int ret;
- unsigned int cpu;
- struct cpuidle_device *dev;
- struct cpuidle_driver *drv = &tegra_idle_driver;
-
#ifdef CONFIG_PM_SLEEP
tegra_tear_down_cpu = tegra30_tear_down_cpu;
#endif
-
- ret = cpuidle_register_driver(&tegra_idle_driver);
- if (ret) {
- pr_err("CPUidle driver registration failed\n");
- return ret;
- }
-
- for_each_possible_cpu(cpu) {
- dev = &per_cpu(tegra_idle_device, cpu);
- dev->cpu = cpu;
-
- dev->state_count = drv->state_count;
- ret = cpuidle_register_device(dev);
- if (ret) {
- pr_err("CPU%u: CPUidle device registration failed\n",
- cpu);
- return ret;
- }
- }
- return 0;
+ return cpuidle_register(&tegra_idle_driver, NULL);
}
diff --git a/arch/arm/mach-ux500/cpuidle.c b/arch/arm/mach-ux500/cpuidle.c
index ce9149302cc..488e07472d9 100644
--- a/arch/arm/mach-ux500/cpuidle.c
+++ b/arch/arm/mach-ux500/cpuidle.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/cpuidle.h>
-#include <linux/clockchips.h>
#include <linux/spinlock.h>
#include <linux/atomic.h>
#include <linux/smp.h>
@@ -22,7 +21,6 @@
static atomic_t master = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(master_lock);
-static DEFINE_PER_CPU(struct cpuidle_device, ux500_cpuidle_device);
static inline int ux500_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
@@ -30,8 +28,6 @@ static inline int ux500_enter_idle(struct cpuidle_device *dev,
int this_cpu = smp_processor_id();
bool recouple = false;
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &this_cpu);
-
if (atomic_inc_return(&master) == num_online_cpus()) {
/* With this lock, we prevent the other cpu to exit and enter
@@ -91,22 +87,20 @@ out:
spin_unlock(&master_lock);
}
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &this_cpu);
-
return index;
}
static struct cpuidle_driver ux500_idle_driver = {
.name = "ux500_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states = {
ARM_CPUIDLE_WFI_STATE,
{
.enter = ux500_enter_idle,
.exit_latency = 70,
.target_residency = 260,
- .flags = CPUIDLE_FLAG_TIME_VALID,
+ .flags = CPUIDLE_FLAG_TIME_VALID |
+ CPUIDLE_FLAG_TIMER_STOP,
.name = "ApIdle",
.desc = "ARM Retention",
},
@@ -115,59 +109,13 @@ static struct cpuidle_driver ux500_idle_driver = {
.state_count = 2,
};
-/*
- * For each cpu, setup the broadcast timer because we will
- * need to migrate the timers for the states >= ApIdle.
- */
-static void ux500_setup_broadcast_timer(void *arg)
-{
- int cpu = smp_processor_id();
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu);
-}
-
int __init ux500_idle_init(void)
{
- int ret, cpu;
- struct cpuidle_device *device;
-
/* Configure wake up reasons */
prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) |
PRCMU_WAKEUP(ABB));
- /*
- * Configure the timer broadcast for each cpu, that must
- * be done from the cpu context, so we use a smp cross
- * call with 'on_each_cpu'.
- */
- on_each_cpu(ux500_setup_broadcast_timer, NULL, 1);
-
- ret = cpuidle_register_driver(&ux500_idle_driver);
- if (ret) {
- printk(KERN_ERR "failed to register ux500 idle driver\n");
- return ret;
- }
-
- for_each_online_cpu(cpu) {
- device = &per_cpu(ux500_cpuidle_device, cpu);
- device->cpu = cpu;
- ret = cpuidle_register_device(device);
- if (ret) {
- printk(KERN_ERR "Failed to register cpuidle "
- "device for cpu%d\n", cpu);
- goto out_unregister;
- }
- }
-out:
- return ret;
-
-out_unregister:
- for_each_online_cpu(cpu) {
- device = &per_cpu(ux500_cpuidle_device, cpu);
- cpuidle_unregister_device(device);
- }
-
- cpuidle_unregister_driver(&ux500_idle_driver);
- goto out;
+ return cpuidle_register(&ux500_idle_driver, NULL);
}
device_initcall(ux500_idle_init);
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index c1a868d398b..22c40308360 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -250,20 +250,7 @@ config ARCH_SUSPEND_POSSIBLE
def_bool y
menu "CPU Frequency scaling"
-
source "drivers/cpufreq/Kconfig"
-
-config CPU_FREQ_AT32AP
- bool "CPU frequency driver for AT32AP"
- depends on CPU_FREQ && PLATFORM_AT32AP
- default n
- help
- This enables the CPU frequency driver for AT32AP processors.
-
- For details, take a look in <file:Documentation/cpu-freq>.
-
- If in doubt, say N.
-
endmenu
endmenu
diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig
index f4025db184f..d5aff36ade9 100644
--- a/arch/avr32/configs/atngw100_defconfig
+++ b/arch/avr32/configs/atngw100_defconfig
@@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atngw100_evklcd100_defconfig b/arch/avr32/configs/atngw100_evklcd100_defconfig
index c76a49b9e9d..4abcf435d59 100644
--- a/arch/avr32/configs/atngw100_evklcd100_defconfig
+++ b/arch/avr32/configs/atngw100_evklcd100_defconfig
@@ -28,7 +28,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atngw100_evklcd101_defconfig b/arch/avr32/configs/atngw100_evklcd101_defconfig
index 2d8ab089a64..18f3fa0470f 100644
--- a/arch/avr32/configs/atngw100_evklcd101_defconfig
+++ b/arch/avr32/configs/atngw100_evklcd101_defconfig
@@ -27,7 +27,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atngw100_mrmt_defconfig b/arch/avr32/configs/atngw100_mrmt_defconfig
index b189e0cab04..06e389cfcd1 100644
--- a/arch/avr32/configs/atngw100_mrmt_defconfig
+++ b/arch/avr32/configs/atngw100_mrmt_defconfig
@@ -23,7 +23,7 @@ CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/avr32/configs/atngw100mkii_defconfig b/arch/avr32/configs/atngw100mkii_defconfig
index 2e4de42a53c..2518a1368d7 100644
--- a/arch/avr32/configs/atngw100mkii_defconfig
+++ b/arch/avr32/configs/atngw100mkii_defconfig
@@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig
index fad3cd22dfd..245ef6bd0fa 100644
--- a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig
+++ b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig
@@ -29,7 +29,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig
index 29986230aaa..fa6cbac6e41 100644
--- a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig
+++ b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig
@@ -28,7 +28,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
index a582465e1ce..bbd5131021a 100644
--- a/arch/avr32/configs/atstk1002_defconfig
+++ b/arch/avr32/configs/atstk1002_defconfig
@@ -25,7 +25,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atstk1003_defconfig b/arch/avr32/configs/atstk1003_defconfig
index 57a79df2ce5..c1cd726f901 100644
--- a/arch/avr32/configs/atstk1003_defconfig
+++ b/arch/avr32/configs/atstk1003_defconfig
@@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atstk1004_defconfig b/arch/avr32/configs/atstk1004_defconfig
index 1a49bd8c634..754ae56b276 100644
--- a/arch/avr32/configs/atstk1004_defconfig
+++ b/arch/avr32/configs/atstk1004_defconfig
@@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/atstk1006_defconfig b/arch/avr32/configs/atstk1006_defconfig
index 206a1b67f76..58589d8cc0a 100644
--- a/arch/avr32/configs/atstk1006_defconfig
+++ b/arch/avr32/configs/atstk1006_defconfig
@@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_NET=y
CONFIG_PACKET=y
diff --git a/arch/avr32/configs/favr-32_defconfig b/arch/avr32/configs/favr-32_defconfig
index 0421498d666..57788a42ff8 100644
--- a/arch/avr32/configs/favr-32_defconfig
+++ b/arch/avr32/configs/favr-32_defconfig
@@ -27,7 +27,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/avr32/configs/hammerhead_defconfig b/arch/avr32/configs/hammerhead_defconfig
index 82f24eb251b..ba7c31e269c 100644
--- a/arch/avr32/configs/hammerhead_defconfig
+++ b/arch/avr32/configs/hammerhead_defconfig
@@ -31,7 +31,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/avr32/configs/mimc200_defconfig b/arch/avr32/configs/mimc200_defconfig
index 1bee51f2215..0a8bfdc420e 100644
--- a/arch/avr32/configs/mimc200_defconfig
+++ b/arch/avr32/configs/mimc200_defconfig
@@ -24,7 +24,7 @@ CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_AT32AP=y
+CONFIG_AVR32_AT32AP_CPUFREQ=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile
index 514c9a9b009..fc09ec4bc72 100644
--- a/arch/avr32/mach-at32ap/Makefile
+++ b/arch/avr32/mach-at32ap/Makefile
@@ -1,7 +1,6 @@
obj-y += pdc.o clock.o intc.o extint.o pio.o hsmc.o
obj-y += hmatrix.o
obj-$(CONFIG_CPU_AT32AP700X) += at32ap700x.o pm-at32ap700x.o
-obj-$(CONFIG_CPU_FREQ_AT32AP) += cpufreq.o
obj-$(CONFIG_PM) += pm.o
ifeq ($(CONFIG_PM_DEBUG),y)
diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile
index 75f0ba29ebb..675466d490d 100644
--- a/arch/blackfin/mach-common/Makefile
+++ b/arch/blackfin/mach-common/Makefile
@@ -10,7 +10,6 @@ obj-$(CONFIG_PM) += pm.o
ifneq ($(CONFIG_BF60x),y)
obj-$(CONFIG_PM) += dpmc_modes.o
endif
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_CPU_VOLTAGE) += dpmc.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_BFIN_KERNEL_CLOCK) += clocks-init.o
diff --git a/arch/cris/arch-v32/mach-a3/Makefile b/arch/cris/arch-v32/mach-a3/Makefile
index d366e089198..18a227196a4 100644
--- a/arch/cris/arch-v32/mach-a3/Makefile
+++ b/arch/cris/arch-v32/mach-a3/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/cris/arch-v32/mach-fs/Makefile b/arch/cris/arch-v32/mach-fs/Makefile
index d366e089198..18a227196a4 100644
--- a/arch/cris/arch-v32/mach-fs/Makefile
+++ b/arch/cris/arch-v32/mach-fs/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index e7e55a00f94..e725ea01569 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -591,9 +591,9 @@ source "kernel/power/Kconfig"
source "drivers/acpi/Kconfig"
if PM
-
-source "arch/ia64/kernel/cpufreq/Kconfig"
-
+menu "CPU Frequency scaling"
+source "drivers/cpufreq/Kconfig"
+endmenu
endif
endmenu
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index d959c84904b..20678a9ed11 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -23,7 +23,6 @@ obj-$(CONFIG_SMP) += smp.o smpboot.o
obj-$(CONFIG_NUMA) += numa.o
obj-$(CONFIG_PERFMON) += perfmon_default_smpl.o
obj-$(CONFIG_IA64_CYCLONE) += cyclone.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o
obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
diff --git a/arch/ia64/kernel/cpufreq/Kconfig b/arch/ia64/kernel/cpufreq/Kconfig
deleted file mode 100644
index 2d9d5279b98..00000000000
--- a/arch/ia64/kernel/cpufreq/Kconfig
+++ /dev/null
@@ -1,29 +0,0 @@
-
-#
-# CPU Frequency scaling
-#
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-if CPU_FREQ
-
-comment "CPUFreq processor drivers"
-
-config IA64_ACPI_CPUFREQ
- tristate "ACPI Processor P-States driver"
- select CPU_FREQ_TABLE
- depends on ACPI_PROCESSOR
- help
- This driver adds a CPUFreq driver which utilizes the ACPI
- Processor Performance States.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- If in doubt, say N.
-
-endif # CPU_FREQ
-
-endmenu
-
diff --git a/arch/ia64/kernel/cpufreq/Makefile b/arch/ia64/kernel/cpufreq/Makefile
deleted file mode 100644
index 4838f2a57c7..00000000000
--- a/arch/ia64/kernel/cpufreq/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_IA64_ACPI_CPUFREQ) += acpi-cpufreq.o
-
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3a7b3954ce1..007a917a980 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2541,7 +2541,14 @@ source "kernel/power/Kconfig"
endmenu
-source "arch/mips/kernel/cpufreq/Kconfig"
+config MIPS_EXTERNAL_TIMER
+ bool
+
+if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
+menu "CPU Power Management"
+source "drivers/cpufreq/Kconfig"
+endmenu
+endif
source "net/Kconfig"
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index de75fb50562..520a908d45d 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -92,8 +92,6 @@ CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/n
obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT) += 8250-platform.o
-obj-$(CONFIG_MIPS_CPUFREQ) += cpufreq/
-
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
obj-$(CONFIG_HW_PERF_EVENTS) += perf_event_mipsxx.o
diff --git a/arch/mips/kernel/cpufreq/Kconfig b/arch/mips/kernel/cpufreq/Kconfig
deleted file mode 100644
index 58c601eee6f..00000000000
--- a/arch/mips/kernel/cpufreq/Kconfig
+++ /dev/null
@@ -1,41 +0,0 @@
-#
-# CPU Frequency scaling
-#
-
-config MIPS_EXTERNAL_TIMER
- bool
-
-config MIPS_CPUFREQ
- bool
- default y
- depends on CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
-
-if MIPS_CPUFREQ
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-if CPU_FREQ
-
-comment "CPUFreq processor drivers"
-
-config LOONGSON2_CPUFREQ
- tristate "Loongson2 CPUFreq Driver"
- select CPU_FREQ_TABLE
- depends on MIPS_CPUFREQ
- help
- This option adds a CPUFreq driver for loongson processors which
- support software configurable cpu frequency.
-
- Loongson2F and it's successors support this feature.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- If in doubt, say N.
-
-endif # CPU_FREQ
-
-endmenu
-
-endif # MIPS_CPUFREQ
diff --git a/arch/mips/kernel/cpufreq/Makefile b/arch/mips/kernel/cpufreq/Makefile
deleted file mode 100644
index 05a5715ee38..00000000000
--- a/arch/mips/kernel/cpufreq/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the Linux/MIPS cpufreq.
-#
-
-obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 53aaefeb338..9978f594cac 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -113,34 +113,10 @@ config CBE_THERM
default m
depends on CBE_RAS && SPU_BASE
-config CBE_CPUFREQ
- tristate "CBE frequency scaling"
- depends on CBE_RAS && CPU_FREQ
- default m
- help
- This adds the cpufreq driver for Cell BE processors.
- For details, take a look at <file:Documentation/cpu-freq/>.
- If you don't have such processor, say N
-
-config CBE_CPUFREQ_PMI_ENABLE
- bool "CBE frequency scaling using PMI interface"
- depends on CBE_CPUFREQ
- default n
- help
- Select this, if you want to use the PMI interface
- to switch frequencies. Using PMI, the
- processor will not only be able to run at lower speed,
- but also at lower core voltage.
-
-config CBE_CPUFREQ_PMI
- tristate
- depends on CBE_CPUFREQ_PMI_ENABLE
- default CBE_CPUFREQ
-
config PPC_PMI
tristate
default y
- depends on CBE_CPUFREQ_PMI || PPC_IBM_CELL_POWERBUTTON
+ depends on CPU_FREQ_CBE_PMI || PPC_IBM_CELL_POWERBUTTON
help
PMI (Platform Management Interrupt) is a way to
communicate with the BMC (Baseboard Management Controller).
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index a4a89350bcf..fe053e7c73e 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -5,9 +5,6 @@ obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \
obj-$(CONFIG_CBE_RAS) += ras.o
obj-$(CONFIG_CBE_THERM) += cbe_thermal.o
-obj-$(CONFIG_CBE_CPUFREQ_PMI) += cbe_cpufreq_pmi.o
-obj-$(CONFIG_CBE_CPUFREQ) += cbe-cpufreq.o
-cbe-cpufreq-y += cbe_cpufreq_pervasive.o cbe_cpufreq.o
obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR) += cpufreq_spudemand.o
obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o
diff --git a/arch/powerpc/platforms/pasemi/cpufreq.c b/arch/powerpc/platforms/pasemi/cpufreq.c
index 890f30e70f9..be1e7958909 100644
--- a/arch/powerpc/platforms/pasemi/cpufreq.c
+++ b/arch/powerpc/platforms/pasemi/cpufreq.c
@@ -273,10 +273,9 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = pas_freqs[pas_astate_new].frequency;
- freqs.cpu = policy->cpu;
mutex_lock(&pas_switch_mutex);
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n",
policy->cpu,
@@ -288,7 +287,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy,
for_each_online_cpu(i)
set_astate(i, pas_astate_new);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&pas_switch_mutex);
ppc_proc_freq = freqs.new * 1000ul;
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 311b804353b..3104fad8248 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -335,7 +335,8 @@ static int pmu_set_cpu_speed(int low_speed)
return 0;
}
-static int do_set_cpu_speed(int speed_mode, int notify)
+static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode,
+ int notify)
{
struct cpufreq_freqs freqs;
unsigned long l3cr;
@@ -343,13 +344,12 @@ static int do_set_cpu_speed(int speed_mode, int notify)
freqs.old = cur_freq;
freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
- freqs.cpu = smp_processor_id();
if (freqs.old == freqs.new)
return 0;
if (notify)
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (speed_mode == CPUFREQ_LOW &&
cpu_has_feature(CPU_FTR_L3CR)) {
l3cr = _get_L3CR();
@@ -366,7 +366,7 @@ static int do_set_cpu_speed(int speed_mode, int notify)
_set_L3CR(prev_l3cr);
}
if (notify)
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
return 0;
@@ -393,7 +393,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
- rc = do_set_cpu_speed(newstate, 1);
+ rc = do_set_cpu_speed(policy, newstate, 1);
ppc_proc_freq = cur_freq * 1000ul;
return rc;
@@ -442,7 +442,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy)
no_schedule = 1;
sleep_freq = cur_freq;
if (cur_freq == low_freq && !is_pmu_based)
- do_set_cpu_speed(CPUFREQ_HIGH, 0);
+ do_set_cpu_speed(policy, CPUFREQ_HIGH, 0);
return 0;
}
@@ -458,7 +458,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
* is that we force a switch to whatever it was, which is
* probably high speed due to our suspend() routine
*/
- do_set_cpu_speed(sleep_freq == low_freq ?
+ do_set_cpu_speed(policy, sleep_freq == low_freq ?
CPUFREQ_LOW : CPUFREQ_HIGH, 0);
ppc_proc_freq = cur_freq * 1000ul;
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index 9650c6029c8..7ba423431cf 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -339,11 +339,10 @@ static int g5_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
freqs.new = g5_cpu_freqs[newstate].frequency;
- freqs.cpu = 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rc = g5_switch_freq(newstate);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&g5_switch_mutex);
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c
index 4d806b41960..4644efa0694 100644
--- a/arch/powerpc/platforms/pseries/processor_idle.c
+++ b/arch/powerpc/platforms/pseries/processor_idle.c
@@ -23,8 +23,8 @@
#include "pseries.h"
struct cpuidle_driver pseries_idle_driver = {
- .name = "pseries_idle",
- .owner = THIS_MODULE,
+ .name = "pseries_idle",
+ .owner = THIS_MODULE,
};
#define MAX_IDLE_STATE_COUNT 2
@@ -33,10 +33,8 @@ static int max_idle_state = MAX_IDLE_STATE_COUNT - 1;
static struct cpuidle_device __percpu *pseries_cpuidle_devices;
static struct cpuidle_state *cpuidle_state_table;
-static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before)
+static inline void idle_loop_prolog(unsigned long *in_purr)
{
-
- *kt_before = ktime_get();
*in_purr = mfspr(SPRN_PURR);
/*
* Indicate to the HV that we are idle. Now would be
@@ -45,12 +43,10 @@ static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before)
get_lppaca()->idle = 1;
}
-static inline s64 idle_loop_epilog(unsigned long in_purr, ktime_t kt_before)
+static inline void idle_loop_epilog(unsigned long in_purr)
{
get_lppaca()->wait_state_cycles += mfspr(SPRN_PURR) - in_purr;
get_lppaca()->idle = 0;
-
- return ktime_to_us(ktime_sub(ktime_get(), kt_before));
}
static int snooze_loop(struct cpuidle_device *dev,
@@ -58,10 +54,9 @@ static int snooze_loop(struct cpuidle_device *dev,
int index)
{
unsigned long in_purr;
- ktime_t kt_before;
int cpu = dev->cpu;
- idle_loop_prolog(&in_purr, &kt_before);
+ idle_loop_prolog(&in_purr);
local_irq_enable();
set_thread_flag(TIF_POLLING_NRFLAG);
@@ -75,8 +70,8 @@ static int snooze_loop(struct cpuidle_device *dev,
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb();
- dev->last_residency =
- (int)idle_loop_epilog(in_purr, kt_before);
+ idle_loop_epilog(in_purr);
+
return index;
}
@@ -102,9 +97,8 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
int index)
{
unsigned long in_purr;
- ktime_t kt_before;
- idle_loop_prolog(&in_purr, &kt_before);
+ idle_loop_prolog(&in_purr);
get_lppaca()->donate_dedicated_cpu = 1;
ppc64_runlatch_off();
@@ -112,8 +106,9 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
check_and_cede_processor();
get_lppaca()->donate_dedicated_cpu = 0;
- dev->last_residency =
- (int)idle_loop_epilog(in_purr, kt_before);
+
+ idle_loop_epilog(in_purr);
+
return index;
}
@@ -122,9 +117,8 @@ static int shared_cede_loop(struct cpuidle_device *dev,
int index)
{
unsigned long in_purr;
- ktime_t kt_before;
- idle_loop_prolog(&in_purr, &kt_before);
+ idle_loop_prolog(&in_purr);
/*
* Yield the processor to the hypervisor. We return if
@@ -135,8 +129,8 @@ static int shared_cede_loop(struct cpuidle_device *dev,
*/
check_and_cede_processor();
- dev->last_residency =
- (int)idle_loop_epilog(in_purr, kt_before);
+ idle_loop_epilog(in_purr);
+
return index;
}
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 1ea597c6497..78d8ace5727 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -622,25 +622,7 @@ config SH_CLK_CPG_LEGACY
endmenu
menu "CPU Frequency scaling"
-
source "drivers/cpufreq/Kconfig"
-
-config SH_CPU_FREQ
- tristate "SuperH CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the cpufreq driver for SuperH. Any CPU that supports
- clock rate rounding through the clock framework can use this
- driver. While it will make the kernel slightly larger, this is
- harmless for CPUs that don't support rate rounding. The driver
- will also generate a notice in the boot log before disabling
- itself if the CPU in question is not capable of rate rounding.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If unsure, say N.
-
endmenu
source "arch/sh/drivers/Kconfig"
diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index e14567a7e9a..70ae0b2888a 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -14,9 +14,9 @@ struct swsusp_arch_regs {
void sh_mobile_call_standby(unsigned long mode);
#ifdef CONFIG_CPU_IDLE
-void sh_mobile_setup_cpuidle(void);
+int sh_mobile_setup_cpuidle(void);
#else
-static inline void sh_mobile_setup_cpuidle(void) {}
+static inline int sh_mobile_setup_cpuidle(void) { return 0; }
#endif
/* notifier chains for pre/post sleep hooks */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index f259b37874e..261c8bfd75c 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -31,7 +31,6 @@ obj-$(CONFIG_VSYSCALL) += vsyscall/
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o
obj-$(CONFIG_KGDB) += kgdb.o
-obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o
obj-$(CONFIG_MODULES) += sh_ksyms_$(BITS).o module.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index 1ddc876d3b2..d3062259211 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -51,70 +51,53 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
return k;
}
-static struct cpuidle_device cpuidle_dev;
static struct cpuidle_driver cpuidle_driver = {
- .name = "sh_idle",
- .owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
+ .name = "sh_idle",
+ .owner = THIS_MODULE,
+ .states = {
+ {
+ .exit_latency = 1,
+ .target_residency = 1 * 2,
+ .power_usage = 3,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C1",
+ .desc = "SuperH Sleep Mode",
+ },
+ {
+ .exit_latency = 100,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C2",
+ .desc = "SuperH Sleep Mode [SF]",
+ .disabled = true,
+ },
+ {
+ .exit_latency = 2300,
+ .target_residency = 1 * 2,
+ .power_usage = 1,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .enter = cpuidle_sleep_enter,
+ .name = "C3",
+ .desc = "SuperH Mobile Standby Mode [SF]",
+ .disabled = true,
+ },
+ },
+ .safe_state_index = 0,
+ .state_count = 3,
};
-void sh_mobile_setup_cpuidle(void)
+int __init sh_mobile_setup_cpuidle(void)
{
- struct cpuidle_device *dev = &cpuidle_dev;
- struct cpuidle_driver *drv = &cpuidle_driver;
- struct cpuidle_state *state;
- int i;
+ int ret;
+ if (sh_mobile_sleep_supported & SUSP_SH_SF)
+ cpuidle_driver.states[1].disabled = false;
- for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
- drv->states[i].name[0] = '\0';
- drv->states[i].desc[0] = '\0';
- }
+ if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
+ cpuidle_driver.states[2].disabled = false;
- i = CPUIDLE_DRIVER_STATE_START;
-
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
- strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
- state->exit_latency = 1;
- state->target_residency = 1 * 2;
- state->power_usage = 3;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
-
- drv->safe_state_index = i-1;
-
- if (sh_mobile_sleep_supported & SUSP_SH_SF) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
- strncpy(state->desc, "SuperH Sleep Mode [SF]",
- CPUIDLE_DESC_LEN);
- state->exit_latency = 100;
- state->target_residency = 1 * 2;
- state->power_usage = 1;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
- }
-
- if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
- state = &drv->states[i++];
- snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
- strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
- CPUIDLE_DESC_LEN);
- state->exit_latency = 2300;
- state->target_residency = 1 * 2;
- state->power_usage = 1;
- state->flags = 0;
- state->flags |= CPUIDLE_FLAG_TIME_VALID;
- state->enter = cpuidle_sleep_enter;
- }
-
- drv->state_count = i;
- dev->state_count = i;
-
- cpuidle_register_driver(&cpuidle_driver);
-
- cpuidle_register_device(dev);
+ return cpuidle_register(&cpuidle_driver);
}
diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c
index 08d27fac8d0..ac37b7234f8 100644
--- a/arch/sh/kernel/cpu/shmobile/pm.c
+++ b/arch/sh/kernel/cpu/shmobile/pm.c
@@ -150,8 +150,7 @@ static const struct platform_suspend_ops sh_pm_ops = {
static int __init sh_pm_init(void)
{
suspend_set_ops(&sh_pm_ops);
- sh_mobile_setup_cpuidle();
- return 0;
+ return sh_mobile_setup_cpuidle();
}
late_initcall(sh_pm_init);
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 66dc562950a..e5641157464 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -254,29 +254,6 @@ config HOTPLUG_CPU
if SPARC64
source "drivers/cpufreq/Kconfig"
-
-config US3_FREQ
- tristate "UltraSPARC-III CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the CPUFreq driver for UltraSPARC-III processors.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If in doubt, say N.
-
-config US2E_FREQ
- tristate "UltraSPARC-IIe CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the CPUFreq driver for UltraSPARC-IIe processors.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If in doubt, say N.
-
endif
config US3_MC
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 6cf591b7e1c..5276fd4e9d0 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -102,9 +102,6 @@ obj-$(CONFIG_PCI_MSI) += pci_msi.o
obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o
-# sparc64 cpufreq
-obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o
-obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o
obj-$(CONFIG_US3_MC) += chmc.o
obj-$(CONFIG_KPROBES) += kprobes.o
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile
index fa497e0efe5..607a72f2ae3 100644
--- a/arch/unicore32/kernel/Makefile
+++ b/arch/unicore32/kernel/Makefile
@@ -9,7 +9,6 @@ obj-y += setup.o signal.o sys.o stacktrace.o traps.o
obj-$(CONFIG_MODULES) += ksyms.o module.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_CPU_FREQ) += cpu-ucv2.o
obj-$(CONFIG_UNICORE_FPU_F64) += fpu-ucf64.o
# obj-y for architecture PKUnity v3
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 398f7cb1353..8010ebc5705 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -185,6 +185,7 @@
#define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */
#define X86_FEATURE_DTHERM (7*32+ 7) /* Digital Thermal Sensor */
#define X86_FEATURE_HW_PSTATE (7*32+ 8) /* AMD HW-PState */
+#define X86_FEATURE_PROC_FEEDBACK (7*32+ 9) /* AMD ProcFeedbackInterface */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 66b5faffe14..53a4e274484 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -373,7 +373,6 @@ static int apm_cpu_idle(struct cpuidle_device *dev,
static struct cpuidle_driver apm_idle_driver = {
.name = "apm_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
.states = {
{ /* entry 0 is for polling */ },
{ /* entry 1 is for APM idle */
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index ee8e9abc859..d92b5dad15d 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -39,8 +39,9 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
{ X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 },
{ X86_FEATURE_EPB, CR_ECX, 3, 0x00000006, 0 },
{ X86_FEATURE_XSAVEOPT, CR_EAX, 0, 0x0000000d, 1 },
- { X86_FEATURE_CPB, CR_EDX, 9, 0x80000007, 0 },
{ X86_FEATURE_HW_PSTATE, CR_EDX, 7, 0x80000007, 0 },
+ { X86_FEATURE_CPB, CR_EDX, 9, 0x80000007, 0 },
+ { X86_FEATURE_PROC_FEEDBACK, CR_EDX,11, 0x80000007, 0 },
{ X86_FEATURE_NPT, CR_EDX, 0, 0x8000000a, 0 },
{ X86_FEATURE_LBRV, CR_EDX, 1, 0x8000000a, 0 },
{ X86_FEATURE_SVML, CR_EDX, 2, 0x8000000a, 0 },
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 4bf68c8d479..100bd724f64 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -298,14 +298,6 @@ config ACPI_DEBUG
Documentation/kernel-parameters.txt to control the type and
amount of debug output.
-config ACPI_DEBUG_FUNC_TRACE
- bool "Additionally enable ACPI function tracing"
- default n
- depends on ACPI_DEBUG
- help
- ACPI Debug Statements slow down ACPI processing. Function trace
- is about half of the penalty and is rarely useful.
-
config ACPI_PCI_SLOT
bool "PCI slot detection driver"
depends on SYSFS
@@ -334,7 +326,7 @@ config X86_PM_TIMER
config ACPI_CONTAINER
bool "Container and Module Devices"
- default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
+ default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU)
help
This driver supports ACPI Container and Module devices (IDs
ACPI0004, PNP0A05, and PNP0A06).
@@ -345,9 +337,8 @@ config ACPI_CONTAINER
the module will be called container.
config ACPI_HOTPLUG_MEMORY
- tristate "Memory Hotplug"
+ bool "Memory Hotplug"
depends on MEMORY_HOTPLUG
- default n
help
This driver supports ACPI memory hotplug. The driver
fields notifications on ACPI memory devices (PNP0C80),
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 474fcfeba66..ecb743bf05a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -39,6 +39,7 @@ acpi-y += ec.o
acpi-$(CONFIG_ACPI_DOCK) += dock.o
acpi-y += pci_root.o pci_link.o pci_irq.o
acpi-y += csrt.o
+acpi-$(CONFIG_X86_INTEL_LPSS) += acpi_lpss.o
acpi-y += acpi_platform.o
acpi-y += power.o
acpi-y += event.o
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
new file mode 100644
index 00000000000..b1c95422ce7
--- /dev/null
+++ b/drivers/acpi/acpi_lpss.c
@@ -0,0 +1,292 @@
+/*
+ * ACPI support for Intel Lynxpoint LPSS.
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
+ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/clk-lpss.h>
+#include <linux/pm_runtime.h>
+
+#include "internal.h"
+
+ACPI_MODULE_NAME("acpi_lpss");
+
+#define LPSS_CLK_SIZE 0x04
+#define LPSS_LTR_SIZE 0x18
+
+/* Offsets relative to LPSS_PRIVATE_OFFSET */
+#define LPSS_GENERAL 0x08
+#define LPSS_GENERAL_LTR_MODE_SW BIT(2)
+#define LPSS_SW_LTR 0x10
+#define LPSS_AUTO_LTR 0x14
+
+struct lpss_device_desc {
+ bool clk_required;
+ const char *clk_parent;
+ bool ltr_required;
+ unsigned int prv_offset;
+};
+
+struct lpss_private_data {
+ void __iomem *mmio_base;
+ resource_size_t mmio_size;
+ struct clk *clk;
+ const struct lpss_device_desc *dev_desc;
+};
+
+static struct lpss_device_desc lpt_dev_desc = {
+ .clk_required = true,
+ .clk_parent = "lpss_clk",
+ .prv_offset = 0x800,
+ .ltr_required = true,
+};
+
+static struct lpss_device_desc lpt_sdio_dev_desc = {
+ .prv_offset = 0x1000,
+ .ltr_required = true,
+};
+
+static const struct acpi_device_id acpi_lpss_device_ids[] = {
+ /* Lynxpoint LPSS devices */
+ { "INT33C0", (unsigned long)&lpt_dev_desc },
+ { "INT33C1", (unsigned long)&lpt_dev_desc },
+ { "INT33C2", (unsigned long)&lpt_dev_desc },
+ { "INT33C3", (unsigned long)&lpt_dev_desc },
+ { "INT33C4", (unsigned long)&lpt_dev_desc },
+ { "INT33C5", (unsigned long)&lpt_dev_desc },
+ { "INT33C6", (unsigned long)&lpt_sdio_dev_desc },
+ { "INT33C7", },
+
+ { }
+};
+
+static int is_memory(struct acpi_resource *res, void *not_used)
+{
+ struct resource r;
+ return !acpi_dev_resource_memory(res, &r);
+}
+
+/* LPSS main clock device. */
+static struct platform_device *lpss_clk_dev;
+
+static inline void lpt_register_clock_device(void)
+{
+ lpss_clk_dev = platform_device_register_simple("clk-lpt", -1, NULL, 0);
+}
+
+static int register_device_clock(struct acpi_device *adev,
+ struct lpss_private_data *pdata)
+{
+ const struct lpss_device_desc *dev_desc = pdata->dev_desc;
+
+ if (!lpss_clk_dev)
+ lpt_register_clock_device();
+
+ if (!dev_desc->clk_parent || !pdata->mmio_base
+ || pdata->mmio_size < dev_desc->prv_offset + LPSS_CLK_SIZE)
+ return -ENODATA;
+
+ pdata->clk = clk_register_gate(NULL, dev_name(&adev->dev),
+ dev_desc->clk_parent, 0,
+ pdata->mmio_base + dev_desc->prv_offset,
+ 0, 0, NULL);
+ if (IS_ERR(pdata->clk))
+ return PTR_ERR(pdata->clk);
+
+ clk_register_clkdev(pdata->clk, NULL, dev_name(&adev->dev));
+ return 0;
+}
+
+static int acpi_lpss_create_device(struct acpi_device *adev,
+ const struct acpi_device_id *id)
+{
+ struct lpss_device_desc *dev_desc;
+ struct lpss_private_data *pdata;
+ struct resource_list_entry *rentry;
+ struct list_head resource_list;
+ int ret;
+
+ dev_desc = (struct lpss_device_desc *)id->driver_data;
+ if (!dev_desc)
+ return acpi_create_platform_device(adev, id);
+
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&resource_list);
+ ret = acpi_dev_get_resources(adev, &resource_list, is_memory, NULL);
+ if (ret < 0)
+ goto err_out;
+
+ list_for_each_entry(rentry, &resource_list, node)
+ if (resource_type(&rentry->res) == IORESOURCE_MEM) {
+ pdata->mmio_size = resource_size(&rentry->res);
+ pdata->mmio_base = ioremap(rentry->res.start,
+ pdata->mmio_size);
+ pdata->dev_desc = dev_desc;
+ break;
+ }
+
+ acpi_dev_free_resource_list(&resource_list);
+
+ if (dev_desc->clk_required) {
+ ret = register_device_clock(adev, pdata);
+ if (ret) {
+ /*
+ * Skip the device, but don't terminate the namespace
+ * scan.
+ */
+ kfree(pdata);
+ return 0;
+ }
+ }
+
+ adev->driver_data = pdata;
+ ret = acpi_create_platform_device(adev, id);
+ if (ret > 0)
+ return ret;
+
+ adev->driver_data = NULL;
+
+ err_out:
+ kfree(pdata);
+ return ret;
+}
+
+static int lpss_reg_read(struct device *dev, unsigned int reg, u32 *val)
+{
+ struct acpi_device *adev;
+ struct lpss_private_data *pdata;
+ unsigned long flags;
+ int ret;
+
+ ret = acpi_bus_get_device(ACPI_HANDLE(dev), &adev);
+ if (WARN_ON(ret))
+ return ret;
+
+ spin_lock_irqsave(&dev->power.lock, flags);
+ if (pm_runtime_suspended(dev)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ pdata = acpi_driver_data(adev);
+ if (WARN_ON(!pdata || !pdata->mmio_base)) {
+ ret = -ENODEV;
+ goto out;
+ }
+ *val = readl(pdata->mmio_base + pdata->dev_desc->prv_offset + reg);
+
+ out:
+ spin_unlock_irqrestore(&dev->power.lock, flags);
+ return ret;
+}
+
+static ssize_t lpss_ltr_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ u32 ltr_value = 0;
+ unsigned int reg;
+ int ret;
+
+ reg = strcmp(attr->attr.name, "auto_ltr") ? LPSS_SW_LTR : LPSS_AUTO_LTR;
+ ret = lpss_reg_read(dev, reg, &ltr_value);
+ if (ret)
+ return ret;
+
+ return snprintf(buf, PAGE_SIZE, "%08x\n", ltr_value);
+}
+
+static ssize_t lpss_ltr_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u32 ltr_mode = 0;
+ char *outstr;
+ int ret;
+
+ ret = lpss_reg_read(dev, LPSS_GENERAL, &ltr_mode);
+ if (ret)
+ return ret;
+
+ outstr = (ltr_mode & LPSS_GENERAL_LTR_MODE_SW) ? "sw" : "auto";
+ return sprintf(buf, "%s\n", outstr);
+}
+
+static DEVICE_ATTR(auto_ltr, S_IRUSR, lpss_ltr_show, NULL);
+static DEVICE_ATTR(sw_ltr, S_IRUSR, lpss_ltr_show, NULL);
+static DEVICE_ATTR(ltr_mode, S_IRUSR, lpss_ltr_mode_show, NULL);
+
+static struct attribute *lpss_attrs[] = {
+ &dev_attr_auto_ltr.attr,
+ &dev_attr_sw_ltr.attr,
+ &dev_attr_ltr_mode.attr,
+ NULL,
+};
+
+static struct attribute_group lpss_attr_group = {
+ .attrs = lpss_attrs,
+ .name = "lpss_ltr",
+};
+
+static int acpi_lpss_platform_notify(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct platform_device *pdev = to_platform_device(data);
+ struct lpss_private_data *pdata;
+ struct acpi_device *adev;
+ const struct acpi_device_id *id;
+ int ret = 0;
+
+ id = acpi_match_device(acpi_lpss_device_ids, &pdev->dev);
+ if (!id || !id->driver_data)
+ return 0;
+
+ if (acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev))
+ return 0;
+
+ pdata = acpi_driver_data(adev);
+ if (!pdata || !pdata->mmio_base || !pdata->dev_desc->ltr_required)
+ return 0;
+
+ if (pdata->mmio_size < pdata->dev_desc->prv_offset + LPSS_LTR_SIZE) {
+ dev_err(&pdev->dev, "MMIO size insufficient to access LTR\n");
+ return 0;
+ }
+
+ if (action == BUS_NOTIFY_ADD_DEVICE)
+ ret = sysfs_create_group(&pdev->dev.kobj, &lpss_attr_group);
+ else if (action == BUS_NOTIFY_DEL_DEVICE)
+ sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group);
+
+ return ret;
+}
+
+static struct notifier_block acpi_lpss_nb = {
+ .notifier_call = acpi_lpss_platform_notify,
+};
+
+static struct acpi_scan_handler lpss_handler = {
+ .ids = acpi_lpss_device_ids,
+ .attach = acpi_lpss_create_device,
+};
+
+void __init acpi_lpss_init(void)
+{
+ if (!lpt_clk_init()) {
+ bus_register_notifier(&platform_bus_type, &acpi_lpss_nb);
+ acpi_scan_add_handler(&lpss_handler);
+ }
+}
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index da1f82b445e..5e6301e9492 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -1,5 +1,7 @@
/*
- * Copyright (C) 2004 Intel Corporation <naveen.b.s@intel.com>
+ * Copyright (C) 2004, 2013 Intel Corporation
+ * Author: Naveen B S <naveen.b.s@intel.com>
+ * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
*
* All rights reserved.
*
@@ -25,14 +27,10 @@
* ranges.
*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/memory_hotplug.h>
-#include <linux/slab.h>
#include <linux/acpi.h>
-#include <acpi/acpi_drivers.h>
+#include <linux/memory_hotplug.h>
+
+#include "internal.h"
#define ACPI_MEMORY_DEVICE_CLASS "memory"
#define ACPI_MEMORY_DEVICE_HID "PNP0C80"
@@ -44,32 +42,28 @@
#define PREFIX "ACPI:memory_hp:"
ACPI_MODULE_NAME("acpi_memhotplug");
-MODULE_AUTHOR("Naveen B S <naveen.b.s@intel.com>");
-MODULE_DESCRIPTION("Hotplug Mem Driver");
-MODULE_LICENSE("GPL");
/* Memory Device States */
#define MEMORY_INVALID_STATE 0
#define MEMORY_POWER_ON_STATE 1
#define MEMORY_POWER_OFF_STATE 2
-static int acpi_memory_device_add(struct acpi_device *device);
-static int acpi_memory_device_remove(struct acpi_device *device);
+static int acpi_memory_device_add(struct acpi_device *device,
+ const struct acpi_device_id *not_used);
+static void acpi_memory_device_remove(struct acpi_device *device);
static const struct acpi_device_id memory_device_ids[] = {
{ACPI_MEMORY_DEVICE_HID, 0},
{"", 0},
};
-MODULE_DEVICE_TABLE(acpi, memory_device_ids);
-static struct acpi_driver acpi_memory_device_driver = {
- .name = "acpi_memhotplug",
- .class = ACPI_MEMORY_DEVICE_CLASS,
+static struct acpi_scan_handler memory_device_handler = {
.ids = memory_device_ids,
- .ops = {
- .add = acpi_memory_device_add,
- .remove = acpi_memory_device_remove,
- },
+ .attach = acpi_memory_device_add,
+ .detach = acpi_memory_device_remove,
+ .hotplug = {
+ .enabled = true,
+ },
};
struct acpi_memory_info {
@@ -79,7 +73,6 @@ struct acpi_memory_info {
unsigned short caching; /* memory cache attribute */
unsigned short write_protect; /* memory read/write attribute */
unsigned int enabled:1;
- unsigned int failed:1;
};
struct acpi_memory_device {
@@ -153,48 +146,6 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
return 0;
}
-static int acpi_memory_get_device(acpi_handle handle,
- struct acpi_memory_device **mem_device)
-{
- struct acpi_device *device = NULL;
- int result = 0;
-
- acpi_scan_lock_acquire();
-
- acpi_bus_get_device(handle, &device);
- if (device)
- goto end;
-
- /*
- * Now add the notified device. This creates the acpi_device
- * and invokes .add function
- */
- result = acpi_bus_scan(handle);
- if (result) {
- acpi_handle_warn(handle, "ACPI namespace scan failed\n");
- result = -EINVAL;
- goto out;
- }
- result = acpi_bus_get_device(handle, &device);
- if (result) {
- acpi_handle_warn(handle, "Missing device object\n");
- result = -EINVAL;
- goto out;
- }
-
- end:
- *mem_device = acpi_driver_data(device);
- if (!(*mem_device)) {
- dev_err(&device->dev, "driver data not found\n");
- result = -ENODEV;
- goto out;
- }
-
- out:
- acpi_scan_lock_release();
- return result;
-}
-
static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
{
unsigned long long current_status;
@@ -249,13 +200,11 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
* returns -EEXIST. If add_memory() returns the other error, it
* means that this memory block is not used by the kernel.
*/
- if (result && result != -EEXIST) {
- info->failed = 1;
+ if (result && result != -EEXIST)
continue;
- }
- if (!result)
- info->enabled = 1;
+ info->enabled = 1;
+
/*
* Add num_enable even if add_memory() returns -EEXIST, so the
* device is bound to this driver.
@@ -286,16 +235,8 @@ static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
nid = acpi_get_node(mem_device->device->handle);
list_for_each_entry_safe(info, n, &mem_device->res_list, list) {
- if (info->failed)
- /* The kernel does not use this memory block */
- continue;
-
if (!info->enabled)
- /*
- * The kernel uses this memory block, but it may be not
- * managed by us.
- */
- return -EBUSY;
+ continue;
if (nid < 0)
nid = memory_add_physaddr_to_nid(info->start_addr);
@@ -310,95 +251,21 @@ static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
return result;
}
-static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
-{
- struct acpi_memory_device *mem_device;
- struct acpi_device *device;
- struct acpi_eject_event *ej_event = NULL;
- u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
- acpi_status status;
-
- switch (event) {
- case ACPI_NOTIFY_BUS_CHECK:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "\nReceived BUS CHECK notification for device\n"));
- /* Fall Through */
- case ACPI_NOTIFY_DEVICE_CHECK:
- if (event == ACPI_NOTIFY_DEVICE_CHECK)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "\nReceived DEVICE CHECK notification for device\n"));
- if (acpi_memory_get_device(handle, &mem_device)) {
- acpi_handle_err(handle, "Cannot find driver data\n");
- break;
- }
-
- ost_code = ACPI_OST_SC_SUCCESS;
- break;
-
- case ACPI_NOTIFY_EJECT_REQUEST:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "\nReceived EJECT REQUEST notification for device\n"));
-
- status = AE_ERROR;
- acpi_scan_lock_acquire();
-
- if (acpi_bus_get_device(handle, &device)) {
- acpi_handle_err(handle, "Device doesn't exist\n");
- goto unlock;
- }
- mem_device = acpi_driver_data(device);
- if (!mem_device) {
- acpi_handle_err(handle, "Driver Data is NULL\n");
- goto unlock;
- }
-
- ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
- if (!ej_event) {
- pr_err(PREFIX "No memory, dropping EJECT\n");
- goto unlock;
- }
-
- get_device(&device->dev);
- ej_event->device = device;
- ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
- /* The eject is carried out asynchronously. */
- status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device,
- ej_event);
- if (ACPI_FAILURE(status)) {
- put_device(&device->dev);
- kfree(ej_event);
- }
-
- unlock:
- acpi_scan_lock_release();
- if (ACPI_SUCCESS(status))
- return;
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
-
- /* non-hotplug event; possibly handled by other handler */
- return;
- }
-
- /* Inform firmware that the hotplug operation has completed */
- (void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
-}
-
static void acpi_memory_device_free(struct acpi_memory_device *mem_device)
{
if (!mem_device)
return;
acpi_memory_free_device_resources(mem_device);
+ mem_device->device->driver_data = NULL;
kfree(mem_device);
}
-static int acpi_memory_device_add(struct acpi_device *device)
+static int acpi_memory_device_add(struct acpi_device *device,
+ const struct acpi_device_id *not_used)
{
+ struct acpi_memory_device *mem_device;
int result;
- struct acpi_memory_device *mem_device = NULL;
-
if (!device)
return -EINVAL;
@@ -423,147 +290,36 @@ static int acpi_memory_device_add(struct acpi_device *device)
/* Set the device state */
mem_device->state = MEMORY_POWER_ON_STATE;
- pr_debug("%s\n", acpi_device_name(device));
+ result = acpi_memory_check_device(mem_device);
+ if (result) {
+ acpi_memory_device_free(mem_device);
+ return 0;
+ }
- if (!acpi_memory_check_device(mem_device)) {
- /* call add_memory func */
- result = acpi_memory_enable_device(mem_device);
- if (result) {
- dev_err(&device->dev,
- "Error in acpi_memory_enable_device\n");
- acpi_memory_device_free(mem_device);
- }
+ result = acpi_memory_enable_device(mem_device);
+ if (result) {
+ dev_err(&device->dev, "acpi_memory_enable_device() error\n");
+ acpi_memory_device_free(mem_device);
+ return -ENODEV;
}
- return result;
+
+ dev_dbg(&device->dev, "Memory device configured by ACPI\n");
+ return 1;
}
-static int acpi_memory_device_remove(struct acpi_device *device)
+static void acpi_memory_device_remove(struct acpi_device *device)
{
- struct acpi_memory_device *mem_device = NULL;
- int result;
+ struct acpi_memory_device *mem_device;
if (!device || !acpi_driver_data(device))
- return -EINVAL;
+ return;
mem_device = acpi_driver_data(device);
-
- result = acpi_memory_remove_memory(mem_device);
- if (result)
- return result;
-
+ acpi_memory_remove_memory(mem_device);
acpi_memory_device_free(mem_device);
-
- return 0;
-}
-
-/*
- * Helper function to check for memory device
- */
-static acpi_status is_memory_device(acpi_handle handle)
-{
- char *hardware_id;
- acpi_status status;
- struct acpi_device_info *info;
-
- status = acpi_get_object_info(handle, &info);
- if (ACPI_FAILURE(status))
- return status;
-
- if (!(info->valid & ACPI_VALID_HID)) {
- kfree(info);
- return AE_ERROR;
- }
-
- hardware_id = info->hardware_id.string;
- if ((hardware_id == NULL) ||
- (strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
- status = AE_ERROR;
-
- kfree(info);
- return status;
-}
-
-static acpi_status
-acpi_memory_register_notify_handler(acpi_handle handle,
- u32 level, void *ctxt, void **retv)
-{
- acpi_status status;
-
-
- status = is_memory_device(handle);
- if (ACPI_FAILURE(status))
- return AE_OK; /* continue */
-
- status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
- acpi_memory_device_notify, NULL);
- /* continue */
- return AE_OK;
-}
-
-static acpi_status
-acpi_memory_deregister_notify_handler(acpi_handle handle,
- u32 level, void *ctxt, void **retv)
-{
- acpi_status status;
-
-
- status = is_memory_device(handle);
- if (ACPI_FAILURE(status))
- return AE_OK; /* continue */
-
- status = acpi_remove_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- acpi_memory_device_notify);
-
- return AE_OK; /* continue */
-}
-
-static int __init acpi_memory_device_init(void)
-{
- int result;
- acpi_status status;
-
-
- result = acpi_bus_register_driver(&acpi_memory_device_driver);
-
- if (result < 0)
- return -ENODEV;
-
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- acpi_memory_register_notify_handler, NULL,
- NULL, NULL);
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "walk_namespace failed"));
- acpi_bus_unregister_driver(&acpi_memory_device_driver);
- return -ENODEV;
- }
-
- return 0;
}
-static void __exit acpi_memory_device_exit(void)
+void __init acpi_memory_hotplug_init(void)
{
- acpi_status status;
-
-
- /*
- * Adding this to un-install notification handlers for all the device
- * handles.
- */
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- acpi_memory_deregister_notify_handler, NULL,
- NULL, NULL);
-
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status, "walk_namespace failed"));
-
- acpi_bus_unregister_driver(&acpi_memory_device_driver);
-
- return;
+ acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory");
}
-
-module_init(acpi_memory_device_init);
-module_exit(acpi_memory_device_exit);
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 31de1043eea..27bb6a91de5 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -236,7 +236,7 @@ static int create_power_saving_task(void)
ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread,
(void *)(unsigned long)ps_tsk_num,
"acpi_pad/%d", ps_tsk_num);
- rc = IS_ERR(ps_tsks[ps_tsk_num]) ? PTR_ERR(ps_tsks[ps_tsk_num]) : 0;
+ rc = PTR_RET(ps_tsks[ps_tsk_num]);
if (!rc)
ps_tsk_num++;
else
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 26fce4b8a63..fafec5ddf17 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -22,9 +22,6 @@
ACPI_MODULE_NAME("platform");
-/* Flags for acpi_create_platform_device */
-#define ACPI_PLATFORM_CLK BIT(0)
-
/*
* The following ACPI IDs are known to be suitable for representing as
* platform devices.
@@ -33,33 +30,9 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
{ "PNP0D40" },
- /* Haswell LPSS devices */
- { "INT33C0", ACPI_PLATFORM_CLK },
- { "INT33C1", ACPI_PLATFORM_CLK },
- { "INT33C2", ACPI_PLATFORM_CLK },
- { "INT33C3", ACPI_PLATFORM_CLK },
- { "INT33C4", ACPI_PLATFORM_CLK },
- { "INT33C5", ACPI_PLATFORM_CLK },
- { "INT33C6", ACPI_PLATFORM_CLK },
- { "INT33C7", ACPI_PLATFORM_CLK },
-
{ }
};
-static int acpi_create_platform_clks(struct acpi_device *adev)
-{
- static struct platform_device *pdev;
-
- /* Create Lynxpoint LPSS clocks */
- if (!pdev && !strncmp(acpi_device_hid(adev), "INT33C", 6)) {
- pdev = platform_device_register_simple("clk-lpt", -1, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
- }
-
- return 0;
-}
-
/**
* acpi_create_platform_device - Create platform device for ACPI device node
* @adev: ACPI device node to create a platform device for.
@@ -71,10 +44,9 @@ static int acpi_create_platform_clks(struct acpi_device *adev)
*
* Name of the platform device will be the same as @adev's.
*/
-static int acpi_create_platform_device(struct acpi_device *adev,
- const struct acpi_device_id *id)
+int acpi_create_platform_device(struct acpi_device *adev,
+ const struct acpi_device_id *id)
{
- unsigned long flags = id->driver_data;
struct platform_device *pdev = NULL;
struct acpi_device *acpi_parent;
struct platform_device_info pdevinfo;
@@ -83,14 +55,6 @@ static int acpi_create_platform_device(struct acpi_device *adev,
struct resource *resources;
int count;
- if (flags & ACPI_PLATFORM_CLK) {
- int ret = acpi_create_platform_clks(adev);
- if (ret) {
- dev_err(&adev->dev, "failed to create clocks\n");
- return ret;
- }
- }
-
/* If the ACPI node already has a physical device attached, skip it. */
if (adev->physical_node_count)
return 0;
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index a1b9bf5085a..7ddf29eca9f 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -83,6 +83,7 @@ acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
acpi-y += \
nsaccess.o \
nsalloc.o \
+ nsconvert.o \
nsdump.o \
nseval.o \
nsinit.o \
@@ -160,6 +161,7 @@ acpi-y += \
utobject.o \
utosi.o \
utownerid.o \
+ utpredef.o \
utresrc.o \
utstate.o \
utstring.o \
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index ecb49927b81..07160928ca2 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -224,6 +224,7 @@ ACPI_EXTERN u8 acpi_gbl_global_lock_pending;
*/
ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */
ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
+ACPI_EXTERN acpi_spinlock acpi_gbl_reference_count_lock;
/* Mutex for _OSI support */
@@ -413,10 +414,12 @@ ACPI_EXTERN u8 acpi_gbl_db_output_flags;
#ifdef ACPI_DISASSEMBLER
-u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE);
+ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE);
ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
+ACPI_EXTERN u8 acpi_gbl_num_external_methods;
+ACPI_EXTERN u32 acpi_gbl_resolved_external_methods;
ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list;
ACPI_EXTERN struct acpi_external_file *acpi_gbl_external_file_list;
#endif
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 805f419086a..d5bfbd331bf 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -294,6 +294,8 @@ acpi_status(*acpi_internal_method) (struct acpi_walk_state * walk_state);
#define ACPI_BTYPE_OBJECTS_AND_REFS 0x0001FFFF /* ARG or LOCAL */
#define ACPI_BTYPE_ALL_OBJECTS 0x0000FFFF
+#pragma pack(1)
+
/*
* Information structure for ACPI predefined names.
* Each entry in the table contains the following items:
@@ -304,7 +306,7 @@ acpi_status(*acpi_internal_method) (struct acpi_walk_state * walk_state);
*/
struct acpi_name_info {
char name[ACPI_NAME_SIZE];
- u8 param_count;
+ u16 argument_list;
u8 expected_btypes;
};
@@ -327,7 +329,7 @@ struct acpi_package_info {
u8 count1;
u8 object_type2;
u8 count2;
- u8 reserved;
+ u16 reserved;
};
/* Used for ACPI_PTYPE2_FIXED */
@@ -336,6 +338,7 @@ struct acpi_package_info2 {
u8 type;
u8 count;
u8 object_type[4];
+ u8 reserved;
};
/* Used for ACPI_PTYPE1_OPTION */
@@ -345,7 +348,7 @@ struct acpi_package_info3 {
u8 count;
u8 object_type[2];
u8 tail_object_type;
- u8 reserved;
+ u16 reserved;
};
union acpi_predefined_info {
@@ -355,6 +358,10 @@ union acpi_predefined_info {
struct acpi_package_info3 ret_info3;
};
+/* Reset to default packing */
+
+#pragma pack()
+
/* Data block used during object validation */
struct acpi_predefined_data {
@@ -363,6 +370,7 @@ struct acpi_predefined_data {
union acpi_operand_object *parent_package;
struct acpi_namespace_node *node;
u32 flags;
+ u32 return_btype;
u8 node_flags;
};
@@ -371,6 +379,20 @@ struct acpi_predefined_data {
#define ACPI_OBJECT_REPAIRED 1
#define ACPI_OBJECT_WRAPPED 2
+/* Return object auto-repair info */
+
+typedef acpi_status(*acpi_object_converter) (union acpi_operand_object
+ *original_object,
+ union acpi_operand_object
+ **converted_object);
+
+struct acpi_simple_repair_info {
+ char name[ACPI_NAME_SIZE];
+ u32 unexpected_btypes;
+ u32 package_index;
+ acpi_object_converter object_converter;
+};
+
/*
* Bitmapped return value types
* Note: the actual data types must be contiguous, a loop in nspredef.c
@@ -1037,6 +1059,7 @@ struct acpi_external_list {
u16 length;
u8 type;
u8 flags;
+ u8 resolved;
};
/* Values for Flags field above */
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index ed7943b9044..53666bd9193 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -322,10 +322,12 @@
* where a pointer to an object of type union acpi_operand_object can also
* appear. This macro is used to distinguish them.
*
- * The "Descriptor" field is the first field in both structures.
+ * The "DescriptorType" field is the second field in both structures.
*/
+#define ACPI_GET_DESCRIPTOR_PTR(d) (((union acpi_descriptor *)(void *)(d))->common.common_pointer)
+#define ACPI_SET_DESCRIPTOR_PTR(d, p) (((union acpi_descriptor *)(void *)(d))->common.common_pointer = (p))
#define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
-#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
+#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = (t))
/*
* Macros for the master AML opcode table
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 02cd5482ff8..d2e491876bc 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -167,6 +167,29 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent);
int acpi_ns_compare_names(char *name1, char *name2);
/*
+ * nsconvert - Dynamic object conversion routines
+ */
+acpi_status
+acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object);
+
+acpi_status
+acpi_ns_convert_to_string(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object);
+
+acpi_status
+acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object);
+
+acpi_status
+acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object);
+
+acpi_status
+acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object);
+
+/*
* nsdump - Namespace dump/print utilities
*/
#ifdef ACPI_FUTURE_USAGE
@@ -208,10 +231,6 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
acpi_status return_status,
union acpi_operand_object **return_object);
-const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
- acpi_namespace_node
- *node);
-
void
acpi_ns_check_parameter_count(char *pathname,
struct acpi_namespace_node *node,
@@ -289,7 +308,7 @@ acpi_ns_get_attached_data(struct acpi_namespace_node *node,
* predefined methods/objects
*/
acpi_status
-acpi_ns_repair_object(struct acpi_predefined_data *data,
+acpi_ns_simple_repair(struct acpi_predefined_data *data,
u32 expected_btypes,
u32 package_index,
union acpi_operand_object **return_object_ptr);
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 752cc40cdc1..b22b70944fd 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -56,7 +56,7 @@
* object type
* count
*
- * ACPI_PTYPE1_VAR: Variable-length length:
+ * ACPI_PTYPE1_VAR: Variable-length length. Zero-length package is allowed:
* object type (Int/Buf/Ref)
*
* ACPI_PTYPE1_OPTION: Package has some required and some optional elements
@@ -66,14 +66,16 @@
* 2) PTYPE2 packages contain a Variable-length number of sub-packages. Each
* of the different types describe the contents of each of the sub-packages.
*
- * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types:
+ * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types. Zero-length
+ * parent package is allowed:
* object type
* count
* object type
* count
* (Used for _ALR,_MLS,_PSS,_TRT,_TSS)
*
- * ACPI_PTYPE2_COUNT: Each subpackage has a count as first element:
+ * ACPI_PTYPE2_COUNT: Each subpackage has a count as first element.
+ * Zero-length parent package is allowed:
* object type
* (Used for _CSD,_PSD,_TSD)
*
@@ -84,17 +86,19 @@
* count
* (Used for _CST)
*
- * ACPI_PTYPE2_FIXED: Each subpackage is of Fixed-length
+ * ACPI_PTYPE2_FIXED: Each subpackage is of Fixed-length. Zero-length
+ * parent package is allowed.
* (Used for _PRT)
*
- * ACPI_PTYPE2_MIN: Each subpackage has a Variable-length but minimum length
+ * ACPI_PTYPE2_MIN: Each subpackage has a Variable-length but minimum length.
+ * Zero-length parent package is allowed:
* (Used for _HPX)
*
* ACPI_PTYPE2_REV_FIXED: Revision at start, each subpackage is Fixed-length
* (Used for _ART, _FPS)
*
* ACPI_PTYPE2_FIX_VAR: Each subpackage consists of some fixed-length elements
- * followed by an optional element
+ * followed by an optional element. Zero-length parent package is allowed.
* object type
* count
* object type
@@ -116,8 +120,47 @@ enum acpi_return_package_types {
ACPI_PTYPE2_FIX_VAR = 10
};
+/* Support macros for users of the predefined info table */
+
+#define METHOD_PREDEF_ARGS_MAX 4
+#define METHOD_ARG_BIT_WIDTH 3
+#define METHOD_ARG_MASK 0x0007
+#define ARG_COUNT_IS_MINIMUM 0x8000
+#define METHOD_MAX_ARG_TYPE ACPI_TYPE_PACKAGE
+
+#define METHOD_GET_COUNT(arg_list) (arg_list & METHOD_ARG_MASK)
+#define METHOD_GET_NEXT_ARG(arg_list) (arg_list >> METHOD_ARG_BIT_WIDTH)
+
+/* Macros used to build the predefined info table */
+
+#define METHOD_0ARGS 0
+#define METHOD_1ARGS(a1) (1 | (a1 << 3))
+#define METHOD_2ARGS(a1,a2) (2 | (a1 << 3) | (a2 << 6))
+#define METHOD_3ARGS(a1,a2,a3) (3 | (a1 << 3) | (a2 << 6) | (a3 << 9))
+#define METHOD_4ARGS(a1,a2,a3,a4) (4 | (a1 << 3) | (a2 << 6) | (a3 << 9) | (a4 << 12))
+
+#define METHOD_RETURNS(type) (type)
+#define METHOD_NO_RETURN_VALUE 0
+
+#define PACKAGE_INFO(a,b,c,d,e,f) {{{(a),(b),(c),(d)}, ((((u16)(f)) << 8) | (e)), 0}}
+
+/* Support macros for the resource descriptor info table */
+
+#define WIDTH_1 0x0001
+#define WIDTH_2 0x0002
+#define WIDTH_3 0x0004
+#define WIDTH_8 0x0008
+#define WIDTH_16 0x0010
+#define WIDTH_32 0x0020
+#define WIDTH_64 0x0040
+#define VARIABLE_DATA 0x0080
+#define NUM_RESOURCE_WIDTHS 8
+
+#define WIDTH_ADDRESS WIDTH_16 | WIDTH_32 | WIDTH_64
+
#ifdef ACPI_CREATE_PREDEFINED_TABLE
-/*
+/******************************************************************************
+ *
* Predefined method/object information table.
*
* These are the names that can actually be evaluated via acpi_evaluate_object.
@@ -125,23 +168,24 @@ enum acpi_return_package_types {
*
* 1) Predefined/Reserved names that are never evaluated via
* acpi_evaluate_object:
- * _Lxx and _Exx GPE methods
- * _Qxx EC methods
- * _T_x compiler temporary variables
+ * _Lxx and _Exx GPE methods
+ * _Qxx EC methods
+ * _T_x compiler temporary variables
+ * _Wxx wake events
*
* 2) Predefined names that never actually exist within the AML code:
- * Predefined resource descriptor field names
+ * Predefined resource descriptor field names
*
* 3) Predefined names that are implemented within ACPICA:
- * _OSI
- *
- * 4) Some predefined names that are not documented within the ACPI spec.
- * _WDG, _WED
+ * _OSI
*
* The main entries in the table each contain the following items:
*
* name - The ACPI reserved name
- * param_count - Number of arguments to the method
+ * argument_list - Contains (in 16 bits), the number of required
+ * arguments to the method (3 bits), and a 3-bit type
+ * field for each argument (up to 4 arguments). The
+ * METHOD_?ARGS macros generate the correct packed data.
* expected_btypes - Allowed type(s) for the return value.
* 0 means that no return value is expected.
*
@@ -151,256 +195,511 @@ enum acpi_return_package_types {
* overall size of the stored data.
*
* Note: The additional braces are intended to promote portability.
- */
-static const union acpi_predefined_info predefined_names[] = {
- {{"_AC0", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC1", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC2", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC3", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC4", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC5", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC6", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC7", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC8", 0, ACPI_RTYPE_INTEGER}},
- {{"_AC9", 0, ACPI_RTYPE_INTEGER}},
- {{"_ADR", 0, ACPI_RTYPE_INTEGER}},
- {{"_AEI", 0, ACPI_RTYPE_BUFFER}},
- {{"_AL0", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL1", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL2", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL3", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL4", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL5", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL6", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL7", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL8", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_AL9", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_ALC", 0, ACPI_RTYPE_INTEGER}},
- {{"_ALI", 0, ACPI_RTYPE_INTEGER}},
- {{"_ALP", 0, ACPI_RTYPE_INTEGER}},
- {{"_ALR", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 2 (Ints) */
- {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2,0}, 0,0}},
-
- {{"_ALT", 0, ACPI_RTYPE_INTEGER}},
- {{"_ART", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(rev), n Pkg (2 Ref/11 Int) */
- {{{ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_REFERENCE, 2, ACPI_RTYPE_INTEGER},
- 11, 0}},
-
- {{"_BBN", 0, ACPI_RTYPE_INTEGER}},
- {{"_BCL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}},
-
- {{"_BCM", 1, 0}},
- {{"_BCT", 1, ACPI_RTYPE_INTEGER}},
- {{"_BDN", 0, ACPI_RTYPE_INTEGER}},
- {{"_BFS", 1, 0}},
- {{"_BIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (9 Int),(4 Str) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 9, ACPI_RTYPE_STRING}, 4, 0}},
-
- {{"_BIX", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (16 Int),(4 Str) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, ACPI_RTYPE_STRING}, 4,
- 0}},
-
- {{"_BLT", 3, 0}},
- {{"_BMA", 1, ACPI_RTYPE_INTEGER}},
- {{"_BMC", 1, 0}},
- {{"_BMD", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (5 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5,0}, 0,0}},
-
- {{"_BMS", 1, ACPI_RTYPE_INTEGER}},
- {{"_BQC", 0, ACPI_RTYPE_INTEGER}},
- {{"_BST", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}},
-
- {{"_BTM", 1, ACPI_RTYPE_INTEGER}},
- {{"_BTP", 1, 0}},
- {{"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* See PCI firmware spec 3.0 */
- {{"_CDM", 0, ACPI_RTYPE_INTEGER}},
- {{"_CID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints/Strs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0}, 0,
- 0}},
-
- {{"_CLS", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (3 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0}, 0, 0}},
-
- {{"_CPC", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints/Bufs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0, 0}, 0,
- 0}},
-
- {{"_CRS", 0, ACPI_RTYPE_BUFFER}},
- {{"_CRT", 0, ACPI_RTYPE_INTEGER}},
- {{"_CSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(n), n-1 Int) */
- {{{ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0,0}, 0,0}},
-
- {{"_CST", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(n), n Pkg (1 Buf/3 Int) */
- {{{ACPI_PTYPE2_PKG_COUNT, ACPI_RTYPE_BUFFER, 1, ACPI_RTYPE_INTEGER}, 3,
- 0}},
-
- {{"_CWS", 1, ACPI_RTYPE_INTEGER}},
- {{"_DCK", 1, ACPI_RTYPE_INTEGER}},
- {{"_DCS", 0, ACPI_RTYPE_INTEGER}},
- {{"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}},
- {{"_DDN", 0, ACPI_RTYPE_STRING}},
- {{"_DEP", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}},
-
- {{"_DGS", 0, ACPI_RTYPE_INTEGER}},
- {{"_DIS", 0, 0}},
-
- {{"_DLM", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (1 Ref, 0/1 Optional Buf/Ref) */
- {{{ACPI_PTYPE2_FIX_VAR, ACPI_RTYPE_REFERENCE, 1,
- ACPI_RTYPE_REFERENCE | ACPI_RTYPE_BUFFER}, 0, 0}},
-
- {{"_DMA", 0, ACPI_RTYPE_BUFFER}},
- {{"_DOD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}},
-
- {{"_DOS", 1, 0}},
- {{"_DSM", 4, ACPI_RTYPE_ALL}}, /* Must return a type, but it can be of any type */
- {{"_DSS", 1, 0}},
- {{"_DSW", 3, 0}},
- {{"_DTI", 1, 0}},
- {{"_EC_", 0, ACPI_RTYPE_INTEGER}},
- {{"_EDL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs)*/
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_EJ0", 1, 0}},
- {{"_EJ1", 1, 0}},
- {{"_EJ2", 1, 0}},
- {{"_EJ3", 1, 0}},
- {{"_EJ4", 1, 0}},
- {{"_EJD", 0, ACPI_RTYPE_STRING}},
- {{"_EVT", 1, 0}},
- {{"_FDE", 0, ACPI_RTYPE_BUFFER}},
- {{"_FDI", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (16 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16,0}, 0,0}},
-
- {{"_FDM", 1, 0}},
- {{"_FIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0}, 0, 0}},
-
- {{"_FIX", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}},
-
- {{"_FPS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(rev), n Pkg (5 Int) */
- {{{ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 5, 0}, 0, 0}},
-
- {{"_FSL", 1, 0}},
- {{"_FST", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (3 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0}, 0, 0}},
-
- {{"_GAI", 0, ACPI_RTYPE_INTEGER}},
- {{"_GCP", 0, ACPI_RTYPE_INTEGER}},
- {{"_GHL", 0, ACPI_RTYPE_INTEGER}},
- {{"_GLK", 0, ACPI_RTYPE_INTEGER}},
- {{"_GPD", 0, ACPI_RTYPE_INTEGER}},
- {{"_GPE", 0, ACPI_RTYPE_INTEGER}}, /* _GPE method, not _GPE scope */
- {{"_GRT", 0, ACPI_RTYPE_BUFFER}},
- {{"_GSB", 0, ACPI_RTYPE_INTEGER}},
- {{"_GTF", 0, ACPI_RTYPE_BUFFER}},
- {{"_GTM", 0, ACPI_RTYPE_BUFFER}},
- {{"_GTS", 1, 0}},
- {{"_GWS", 1, ACPI_RTYPE_INTEGER}},
- {{"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
- {{"_HOT", 0, ACPI_RTYPE_INTEGER}},
- {{"_HPP", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}},
+ *
+ * Note2: Table is used by the kernel-resident subsystem, the iASL compiler,
+ * and the acpi_help utility.
+ *
+ * TBD: _PRT - currently ignore reversed entries. Attempt to fix in nsrepair.
+ * Possibly fixing package elements like _BIF, etc.
+ *
+ *****************************************************************************/
+
+const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
+ {{"_AC0", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC1", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC2", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC3", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC4", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC5", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC6", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC7", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC8", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AC9", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ADR", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_AEI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_AL0", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL1", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL2", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL3", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL4", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL5", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL6", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL7", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL8", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_AL9", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_ALC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ALI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ALP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ALR", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each 2 (Ints) */
+ PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2, 0, 0, 0),
+
+ {{"_ALT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ART", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(rev), n Pkg (2 Ref/11 Int) */
+ PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_REFERENCE, 2,
+ ACPI_RTYPE_INTEGER, 11, 0),
+
+ {{"_BBN", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BCL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0),
+
+ {{"_BCM", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_BCT", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BDN", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BFS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_BIF", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (9 Int),(4 Str) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 9,
+ ACPI_RTYPE_STRING, 4, 0),
+
+ {{"_BIX", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (16 Int),(4 Str) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16,
+ ACPI_RTYPE_STRING, 4, 0),
+
+ {{"_BLT",
+ METHOD_3ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_BMA", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BMC", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_BMD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (5 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+
+ {{"_BMS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BQC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BST", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (4 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0),
+
+ {{"_BTM", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_BTP", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_CBA", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* See PCI firmware spec 3.0 */
+
+ {{"_CDM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_CID", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints/Strs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0,
+ 0, 0, 0),
+
+ {{"_CLS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (3 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0, 0, 0),
+
+ {{"_CPC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints/Bufs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0,
+ 0, 0, 0),
+
+ {{"_CRS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_CRT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_CSD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(n), n-1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0),
+
+ {{"_CST", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(n), n Pkg (1 Buf/3 Int) */
+ PACKAGE_INFO(ACPI_PTYPE2_PKG_COUNT, ACPI_RTYPE_BUFFER, 1,
+ ACPI_RTYPE_INTEGER, 3, 0),
+
+ {{"_CWS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_DCK", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_DCS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_DDC", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER)}},
+
+ {{"_DDN", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_STRING)}},
+
+ {{"_DEP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_DGS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_DIS", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_DLM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (1 Ref, 0/1 Optional Buf/Ref) */
+ PACKAGE_INFO(ACPI_PTYPE2_FIX_VAR, ACPI_RTYPE_REFERENCE, 1,
+ ACPI_RTYPE_REFERENCE | ACPI_RTYPE_BUFFER, 0, 0),
+
+ {{"_DMA", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_DOD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0),
+
+ {{"_DOS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_DSM",
+ METHOD_4ARGS(ACPI_TYPE_BUFFER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER,
+ ACPI_TYPE_PACKAGE),
+ METHOD_RETURNS(ACPI_RTYPE_ALL)}}, /* Must return a value, but it can be of any type */
+
+ {{"_DSS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_DSW",
+ METHOD_3ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_DTI", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EC_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_EDL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_EJ0", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EJ1", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EJ2", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EJ3", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EJ4", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_EJD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_STRING)}},
+
+ {{"_ERR",
+ METHOD_3ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_STRING, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* Internal use only, used by ACPICA test suites */
+
+ {{"_EVT", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_FDE", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_FDI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (16 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, 0, 0, 0),
+
+ {{"_FDM", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_FIF", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (4 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0),
+
+ {{"_FIX", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Ints) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0),
+
+ {{"_FPS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(rev), n Pkg (5 Int) */
+ PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+
+ {{"_FSL", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_FST", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (3 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0, 0, 0),
+
+ {{"_GAI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GCP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GHL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GLK", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GPD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GPE", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* _GPE method, not _GPE scope */
+
+ {{"_GRT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_GSB", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_GTF", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_GTM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_GTS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_GWS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_HID", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING)}},
+
+ {{"_HOT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_HPP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (4 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0),
/*
- * For _HPX, a single package is returned, containing a Variable-length number
+ * For _HPX, a single package is returned, containing a variable-length number
* of sub-packages. Each sub-package contains a PCI record setting.
* There are several different type of record settings, of different
* lengths, but all elements of all settings are Integers.
*/
- {{"_HPX", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (var Ints) */
- {{{ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5,0}, 0,0}},
-
- {{"_HRV", 0, ACPI_RTYPE_INTEGER}},
- {{"_IFT", 0, ACPI_RTYPE_INTEGER}}, /* See IPMI spec */
- {{"_INI", 0, 0}},
- {{"_IRC", 0, 0}},
- {{"_LCK", 1, 0}},
- {{"_LID", 0, ACPI_RTYPE_INTEGER}},
- {{"_MAT", 0, ACPI_RTYPE_BUFFER}},
- {{"_MBM", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (8 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 8, 0}, 0, 0}},
-
- {{"_MLS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (1 Str/1 Buf) */
- {{{ACPI_PTYPE2, ACPI_RTYPE_STRING, 1, ACPI_RTYPE_BUFFER}, 1, 0}},
-
- {{"_MSG", 1, 0}},
- {{"_MSM", 4, ACPI_RTYPE_INTEGER}},
- {{"_NTT", 0, ACPI_RTYPE_INTEGER}},
- {{"_OFF", 0, 0}},
- {{"_ON_", 0, 0}},
- {{"_OS_", 0, ACPI_RTYPE_STRING}},
- {{"_OSC", 4, ACPI_RTYPE_BUFFER}},
- {{"_OST", 3, 0}},
- {{"_PAI", 1, ACPI_RTYPE_INTEGER}},
- {{"_PCL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_PCT", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Buf) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2,0}, 0,0}},
-
- {{"_PDC", 1, 0}},
- {{"_PDL", 0, ACPI_RTYPE_INTEGER}},
- {{"_PIC", 1, 0}},
- {{"_PIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (3 Int),(3 Str) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, ACPI_RTYPE_STRING}, 3, 0}},
-
- {{"_PLD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Bufs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0,0}, 0,0}},
-
- {{"_PMC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (11 Int),(3 Str) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 11, ACPI_RTYPE_STRING}, 3,
- 0}},
-
- {{"_PMD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}},
-
- {{"_PMM", 0, ACPI_RTYPE_INTEGER}},
- {{"_PPC", 0, ACPI_RTYPE_INTEGER}},
- {{"_PPE", 0, ACPI_RTYPE_INTEGER}}, /* See dig64 spec */
- {{"_PR0", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_PR1", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_PR2", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_PR3", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}},
-
- {{"_PRE", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}},
-
- {{"_PRL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}},
-
- {{"_PRS", 0, ACPI_RTYPE_BUFFER}},
+ {{"_HPX", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (var Ints) */
+ PACKAGE_INFO(ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+
+ {{"_HRV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_IFT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* See IPMI spec */
+
+ {{"_INI", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_IRC", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_LCK", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_LID", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_MAT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_MBM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (8 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 8, 0, 0, 0),
+
+ {{"_MLS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (1 Str/1 Buf) */
+ PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_STRING, 1, ACPI_RTYPE_BUFFER, 1,
+ 0),
+
+ {{"_MSG", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_MSM",
+ METHOD_4ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER,
+ ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_NTT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_OFF", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_ON_", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_OS_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_STRING)}},
+
+ {{"_OSC",
+ METHOD_4ARGS(ACPI_TYPE_BUFFER, ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER,
+ ACPI_TYPE_BUFFER),
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_OST",
+ METHOD_3ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_BUFFER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PAI", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PCL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PCT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (2 Buf) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0),
+
+ {{"_PDC", METHOD_1ARGS(ACPI_TYPE_BUFFER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PDL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PIC", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PIF", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (3 Int),(3 Str) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3,
+ ACPI_RTYPE_STRING, 3, 0),
+
+ {{"_PLD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Bufs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0, 0, 0, 0),
+
+ {{"_PMC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (11 Int),(3 Str) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 11,
+ ACPI_RTYPE_STRING, 3, 0),
+
+ {{"_PMD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PMM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PPC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PPE", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* See dig64 spec */
+
+ {{"_PR0", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PR1", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PR2", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PR3", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PRE", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PRL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PRS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
/*
* For _PRT, many BIOSs reverse the 3rd and 4th Package elements (Source
@@ -410,47 +709,89 @@ static const union acpi_predefined_info predefined_names[] = {
* warning, add the ACPI_RTYPE_REFERENCE type to the 4th element (index 3)
* in the statement below.
*/
- {{"_PRT", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (4): Int,Int,Int/Ref,Int */
- {{{ACPI_PTYPE2_FIXED, 4, ACPI_RTYPE_INTEGER,ACPI_RTYPE_INTEGER},
- ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE,
- ACPI_RTYPE_INTEGER}},
-
- {{"_PRW", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each: Pkg/Int,Int,[Variable-length Refs] (Pkg is Ref/Int) */
- {{{ACPI_PTYPE1_OPTION, 2, ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE,
- ACPI_RTYPE_INTEGER}, ACPI_RTYPE_REFERENCE,0}},
-
- {{"_PS0", 0, 0}},
- {{"_PS1", 0, 0}},
- {{"_PS2", 0, 0}},
- {{"_PS3", 0, 0}},
- {{"_PSC", 0, ACPI_RTYPE_INTEGER}},
- {{"_PSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (5 Int) with count */
- {{{ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER,0,0}, 0,0}},
-
- {{"_PSE", 1, 0}},
- {{"_PSL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_PSR", 0, ACPI_RTYPE_INTEGER}},
- {{"_PSS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (6 Int) */
- {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6,0}, 0,0}},
-
- {{"_PSV", 0, ACPI_RTYPE_INTEGER}},
- {{"_PSW", 1, 0}},
- {{"_PTC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Buf) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2,0}, 0,0}},
-
- {{"_PTP", 2, ACPI_RTYPE_INTEGER}},
- {{"_PTS", 1, 0}},
- {{"_PUR", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0}, 0, 0}},
-
- {{"_PXM", 0, ACPI_RTYPE_INTEGER}},
- {{"_REG", 2, 0}},
- {{"_REV", 0, ACPI_RTYPE_INTEGER}},
- {{"_RMV", 0, ACPI_RTYPE_INTEGER}},
- {{"_ROM", 2, ACPI_RTYPE_BUFFER}},
- {{"_RTV", 0, ACPI_RTYPE_INTEGER}},
+ {{"_PRT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (4): Int,Int,Int/Ref,Int */
+ PACKAGE_INFO(ACPI_PTYPE2_FIXED, 4, ACPI_RTYPE_INTEGER,
+ ACPI_RTYPE_INTEGER,
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE,
+ ACPI_RTYPE_INTEGER),
+
+ {{"_PRW", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each: Pkg/Int,Int,[Variable-length Refs] (Pkg is Ref/Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_OPTION, 2,
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE,
+ ACPI_RTYPE_INTEGER, ACPI_RTYPE_REFERENCE, 0),
+
+ {{"_PS0", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PS1", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PS2", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PS3", METHOD_0ARGS,
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PSC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PSD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (5 Int) with count */
+ PACKAGE_INFO(ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0),
+
+ {{"_PSE", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PSL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_PSR", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PSS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each (6 Int) */
+ PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6, 0, 0, 0),
+
+ {{"_PSV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PSW", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PTC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (2 Buf) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0),
+
+ {{"_PTP", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_PTS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_PUR", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (2 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0),
+
+ {{"_PXM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_REG", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_REV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_RMV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_ROM", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_RTV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
/*
* For _S0_ through _S5_, the ACPI spec defines a return Package
@@ -458,111 +799,285 @@ static const union acpi_predefined_info predefined_names[] = {
* Allow this by making the objects "Variable-length length", but all elements
* must be Integers.
*/
- {{"_S0_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S1_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S2_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S3_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S4_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S5_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}},
-
- {{"_S1D", 0, ACPI_RTYPE_INTEGER}},
- {{"_S2D", 0, ACPI_RTYPE_INTEGER}},
- {{"_S3D", 0, ACPI_RTYPE_INTEGER}},
- {{"_S4D", 0, ACPI_RTYPE_INTEGER}},
- {{"_S0W", 0, ACPI_RTYPE_INTEGER}},
- {{"_S1W", 0, ACPI_RTYPE_INTEGER}},
- {{"_S2W", 0, ACPI_RTYPE_INTEGER}},
- {{"_S3W", 0, ACPI_RTYPE_INTEGER}},
- {{"_S4W", 0, ACPI_RTYPE_INTEGER}},
- {{"_SBS", 0, ACPI_RTYPE_INTEGER}},
- {{"_SCP", 0x13, 0}}, /* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */
- /* Note: the 3-arg definition may be removed for ACPI 4.0 */
- {{"_SDD", 1, 0}},
- {{"_SEG", 0, ACPI_RTYPE_INTEGER}},
- {{"_SHL", 1, ACPI_RTYPE_INTEGER}},
- {{"_SLI", 0, ACPI_RTYPE_BUFFER}},
- {{"_SPD", 1, ACPI_RTYPE_INTEGER}},
- {{"_SRS", 1, 0}},
- {{"_SRT", 1, ACPI_RTYPE_INTEGER}},
- {{"_SRV", 0, ACPI_RTYPE_INTEGER}}, /* See IPMI spec */
- {{"_SST", 1, 0}},
- {{"_STA", 0, ACPI_RTYPE_INTEGER}},
- {{"_STM", 3, 0}},
- {{"_STP", 2, ACPI_RTYPE_INTEGER}},
- {{"_STR", 0, ACPI_RTYPE_BUFFER}},
- {{"_STV", 2, ACPI_RTYPE_INTEGER}},
- {{"_SUB", 0, ACPI_RTYPE_STRING}},
- {{"_SUN", 0, ACPI_RTYPE_INTEGER}},
- {{"_SWS", 0, ACPI_RTYPE_INTEGER}},
- {{"_TC1", 0, ACPI_RTYPE_INTEGER}},
- {{"_TC2", 0, ACPI_RTYPE_INTEGER}},
- {{"_TDL", 0, ACPI_RTYPE_INTEGER}},
- {{"_TIP", 1, ACPI_RTYPE_INTEGER}},
- {{"_TIV", 1, ACPI_RTYPE_INTEGER}},
- {{"_TMP", 0, ACPI_RTYPE_INTEGER}},
- {{"_TPC", 0, ACPI_RTYPE_INTEGER}},
- {{"_TPT", 1, 0}},
- {{"_TRT", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 2 Ref/6 Int */
- {{{ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2, ACPI_RTYPE_INTEGER}, 6, 0}},
-
- {{"_TSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 5 Int with count */
- {{{ACPI_PTYPE2_COUNT,ACPI_RTYPE_INTEGER, 5,0}, 0,0}},
-
- {{"_TSP", 0, ACPI_RTYPE_INTEGER}},
- {{"_TSS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 5 Int */
- {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5,0}, 0,0}},
-
- {{"_TST", 0, ACPI_RTYPE_INTEGER}},
- {{"_TTS", 1, 0}},
- {{"_TZD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */
- {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}},
-
- {{"_TZM", 0, ACPI_RTYPE_REFERENCE}},
- {{"_TZP", 0, ACPI_RTYPE_INTEGER}},
- {{"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
- {{"_UPC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}},
-
- {{"_UPD", 0, ACPI_RTYPE_INTEGER}},
- {{"_UPP", 0, ACPI_RTYPE_INTEGER}},
- {{"_VPO", 0, ACPI_RTYPE_INTEGER}},
+ {{"_S0_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S1_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S2_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S3_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S4_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S5_", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0),
+
+ {{"_S1D", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S2D", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S3D", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S4D", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S0W", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S1W", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S2W", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S3W", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_S4W", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SBS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SCP", METHOD_1ARGS(ACPI_TYPE_INTEGER) | ARG_COUNT_IS_MINIMUM,
+ METHOD_NO_RETURN_VALUE}}, /* Acpi 1.0 allowed 1 integer arg. Acpi 3.0 expanded to 3 args. Allow both. */
+
+ {{"_SDD", METHOD_1ARGS(ACPI_TYPE_BUFFER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_SEG", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SHL", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SLI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_SPD", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SRS", METHOD_1ARGS(ACPI_TYPE_BUFFER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_SRT", METHOD_1ARGS(ACPI_TYPE_BUFFER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SRV", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}}, /* See IPMI spec */
+
+ {{"_SST", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_STA", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_STM",
+ METHOD_3ARGS(ACPI_TYPE_BUFFER, ACPI_TYPE_BUFFER, ACPI_TYPE_BUFFER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_STP", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_STR", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_STV", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SUB", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_STRING)}},
+
+ {{"_SUN", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_SWS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TC1", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TC2", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TDL", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TIP", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TIV", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TMP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TPC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TPT", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_TRT", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each 2 Ref/6 Int */
+ PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2, ACPI_RTYPE_INTEGER,
+ 6, 0),
+
+ {{"_TSD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each 5 Int with count */
+ PACKAGE_INFO(ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+
+ {{"_TSP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TSS", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each 5 Int */
+ PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+
+ {{"_TST", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_TTS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_NO_RETURN_VALUE}},
+
+ {{"_TZD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
+ PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+
+ {{"_TZM", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_REFERENCE)}},
+
+ {{"_TZP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_UID", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING)}},
+
+ {{"_UPC", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (4 Int) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0),
+
+ {{"_UPD", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_UPP", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
+ {{"_VPO", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
/* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */
- {{"_WAK", 1,
- ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE}},
- {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2,0}, 0,0}}, /* Fixed-length (2 Int), but is optional */
+ {{"_WAK", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER |
+ ACPI_RTYPE_PACKAGE)}},
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0), /* Fixed-length (2 Int), but is optional */
/* _WDG/_WED are MS extensions defined by "Windows Instrumentation" */
- {{"_WDG", 0, ACPI_RTYPE_BUFFER}},
- {{"_WED", 1,
- ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER}},
+ {{"_WDG", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
+ {{"_WED", METHOD_1ARGS(ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING |
+ ACPI_RTYPE_BUFFER)}},
- {{{0, 0, 0, 0}, 0, 0}} /* Table terminator */
+ PACKAGE_INFO(0, 0, 0, 0, 0, 0) /* Table terminator */
};
+#else
+extern const union acpi_predefined_info acpi_gbl_predefined_methods[];
+#endif
-#if 0
+#if (defined ACPI_CREATE_RESOURCE_TABLE && defined ACPI_APPLICATION)
+/******************************************************************************
+ *
+ * Predefined names for use in Resource Descriptors. These names do not
+ * appear in the global Predefined Name table (since these names never
+ * appear in actual AML byte code, only in the original ASL)
+ *
+ * Note: Used by iASL compiler and acpi_help utility only.
+ *
+ *****************************************************************************/
- /* This is an internally implemented control method, no need to check */
-{ {
-"_OSI", 1, ACPI_RTYPE_INTEGER}},
+const union acpi_predefined_info acpi_gbl_resource_names[] = {
+ {{"_ADR", WIDTH_16 | WIDTH_64, 0}},
+ {{"_ALN", WIDTH_8 | WIDTH_16 | WIDTH_32, 0}},
+ {{"_ASI", WIDTH_8, 0}},
+ {{"_ASZ", WIDTH_8, 0}},
+ {{"_ATT", WIDTH_64, 0}},
+ {{"_BAS", WIDTH_16 | WIDTH_32, 0}},
+ {{"_BM_", WIDTH_1, 0}},
+ {{"_DBT", WIDTH_16, 0}}, /* Acpi 5.0 */
+ {{"_DEC", WIDTH_1, 0}},
+ {{"_DMA", WIDTH_8, 0}},
+ {{"_DPL", WIDTH_1, 0}}, /* Acpi 5.0 */
+ {{"_DRS", WIDTH_16, 0}}, /* Acpi 5.0 */
+ {{"_END", WIDTH_1, 0}}, /* Acpi 5.0 */
+ {{"_FLC", WIDTH_2, 0}}, /* Acpi 5.0 */
+ {{"_GRA", WIDTH_ADDRESS, 0}},
+ {{"_HE_", WIDTH_1, 0}},
+ {{"_INT", WIDTH_16 | WIDTH_32, 0}},
+ {{"_IOR", WIDTH_2, 0}}, /* Acpi 5.0 */
+ {{"_LEN", WIDTH_8 | WIDTH_ADDRESS, 0}},
+ {{"_LIN", WIDTH_8, 0}}, /* Acpi 5.0 */
+ {{"_LL_", WIDTH_1, 0}},
+ {{"_MAF", WIDTH_1, 0}},
+ {{"_MAX", WIDTH_ADDRESS, 0}},
+ {{"_MEM", WIDTH_2, 0}},
+ {{"_MIF", WIDTH_1, 0}},
+ {{"_MIN", WIDTH_ADDRESS, 0}},
+ {{"_MOD", WIDTH_1, 0}}, /* Acpi 5.0 */
+ {{"_MTP", WIDTH_2, 0}},
+ {{"_PAR", WIDTH_8, 0}}, /* Acpi 5.0 */
+ {{"_PHA", WIDTH_1, 0}}, /* Acpi 5.0 */
+ {{"_PIN", WIDTH_16, 0}}, /* Acpi 5.0 */
+ {{"_PPI", WIDTH_8, 0}}, /* Acpi 5.0 */
+ {{"_POL", WIDTH_1 | WIDTH_2, 0}}, /* Acpi 5.0 */
+ {{"_RBO", WIDTH_8, 0}},
+ {{"_RBW", WIDTH_8, 0}},
+ {{"_RNG", WIDTH_1, 0}},
+ {{"_RT_", WIDTH_8, 0}}, /* Acpi 3.0 */
+ {{"_RW_", WIDTH_1, 0}},
+ {{"_RXL", WIDTH_16, 0}}, /* Acpi 5.0 */
+ {{"_SHR", WIDTH_2, 0}},
+ {{"_SIZ", WIDTH_2, 0}},
+ {{"_SLV", WIDTH_1, 0}}, /* Acpi 5.0 */
+ {{"_SPE", WIDTH_32, 0}}, /* Acpi 5.0 */
+ {{"_STB", WIDTH_2, 0}}, /* Acpi 5.0 */
+ {{"_TRA", WIDTH_ADDRESS, 0}},
+ {{"_TRS", WIDTH_1, 0}},
+ {{"_TSF", WIDTH_8, 0}}, /* Acpi 3.0 */
+ {{"_TTP", WIDTH_1, 0}},
+ {{"_TXL", WIDTH_16, 0}}, /* Acpi 5.0 */
+ {{"_TYP", WIDTH_2 | WIDTH_16, 0}},
+ {{"_VEN", VARIABLE_DATA, 0}}, /* Acpi 5.0 */
+ PACKAGE_INFO(0, 0, 0, 0, 0, 0) /* Table terminator */
+};
- /* TBD: */
- _PRT - currently ignore reversed entries. attempt to fix here?
- think about possibly fixing package elements like _BIF, etc.
+static const union acpi_predefined_info acpi_gbl_scope_names[] = {
+ {{"_GPE", 0, 0}},
+ {{"_PR_", 0, 0}},
+ {{"_SB_", 0, 0}},
+ {{"_SI_", 0, 0}},
+ {{"_TZ_", 0, 0}},
+ PACKAGE_INFO(0, 0, 0, 0, 0, 0) /* Table terminator */
+};
+#else
+extern const union acpi_predefined_info acpi_gbl_resource_names[];
#endif
#endif
-#endif
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 0082fa0a613..202f4f12d3e 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -113,9 +113,10 @@ struct acpi_pkg_info {
u32 num_packages;
};
+/* Object reference counts */
+
#define REF_INCREMENT (u16) 0
#define REF_DECREMENT (u16) 1
-#define REF_FORCE_DELETE (u16) 2
/* acpi_ut_dump_buffer */
@@ -421,7 +422,7 @@ acpi_ut_get_object_size(union acpi_operand_object *obj, acpi_size * obj_length);
*/
acpi_status acpi_ut_initialize_interfaces(void);
-void acpi_ut_interface_terminate(void);
+acpi_status acpi_ut_interface_terminate(void);
acpi_status acpi_ut_install_interface(acpi_string interface_name);
@@ -432,6 +433,26 @@ struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);
acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
/*
+ * utpredef - support for predefined names
+ */
+const union acpi_predefined_info *acpi_ut_get_next_predefined_method(const union
+ acpi_predefined_info
+ *this_name);
+
+const union acpi_predefined_info *acpi_ut_match_predefined_method(char *name);
+
+const union acpi_predefined_info *acpi_ut_match_resource_name(char *name);
+
+void
+acpi_ut_display_predefined_method(char *buffer,
+ const union acpi_predefined_info *this_name,
+ u8 multi_line);
+
+void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes);
+
+u32 acpi_ut_get_resource_bit_width(char *buffer, u16 types);
+
+/*
* utstate - Generic state creation/cache routines
*/
void
@@ -483,7 +504,8 @@ acpi_ut_short_divide(u64 in_dividend,
/*
* utmisc
*/
-const char *acpi_ut_validate_exception(acpi_status status);
+const struct acpi_exception_info *acpi_ut_validate_exception(acpi_status
+ status);
u8 acpi_ut_is_pci_root_bridge(char *id);
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index 4d8c992a51d..99778997c35 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -178,7 +178,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
if (!op) {
ACPI_ERROR((AE_INFO, "Null Op"));
- return_VALUE(TRUE);
+ return_UINT8(TRUE);
}
/*
@@ -210,7 +210,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
"At Method level, result of [%s] not used\n",
acpi_ps_get_opcode_name(op->common.
aml_opcode)));
- return_VALUE(FALSE);
+ return_UINT8(FALSE);
}
/* Get info on the parent. The root_op is AML_SCOPE */
@@ -219,7 +219,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode);
if (parent_info->class == AML_CLASS_UNKNOWN) {
ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op));
- return_VALUE(FALSE);
+ return_UINT8(FALSE);
}
/*
@@ -307,7 +307,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
acpi_ps_get_opcode_name(op->common.parent->common.
aml_opcode), op));
- return_VALUE(TRUE);
+ return_UINT8(TRUE);
result_not_used:
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -316,7 +316,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
acpi_ps_get_opcode_name(op->common.parent->common.
aml_opcode), op));
- return_VALUE(FALSE);
+ return_UINT8(FALSE);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 44f8325c2ba..e2199a94747 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -693,7 +693,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
default:
ACPI_ERROR((AE_INFO,
- "Unimplemented opcode, class=0x%X type=0x%X Opcode=-0x%X Op=%p",
+ "Unimplemented opcode, class=0x%X type=0x%X Opcode=0x%X Op=%p",
op_class, op_type, op->common.aml_opcode,
op));
diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index b8ea0b26cde..83cd45f4a87 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -257,6 +257,8 @@ u32 acpi_ev_fixed_event_detect(void)
*
* DESCRIPTION: Clears the status bit for the requested event, calls the
* handler that previously registered for the event.
+ * NOTE: If there is no handler for the event, the event is
+ * disabled to prevent further interrupts.
*
******************************************************************************/
@@ -271,17 +273,17 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event)
status_register_id, ACPI_CLEAR_STATUS);
/*
- * Make sure we've got a handler. If not, report an error. The event is
- * disabled to prevent further interrupts.
+ * Make sure that a handler exists. If not, report an error
+ * and disable the event to prevent further interrupts.
*/
- if (NULL == acpi_gbl_fixed_event_handlers[event].handler) {
+ if (!acpi_gbl_fixed_event_handlers[event].handler) {
(void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
enable_register_id,
ACPI_DISABLE_EVENT);
ACPI_ERROR((AE_INFO,
- "No installed handler for fixed event [0x%08X]",
- event));
+ "No installed handler for fixed event - %s (%u), disabling",
+ acpi_ut_get_event_name(event), event));
return (ACPI_INTERRUPT_NOT_HANDLED);
}
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index b9adb9a7ed8..a493b528f8f 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -707,7 +707,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to clear GPE%02X", gpe_number));
- return_VALUE(ACPI_INTERRUPT_NOT_HANDLED);
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
}
}
@@ -724,7 +724,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Unable to disable GPE%02X", gpe_number));
- return_VALUE(ACPI_INTERRUPT_NOT_HANDLED);
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
}
/*
@@ -784,7 +784,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
break;
}
- return_VALUE(ACPI_INTERRUPT_HANDLED);
+ return_UINT32(ACPI_INTERRUPT_HANDLED);
}
#endif /* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index f4b43bede01..b905acf7aac 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -89,7 +89,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
*/
interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
- return_VALUE(interrupt_handled);
+ return_UINT32(interrupt_handled);
}
/*******************************************************************************
@@ -120,7 +120,7 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
- return_VALUE(interrupt_handled);
+ return_UINT32(interrupt_handled);
}
/******************************************************************************
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index ddffd684791..ca5fba99c33 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -467,9 +467,9 @@ acpi_install_fixed_event_handler(u32 event,
return_ACPI_STATUS(status);
}
- /* Don't allow two handlers. */
+ /* Do not allow multiple handlers */
- if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
+ if (acpi_gbl_fixed_event_handlers[event].handler) {
status = AE_ALREADY_EXISTS;
goto cleanup;
}
@@ -483,8 +483,9 @@ acpi_install_fixed_event_handler(u32 event,
if (ACPI_SUCCESS(status))
status = acpi_enable_event(event, 0);
if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "Could not enable fixed event 0x%X",
- event));
+ ACPI_WARNING((AE_INFO,
+ "Could not enable fixed event - %s (%u)",
+ acpi_ut_get_event_name(event), event));
/* Remove the handler */
@@ -492,7 +493,8 @@ acpi_install_fixed_event_handler(u32 event,
acpi_gbl_fixed_event_handlers[event].context = NULL;
} else {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Enabled fixed event %X, Handler=%p\n", event,
+ "Enabled fixed event %s (%X), Handler=%p\n",
+ acpi_ut_get_event_name(event), event,
handler));
}
@@ -544,11 +546,12 @@ acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
if (ACPI_FAILURE(status)) {
ACPI_WARNING((AE_INFO,
- "Could not write to fixed event enable register 0x%X",
- event));
+ "Could not disable fixed event - %s (%u)",
+ acpi_ut_get_event_name(event), event));
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
- event));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Disabled fixed event - %s (%X)\n",
+ acpi_ut_get_event_name(event), event));
}
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index d6e4e42316d..7039606a0ba 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -74,6 +74,12 @@ acpi_status acpi_enable(void)
return_ACPI_STATUS(AE_NO_ACPI_TABLES);
}
+ /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
/* Check current mode */
if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
@@ -126,6 +132,12 @@ acpi_status acpi_disable(void)
ACPI_FUNCTION_TRACE(acpi_disable);
+ /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) {
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
"System is already in legacy (non-ACPI) mode\n"));
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index e491e46f17d..b0838a4ea53 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -257,7 +257,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
union acpi_operand_object *return_desc = NULL;
u64 index;
acpi_status status = AE_OK;
- acpi_size length;
+ acpi_size length = 0;
ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R,
acpi_ps_get_opcode_name(walk_state->opcode));
@@ -320,7 +320,6 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
* NOTE: A length of zero is ok, and will create a zero-length, null
* terminated string.
*/
- length = 0;
while ((length < operand[0]->buffer.length) &&
(length < operand[1]->integer.value) &&
(operand[0]->buffer.pointer[length])) {
@@ -376,6 +375,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
case ACPI_TYPE_STRING:
if (index >= operand[0]->string.length) {
+ length = operand[0]->string.length;
status = AE_AML_STRING_LIMIT;
}
@@ -386,6 +386,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
case ACPI_TYPE_BUFFER:
if (index >= operand[0]->buffer.length) {
+ length = operand[0]->buffer.length;
status = AE_AML_BUFFER_LIMIT;
}
@@ -396,6 +397,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
case ACPI_TYPE_PACKAGE:
if (index >= operand[0]->package.count) {
+ length = operand[0]->package.count;
status = AE_AML_PACKAGE_LIMIT;
}
@@ -414,8 +416,9 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
- "Index (0x%8.8X%8.8X) is beyond end of object",
- ACPI_FORMAT_UINT64(index)));
+ "Index (0x%X%8.8X) is beyond end of object (length 0x%X)",
+ ACPI_FORMAT_UINT64(index),
+ (u32)length));
goto cleanup;
}
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index d6eab81f54f..6b728aef2dc 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -276,7 +276,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
/* Invalid field access type */
ACPI_ERROR((AE_INFO, "Unknown field access type 0x%X", access));
- return_VALUE(0);
+ return_UINT32(0);
}
if (obj_desc->common.type == ACPI_TYPE_BUFFER_FIELD) {
@@ -289,7 +289,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
}
*return_byte_alignment = byte_alignment;
- return_VALUE(bit_length);
+ return_UINT32(bit_length);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index b205cbb4b50..99dc7b287d5 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -340,7 +340,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base)
/* u64 is unsigned, so we don't worry about a '-' prefix */
if (value == 0) {
- return_VALUE(1);
+ return_UINT32(1);
}
current_value = value;
@@ -354,7 +354,7 @@ static u32 acpi_ex_digits_needed(u64 value, u32 base)
num_digits++;
}
- return_VALUE(num_digits);
+ return_UINT32(num_digits);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index deb3f61e2bd..579c3a53ac8 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -66,6 +66,12 @@ acpi_status acpi_hw_set_mode(u32 mode)
ACPI_FUNCTION_TRACE(hw_set_mode);
+ /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
/*
* ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
* system does not support mode transition.
@@ -146,23 +152,29 @@ u32 acpi_hw_get_mode(void)
ACPI_FUNCTION_TRACE(hw_get_mode);
+ /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_UINT32(ACPI_SYS_MODE_ACPI);
+ }
+
/*
* ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
* system does not support mode transition.
*/
if (!acpi_gbl_FADT.smi_command) {
- return_VALUE(ACPI_SYS_MODE_ACPI);
+ return_UINT32(ACPI_SYS_MODE_ACPI);
}
status = acpi_read_bit_register(ACPI_BITREG_SCI_ENABLE, &value);
if (ACPI_FAILURE(status)) {
- return_VALUE(ACPI_SYS_MODE_LEGACY);
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
}
if (value) {
- return_VALUE(ACPI_SYS_MODE_ACPI);
+ return_UINT32(ACPI_SYS_MODE_ACPI);
} else {
- return_VALUE(ACPI_SYS_MODE_LEGACY);
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
}
}
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
new file mode 100644
index 00000000000..8f79a9d2d50
--- /dev/null
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -0,0 +1,443 @@
+/******************************************************************************
+ *
+ * Module Name: nsconvert - Object conversions for objects returned by
+ * predefined methods
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2013, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+#include "acpredef.h"
+#include "amlresrc.h"
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsconvert")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_to_integer
+ *
+ * PARAMETERS: original_object - Object to be converted
+ * return_object - Where the new converted object is returned
+ *
+ * RETURN: Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object)
+{
+ union acpi_operand_object *new_object;
+ acpi_status status;
+ u64 value = 0;
+ u32 i;
+
+ switch (original_object->common.type) {
+ case ACPI_TYPE_STRING:
+
+ /* String-to-Integer conversion */
+
+ status = acpi_ut_strtoul64(original_object->string.pointer,
+ ACPI_ANY_BASE, &value);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
+
+ if (original_object->buffer.length > 8) {
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ /* Extract each buffer byte to create the integer */
+
+ for (i = 0; i < original_object->buffer.length; i++) {
+ value |=
+ ((u64)original_object->buffer.
+ pointer[i] << (i * 8));
+ }
+ break;
+
+ default:
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ new_object = acpi_ut_create_integer_object(value);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ *return_object = new_object;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_to_string
+ *
+ * PARAMETERS: original_object - Object to be converted
+ * return_object - Where the new converted object is returned
+ *
+ * RETURN: Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_convert_to_string(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object)
+{
+ union acpi_operand_object *new_object;
+ acpi_size length;
+ acpi_status status;
+
+ switch (original_object->common.type) {
+ case ACPI_TYPE_INTEGER:
+ /*
+ * Integer-to-String conversion. Commonly, convert
+ * an integer of value 0 to a NULL string. The last element of
+ * _BIF and _BIX packages occasionally need this fix.
+ */
+ if (original_object->integer.value == 0) {
+
+ /* Allocate a new NULL string object */
+
+ new_object = acpi_ut_create_string_object(0);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+ } else {
+ status =
+ acpi_ex_convert_to_string(original_object,
+ &new_object,
+ ACPI_IMPLICIT_CONVERT_HEX);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ /*
+ * Buffer-to-String conversion. Use a to_string
+ * conversion, no transform performed on the buffer data. The best
+ * example of this is the _BIF method, where the string data from
+ * the battery is often (incorrectly) returned as buffer object(s).
+ */
+ length = 0;
+ while ((length < original_object->buffer.length) &&
+ (original_object->buffer.pointer[length])) {
+ length++;
+ }
+
+ /* Allocate a new string object */
+
+ new_object = acpi_ut_create_string_object(length);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the raw buffer data with no transform. String is already NULL
+ * terminated at Length+1.
+ */
+ ACPI_MEMCPY(new_object->string.pointer,
+ original_object->buffer.pointer, length);
+ break;
+
+ default:
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ *return_object = new_object;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_to_buffer
+ *
+ * PARAMETERS: original_object - Object to be converted
+ * return_object - Where the new converted object is returned
+ *
+ * RETURN: Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object)
+{
+ union acpi_operand_object *new_object;
+ acpi_status status;
+ union acpi_operand_object **elements;
+ u32 *dword_buffer;
+ u32 count;
+ u32 i;
+
+ switch (original_object->common.type) {
+ case ACPI_TYPE_INTEGER:
+ /*
+ * Integer-to-Buffer conversion.
+ * Convert the Integer to a packed-byte buffer. _MAT and other
+ * objects need this sometimes, if a read has been performed on a
+ * Field object that is less than or equal to the global integer
+ * size (32 or 64 bits).
+ */
+ status =
+ acpi_ex_convert_to_buffer(original_object, &new_object);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ /* String-to-Buffer conversion. Simple data copy */
+
+ new_object =
+ acpi_ut_create_buffer_object(original_object->string.
+ length);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ ACPI_MEMCPY(new_object->buffer.pointer,
+ original_object->string.pointer,
+ original_object->string.length);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ /*
+ * This case is often seen for predefined names that must return a
+ * Buffer object with multiple DWORD integers within. For example,
+ * _FDE and _GTM. The Package can be converted to a Buffer.
+ */
+
+ /* All elements of the Package must be integers */
+
+ elements = original_object->package.elements;
+ count = original_object->package.count;
+
+ for (i = 0; i < count; i++) {
+ if ((!*elements) ||
+ ((*elements)->common.type != ACPI_TYPE_INTEGER)) {
+ return (AE_AML_OPERAND_TYPE);
+ }
+ elements++;
+ }
+
+ /* Create the new buffer object to replace the Package */
+
+ new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count));
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Copy the package elements (integers) to the buffer as DWORDs */
+
+ elements = original_object->package.elements;
+ dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer);
+
+ for (i = 0; i < count; i++) {
+ *dword_buffer = (u32)(*elements)->integer.value;
+ dword_buffer++;
+ elements++;
+ }
+ break;
+
+ default:
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ *return_object = new_object;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_to_unicode
+ *
+ * PARAMETERS: original_object - ASCII String Object to be converted
+ * return_object - Where the new converted object is returned
+ *
+ * RETURN: Status. AE_OK if conversion was successful.
+ *
+ * DESCRIPTION: Attempt to convert a String object to a Unicode string Buffer.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object)
+{
+ union acpi_operand_object *new_object;
+ char *ascii_string;
+ u16 *unicode_buffer;
+ u32 unicode_length;
+ u32 i;
+
+ if (!original_object) {
+ return (AE_OK);
+ }
+
+ /* If a Buffer was returned, it must be at least two bytes long */
+
+ if (original_object->common.type == ACPI_TYPE_BUFFER) {
+ if (original_object->buffer.length < 2) {
+ return (AE_AML_OPERAND_VALUE);
+ }
+
+ *return_object = NULL;
+ return (AE_OK);
+ }
+
+ /*
+ * The original object is an ASCII string. Convert this string to
+ * a unicode buffer.
+ */
+ ascii_string = original_object->string.pointer;
+ unicode_length = (original_object->string.length * 2) + 2;
+
+ /* Create a new buffer object for the Unicode data */
+
+ new_object = acpi_ut_create_buffer_object(unicode_length);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ unicode_buffer = ACPI_CAST_PTR(u16, new_object->buffer.pointer);
+
+ /* Convert ASCII to Unicode */
+
+ for (i = 0; i < original_object->string.length; i++) {
+ unicode_buffer[i] = (u16)ascii_string[i];
+ }
+
+ *return_object = new_object;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_to_resource
+ *
+ * PARAMETERS: original_object - Object to be converted
+ * return_object - Where the new converted object is returned
+ *
+ * RETURN: Status. AE_OK if conversion was successful
+ *
+ * DESCRIPTION: Attempt to convert a Integer object to a resource_template
+ * Buffer.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
+ union acpi_operand_object **return_object)
+{
+ union acpi_operand_object *new_object;
+ u8 *buffer;
+
+ /*
+ * We can fix the following cases for an expected resource template:
+ * 1. No return value (interpreter slack mode is disabled)
+ * 2. A "Return (Zero)" statement
+ * 3. A "Return empty buffer" statement
+ *
+ * We will return a buffer containing a single end_tag
+ * resource descriptor.
+ */
+ if (original_object) {
+ switch (original_object->common.type) {
+ case ACPI_TYPE_INTEGER:
+
+ /* We can only repair an Integer==0 */
+
+ if (original_object->integer.value) {
+ return (AE_AML_OPERAND_TYPE);
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ if (original_object->buffer.length) {
+
+ /* Additional checks can be added in the future */
+
+ *return_object = NULL;
+ return (AE_OK);
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+ default:
+
+ return (AE_AML_OPERAND_TYPE);
+ }
+ }
+
+ /* Create the new buffer object for the resource descriptor */
+
+ new_object = acpi_ut_create_buffer_object(2);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ buffer = ACPI_CAST_PTR(u8, new_object->buffer.pointer);
+
+ /* Initialize the Buffer with a single end_tag descriptor */
+
+ buffer[0] = (ACPI_RESOURCE_NAME_END_TAG | ASL_RDESC_END_TAG_SIZE);
+ buffer[1] = 0x00;
+
+ *return_object = new_object;
+ return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 1538f3eb2a8..b61db69d567 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -98,17 +98,21 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
info->return_object = NULL;
info->param_count = 0;
- /*
- * Get the actual namespace node for the target object. Handles these cases:
- *
- * 1) Null node, Pathname (absolute path)
- * 2) Node, Pathname (path relative to Node)
- * 3) Node, Null Pathname
- */
- status = acpi_ns_get_node(info->prefix_node, info->pathname,
- ACPI_NS_NO_UPSEARCH, &info->resolved_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ if (!info->resolved_node) {
+ /*
+ * Get the actual namespace node for the target object if we need to.
+ * Handles these cases:
+ *
+ * 1) Null node, Pathname (absolute path)
+ * 2) Node, Pathname (path relative to Node)
+ * 3) Node, Null Pathname
+ */
+ status = acpi_ns_get_node(info->prefix_node, info->pathname,
+ ACPI_NS_NO_UPSEARCH,
+ &info->resolved_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
}
/*
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 224c3005340..8a52916148c 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -76,19 +76,7 @@ static acpi_status
acpi_ns_check_reference(struct acpi_predefined_data *data,
union acpi_operand_object *return_object);
-static void acpi_ns_get_expected_types(char *buffer, u32 expected_btypes);
-
-/*
- * Names for the types that can be returned by the predefined objects.
- * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
- */
-static const char *acpi_rtype_names[] = {
- "/Integer",
- "/String",
- "/Buffer",
- "/Package",
- "/Reference",
-};
+static u32 acpi_ns_get_bitmapped_type(union acpi_operand_object *return_object);
/*******************************************************************************
*
@@ -112,7 +100,6 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
acpi_status return_status,
union acpi_operand_object **return_object_ptr)
{
- union acpi_operand_object *return_object = *return_object_ptr;
acpi_status status = AE_OK;
const union acpi_predefined_info *predefined;
char *pathname;
@@ -120,7 +107,7 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
/* Match the name for this method/object against the predefined list */
- predefined = acpi_ns_check_for_predefined_name(node);
+ predefined = acpi_ut_match_predefined_method(node->name.ascii);
/* Get the full pathname to the object, for use in warning messages */
@@ -152,25 +139,6 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
}
/*
- * If there is no return value, check if we require a return value for
- * this predefined name. Either one return value is expected, or none,
- * for both methods and other objects.
- *
- * Exit now if there is no return object. Warning if one was expected.
- */
- if (!return_object) {
- if ((predefined->info.expected_btypes) &&
- (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) {
- ACPI_WARN_PREDEFINED((AE_INFO, pathname,
- ACPI_WARN_ALWAYS,
- "Missing expected return value"));
-
- status = AE_AML_NO_RETURN_VALUE;
- }
- goto cleanup;
- }
-
- /*
* Return value validation and possible repair.
*
* 1) Don't perform return value validation/repair if this feature
@@ -310,8 +278,10 @@ acpi_ns_check_parameter_count(char *pathname,
* Validate the user-supplied parameter count.
* Allow two different legal argument counts (_SCP, etc.)
*/
- required_params_current = predefined->info.param_count & 0x0F;
- required_params_old = predefined->info.param_count >> 4;
+ required_params_current =
+ predefined->info.argument_list & METHOD_ARG_MASK;
+ required_params_old =
+ predefined->info.argument_list >> METHOD_ARG_BIT_WIDTH;
if (user_param_count != ACPI_UINT32_MAX) {
if ((user_param_count != required_params_current) &&
@@ -340,52 +310,6 @@ acpi_ns_check_parameter_count(char *pathname,
/*******************************************************************************
*
- * FUNCTION: acpi_ns_check_for_predefined_name
- *
- * PARAMETERS: node - Namespace node for the method/object
- *
- * RETURN: Pointer to entry in predefined table. NULL indicates not found.
- *
- * DESCRIPTION: Check an object name against the predefined object list.
- *
- ******************************************************************************/
-
-const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
- acpi_namespace_node
- *node)
-{
- const union acpi_predefined_info *this_name;
-
- /* Quick check for a predefined name, first character must be underscore */
-
- if (node->name.ascii[0] != '_') {
- return (NULL);
- }
-
- /* Search info table for a predefined method/object name */
-
- this_name = predefined_names;
- while (this_name->info.name[0]) {
- if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) {
- return (this_name);
- }
-
- /*
- * Skip next entry in the table if this name returns a Package
- * (next entry contains the package info)
- */
- if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
- this_name++;
- }
-
- this_name++;
- }
-
- return (NULL); /* Not found */
-}
-
-/*******************************************************************************
- *
* FUNCTION: acpi_ns_check_object_type
*
* PARAMETERS: data - Pointer to validation data structure
@@ -410,28 +334,12 @@ acpi_ns_check_object_type(struct acpi_predefined_data *data,
{
union acpi_operand_object *return_object = *return_object_ptr;
acpi_status status = AE_OK;
- u32 return_btype;
char type_buffer[48]; /* Room for 5 types */
- /*
- * If we get a NULL return_object here, it is a NULL package element.
- * Since all extraneous NULL package elements were removed earlier by a
- * call to acpi_ns_remove_null_elements, this is an unexpected NULL element.
- * We will attempt to repair it.
- */
- if (!return_object) {
- status = acpi_ns_repair_null_element(data, expected_btypes,
- package_index,
- return_object_ptr);
- if (ACPI_SUCCESS(status)) {
- return (AE_OK); /* Repair was successful */
- }
- goto type_error_exit;
- }
-
/* A Namespace node should not get here, but make sure */
- if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
+ if (return_object &&
+ ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
"Invalid return type - Found a Namespace node [%4.4s] type %s",
return_object->node.name.ascii,
@@ -448,59 +356,31 @@ acpi_ns_check_object_type(struct acpi_predefined_data *data,
* from all of the predefined names (including elements of returned
* packages)
*/
- switch (return_object->common.type) {
- case ACPI_TYPE_INTEGER:
- return_btype = ACPI_RTYPE_INTEGER;
- break;
-
- case ACPI_TYPE_BUFFER:
- return_btype = ACPI_RTYPE_BUFFER;
- break;
-
- case ACPI_TYPE_STRING:
- return_btype = ACPI_RTYPE_STRING;
- break;
+ data->return_btype = acpi_ns_get_bitmapped_type(return_object);
+ if (data->return_btype == ACPI_RTYPE_ANY) {
- case ACPI_TYPE_PACKAGE:
- return_btype = ACPI_RTYPE_PACKAGE;
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
- return_btype = ACPI_RTYPE_REFERENCE;
- break;
-
- default:
/* Not one of the supported objects, must be incorrect */
-
goto type_error_exit;
}
- /* Is the object one of the expected types? */
-
- if (return_btype & expected_btypes) {
-
- /* For reference objects, check that the reference type is correct */
-
- if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) {
- status = acpi_ns_check_reference(data, return_object);
- }
+ /* For reference objects, check that the reference type is correct */
+ if ((data->return_btype & expected_btypes) == ACPI_RTYPE_REFERENCE) {
+ status = acpi_ns_check_reference(data, return_object);
return (status);
}
- /* Type mismatch -- attempt repair of the returned object */
+ /* Attempt simple repair of the returned object if necessary */
- status = acpi_ns_repair_object(data, expected_btypes,
+ status = acpi_ns_simple_repair(data, expected_btypes,
package_index, return_object_ptr);
- if (ACPI_SUCCESS(status)) {
- return (AE_OK); /* Repair was successful */
- }
+ return (status);
type_error_exit:
/* Create a string with all expected types for this predefined object */
- acpi_ns_get_expected_types(type_buffer, expected_btypes);
+ acpi_ut_get_expected_return_types(type_buffer, expected_btypes);
if (package_index == ACPI_NOT_PACKAGE_ELEMENT) {
ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
@@ -558,36 +438,55 @@ acpi_ns_check_reference(struct acpi_predefined_data *data,
/*******************************************************************************
*
- * FUNCTION: acpi_ns_get_expected_types
+ * FUNCTION: acpi_ns_get_bitmapped_type
*
- * PARAMETERS: buffer - Pointer to where the string is returned
- * expected_btypes - Bitmap of expected return type(s)
+ * PARAMETERS: return_object - Object returned from method/obj evaluation
*
- * RETURN: Buffer is populated with type names.
+ * RETURN: Object return type. ACPI_RTYPE_ANY indicates that the object
+ * type is not supported. ACPI_RTYPE_NONE indicates that no
+ * object was returned (return_object is NULL).
*
- * DESCRIPTION: Translate the expected types bitmap into a string of ascii
- * names of expected types, for use in warning messages.
+ * DESCRIPTION: Convert object type into a bitmapped object return type.
*
******************************************************************************/
-static void acpi_ns_get_expected_types(char *buffer, u32 expected_btypes)
+static u32 acpi_ns_get_bitmapped_type(union acpi_operand_object *return_object)
{
- u32 this_rtype;
- u32 i;
- u32 j;
+ u32 return_btype;
- j = 1;
- buffer[0] = 0;
- this_rtype = ACPI_RTYPE_INTEGER;
+ if (!return_object) {
+ return (ACPI_RTYPE_NONE);
+ }
- for (i = 0; i < ACPI_NUM_RTYPES; i++) {
+ /* Map acpi_object_type to internal bitmapped type */
- /* If one of the expected types, concatenate the name of this type */
+ switch (return_object->common.type) {
+ case ACPI_TYPE_INTEGER:
+ return_btype = ACPI_RTYPE_INTEGER;
+ break;
- if (expected_btypes & this_rtype) {
- ACPI_STRCAT(buffer, &acpi_rtype_names[i][j]);
- j = 0; /* Use name separator from now on */
- }
- this_rtype <<= 1; /* Next Rtype */
+ case ACPI_TYPE_BUFFER:
+ return_btype = ACPI_RTYPE_BUFFER;
+ break;
+
+ case ACPI_TYPE_STRING:
+ return_btype = ACPI_RTYPE_STRING;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ return_btype = ACPI_RTYPE_PACKAGE;
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ return_btype = ACPI_RTYPE_REFERENCE;
+ break;
+
+ default:
+ /* Not one of the supported objects, must be incorrect */
+
+ return_btype = ACPI_RTYPE_ANY;
+ break;
}
+
+ return (return_btype);
}
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index a40155467d2..77cdd539de1 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -112,9 +112,15 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
elements = return_object->package.elements;
count = return_object->package.count;
- /* The package must have at least one element, else invalid */
-
+ /*
+ * Most packages must have at least one element. The only exception
+ * is the variable-length package (ACPI_PTYPE1_VAR).
+ */
if (!count) {
+ if (package->ret_info.type == ACPI_PTYPE1_VAR) {
+ return (AE_OK);
+ }
+
ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
"Return Package has no elements (empty)"));
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 9e833353c06..18f02e4ece0 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -46,6 +46,7 @@
#include "acnamesp.h"
#include "acinterp.h"
#include "acpredef.h"
+#include "amlresrc.h"
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsrepair")
@@ -71,6 +72,11 @@ ACPI_MODULE_NAME("nsrepair")
* Buffer -> String
* Buffer -> Package of Integers
* Package -> Package of one Package
+ *
+ * Additional conversions that are available:
+ * Convert a null return or zero return value to an end_tag descriptor
+ * Convert an ASCII string to a Unicode buffer
+ *
* An incorrect standalone object is wrapped with required outer package
*
* Additional possible repairs:
@@ -78,21 +84,51 @@ ACPI_MODULE_NAME("nsrepair")
*
******************************************************************************/
/* Local prototypes */
-static acpi_status
-acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object);
-
-static acpi_status
-acpi_ns_convert_to_string(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object);
+static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
+ acpi_namespace_node
+ *node,
+ u32
+ return_btype,
+ u32
+ package_index);
-static acpi_status
-acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object);
+/*
+ * Special but simple repairs for some names.
+ *
+ * 2nd argument: Unexpected types that can be repaired
+ */
+static const struct acpi_simple_repair_info acpi_object_repair_info[] = {
+ /* Resource descriptor conversions */
+
+ {"_CRS",
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER |
+ ACPI_RTYPE_NONE,
+ ACPI_NOT_PACKAGE_ELEMENT,
+ acpi_ns_convert_to_resource},
+ {"_DMA",
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER |
+ ACPI_RTYPE_NONE,
+ ACPI_NOT_PACKAGE_ELEMENT,
+ acpi_ns_convert_to_resource},
+ {"_PRS",
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER |
+ ACPI_RTYPE_NONE,
+ ACPI_NOT_PACKAGE_ELEMENT,
+ acpi_ns_convert_to_resource},
+
+ /* Unicode conversions */
+
+ {"_MLS", ACPI_RTYPE_STRING, 1,
+ acpi_ns_convert_to_unicode},
+ {"_STR", ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER,
+ ACPI_NOT_PACKAGE_ELEMENT,
+ acpi_ns_convert_to_unicode},
+ {{0, 0, 0, 0}, 0, 0, NULL} /* Table terminator */
+};
/*******************************************************************************
*
- * FUNCTION: acpi_ns_repair_object
+ * FUNCTION: acpi_ns_simple_repair
*
* PARAMETERS: data - Pointer to validation data structure
* expected_btypes - Object types expected
@@ -110,16 +146,54 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
******************************************************************************/
acpi_status
-acpi_ns_repair_object(struct acpi_predefined_data *data,
+acpi_ns_simple_repair(struct acpi_predefined_data *data,
u32 expected_btypes,
u32 package_index,
union acpi_operand_object **return_object_ptr)
{
union acpi_operand_object *return_object = *return_object_ptr;
- union acpi_operand_object *new_object;
+ union acpi_operand_object *new_object = NULL;
acpi_status status;
+ const struct acpi_simple_repair_info *predefined;
+
+ ACPI_FUNCTION_NAME(ns_simple_repair);
+
+ /*
+ * Special repairs for certain names that are in the repair table.
+ * Check if this name is in the list of repairable names.
+ */
+ predefined = acpi_ns_match_simple_repair(data->node,
+ data->return_btype,
+ package_index);
+ if (predefined) {
+ if (!return_object) {
+ ACPI_WARN_PREDEFINED((AE_INFO, data->pathname,
+ ACPI_WARN_ALWAYS,
+ "Missing expected return value"));
+ }
+
+ status =
+ predefined->object_converter(return_object, &new_object);
+ if (ACPI_FAILURE(status)) {
+
+ /* A fatal error occurred during a conversion */
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During return object analysis"));
+ return (status);
+ }
+ if (new_object) {
+ goto object_repaired;
+ }
+ }
- ACPI_FUNCTION_NAME(ns_repair_object);
+ /*
+ * Do not perform simple object repair unless the return type is not
+ * expected.
+ */
+ if (data->return_btype & expected_btypes) {
+ return (AE_OK);
+ }
/*
* At this point, we know that the type of the returned object was not
@@ -127,6 +201,24 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
* repair the object by converting it to one of the expected object
* types for this predefined name.
*/
+
+ /*
+ * If there is no return value, check if we require a return value for
+ * this predefined name. Either one return value is expected, or none,
+ * for both methods and other objects.
+ *
+ * Exit now if there is no return object. Warning if one was expected.
+ */
+ if (!return_object) {
+ if (expected_btypes && (!(expected_btypes & ACPI_RTYPE_NONE))) {
+ ACPI_WARN_PREDEFINED((AE_INFO, data->pathname,
+ ACPI_WARN_ALWAYS,
+ "Missing expected return value"));
+
+ return (AE_AML_NO_RETURN_VALUE);
+ }
+ }
+
if (expected_btypes & ACPI_RTYPE_INTEGER) {
status = acpi_ns_convert_to_integer(return_object, &new_object);
if (ACPI_SUCCESS(status)) {
@@ -216,254 +308,51 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
return (AE_OK);
}
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_convert_to_integer
- *
- * PARAMETERS: original_object - Object to be converted
- * return_object - Where the new converted object is returned
- *
- * RETURN: Status. AE_OK if conversion was successful.
- *
- * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object)
-{
- union acpi_operand_object *new_object;
- acpi_status status;
- u64 value = 0;
- u32 i;
-
- switch (original_object->common.type) {
- case ACPI_TYPE_STRING:
-
- /* String-to-Integer conversion */
-
- status = acpi_ut_strtoul64(original_object->string.pointer,
- ACPI_ANY_BASE, &value);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */
-
- if (original_object->buffer.length > 8) {
- return (AE_AML_OPERAND_TYPE);
- }
-
- /* Extract each buffer byte to create the integer */
-
- for (i = 0; i < original_object->buffer.length; i++) {
- value |=
- ((u64) original_object->buffer.
- pointer[i] << (i * 8));
- }
- break;
-
- default:
- return (AE_AML_OPERAND_TYPE);
- }
-
- new_object = acpi_ut_create_integer_object(value);
- if (!new_object) {
- return (AE_NO_MEMORY);
- }
-
- *return_object = new_object;
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_convert_to_string
- *
- * PARAMETERS: original_object - Object to be converted
- * return_object - Where the new converted object is returned
- *
- * RETURN: Status. AE_OK if conversion was successful.
- *
- * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_convert_to_string(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object)
-{
- union acpi_operand_object *new_object;
- acpi_size length;
- acpi_status status;
-
- switch (original_object->common.type) {
- case ACPI_TYPE_INTEGER:
- /*
- * Integer-to-String conversion. Commonly, convert
- * an integer of value 0 to a NULL string. The last element of
- * _BIF and _BIX packages occasionally need this fix.
- */
- if (original_object->integer.value == 0) {
-
- /* Allocate a new NULL string object */
-
- new_object = acpi_ut_create_string_object(0);
- if (!new_object) {
- return (AE_NO_MEMORY);
- }
- } else {
- status =
- acpi_ex_convert_to_string(original_object,
- &new_object,
- ACPI_IMPLICIT_CONVERT_HEX);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
- break;
-
- case ACPI_TYPE_BUFFER:
- /*
- * Buffer-to-String conversion. Use a to_string
- * conversion, no transform performed on the buffer data. The best
- * example of this is the _BIF method, where the string data from
- * the battery is often (incorrectly) returned as buffer object(s).
- */
- length = 0;
- while ((length < original_object->buffer.length) &&
- (original_object->buffer.pointer[length])) {
- length++;
- }
-
- /* Allocate a new string object */
-
- new_object = acpi_ut_create_string_object(length);
- if (!new_object) {
- return (AE_NO_MEMORY);
- }
-
- /*
- * Copy the raw buffer data with no transform. String is already NULL
- * terminated at Length+1.
- */
- ACPI_MEMCPY(new_object->string.pointer,
- original_object->buffer.pointer, length);
- break;
-
- default:
- return (AE_AML_OPERAND_TYPE);
- }
-
- *return_object = new_object;
- return (AE_OK);
-}
-
-/*******************************************************************************
+/******************************************************************************
*
- * FUNCTION: acpi_ns_convert_to_buffer
+ * FUNCTION: acpi_ns_match_simple_repair
*
- * PARAMETERS: original_object - Object to be converted
- * return_object - Where the new converted object is returned
+ * PARAMETERS: node - Namespace node for the method/object
+ * return_btype - Object type that was returned
+ * package_index - Index of object within parent package (if
+ * applicable - ACPI_NOT_PACKAGE_ELEMENT
+ * otherwise)
*
- * RETURN: Status. AE_OK if conversion was successful.
+ * RETURN: Pointer to entry in repair table. NULL indicates not found.
*
- * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer.
+ * DESCRIPTION: Check an object name against the repairable object list.
*
- ******************************************************************************/
+ *****************************************************************************/
-static acpi_status
-acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
- union acpi_operand_object **return_object)
+static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
+ acpi_namespace_node
+ *node,
+ u32
+ return_btype,
+ u32
+ package_index)
{
- union acpi_operand_object *new_object;
- acpi_status status;
- union acpi_operand_object **elements;
- u32 *dword_buffer;
- u32 count;
- u32 i;
+ const struct acpi_simple_repair_info *this_name;
- switch (original_object->common.type) {
- case ACPI_TYPE_INTEGER:
- /*
- * Integer-to-Buffer conversion.
- * Convert the Integer to a packed-byte buffer. _MAT and other
- * objects need this sometimes, if a read has been performed on a
- * Field object that is less than or equal to the global integer
- * size (32 or 64 bits).
- */
- status =
- acpi_ex_convert_to_buffer(original_object, &new_object);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
+ /* Search info table for a repairable predefined method/object name */
- case ACPI_TYPE_STRING:
+ this_name = acpi_object_repair_info;
+ while (this_name->object_converter) {
+ if (ACPI_COMPARE_NAME(node->name.ascii, this_name->name)) {
- /* String-to-Buffer conversion. Simple data copy */
-
- new_object =
- acpi_ut_create_buffer_object(original_object->string.
- length);
- if (!new_object) {
- return (AE_NO_MEMORY);
- }
+ /* Check if we can actually repair this name/type combination */
- ACPI_MEMCPY(new_object->buffer.pointer,
- original_object->string.pointer,
- original_object->string.length);
- break;
-
- case ACPI_TYPE_PACKAGE:
- /*
- * This case is often seen for predefined names that must return a
- * Buffer object with multiple DWORD integers within. For example,
- * _FDE and _GTM. The Package can be converted to a Buffer.
- */
-
- /* All elements of the Package must be integers */
-
- elements = original_object->package.elements;
- count = original_object->package.count;
-
- for (i = 0; i < count; i++) {
- if ((!*elements) ||
- ((*elements)->common.type != ACPI_TYPE_INTEGER)) {
- return (AE_AML_OPERAND_TYPE);
+ if ((return_btype & this_name->unexpected_btypes) &&
+ (package_index == this_name->package_index)) {
+ return (this_name);
}
- elements++;
- }
-
- /* Create the new buffer object to replace the Package */
- new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count));
- if (!new_object) {
- return (AE_NO_MEMORY);
+ return (NULL);
}
-
- /* Copy the package elements (integers) to the buffer as DWORDs */
-
- elements = original_object->package.elements;
- dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer);
-
- for (i = 0; i < count; i++) {
- *dword_buffer = (u32) (*elements)->integer.value;
- dword_buffer++;
- elements++;
- }
- break;
-
- default:
- return (AE_AML_OPERAND_TYPE);
+ this_name++;
}
- *return_object = new_object;
- return (AE_OK);
+ return (NULL); /* Name was not found in the repair table */
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index ba4d98287c6..149e9b9c2c1 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -66,9 +66,9 @@ typedef struct acpi_repair_info {
/* Local prototypes */
-static const struct acpi_repair_info *acpi_ns_match_repairable_name(struct
- acpi_namespace_node
- *node);
+static const struct acpi_repair_info *acpi_ns_match_complex_repair(struct
+ acpi_namespace_node
+ *node);
static acpi_status
acpi_ns_repair_ALR(struct acpi_predefined_data *data,
@@ -175,7 +175,7 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data,
/* Check if this name is in the list of repairable names */
- predefined = acpi_ns_match_repairable_name(node);
+ predefined = acpi_ns_match_complex_repair(node);
if (!predefined) {
return (validate_status);
}
@@ -186,7 +186,7 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data,
/******************************************************************************
*
- * FUNCTION: acpi_ns_match_repairable_name
+ * FUNCTION: acpi_ns_match_complex_repair
*
* PARAMETERS: node - Namespace node for the method/object
*
@@ -196,9 +196,9 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data,
*
*****************************************************************************/
-static const struct acpi_repair_info *acpi_ns_match_repairable_name(struct
- acpi_namespace_node
- *node)
+static const struct acpi_repair_info *acpi_ns_match_complex_repair(struct
+ acpi_namespace_node
+ *node)
{
const struct acpi_repair_info *this_name;
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 686420df684..2808586fad3 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -112,10 +112,10 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
if (!node) {
ACPI_WARNING((AE_INFO, "Null Node parameter"));
- return_VALUE(ACPI_TYPE_ANY);
+ return_UINT8(ACPI_TYPE_ANY);
}
- return_VALUE(node->type);
+ return_UINT8(node->type);
}
/*******************************************************************************
@@ -140,10 +140,10 @@ u32 acpi_ns_local(acpi_object_type type)
/* Type code out of range */
ACPI_WARNING((AE_INFO, "Invalid Object Type 0x%X", type));
- return_VALUE(ACPI_NS_NORMAL);
+ return_UINT32(ACPI_NS_NORMAL);
}
- return_VALUE(acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
+ return_UINT32(acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index f51308cdbc6..9f25a3d4e99 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -108,7 +108,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
/* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
package_length |= (aml[0] & byte_zero_mask);
- return_VALUE(package_length);
+ return_UINT32(package_length);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 7816d4eef04..72077fa1eea 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -202,6 +202,12 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
}
+ /* Sanity check the length. It must not be zero, or we loop forever */
+
+ if (!resource->length) {
+ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
+ }
+
/* Get the base size of the (external stream) resource descriptor */
total_size = acpi_gbl_aml_resource_sizes[resource->type];
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index cab51445189..b5fc0db2e87 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -385,6 +385,14 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
return;
}
+ /* Sanity check the length. It must not be zero, or we loop forever */
+
+ if (!resource_list->length) {
+ acpi_os_printf
+ ("Invalid zero length descriptor in resource list\n");
+ return;
+ }
+
/* Dump the resource descriptor */
if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c
index ee2e206fc6c..6053aa18209 100644
--- a/drivers/acpi/acpica/rslist.c
+++ b/drivers/acpi/acpica/rslist.c
@@ -178,6 +178,14 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
return_ACPI_STATUS(AE_BAD_DATA);
}
+ /* Sanity check the length. It must not be zero, or we loop forever */
+
+ if (!resource->length) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid zero length descriptor in resource list\n"));
+ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
+ }
+
/* Perform the conversion */
if (resource->type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 15d6eaef0e2..c0e5d2d3ce6 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -563,13 +563,19 @@ acpi_walk_resource_buffer(struct acpi_buffer * buffer,
while (resource < resource_end) {
- /* Sanity check the resource */
+ /* Sanity check the resource type */
if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
status = AE_AML_INVALID_RESOURCE_TYPE;
break;
}
+ /* Sanity check the length. It must not be zero, or we loop forever */
+
+ if (!resource->length) {
+ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
+ }
+
/* Invoke the user function, abort on any error returned */
status = user_function(resource, context);
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 74181bf181e..33b00d22300 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -559,8 +559,12 @@ static void acpi_tb_validate_fadt(void)
/*
* For each extended field, check for length mismatch between the
* legacy length field and the corresponding 64-bit X length field.
+ * Note: If the legacy length field is > 0xFF bits, ignore this
+ * check. (GPE registers can be larger than the 64-bit GAS structure
+ * can accomodate, 0xFF bits).
*/
if (address64->address &&
+ (ACPI_MUL_8(length) <= ACPI_UINT8_MAX) &&
(address64->bit_width != ACPI_MUL_8(length))) {
ACPI_BIOS_WARNING((AE_INFO,
"32/64X length mismatch in FADT/%s: %u/%u",
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index b35a5e6d653..ad11162482f 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -1,6 +1,6 @@
/******************************************************************************
*
- * Module Name: tbxface - ACPI table oriented external interfaces
+ * Module Name: tbxface - ACPI table-oriented external interfaces
*
*****************************************************************************/
@@ -80,7 +80,7 @@ acpi_status acpi_allocate_root_table(u32 initial_table_count)
* array is dynamically allocated.
* initial_table_count - Size of initial_table_array, in number of
* struct acpi_table_desc structures
- * allow_realloc - Flag to tell Table Manager if resize of
+ * allow_resize - Flag to tell Table Manager if resize of
* pre-allocated array is allowed. Ignored
* if initial_table_array is NULL.
*
@@ -107,8 +107,8 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
ACPI_FUNCTION_TRACE(acpi_initialize_tables);
/*
- * Set up the Root Table Array
- * Allocate the table array if requested
+ * Setup the Root Table Array and allocate the table array
+ * if requested
*/
if (!initial_table_array) {
status = acpi_allocate_root_table(initial_table_count);
@@ -305,9 +305,10 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
* instance - Which instance (for SSDTs)
* out_table - Where the pointer to the table is returned
*
- * RETURN: Status and pointer to table
+ * RETURN: Status and pointer to the requested table
*
- * DESCRIPTION: Finds and verifies an ACPI table.
+ * DESCRIPTION: Finds and verifies an ACPI table. Table must be in the
+ * RSDT/XSDT.
*
******************************************************************************/
acpi_status
@@ -375,9 +376,10 @@ ACPI_EXPORT_SYMBOL(acpi_get_table)
* PARAMETERS: table_index - Table index
* table - Where the pointer to the table is returned
*
- * RETURN: Status and pointer to the table
+ * RETURN: Status and pointer to the requested table
*
- * DESCRIPTION: Obtain a table by an index into the global table list.
+ * DESCRIPTION: Obtain a table by an index into the global table list. Used
+ * internally also.
*
******************************************************************************/
acpi_status
@@ -432,7 +434,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
*
* RETURN: Status
*
- * DESCRIPTION: Install table event handler
+ * DESCRIPTION: Install a global table event handler.
*
******************************************************************************/
acpi_status
@@ -479,7 +481,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_table_handler)
*
* RETURN: Status
*
- * DESCRIPTION: Remove table event handler
+ * DESCRIPTION: Remove a table event handler
*
******************************************************************************/
acpi_status acpi_remove_table_handler(acpi_table_handler handler)
diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c
index 698b9d38551..e0a2e2779c2 100644
--- a/drivers/acpi/acpica/utaddress.c
+++ b/drivers/acpi/acpica/utaddress.c
@@ -214,7 +214,7 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id,
if ((space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
(space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
- return_VALUE(0);
+ return_UINT32(0);
}
range_info = acpi_gbl_address_range_list[space_id];
@@ -256,7 +256,7 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id,
range_info = range_info->next;
}
- return_VALUE(overlap_count);
+ return_UINT32(overlap_count);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index e0e8579deaa..a877a9647fd 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -85,7 +85,6 @@ acpi_os_create_cache(char *cache_name,
/* Populate the cache object and return it */
ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
- cache->link_offset = 8;
cache->list_name = cache_name;
cache->object_size = object_size;
cache->max_depth = max_depth;
@@ -108,7 +107,7 @@ acpi_os_create_cache(char *cache_name,
acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache)
{
- char *next;
+ void *next;
acpi_status status;
ACPI_FUNCTION_ENTRY();
@@ -128,10 +127,7 @@ acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache)
/* Delete and unlink one cached state object */
- next = *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)cache->
- list_head)[cache->
- link_offset])));
+ next = ACPI_GET_DESCRIPTOR_PTR(cache->list_head);
ACPI_FREE(cache->list_head);
cache->list_head = next;
@@ -221,10 +217,7 @@ acpi_os_release_object(struct acpi_memory_list * cache, void *object)
/* Put the object at the head of the cache list */
- *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)object)[cache->
- link_offset]))) =
- cache->list_head;
+ ACPI_SET_DESCRIPTOR_PTR(object, cache->list_head);
cache->list_head = object;
cache->current_depth++;
@@ -272,10 +265,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
/* There is an object available, use it */
object = cache->list_head;
- cache->list_head = *(ACPI_CAST_INDIRECT_PTR(char,
- &(((char *)
- object)[cache->
- link_offset])));
+ cache->list_head = ACPI_GET_DESCRIPTOR_PTR(object);
cache->current_depth--;
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 2541de42024..29b930250b6 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -359,19 +359,20 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
* FUNCTION: acpi_ut_update_ref_count
*
* PARAMETERS: object - Object whose ref count is to be updated
- * action - What to do
+ * action - What to do (REF_INCREMENT or REF_DECREMENT)
*
- * RETURN: New ref count
+ * RETURN: None. Sets new reference count within the object
*
- * DESCRIPTION: Modify the ref count and return it.
+ * DESCRIPTION: Modify the reference count for an internal acpi object
*
******************************************************************************/
static void
acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
{
- u16 count;
- u16 new_count;
+ u16 original_count;
+ u16 new_count = 0;
+ acpi_cpu_flags lock_flags;
ACPI_FUNCTION_NAME(ut_update_ref_count);
@@ -379,76 +380,79 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
return;
}
- count = object->common.reference_count;
- new_count = count;
-
/*
- * Perform the reference count action (increment, decrement, force delete)
+ * Always get the reference count lock. Note: Interpreter and/or
+ * Namespace is not always locked when this function is called.
*/
+ lock_flags = acpi_os_acquire_lock(acpi_gbl_reference_count_lock);
+ original_count = object->common.reference_count;
+
+ /* Perform the reference count action (increment, decrement) */
+
switch (action) {
case REF_INCREMENT:
- new_count++;
+ new_count = original_count + 1;
object->common.reference_count = new_count;
+ acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
+
+ /* The current reference count should never be zero here */
+
+ if (!original_count) {
+ ACPI_WARNING((AE_INFO,
+ "Obj %p, Reference Count was zero before increment\n",
+ object));
+ }
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, [Incremented]\n",
- object, new_count));
+ "Obj %p Type %.2X Refs %.2X [Incremented]\n",
+ object, object->common.type, new_count));
break;
case REF_DECREMENT:
- if (count < 1) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, can't decrement! (Set to 0)\n",
- object, new_count));
-
- new_count = 0;
- } else {
- new_count--;
+ /* The current reference count must be non-zero */
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, [Decremented]\n",
- object, new_count));
+ if (original_count) {
+ new_count = original_count - 1;
+ object->common.reference_count = new_count;
}
- if (object->common.type == ACPI_TYPE_METHOD) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Method Obj %p Refs=%X, [Decremented]\n",
- object, new_count));
- }
+ acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
- object->common.reference_count = new_count;
- if (new_count == 0) {
- acpi_ut_delete_internal_obj(object);
+ if (!original_count) {
+ ACPI_WARNING((AE_INFO,
+ "Obj %p, Reference Count is already zero, cannot decrement\n",
+ object));
}
- break;
-
- case REF_FORCE_DELETE:
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, Force delete! (Set to 0)\n",
- object, count));
+ "Obj %p Type %.2X Refs %.2X [Decremented]\n",
+ object, object->common.type, new_count));
- new_count = 0;
- object->common.reference_count = new_count;
- acpi_ut_delete_internal_obj(object);
+ /* Actually delete the object on a reference count of zero */
+
+ if (new_count == 0) {
+ acpi_ut_delete_internal_obj(object);
+ }
break;
default:
- ACPI_ERROR((AE_INFO, "Unknown action (0x%X)", action));
- break;
+ acpi_os_release_lock(acpi_gbl_reference_count_lock, lock_flags);
+ ACPI_ERROR((AE_INFO, "Unknown Reference Count action (0x%X)",
+ action));
+ return;
}
/*
* Sanity check the reference count, for debug purposes only.
* (A deleted object will have a huge reference count)
*/
- if (count > ACPI_MAX_REFERENCE_COUNT) {
+ if (new_count > ACPI_MAX_REFERENCE_COUNT) {
ACPI_WARNING((AE_INFO,
- "Large Reference Count (0x%X) in object %p",
- count, object));
+ "Large Reference Count (0x%X) in object %p, Type=0x%.2X",
+ new_count, object, object->common.type));
}
}
@@ -458,8 +462,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
*
* PARAMETERS: object - Increment ref count for this object
* and all sub-objects
- * action - Either REF_INCREMENT or REF_DECREMENT or
- * REF_FORCE_DELETE
+ * action - Either REF_INCREMENT or REF_DECREMENT
*
* RETURN: Status
*
@@ -714,7 +717,6 @@ void acpi_ut_remove_reference(union acpi_operand_object *object)
/*
* Allow a NULL pointer to be passed in, just ignore it. This saves
* each caller from having to check. Also, ignore NS nodes.
- *
*/
if (!object ||
(ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) {
diff --git a/drivers/acpi/acpica/utexcep.c b/drivers/acpi/acpica/utexcep.c
index a0ab7c02e87..b543a144941 100644
--- a/drivers/acpi/acpica/utexcep.c
+++ b/drivers/acpi/acpica/utexcep.c
@@ -64,7 +64,7 @@ ACPI_MODULE_NAME("utexcep")
******************************************************************************/
const char *acpi_format_exception(acpi_status status)
{
- const char *exception = NULL;
+ const struct acpi_exception_info *exception;
ACPI_FUNCTION_ENTRY();
@@ -76,10 +76,10 @@ const char *acpi_format_exception(acpi_status status)
ACPI_ERROR((AE_INFO,
"Unknown exception code: 0x%8.8X", status));
- exception = "UNKNOWN_STATUS_CODE";
+ return ("UNKNOWN_STATUS_CODE");
}
- return (ACPI_CAST_PTR(const char, exception));
+ return (exception->name);
}
ACPI_EXPORT_SYMBOL(acpi_format_exception)
@@ -97,10 +97,10 @@ ACPI_EXPORT_SYMBOL(acpi_format_exception)
* an ASCII string.
*
******************************************************************************/
-const char *acpi_ut_validate_exception(acpi_status status)
+const struct acpi_exception_info *acpi_ut_validate_exception(acpi_status status)
{
u32 sub_status;
- const char *exception = NULL;
+ const struct acpi_exception_info *exception = NULL;
ACPI_FUNCTION_ENTRY();
@@ -113,35 +113,35 @@ const char *acpi_ut_validate_exception(acpi_status status)
case AE_CODE_ENVIRONMENTAL:
if (sub_status <= AE_CODE_ENV_MAX) {
- exception = acpi_gbl_exception_names_env[sub_status];
+ exception = &acpi_gbl_exception_names_env[sub_status];
}
break;
case AE_CODE_PROGRAMMER:
if (sub_status <= AE_CODE_PGM_MAX) {
- exception = acpi_gbl_exception_names_pgm[sub_status];
+ exception = &acpi_gbl_exception_names_pgm[sub_status];
}
break;
case AE_CODE_ACPI_TABLES:
if (sub_status <= AE_CODE_TBL_MAX) {
- exception = acpi_gbl_exception_names_tbl[sub_status];
+ exception = &acpi_gbl_exception_names_tbl[sub_status];
}
break;
case AE_CODE_AML:
if (sub_status <= AE_CODE_AML_MAX) {
- exception = acpi_gbl_exception_names_aml[sub_status];
+ exception = &acpi_gbl_exception_names_aml[sub_status];
}
break;
case AE_CODE_CONTROL:
if (sub_status <= AE_CODE_CTRL_MAX) {
- exception = acpi_gbl_exception_names_ctrl[sub_status];
+ exception = &acpi_gbl_exception_names_ctrl[sub_status];
}
break;
@@ -149,5 +149,9 @@ const char *acpi_ut_validate_exception(acpi_status status)
break;
}
- return (ACPI_CAST_PTR(const char, exception));
+ if (!exception || !exception->name) {
+ return (NULL);
+ }
+
+ return (exception);
}
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index ffecf4b4f0d..f736448a860 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -359,6 +359,8 @@ acpi_status acpi_ut_init_globals(void)
#ifdef ACPI_DISASSEMBLER
acpi_gbl_external_list = NULL;
+ acpi_gbl_num_external_methods = 0;
+ acpi_gbl_resolved_external_methods = 0;
#endif
#ifdef ACPI_DEBUG_OUTPUT
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 22feb99b8e3..08c32324558 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -81,7 +81,7 @@ acpi_status acpi_ut_mutex_initialize(void)
}
}
- /* Create the spinlocks for use at interrupt level */
+ /* Create the spinlocks for use at interrupt level or for speed */
status = acpi_os_create_lock (&acpi_gbl_gpe_lock);
if (ACPI_FAILURE (status)) {
@@ -93,7 +93,13 @@ acpi_status acpi_ut_mutex_initialize(void)
return_ACPI_STATUS (status);
}
+ status = acpi_os_create_lock(&acpi_gbl_reference_count_lock);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
/* Mutex for _OSI support */
+
status = acpi_os_create_mutex(&acpi_gbl_osi_mutex);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
@@ -136,6 +142,7 @@ void acpi_ut_mutex_terminate(void)
acpi_os_delete_lock(acpi_gbl_gpe_lock);
acpi_os_delete_lock(acpi_gbl_hardware_lock);
+ acpi_os_delete_lock(acpi_gbl_reference_count_lock);
/* Delete the reader/writer lock */
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 36a7d361d7c..b15acebb96a 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -108,9 +108,14 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
acpi_status acpi_ut_initialize_interfaces(void)
{
+ acpi_status status;
u32 i;
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
acpi_gbl_supported_interfaces = acpi_default_supported_interfaces;
/* Link the static list of supported interfaces */
@@ -132,20 +137,24 @@ acpi_status acpi_ut_initialize_interfaces(void)
*
* PARAMETERS: None
*
- * RETURN: None
+ * RETURN: Status
*
* DESCRIPTION: Delete all interfaces in the global list. Sets
* acpi_gbl_supported_interfaces to NULL.
*
******************************************************************************/
-void acpi_ut_interface_terminate(void)
+acpi_status acpi_ut_interface_terminate(void)
{
+ acpi_status status;
struct acpi_interface_info *next_interface;
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
- next_interface = acpi_gbl_supported_interfaces;
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ next_interface = acpi_gbl_supported_interfaces;
while (next_interface) {
acpi_gbl_supported_interfaces = next_interface->next;
@@ -160,6 +169,7 @@ void acpi_ut_interface_terminate(void)
}
acpi_os_release_mutex(acpi_gbl_osi_mutex);
+ return (AE_OK);
}
/*******************************************************************************
@@ -315,6 +325,7 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
union acpi_operand_object *return_desc;
struct acpi_interface_info *interface_info;
acpi_interface_handler interface_handler;
+ acpi_status status;
u32 return_value;
ACPI_FUNCTION_TRACE(ut_osi_implementation);
@@ -336,7 +347,10 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
/* Default return value is 0, NOT SUPPORTED */
return_value = 0;
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
/* Lookup the interface in the global _OSI list */
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
new file mode 100644
index 00000000000..29459479148
--- /dev/null
+++ b/drivers/acpi/acpica/utpredef.c
@@ -0,0 +1,399 @@
+/******************************************************************************
+ *
+ * Module Name: utpredef - support functions for predefined names
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2013, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acpredef.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utpredef")
+
+/*
+ * Names for the types that can be returned by the predefined objects.
+ * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
+ */
+static const char *ut_rtype_names[] = {
+ "/Integer",
+ "/String",
+ "/Buffer",
+ "/Package",
+ "/Reference",
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_next_predefined_method
+ *
+ * PARAMETERS: this_name - Entry in the predefined method/name table
+ *
+ * RETURN: Pointer to next entry in predefined table.
+ *
+ * DESCRIPTION: Get the next entry in the predefine method table. Handles the
+ * cases where a package info entry follows a method name that
+ * returns a package.
+ *
+ ******************************************************************************/
+
+const union acpi_predefined_info *acpi_ut_get_next_predefined_method(const union
+ acpi_predefined_info
+ *this_name)
+{
+
+ /*
+ * Skip next entry in the table if this name returns a Package
+ * (next entry contains the package info)
+ */
+ if ((this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) &&
+ (this_name->info.expected_btypes != ACPI_RTYPE_ALL)) {
+ this_name++;
+ }
+
+ this_name++;
+ return (this_name);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_match_predefined_method
+ *
+ * PARAMETERS: name - Name to find
+ *
+ * RETURN: Pointer to entry in predefined table. NULL indicates not found.
+ *
+ * DESCRIPTION: Check an object name against the predefined object list.
+ *
+ ******************************************************************************/
+
+const union acpi_predefined_info *acpi_ut_match_predefined_method(char *name)
+{
+ const union acpi_predefined_info *this_name;
+
+ /* Quick check for a predefined name, first character must be underscore */
+
+ if (name[0] != '_') {
+ return (NULL);
+ }
+
+ /* Search info table for a predefined method/object name */
+
+ this_name = acpi_gbl_predefined_methods;
+ while (this_name->info.name[0]) {
+ if (ACPI_COMPARE_NAME(name, this_name->info.name)) {
+ return (this_name);
+ }
+
+ this_name = acpi_ut_get_next_predefined_method(this_name);
+ }
+
+ return (NULL); /* Not found */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_expected_return_types
+ *
+ * PARAMETERS: buffer - Where the formatted string is returned
+ * expected_Btypes - Bitfield of expected data types
+ *
+ * RETURN: Formatted string in Buffer.
+ *
+ * DESCRIPTION: Format the expected object types into a printable string.
+ *
+ ******************************************************************************/
+
+void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
+{
+ u32 this_rtype;
+ u32 i;
+ u32 j;
+
+ j = 1;
+ buffer[0] = 0;
+ this_rtype = ACPI_RTYPE_INTEGER;
+
+ for (i = 0; i < ACPI_NUM_RTYPES; i++) {
+
+ /* If one of the expected types, concatenate the name of this type */
+
+ if (expected_btypes & this_rtype) {
+ ACPI_STRCAT(buffer, &ut_rtype_names[i][j]);
+ j = 0; /* Use name separator from now on */
+ }
+
+ this_rtype <<= 1; /* Next Rtype */
+ }
+}
+
+/*******************************************************************************
+ *
+ * The remaining functions are used by iASL and acpi_help only
+ *
+ ******************************************************************************/
+
+#if (defined ACPI_ASL_COMPILER || defined ACPI_HELP_APP)
+#include <stdio.h>
+#include <string.h>
+
+/* Local prototypes */
+
+static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types);
+
+/* Types that can be returned externally by a predefined name */
+
+static const char *ut_external_type_names[] = /* Indexed by ACPI_TYPE_* */
+{
+ ", UNSUPPORTED-TYPE",
+ ", Integer",
+ ", String",
+ ", Buffer",
+ ", Package"
+};
+
+/* Bit widths for resource descriptor predefined names */
+
+static const char *ut_resource_type_names[] = {
+ "/1",
+ "/2",
+ "/3",
+ "/8",
+ "/16",
+ "/32",
+ "/64",
+ "/variable",
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_match_resource_name
+ *
+ * PARAMETERS: name - Name to find
+ *
+ * RETURN: Pointer to entry in the resource table. NULL indicates not
+ * found.
+ *
+ * DESCRIPTION: Check an object name against the predefined resource
+ * descriptor object list.
+ *
+ ******************************************************************************/
+
+const union acpi_predefined_info *acpi_ut_match_resource_name(char *name)
+{
+ const union acpi_predefined_info *this_name;
+
+ /* Quick check for a predefined name, first character must be underscore */
+
+ if (name[0] != '_') {
+ return (NULL);
+ }
+
+ /* Search info table for a predefined method/object name */
+
+ this_name = acpi_gbl_resource_names;
+ while (this_name->info.name[0]) {
+ if (ACPI_COMPARE_NAME(name, this_name->info.name)) {
+ return (this_name);
+ }
+
+ this_name++;
+ }
+
+ return (NULL); /* Not found */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_display_predefined_method
+ *
+ * PARAMETERS: buffer - Scratch buffer for this function
+ * this_name - Entry in the predefined method/name table
+ * multi_line - TRUE if output should be on >1 line
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Display information about a predefined method. Number and
+ * type of the input arguments, and expected type(s) for the
+ * return value, if any.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_display_predefined_method(char *buffer,
+ const union acpi_predefined_info *this_name,
+ u8 multi_line)
+{
+ u32 arg_count;
+
+ /*
+ * Get the argument count and the string buffer
+ * containing all argument types
+ */
+ arg_count = acpi_ut_get_argument_types(buffer,
+ this_name->info.argument_list);
+
+ if (multi_line) {
+ printf(" ");
+ }
+
+ printf("%4.4s Requires %s%u argument%s",
+ this_name->info.name,
+ (this_name->info.argument_list & ARG_COUNT_IS_MINIMUM) ?
+ "(at least) " : "", arg_count, arg_count != 1 ? "s" : "");
+
+ /* Display the types for any arguments */
+
+ if (arg_count > 0) {
+ printf(" (%s)", buffer);
+ }
+
+ if (multi_line) {
+ printf("\n ");
+ }
+
+ /* Get the return value type(s) allowed */
+
+ if (this_name->info.expected_btypes) {
+ acpi_ut_get_expected_return_types(buffer,
+ this_name->info.
+ expected_btypes);
+ printf(" Return value types: %s\n", buffer);
+ } else {
+ printf(" No return value\n");
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_argument_types
+ *
+ * PARAMETERS: buffer - Where to return the formatted types
+ * argument_types - Types field for this method
+ *
+ * RETURN: count - the number of arguments required for this method
+ *
+ * DESCRIPTION: Format the required data types for this method (Integer,
+ * String, Buffer, or Package) and return the required argument
+ * count.
+ *
+ ******************************************************************************/
+
+static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
+{
+ u16 this_argument_type;
+ u16 sub_index;
+ u16 arg_count;
+ u32 i;
+
+ *buffer = 0;
+ sub_index = 2;
+
+ /* First field in the types list is the count of args to follow */
+
+ arg_count = (argument_types & METHOD_ARG_MASK);
+ argument_types >>= METHOD_ARG_BIT_WIDTH;
+
+ if (arg_count > METHOD_PREDEF_ARGS_MAX) {
+ printf("**** Invalid argument count (%u) "
+ "in predefined info structure\n", arg_count);
+ return (arg_count);
+ }
+
+ /* Get each argument from the list, convert to ascii, store to buffer */
+
+ for (i = 0; i < arg_count; i++) {
+ this_argument_type = (argument_types & METHOD_ARG_MASK);
+ if (!this_argument_type
+ || (this_argument_type > METHOD_MAX_ARG_TYPE)) {
+ printf("**** Invalid argument type (%u) "
+ "in predefined info structure\n",
+ this_argument_type);
+ return (arg_count);
+ }
+
+ strcat(buffer,
+ ut_external_type_names[this_argument_type] + sub_index);
+
+ /* Shift to next argument type field */
+
+ argument_types >>= METHOD_ARG_BIT_WIDTH;
+ sub_index = 0;
+ }
+
+ return (arg_count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_resource_bit_width
+ *
+ * PARAMETERS: buffer - Where the formatted string is returned
+ * types - Bitfield of expected data types
+ *
+ * RETURN: Count of return types. Formatted string in Buffer.
+ *
+ * DESCRIPTION: Format the resource bit widths into a printable string.
+ *
+ ******************************************************************************/
+
+u32 acpi_ut_get_resource_bit_width(char *buffer, u16 types)
+{
+ u32 i;
+ u16 sub_index;
+ u32 found;
+
+ *buffer = 0;
+ sub_index = 1;
+ found = 0;
+
+ for (i = 0; i < NUM_RESOURCE_WIDTHS; i++) {
+ if (types & 1) {
+ strcat(buffer, &(ut_resource_type_names[i][sub_index]));
+ sub_index = 0;
+ found++;
+ }
+
+ types >>= 1;
+ }
+
+ return (found);
+}
+#endif
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 48efb446258..6505774f223 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -287,7 +287,10 @@ acpi_status acpi_install_interface(acpi_string interface_name)
return (AE_BAD_PARAMETER);
}
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
/* Check if the interface name is already in the global list */
@@ -336,7 +339,10 @@ acpi_status acpi_remove_interface(acpi_string interface_name)
return (AE_BAD_PARAMETER);
}
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
status = acpi_ut_remove_interface(interface_name);
@@ -362,9 +368,12 @@ ACPI_EXPORT_SYMBOL(acpi_remove_interface)
****************************************************************************/
acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
{
- acpi_status status = AE_OK;
+ acpi_status status;
- (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
if (handler && acpi_gbl_interface_handler) {
status = AE_ALREADY_EXISTS;
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index c5cd5b5513e..0cc384b7294 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -146,7 +146,7 @@ struct acpi_battery {
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat)
-inline int acpi_battery_present(struct acpi_battery *battery)
+static inline int acpi_battery_present(struct acpi_battery *battery)
{
return battery->device->status.battery_present;
}
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 01708a16536..292de3cab9c 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -288,13 +288,12 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
}
out_success:
context->ret.length = out_obj->buffer.length;
- context->ret.pointer = kmalloc(context->ret.length, GFP_KERNEL);
+ context->ret.pointer = kmemdup(out_obj->buffer.pointer,
+ context->ret.length, GFP_KERNEL);
if (!context->ret.pointer) {
status = AE_NO_MEMORY;
goto out_kfree;
}
- memcpy(context->ret.pointer, out_obj->buffer.pointer,
- context->ret.length);
status = AE_OK;
out_kfree:
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 86c7d5445c3..92a659aa639 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -33,6 +33,7 @@
#include <linux/slab.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#include <acpi/button.h>
#define PREFIX "ACPI: "
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 5523ba7d764..e2315166765 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -1,12 +1,12 @@
/*
- * acpi_container.c - ACPI Generic Container Driver
- * ($Revision: )
+ * container.c - ACPI Generic Container Driver
*
* Copyright (C) 2004 Anil S Keshavamurthy (anil.s.keshavamurthy@intel.com)
* Copyright (C) 2004 Keiichiro Tokunaga (tokunaga.keiich@jp.fujitsu.com)
* Copyright (C) 2004 Motoyuki Ito (motoyuki@soft.fujitsu.com)
- * Copyright (C) 2004 Intel Corp.
* Copyright (C) 2004 FUJITSU LIMITED
+ * Copyright (C) 2004, 2013 Intel Corp.
+ * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
@@ -26,14 +26,11 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/types.h>
#include <linux/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
+
+#include "internal.h"
+
+#include "internal.h"
#define PREFIX "ACPI: "
@@ -50,141 +47,20 @@ static const struct acpi_device_id container_device_ids[] = {
static int container_device_attach(struct acpi_device *device,
const struct acpi_device_id *not_used)
{
- /*
- * FIXME: This is necessary, so that acpi_eject_store() doesn't return
- * -ENODEV for containers.
- */
+ /* This is necessary for container hotplug to work. */
return 1;
}
-static struct acpi_scan_handler container_device_handler = {
+static struct acpi_scan_handler container_handler = {
.ids = container_device_ids,
.attach = container_device_attach,
+ .hotplug = {
+ .enabled = true,
+ .mode = AHM_CONTAINER,
+ },
};
-static int is_device_present(acpi_handle handle)
-{
- acpi_handle temp;
- acpi_status status;
- unsigned long long sta;
-
-
- status = acpi_get_handle(handle, "_STA", &temp);
- if (ACPI_FAILURE(status))
- return 1; /* _STA not found, assume device present */
-
- status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
- if (ACPI_FAILURE(status))
- return 0; /* Firmware error */
-
- return ((sta & ACPI_STA_DEVICE_PRESENT) == ACPI_STA_DEVICE_PRESENT);
-}
-
-static void container_notify_cb(acpi_handle handle, u32 type, void *context)
-{
- struct acpi_device *device = NULL;
- int result;
- int present;
- acpi_status status;
- u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
-
- acpi_scan_lock_acquire();
-
- switch (type) {
- case ACPI_NOTIFY_BUS_CHECK:
- /* Fall through */
- case ACPI_NOTIFY_DEVICE_CHECK:
- pr_debug("Container driver received %s event\n",
- (type == ACPI_NOTIFY_BUS_CHECK) ?
- "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK");
-
- present = is_device_present(handle);
- status = acpi_bus_get_device(handle, &device);
- if (!present) {
- if (ACPI_SUCCESS(status)) {
- /* device exist and this is a remove request */
- device->flags.eject_pending = 1;
- kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
- goto out;
- }
- break;
- }
-
- if (!ACPI_FAILURE(status) || device)
- break;
-
- result = acpi_bus_scan(handle);
- if (result) {
- acpi_handle_warn(handle, "Failed to add container\n");
- break;
- }
- result = acpi_bus_get_device(handle, &device);
- if (result) {
- acpi_handle_warn(handle, "Missing device object\n");
- break;
- }
-
- kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
- ost_code = ACPI_OST_SC_SUCCESS;
- break;
-
- case ACPI_NOTIFY_EJECT_REQUEST:
- if (!acpi_bus_get_device(handle, &device) && device) {
- device->flags.eject_pending = 1;
- kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
- goto out;
- }
- break;
-
- default:
- /* non-hotplug event; possibly handled by other handler */
- goto out;
- }
-
- /* Inform firmware that the hotplug operation has completed */
- (void) acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL);
-
- out:
- acpi_scan_lock_release();
-}
-
-static bool is_container(acpi_handle handle)
-{
- struct acpi_device_info *info;
- bool ret = false;
-
- if (ACPI_FAILURE(acpi_get_object_info(handle, &info)))
- return false;
-
- if (info->valid & ACPI_VALID_HID) {
- const struct acpi_device_id *id;
-
- for (id = container_device_ids; id->id[0]; id++) {
- ret = !strcmp((char *)id->id, info->hardware_id.string);
- if (ret)
- break;
- }
- }
- kfree(info);
- return ret;
-}
-
-static acpi_status acpi_container_register_notify_handler(acpi_handle handle,
- u32 lvl, void *ctxt,
- void **retv)
-{
- if (is_container(handle))
- acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
- container_notify_cb, NULL);
-
- return AE_OK;
-}
-
void __init acpi_container_init(void)
{
- acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
- acpi_container_register_notify_handler, NULL,
- NULL, NULL);
-
- acpi_scan_add_handler(&container_device_handler);
+ acpi_scan_add_handler_with_hotplug(&container_handler, "container");
}
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index dd314ef9bff..96de787e610 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -145,27 +145,36 @@ int acpi_device_get_power(struct acpi_device *device, int *state)
}
/*
- * Get the device's power state either directly (via _PSC) or
- * indirectly (via power resources).
+ * Get the device's power state from power resources settings and _PSC,
+ * if available.
*/
+ if (device->power.flags.power_resources) {
+ int error = acpi_power_get_inferred_state(device, &result);
+ if (error)
+ return error;
+ }
if (device->power.flags.explicit_get) {
+ acpi_handle handle = device->handle;
unsigned long long psc;
- acpi_status status = acpi_evaluate_integer(device->handle,
- "_PSC", NULL, &psc);
+ acpi_status status;
+
+ status = acpi_evaluate_integer(handle, "_PSC", NULL, &psc);
if (ACPI_FAILURE(status))
return -ENODEV;
- result = psc;
- }
- /* The test below covers ACPI_STATE_UNKNOWN too. */
- if (result <= ACPI_STATE_D2) {
- ; /* Do nothing. */
- } else if (device->power.flags.power_resources) {
- int error = acpi_power_get_inferred_state(device, &result);
- if (error)
- return error;
- } else if (result == ACPI_STATE_D3_HOT) {
- result = ACPI_STATE_D3;
+ /*
+ * The power resources settings may indicate a power state
+ * shallower than the actual power state of the device.
+ *
+ * Moreover, on systems predating ACPI 4.0, if the device
+ * doesn't depend on any power resources and _PSC returns 3,
+ * that means "power off". We need to maintain compatibility
+ * with those systems.
+ */
+ if (psc > result && psc < ACPI_STATE_D3_COLD)
+ result = psc;
+ else if (result == ACPI_STATE_UNKNOWN)
+ result = psc > ACPI_STATE_D2 ? ACPI_STATE_D3_COLD : psc;
}
/*
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index f815da82c76..8d1c0105e11 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -174,9 +174,13 @@ static int acpi_fan_add(struct acpi_device *device)
static int acpi_fan_remove(struct acpi_device *device)
{
- struct thermal_cooling_device *cdev = acpi_driver_data(device);
+ struct thermal_cooling_device *cdev;
+
+ if (!device)
+ return -EINVAL;
- if (!device || !cdev)
+ cdev = acpi_driver_data(device);
+ if (!cdev)
return -EINVAL;
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 3c94a732b4b..6f1afd9118c 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -41,6 +41,17 @@ void acpi_container_init(void);
#else
static inline void acpi_container_init(void) {}
#endif
+#ifdef CONFIG_ACPI_HOTPLUG_MEMORY
+void acpi_memory_hotplug_init(void);
+#else
+static inline void acpi_memory_hotplug_init(void) {}
+#endif
+
+void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
+ const char *name);
+int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
+ const char *hotplug_profile_name);
+void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
#ifdef CONFIG_DEBUG_FS
extern struct dentry *acpi_debugfs_dir;
@@ -48,6 +59,11 @@ int acpi_debugfs_init(void);
#else
static inline void acpi_debugfs_init(void) { return; }
#endif
+#ifdef CONFIG_X86_INTEL_LPSS
+void acpi_lpss_init(void);
+#else
+static inline void acpi_lpss_init(void) {}
+#endif
/* --------------------------------------------------------------------------
Device Node Initialization / Removal
@@ -60,7 +76,7 @@ int acpi_device_add(struct acpi_device *device,
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, unsigned long long sta);
void acpi_device_add_finalize(struct acpi_device *device);
-void acpi_free_ids(struct acpi_device *device);
+void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
/* --------------------------------------------------------------------------
Power Resource
@@ -131,4 +147,7 @@ static inline void suspend_nvs_restore(void) {}
-------------------------------------------------------------------------- */
struct platform_device;
+int acpi_create_platform_device(struct acpi_device *adev,
+ const struct acpi_device_id *id);
+
#endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 586e7e993d3..e72186340fe 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -641,7 +641,7 @@ void __init acpi_initrd_override(void *data, size_t size)
* Both memblock_reserve and e820_add_region (via arch_reserve_mem_area)
* works fine.
*/
- memblock_reserve(acpi_tables_addr, acpi_tables_addr + all_tables_size);
+ memblock_reserve(acpi_tables_addr, all_tables_size);
arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
p = early_ioremap(acpi_tables_addr, all_tables_size);
@@ -1555,7 +1555,7 @@ int acpi_check_resource_conflict(const struct resource *res)
else
space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
- length = res->end - res->start + 1;
+ length = resource_size(res);
if (acpi_enforce_resources != ENFORCE_RESOURCES_NO)
warn = 1;
clash = acpi_check_address_range(space_id, res->start, length, warn);
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index ab764ed34a5..2652a614dee 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -354,6 +354,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
}
resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
+ resource->end.length = sizeof(struct acpi_resource);
/* Attempt to set the resource */
status = acpi_set_current_resources(link->device->handle, &buffer);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index ac8688b8970..1dd6f6c8587 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -169,8 +169,8 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
*control &= OSC_PCI_CONTROL_MASKS;
capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set;
} else {
- /* Run _OSC query for all possible controls. */
- capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
+ /* Run _OSC query only with existing controls. */
+ capbuf[OSC_CONTROL_TYPE] = root->osc_control_set;
}
status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 34f5ef11d42..f962047c6c8 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -459,57 +459,79 @@ static struct attribute_group attr_groups[] = {
},
};
-static void acpi_power_hide_list(struct acpi_device *adev, int state)
+static struct attribute_group wakeup_attr_group = {
+ .name = "power_resources_wakeup",
+ .attrs = attrs,
+};
+
+static void acpi_power_hide_list(struct acpi_device *adev,
+ struct list_head *resources,
+ struct attribute_group *attr_group)
{
- struct acpi_device_power_state *ps = &adev->power.states[state];
struct acpi_power_resource_entry *entry;
- if (list_empty(&ps->resources))
+ if (list_empty(resources))
return;
- list_for_each_entry_reverse(entry, &ps->resources, node) {
+ list_for_each_entry_reverse(entry, resources, node) {
struct acpi_device *res_dev = &entry->resource->device;
sysfs_remove_link_from_group(&adev->dev.kobj,
- attr_groups[state].name,
+ attr_group->name,
dev_name(&res_dev->dev));
}
- sysfs_remove_group(&adev->dev.kobj, &attr_groups[state]);
+ sysfs_remove_group(&adev->dev.kobj, attr_group);
}
-static void acpi_power_expose_list(struct acpi_device *adev, int state)
+static void acpi_power_expose_list(struct acpi_device *adev,
+ struct list_head *resources,
+ struct attribute_group *attr_group)
{
- struct acpi_device_power_state *ps = &adev->power.states[state];
struct acpi_power_resource_entry *entry;
int ret;
- if (list_empty(&ps->resources))
+ if (list_empty(resources))
return;
- ret = sysfs_create_group(&adev->dev.kobj, &attr_groups[state]);
+ ret = sysfs_create_group(&adev->dev.kobj, attr_group);
if (ret)
return;
- list_for_each_entry(entry, &ps->resources, node) {
+ list_for_each_entry(entry, resources, node) {
struct acpi_device *res_dev = &entry->resource->device;
ret = sysfs_add_link_to_group(&adev->dev.kobj,
- attr_groups[state].name,
+ attr_group->name,
&res_dev->dev.kobj,
dev_name(&res_dev->dev));
if (ret) {
- acpi_power_hide_list(adev, state);
+ acpi_power_hide_list(adev, resources, attr_group);
break;
}
}
}
+static void acpi_power_expose_hide(struct acpi_device *adev,
+ struct list_head *resources,
+ struct attribute_group *attr_group,
+ bool expose)
+{
+ if (expose)
+ acpi_power_expose_list(adev, resources, attr_group);
+ else
+ acpi_power_hide_list(adev, resources, attr_group);
+}
+
void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
{
struct acpi_device_power_state *ps;
struct acpi_power_resource_entry *entry;
int state;
+ if (adev->wakeup.flags.valid)
+ acpi_power_expose_hide(adev, &adev->wakeup.resources,
+ &wakeup_attr_group, add);
+
if (!adev->power.flags.power_resources)
return;
@@ -523,12 +545,10 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
acpi_power_remove_dependent(resource, adev);
}
- for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++) {
- if (add)
- acpi_power_expose_list(adev, state);
- else
- acpi_power_hide_list(adev, state);
- }
+ for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++)
+ acpi_power_expose_hide(adev,
+ &adev->power.states[state].resources,
+ &attr_groups[state], add);
}
int acpi_power_wakeup_list_init(struct list_head *list, int *system_level_p)
@@ -824,7 +844,7 @@ static void acpi_release_power_resource(struct device *dev)
list_del(&resource->list_node);
mutex_unlock(&power_resource_list_lock);
- acpi_free_ids(device);
+ acpi_free_pnp_ids(&device->pnp);
kfree(resource);
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ee255c60bda..f0df2c9434d 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -918,7 +918,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
struct cpuidle_driver acpi_idle_driver = {
.name = "acpi_idle",
.owner = THIS_MODULE,
- .en_core_tk_irqen = 1,
};
/**
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index 641b5450a0d..e8e652710e6 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -218,9 +218,13 @@ processor_get_max_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
struct acpi_device *device = cdev->devdata;
- struct acpi_processor *pr = acpi_driver_data(device);
+ struct acpi_processor *pr;
- if (!device || !pr)
+ if (!device)
+ return -EINVAL;
+
+ pr = acpi_driver_data(device);
+ if (!pr)
return -EINVAL;
*state = acpi_processor_max_state(pr);
@@ -232,9 +236,13 @@ processor_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *cur_state)
{
struct acpi_device *device = cdev->devdata;
- struct acpi_processor *pr = acpi_driver_data(device);
+ struct acpi_processor *pr;
- if (!device || !pr)
+ if (!device)
+ return -EINVAL;
+
+ pr = acpi_driver_data(device);
+ if (!pr)
return -EINVAL;
*cur_state = cpufreq_get_cur_state(pr->id);
@@ -248,11 +256,15 @@ processor_set_cur_state(struct thermal_cooling_device *cdev,
unsigned long state)
{
struct acpi_device *device = cdev->devdata;
- struct acpi_processor *pr = acpi_driver_data(device);
+ struct acpi_processor *pr;
int result = 0;
int max_pstate;
- if (!device || !pr)
+ if (!device)
+ return -EINVAL;
+
+ pr = acpi_driver_data(device);
+ if (!pr)
return -EINVAL;
max_pstate = cpufreq_get_max_state(pr->id);
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 1d02b7b5ade..e7dd2c1fee7 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -211,9 +211,10 @@ err_ret:
*/
void acpi_processor_throttling_init(void)
{
- if (acpi_processor_update_tsd_coord())
+ if (acpi_processor_update_tsd_coord()) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Assume no T-state coordination\n"));
+ }
return;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index f54d1985e59..fe158fd4f1d 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -63,6 +63,19 @@ int acpi_scan_add_handler(struct acpi_scan_handler *handler)
return 0;
}
+int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
+ const char *hotplug_profile_name)
+{
+ int error;
+
+ error = acpi_scan_add_handler(handler);
+ if (error)
+ return error;
+
+ acpi_sysfs_add_hotplug_profile(&handler->hotplug, hotplug_profile_name);
+ return 0;
+}
+
/*
* Creates hid/cid(s) string needed for modalias and uevent
* e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
@@ -107,32 +120,20 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
}
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
-/**
- * acpi_bus_hot_remove_device: hot-remove a device and its children
- * @context: struct acpi_eject_event pointer (freed in this func)
- *
- * Hot-remove a device and its children. This function frees up the
- * memory space passed by arg context, so that the caller may call
- * this function asynchronously through acpi_os_hotplug_execute().
- */
-void acpi_bus_hot_remove_device(void *context)
+static int acpi_scan_hot_remove(struct acpi_device *device)
{
- struct acpi_eject_event *ej_event = context;
- struct acpi_device *device = ej_event->device;
acpi_handle handle = device->handle;
- acpi_handle temp;
+ acpi_handle not_used;
struct acpi_object_list arg_list;
union acpi_object arg;
- acpi_status status = AE_OK;
- u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
-
- mutex_lock(&acpi_scan_lock);
+ acpi_status status;
+ unsigned long long sta;
/* If there is no handle, the device node has been unregistered. */
- if (!device->handle) {
+ if (!handle) {
dev_dbg(&device->dev, "ACPI handle missing\n");
put_device(&device->dev);
- goto out;
+ return -EINVAL;
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -143,7 +144,7 @@ void acpi_bus_hot_remove_device(void *context)
put_device(&device->dev);
device = NULL;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", &temp))) {
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", &not_used))) {
arg_list.count = 1;
arg_list.pointer = &arg;
arg.type = ACPI_TYPE_INTEGER;
@@ -161,18 +162,205 @@ void acpi_bus_hot_remove_device(void *context)
*/
status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
if (ACPI_FAILURE(status)) {
- if (status != AE_NOT_FOUND)
- acpi_handle_warn(handle, "Eject failed\n");
+ if (status == AE_NOT_FOUND) {
+ return -ENODEV;
+ } else {
+ acpi_handle_warn(handle, "Eject failed (0x%x)\n",
+ status);
+ return -EIO;
+ }
+ }
- /* Tell the firmware the hot-remove operation has failed. */
- acpi_evaluate_hotplug_ost(handle, ej_event->event,
- ost_code, NULL);
+ /*
+ * Verify if eject was indeed successful. If not, log an error
+ * message. No need to call _OST since _EJ0 call was made OK.
+ */
+ status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+ if (ACPI_FAILURE(status)) {
+ acpi_handle_warn(handle,
+ "Status check after eject failed (0x%x)\n", status);
+ } else if (sta & ACPI_STA_DEVICE_ENABLED) {
+ acpi_handle_warn(handle,
+ "Eject incomplete - status 0x%llx\n", sta);
+ }
+
+ return 0;
+}
+
+static void acpi_bus_device_eject(void *context)
+{
+ acpi_handle handle = context;
+ struct acpi_device *device = NULL;
+ struct acpi_scan_handler *handler;
+ u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
+
+ mutex_lock(&acpi_scan_lock);
+
+ acpi_bus_get_device(handle, &device);
+ if (!device)
+ goto err_out;
+
+ handler = device->handler;
+ if (!handler || !handler->hotplug.enabled) {
+ ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
+ goto err_out;
+ }
+ acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
+ ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
+ if (handler->hotplug.mode == AHM_CONTAINER) {
+ device->flags.eject_pending = true;
+ kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
+ } else {
+ int error;
+
+ get_device(&device->dev);
+ error = acpi_scan_hot_remove(device);
+ if (error)
+ goto err_out;
}
out:
mutex_unlock(&acpi_scan_lock);
- kfree(context);
return;
+
+ err_out:
+ acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, ost_code,
+ NULL);
+ goto out;
+}
+
+static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source)
+{
+ struct acpi_device *device = NULL;
+ u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
+ int error;
+
+ mutex_lock(&acpi_scan_lock);
+
+ acpi_bus_get_device(handle, &device);
+ if (device) {
+ dev_warn(&device->dev, "Attempt to re-insert\n");
+ goto out;
+ }
+ acpi_evaluate_hotplug_ost(handle, ost_source,
+ ACPI_OST_SC_INSERT_IN_PROGRESS, NULL);
+ error = acpi_bus_scan(handle);
+ if (error) {
+ acpi_handle_warn(handle, "Namespace scan failure\n");
+ goto out;
+ }
+ error = acpi_bus_get_device(handle, &device);
+ if (error) {
+ acpi_handle_warn(handle, "Missing device node object\n");
+ goto out;
+ }
+ ost_code = ACPI_OST_SC_SUCCESS;
+ if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER)
+ kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
+
+ out:
+ acpi_evaluate_hotplug_ost(handle, ost_source, ost_code, NULL);
+ mutex_unlock(&acpi_scan_lock);
+}
+
+static void acpi_scan_bus_check(void *context)
+{
+ acpi_scan_bus_device_check((acpi_handle)context,
+ ACPI_NOTIFY_BUS_CHECK);
+}
+
+static void acpi_scan_device_check(void *context)
+{
+ acpi_scan_bus_device_check((acpi_handle)context,
+ ACPI_NOTIFY_DEVICE_CHECK);
+}
+
+static void acpi_hotplug_unsupported(acpi_handle handle, u32 type)
+{
+ u32 ost_status;
+
+ switch (type) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ acpi_handle_debug(handle,
+ "ACPI_NOTIFY_BUS_CHECK event: unsupported\n");
+ ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED;
+ break;
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ acpi_handle_debug(handle,
+ "ACPI_NOTIFY_DEVICE_CHECK event: unsupported\n");
+ ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED;
+ break;
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ acpi_handle_debug(handle,
+ "ACPI_NOTIFY_EJECT_REQUEST event: unsupported\n");
+ ost_status = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
+ break;
+ default:
+ /* non-hotplug event; possibly handled by other handler */
+ return;
+ }
+
+ acpi_evaluate_hotplug_ost(handle, type, ost_status, NULL);
+}
+
+static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
+{
+ acpi_osd_exec_callback callback;
+ struct acpi_scan_handler *handler = data;
+ acpi_status status;
+
+ if (!handler->hotplug.enabled)
+ return acpi_hotplug_unsupported(handle, type);
+
+ switch (type) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n");
+ callback = acpi_scan_bus_check;
+ break;
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n");
+ callback = acpi_scan_device_check;
+ break;
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
+ callback = acpi_bus_device_eject;
+ break;
+ default:
+ /* non-hotplug event; possibly handled by other handler */
+ return;
+ }
+ status = acpi_os_hotplug_execute(callback, handle);
+ if (ACPI_FAILURE(status))
+ acpi_evaluate_hotplug_ost(handle, type,
+ ACPI_OST_SC_NON_SPECIFIC_FAILURE,
+ NULL);
+}
+
+/**
+ * acpi_bus_hot_remove_device: hot-remove a device and its children
+ * @context: struct acpi_eject_event pointer (freed in this func)
+ *
+ * Hot-remove a device and its children. This function frees up the
+ * memory space passed by arg context, so that the caller may call
+ * this function asynchronously through acpi_os_hotplug_execute().
+ */
+void acpi_bus_hot_remove_device(void *context)
+{
+ struct acpi_eject_event *ej_event = context;
+ struct acpi_device *device = ej_event->device;
+ acpi_handle handle = device->handle;
+ int error;
+
+ mutex_lock(&acpi_scan_lock);
+
+ error = acpi_scan_hot_remove(device);
+ if (error && handle)
+ acpi_evaluate_hotplug_ost(handle, ej_event->event,
+ ACPI_OST_SC_NON_SPECIFIC_FAILURE,
+ NULL);
+
+ mutex_unlock(&acpi_scan_lock);
+ kfree(context);
}
EXPORT_SYMBOL(acpi_bus_hot_remove_device);
@@ -206,51 +394,61 @@ static ssize_t
acpi_eject_store(struct device *d, struct device_attribute *attr,
const char *buf, size_t count)
{
- int ret = count;
- acpi_status status;
- acpi_object_type type = 0;
struct acpi_device *acpi_device = to_acpi_device(d);
struct acpi_eject_event *ej_event;
+ acpi_object_type not_used;
+ acpi_status status;
+ u32 ost_source;
+ int ret;
- if ((!count) || (buf[0] != '1')) {
+ if (!count || buf[0] != '1')
return -EINVAL;
- }
- if (!acpi_device->driver && !acpi_device->handler) {
- ret = -ENODEV;
- goto err;
- }
- status = acpi_get_type(acpi_device->handle, &type);
- if (ACPI_FAILURE(status) || (!acpi_device->flags.ejectable)) {
- ret = -ENODEV;
- goto err;
- }
- ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
- if (!ej_event) {
- ret = -ENOMEM;
- goto err;
- }
+ if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled)
+ && !acpi_device->driver)
+ return -ENODEV;
+
+ status = acpi_get_type(acpi_device->handle, &not_used);
+ if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable)
+ return -ENODEV;
+
+ mutex_lock(&acpi_scan_lock);
- get_device(&acpi_device->dev);
- ej_event->device = acpi_device;
if (acpi_device->flags.eject_pending) {
- /* event originated from ACPI eject notification */
- ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
+ /* ACPI eject notification event. */
+ ost_source = ACPI_NOTIFY_EJECT_REQUEST;
acpi_device->flags.eject_pending = 0;
} else {
- /* event originated from user */
- ej_event->event = ACPI_OST_EC_OSPM_EJECT;
- (void) acpi_evaluate_hotplug_ost(acpi_device->handle,
- ej_event->event, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
+ /* Eject initiated by user space. */
+ ost_source = ACPI_OST_EC_OSPM_EJECT;
}
-
+ ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
+ if (!ej_event) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+ acpi_evaluate_hotplug_ost(acpi_device->handle, ost_source,
+ ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
+ ej_event->device = acpi_device;
+ ej_event->event = ost_source;
+ get_device(&acpi_device->dev);
status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
if (ACPI_FAILURE(status)) {
put_device(&acpi_device->dev);
kfree(ej_event);
+ ret = status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
+ goto err_out;
}
-err:
+ ret = count;
+
+ out:
+ mutex_unlock(&acpi_scan_lock);
return ret;
+
+ err_out:
+ acpi_evaluate_hotplug_ost(acpi_device->handle, ost_source,
+ ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
+ goto out;
}
static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
@@ -376,7 +574,7 @@ static int acpi_device_setup_files(struct acpi_device *dev)
goto end;
}
- if (dev->flags.bus_address)
+ if (dev->pnp.type.bus_address)
result = device_create_file(&dev->dev, &dev_attr_adr);
if (dev->pnp.unique_id)
result = device_create_file(&dev->dev, &dev_attr_uid);
@@ -449,7 +647,7 @@ static void acpi_device_remove_files(struct acpi_device *dev)
if (dev->pnp.unique_id)
device_remove_file(&dev->dev, &dev_attr_uid);
- if (dev->flags.bus_address)
+ if (dev->pnp.type.bus_address)
device_remove_file(&dev->dev, &dev_attr_adr);
device_remove_file(&dev->dev, &dev_attr_modalias);
device_remove_file(&dev->dev, &dev_attr_hid);
@@ -512,17 +710,6 @@ int acpi_match_device_ids(struct acpi_device *device,
}
EXPORT_SYMBOL(acpi_match_device_ids);
-void acpi_free_ids(struct acpi_device *device)
-{
- struct acpi_hardware_id *id, *tmp;
-
- list_for_each_entry_safe(id, tmp, &device->pnp.ids, list) {
- kfree(id->id);
- kfree(id);
- }
- kfree(device->pnp.unique_id);
-}
-
static void acpi_free_power_resources_lists(struct acpi_device *device)
{
int i;
@@ -543,7 +730,7 @@ static void acpi_device_release(struct device *dev)
{
struct acpi_device *acpi_dev = to_acpi_device(dev);
- acpi_free_ids(acpi_dev);
+ acpi_free_pnp_ids(&acpi_dev->pnp);
acpi_free_power_resources_lists(acpi_dev);
kfree(acpi_dev);
}
@@ -1256,19 +1443,17 @@ static void acpi_device_get_busid(struct acpi_device *device)
}
/*
- * acpi_bay_match - see if a device is an ejectable driver bay
+ * acpi_bay_match - see if an acpi object is an ejectable driver bay
*
* If an acpi object is ejectable and has one of the ACPI ATA methods defined,
* then we can safely call it an ejectable drive bay
*/
-static int acpi_bay_match(struct acpi_device *device){
+static int acpi_bay_match(acpi_handle handle)
+{
acpi_status status;
- acpi_handle handle;
acpi_handle tmp;
acpi_handle phandle;
- handle = device->handle;
-
status = acpi_get_handle(handle, "_EJ0", &tmp);
if (ACPI_FAILURE(status))
return -ENODEV;
@@ -1292,12 +1477,12 @@ static int acpi_bay_match(struct acpi_device *device){
}
/*
- * acpi_dock_match - see if a device has a _DCK method
+ * acpi_dock_match - see if an acpi object has a _DCK method
*/
-static int acpi_dock_match(struct acpi_device *device)
+static int acpi_dock_match(acpi_handle handle)
{
acpi_handle tmp;
- return acpi_get_handle(device->handle, "_DCK", &tmp);
+ return acpi_get_handle(handle, "_DCK", &tmp);
}
const char *acpi_device_hid(struct acpi_device *device)
@@ -1312,7 +1497,7 @@ const char *acpi_device_hid(struct acpi_device *device)
}
EXPORT_SYMBOL(acpi_device_hid);
-static void acpi_add_id(struct acpi_device *device, const char *dev_id)
+static void acpi_add_id(struct acpi_device_pnp *pnp, const char *dev_id)
{
struct acpi_hardware_id *id;
@@ -1326,7 +1511,8 @@ static void acpi_add_id(struct acpi_device *device, const char *dev_id)
return;
}
- list_add_tail(&id->list, &device->pnp.ids);
+ list_add_tail(&id->list, &pnp->ids);
+ pnp->type.hardware_id = 1;
}
/*
@@ -1334,7 +1520,7 @@ static void acpi_add_id(struct acpi_device *device, const char *dev_id)
* lacks the SMBUS01 HID and the methods do not have the necessary "_"
* prefix. Work around this.
*/
-static int acpi_ibm_smbus_match(struct acpi_device *device)
+static int acpi_ibm_smbus_match(acpi_handle handle)
{
acpi_handle h_dummy;
struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
@@ -1344,7 +1530,7 @@ static int acpi_ibm_smbus_match(struct acpi_device *device)
return -ENODEV;
/* Look for SMBS object */
- result = acpi_get_name(device->handle, ACPI_SINGLE_NAME, &path);
+ result = acpi_get_name(handle, ACPI_SINGLE_NAME, &path);
if (result)
return result;
@@ -1355,48 +1541,50 @@ static int acpi_ibm_smbus_match(struct acpi_device *device)
/* Does it have the necessary (but misnamed) methods? */
result = -ENODEV;
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "SBI", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "SBR", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "SBW", &h_dummy)))
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "SBI", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(handle, "SBR", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(handle, "SBW", &h_dummy)))
result = 0;
out:
kfree(path.pointer);
return result;
}
-static void acpi_device_set_id(struct acpi_device *device)
+static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
+ int device_type)
{
acpi_status status;
struct acpi_device_info *info;
struct acpi_pnp_device_id_list *cid_list;
int i;
- switch (device->device_type) {
+ switch (device_type) {
case ACPI_BUS_TYPE_DEVICE:
- if (ACPI_IS_ROOT_DEVICE(device)) {
- acpi_add_id(device, ACPI_SYSTEM_HID);
+ if (handle == ACPI_ROOT_OBJECT) {
+ acpi_add_id(pnp, ACPI_SYSTEM_HID);
break;
}
- status = acpi_get_object_info(device->handle, &info);
+ status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__);
+ pr_err(PREFIX "%s: Error reading device info\n",
+ __func__);
return;
}
if (info->valid & ACPI_VALID_HID)
- acpi_add_id(device, info->hardware_id.string);
+ acpi_add_id(pnp, info->hardware_id.string);
if (info->valid & ACPI_VALID_CID) {
cid_list = &info->compatible_id_list;
for (i = 0; i < cid_list->count; i++)
- acpi_add_id(device, cid_list->ids[i].string);
+ acpi_add_id(pnp, cid_list->ids[i].string);
}
if (info->valid & ACPI_VALID_ADR) {
- device->pnp.bus_address = info->address;
- device->flags.bus_address = 1;
+ pnp->bus_address = info->address;
+ pnp->type.bus_address = 1;
}
if (info->valid & ACPI_VALID_UID)
- device->pnp.unique_id = kstrdup(info->unique_id.string,
+ pnp->unique_id = kstrdup(info->unique_id.string,
GFP_KERNEL);
kfree(info);
@@ -1405,40 +1593,50 @@ static void acpi_device_set_id(struct acpi_device *device)
* Some devices don't reliably have _HIDs & _CIDs, so add
* synthetic HIDs to make sure drivers can find them.
*/
- if (acpi_is_video_device(device))
- acpi_add_id(device, ACPI_VIDEO_HID);
- else if (ACPI_SUCCESS(acpi_bay_match(device)))
- acpi_add_id(device, ACPI_BAY_HID);
- else if (ACPI_SUCCESS(acpi_dock_match(device)))
- acpi_add_id(device, ACPI_DOCK_HID);
- else if (!acpi_ibm_smbus_match(device))
- acpi_add_id(device, ACPI_SMBUS_IBM_HID);
- else if (list_empty(&device->pnp.ids) &&
- ACPI_IS_ROOT_DEVICE(device->parent)) {
- acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
- strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
- strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
+ if (acpi_is_video_device(handle))
+ acpi_add_id(pnp, ACPI_VIDEO_HID);
+ else if (ACPI_SUCCESS(acpi_bay_match(handle)))
+ acpi_add_id(pnp, ACPI_BAY_HID);
+ else if (ACPI_SUCCESS(acpi_dock_match(handle)))
+ acpi_add_id(pnp, ACPI_DOCK_HID);
+ else if (!acpi_ibm_smbus_match(handle))
+ acpi_add_id(pnp, ACPI_SMBUS_IBM_HID);
+ else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) {
+ acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
+ strcpy(pnp->device_name, ACPI_BUS_DEVICE_NAME);
+ strcpy(pnp->device_class, ACPI_BUS_CLASS);
}
break;
case ACPI_BUS_TYPE_POWER:
- acpi_add_id(device, ACPI_POWER_HID);
+ acpi_add_id(pnp, ACPI_POWER_HID);
break;
case ACPI_BUS_TYPE_PROCESSOR:
- acpi_add_id(device, ACPI_PROCESSOR_OBJECT_HID);
+ acpi_add_id(pnp, ACPI_PROCESSOR_OBJECT_HID);
break;
case ACPI_BUS_TYPE_THERMAL:
- acpi_add_id(device, ACPI_THERMAL_HID);
+ acpi_add_id(pnp, ACPI_THERMAL_HID);
break;
case ACPI_BUS_TYPE_POWER_BUTTON:
- acpi_add_id(device, ACPI_BUTTON_HID_POWERF);
+ acpi_add_id(pnp, ACPI_BUTTON_HID_POWERF);
break;
case ACPI_BUS_TYPE_SLEEP_BUTTON:
- acpi_add_id(device, ACPI_BUTTON_HID_SLEEPF);
+ acpi_add_id(pnp, ACPI_BUTTON_HID_SLEEPF);
break;
}
}
+void acpi_free_pnp_ids(struct acpi_device_pnp *pnp)
+{
+ struct acpi_hardware_id *id, *tmp;
+
+ list_for_each_entry_safe(id, tmp, &pnp->ids, list) {
+ kfree(id->id);
+ kfree(id);
+ }
+ kfree(pnp->unique_id);
+}
+
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, unsigned long long sta)
{
@@ -1448,7 +1646,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
device->parent = acpi_bus_get_parent(handle);
STRUCT_TO_INT(device->status) = sta;
acpi_device_get_busid(device);
- acpi_device_set_id(device);
+ acpi_set_pnp_ids(handle, &device->pnp, type);
acpi_bus_get_flags(device);
device->flags.match_driver = false;
device_initialize(&device->dev);
@@ -1536,6 +1734,75 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
return 0;
}
+static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
+ char *idstr,
+ const struct acpi_device_id **matchid)
+{
+ const struct acpi_device_id *devid;
+
+ for (devid = handler->ids; devid->id[0]; devid++)
+ if (!strcmp((char *)devid->id, idstr)) {
+ if (matchid)
+ *matchid = devid;
+
+ return true;
+ }
+
+ return false;
+}
+
+static struct acpi_scan_handler *acpi_scan_match_handler(char *idstr,
+ const struct acpi_device_id **matchid)
+{
+ struct acpi_scan_handler *handler;
+
+ list_for_each_entry(handler, &acpi_scan_handlers_list, list_node)
+ if (acpi_scan_handler_matching(handler, idstr, matchid))
+ return handler;
+
+ return NULL;
+}
+
+void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val)
+{
+ if (!!hotplug->enabled == !!val)
+ return;
+
+ mutex_lock(&acpi_scan_lock);
+
+ hotplug->enabled = val;
+
+ mutex_unlock(&acpi_scan_lock);
+}
+
+static void acpi_scan_init_hotplug(acpi_handle handle, int type)
+{
+ struct acpi_device_pnp pnp = {};
+ struct acpi_hardware_id *hwid;
+ struct acpi_scan_handler *handler;
+
+ INIT_LIST_HEAD(&pnp.ids);
+ acpi_set_pnp_ids(handle, &pnp, type);
+
+ if (!pnp.type.hardware_id)
+ return;
+
+ /*
+ * This relies on the fact that acpi_install_notify_handler() will not
+ * install the same notify handler routine twice for the same handle.
+ */
+ list_for_each_entry(hwid, &pnp.ids, list) {
+ handler = acpi_scan_match_handler(hwid->id, NULL);
+ if (handler) {
+ acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ acpi_hotplug_notify_cb, handler);
+ break;
+ }
+ }
+
+ acpi_free_pnp_ids(&pnp);
+}
+
static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
void *not_used, void **return_value)
{
@@ -1558,6 +1825,8 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
return AE_OK;
}
+ acpi_scan_init_hotplug(handle, type);
+
if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
!(sta & ACPI_STA_DEVICE_FUNCTIONING)) {
struct acpi_device_wakeup wakeup;
@@ -1583,42 +1852,26 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
return AE_OK;
}
-static int acpi_scan_do_attach_handler(struct acpi_device *device, char *id)
+static int acpi_scan_attach_handler(struct acpi_device *device)
{
- struct acpi_scan_handler *handler;
+ struct acpi_hardware_id *hwid;
+ int ret = 0;
- list_for_each_entry(handler, &acpi_scan_handlers_list, list_node) {
+ list_for_each_entry(hwid, &device->pnp.ids, list) {
const struct acpi_device_id *devid;
+ struct acpi_scan_handler *handler;
- for (devid = handler->ids; devid->id[0]; devid++) {
- int ret;
-
- if (strcmp((char *)devid->id, id))
- continue;
-
+ handler = acpi_scan_match_handler(hwid->id, &devid);
+ if (handler) {
ret = handler->attach(device, devid);
if (ret > 0) {
device->handler = handler;
- return ret;
+ break;
} else if (ret < 0) {
- return ret;
+ break;
}
}
}
- return 0;
-}
-
-static int acpi_scan_attach_handler(struct acpi_device *device)
-{
- struct acpi_hardware_id *hwid;
- int ret = 0;
-
- list_for_each_entry(hwid, &device->pnp.ids, list) {
- ret = acpi_scan_do_attach_handler(device, hwid->id);
- if (ret)
- break;
-
- }
return ret;
}
@@ -1788,8 +2041,10 @@ int __init acpi_scan_init(void)
acpi_pci_root_init();
acpi_pci_link_init();
acpi_platform_init();
+ acpi_lpss_init();
acpi_csrt_init();
acpi_container_init();
+ acpi_memory_hotplug_init();
mutex_lock(&acpi_scan_lock);
/*
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 41c0504470d..fcae5fa2e1b 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -7,6 +7,8 @@
#include <linux/moduleparam.h>
#include <acpi/acpi_drivers.h>
+#include "internal.h"
+
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("sysfs");
@@ -249,6 +251,7 @@ module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
static LIST_HEAD(acpi_table_attr_list);
static struct kobject *tables_kobj;
static struct kobject *dynamic_tables_kobj;
+static struct kobject *hotplug_kobj;
struct acpi_table_attr {
struct bin_attribute attr;
@@ -716,6 +719,67 @@ acpi_show_profile(struct device *dev, struct device_attribute *attr,
static const struct device_attribute pm_profile_attr =
__ATTR(pm_profile, S_IRUGO, acpi_show_profile, NULL);
+static ssize_t hotplug_enabled_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
+
+ return sprintf(buf, "%d\n", hotplug->enabled);
+}
+
+static ssize_t hotplug_enabled_store(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ const char *buf, size_t size)
+{
+ struct acpi_hotplug_profile *hotplug = to_acpi_hotplug_profile(kobj);
+ unsigned int val;
+
+ if (kstrtouint(buf, 10, &val) || val > 1)
+ return -EINVAL;
+
+ acpi_scan_hotplug_enabled(hotplug, val);
+ return size;
+}
+
+static struct kobj_attribute hotplug_enabled_attr =
+ __ATTR(enabled, S_IRUGO | S_IWUSR, hotplug_enabled_show,
+ hotplug_enabled_store);
+
+static struct attribute *hotplug_profile_attrs[] = {
+ &hotplug_enabled_attr.attr,
+ NULL
+};
+
+static struct kobj_type acpi_hotplug_profile_ktype = {
+ .sysfs_ops = &kobj_sysfs_ops,
+ .default_attrs = hotplug_profile_attrs,
+};
+
+void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
+ const char *name)
+{
+ int error;
+
+ if (!hotplug_kobj)
+ goto err_out;
+
+ kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype);
+ error = kobject_set_name(&hotplug->kobj, "%s", name);
+ if (error)
+ goto err_out;
+
+ hotplug->kobj.parent = hotplug_kobj;
+ error = kobject_add(&hotplug->kobj, hotplug_kobj, NULL);
+ if (error)
+ goto err_out;
+
+ kobject_uevent(&hotplug->kobj, KOBJ_ADD);
+ return;
+
+ err_out:
+ pr_err(PREFIX "Unable to add hotplug profile '%s'\n", name);
+}
+
int __init acpi_sysfs_init(void)
{
int result;
@@ -723,6 +787,8 @@ int __init acpi_sysfs_init(void)
result = acpi_tables_sysfs_init();
if (result)
return result;
+
+ hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj);
result = sysfs_create_file(acpi_kobj, &pm_profile_attr.attr);
return result;
}
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 8470771e5ea..a33821ca389 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -723,9 +723,19 @@ static int thermal_get_trend(struct thermal_zone_device *thermal,
return -EINVAL;
if (type == THERMAL_TRIP_ACTIVE) {
- /* aggressive active cooling */
- *trend = THERMAL_TREND_RAISING;
- return 0;
+ unsigned long trip_temp;
+ unsigned long temp = KELVIN_TO_MILLICELSIUS(tz->temperature,
+ tz->kelvin_offset);
+ if (thermal_get_trip_temp(thermal, trip, &trip_temp))
+ return -EINVAL;
+
+ if (temp > trip_temp) {
+ *trend = THERMAL_TREND_RAISING;
+ return 0;
+ } else {
+ /* Fall back on default trend */
+ return -EINVAL;
+ }
}
/*
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 313f959413d..c3932d0876e 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -167,7 +167,8 @@ struct acpi_video_device_flags {
u8 dvi:1;
u8 bios:1;
u8 unknown:1;
- u8 reserved:2;
+ u8 notify:1;
+ u8 reserved:1;
};
struct acpi_video_device_cap {
@@ -222,7 +223,7 @@ static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
int level);
static int acpi_video_device_lcd_get_level_current(
struct acpi_video_device *device,
- unsigned long long *level, int init);
+ unsigned long long *level, bool raw);
static int acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event);
static int acpi_video_switch_brightness(struct acpi_video_device *device,
@@ -236,7 +237,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
struct acpi_video_device *vd =
(struct acpi_video_device *)bl_get_data(bd);
- if (acpi_video_device_lcd_get_level_current(vd, &cur_level, 0))
+ if (acpi_video_device_lcd_get_level_current(vd, &cur_level, false))
return -EINVAL;
for (i = 2; i < vd->brightness->count; i++) {
if (vd->brightness->levels[i] == cur_level)
@@ -281,7 +282,7 @@ static int video_get_cur_state(struct thermal_cooling_device *cooling_dev, unsig
unsigned long long level;
int offset;
- if (acpi_video_device_lcd_get_level_current(video, &level, 0))
+ if (acpi_video_device_lcd_get_level_current(video, &level, false))
return -EINVAL;
for (offset = 2; offset < video->brightness->count; offset++)
if (level == video->brightness->levels[offset]) {
@@ -447,12 +448,45 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
},
},
+ {
+ .callback = video_ignore_initial_backlight,
+ .ident = "HP Pavilion dm4",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
+ },
+ },
{}
};
+static unsigned long long
+acpi_video_bqc_value_to_level(struct acpi_video_device *device,
+ unsigned long long bqc_value)
+{
+ unsigned long long level;
+
+ if (device->brightness->flags._BQC_use_index) {
+ /*
+ * _BQC returns an index that doesn't account for
+ * the first 2 items with special meaning, so we need
+ * to compensate for that by offsetting ourselves
+ */
+ if (device->brightness->flags._BCL_reversed)
+ bqc_value = device->brightness->count - 3 - bqc_value;
+
+ level = device->brightness->levels[bqc_value + 2];
+ } else {
+ level = bqc_value;
+ }
+
+ level += bqc_offset_aml_bug_workaround;
+
+ return level;
+}
+
static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
- unsigned long long *level, int init)
+ unsigned long long *level, bool raw)
{
acpi_status status = AE_OK;
int i;
@@ -463,29 +497,30 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
status = acpi_evaluate_integer(device->dev->handle, buf,
NULL, level);
if (ACPI_SUCCESS(status)) {
- if (device->brightness->flags._BQC_use_index) {
- if (device->brightness->flags._BCL_reversed)
- *level = device->brightness->count
- - 3 - (*level);
- *level = device->brightness->levels[*level + 2];
-
+ if (raw) {
+ /*
+ * Caller has indicated he wants the raw
+ * value returned by _BQC, so don't furtherly
+ * mess with the value.
+ */
+ return 0;
}
- *level += bqc_offset_aml_bug_workaround;
+
+ *level = acpi_video_bqc_value_to_level(device, *level);
+
for (i = 2; i < device->brightness->count; i++)
if (device->brightness->levels[i] == *level) {
device->brightness->curr = *level;
return 0;
}
- if (!init) {
- /*
- * BQC returned an invalid level.
- * Stop using it.
- */
- ACPI_WARNING((AE_INFO,
- "%s returned an invalid level",
- buf));
- device->cap._BQC = device->cap._BCQ = 0;
- }
+ /*
+ * BQC returned an invalid level.
+ * Stop using it.
+ */
+ ACPI_WARNING((AE_INFO,
+ "%s returned an invalid level",
+ buf));
+ device->cap._BQC = device->cap._BCQ = 0;
} else {
/* Fixme:
* should we return an error or ignore this failure?
@@ -598,6 +633,56 @@ acpi_video_cmp_level(const void *a, const void *b)
}
/*
+ * Decides if _BQC/_BCQ for this system is usable
+ *
+ * We do this by changing the level first and then read out the current
+ * brightness level, if the value does not match, find out if it is using
+ * index. If not, clear the _BQC/_BCQ capability.
+ */
+static int acpi_video_bqc_quirk(struct acpi_video_device *device,
+ int max_level, int current_level)
+{
+ struct acpi_video_device_brightness *br = device->brightness;
+ int result;
+ unsigned long long level;
+ int test_level;
+
+ /* don't mess with existing known broken systems */
+ if (bqc_offset_aml_bug_workaround)
+ return 0;
+
+ /*
+ * Some systems always report current brightness level as maximum
+ * through _BQC, we need to test another value for them.
+ */
+ test_level = current_level == max_level ? br->levels[2] : max_level;
+
+ result = acpi_video_device_lcd_set_level(device, test_level);
+ if (result)
+ return result;
+
+ result = acpi_video_device_lcd_get_level_current(device, &level, true);
+ if (result)
+ return result;
+
+ if (level != test_level) {
+ /* buggy _BQC found, need to find out if it uses index */
+ if (level < br->count) {
+ if (br->flags._BCL_reversed)
+ level = br->count - 3 - level;
+ if (br->levels[level + 2] == test_level)
+ br->flags._BQC_use_index = 1;
+ }
+
+ if (!br->flags._BQC_use_index)
+ device->cap._BQC = device->cap._BCQ = 0;
+ }
+
+ return 0;
+}
+
+
+/*
* Arg:
* device : video output device (LCD, CRT, ..)
*
@@ -703,42 +788,36 @@ acpi_video_init_brightness(struct acpi_video_device *device)
if (!device->cap._BQC)
goto set_level;
- result = acpi_video_device_lcd_get_level_current(device, &level_old, 1);
- if (result)
- goto out_free_levels;
-
- /*
- * Set the level to maximum and check if _BQC uses indexed value
- */
- result = acpi_video_device_lcd_set_level(device, max_level);
+ result = acpi_video_device_lcd_get_level_current(device,
+ &level_old, true);
if (result)
goto out_free_levels;
- result = acpi_video_device_lcd_get_level_current(device, &level, 0);
+ result = acpi_video_bqc_quirk(device, max_level, level_old);
if (result)
goto out_free_levels;
+ /*
+ * cap._BQC may get cleared due to _BQC is found to be broken
+ * in acpi_video_bqc_quirk, so check again here.
+ */
+ if (!device->cap._BQC)
+ goto set_level;
- br->flags._BQC_use_index = (level == max_level ? 0 : 1);
-
- if (!br->flags._BQC_use_index) {
+ if (use_bios_initial_backlight) {
+ level = acpi_video_bqc_value_to_level(device, level_old);
/*
- * Set the backlight to the initial state.
- * On some buggy laptops, _BQC returns an uninitialized value
- * when invoked for the first time, i.e. level_old is invalid.
- * set the backlight to max_level in this case
+ * On some buggy laptops, _BQC returns an uninitialized
+ * value when invoked for the first time, i.e.
+ * level_old is invalid (no matter whether it's a level
+ * or an index). Set the backlight to max_level in this case.
*/
- if (use_bios_initial_backlight) {
- for (i = 2; i < br->count; i++)
- if (level_old == br->levels[i])
- level = level_old;
- }
- goto set_level;
+ for (i = 2; i < br->count; i++)
+ if (level_old == br->levels[i])
+ break;
+ if (i == br->count)
+ level = max_level;
}
- if (br->flags._BCL_reversed)
- level_old = (br->count - 1) - level_old;
- level = br->levels[level_old];
-
set_level:
result = acpi_video_device_lcd_set_level(device, level);
if (result)
@@ -996,53 +1075,51 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
struct acpi_video_device *data;
struct acpi_video_device_attrib* attribute;
- if (!device || !video)
- return -EINVAL;
-
status =
acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
- if (ACPI_SUCCESS(status)) {
-
- data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
- strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
- device->driver_data = data;
-
- data->device_id = device_id;
- data->video = video;
- data->dev = device;
+ /* Some device omits _ADR, we skip them instead of fail */
+ if (ACPI_FAILURE(status))
+ return 0;
- attribute = acpi_video_get_device_attr(video, device_id);
+ data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- if((attribute != NULL) && attribute->device_id_scheme) {
- switch (attribute->display_type) {
- case ACPI_VIDEO_DISPLAY_CRT:
- data->flags.crt = 1;
- break;
- case ACPI_VIDEO_DISPLAY_TV:
- data->flags.tvout = 1;
- break;
- case ACPI_VIDEO_DISPLAY_DVI:
- data->flags.dvi = 1;
- break;
- case ACPI_VIDEO_DISPLAY_LCD:
- data->flags.lcd = 1;
- break;
- default:
- data->flags.unknown = 1;
- break;
- }
- if(attribute->bios_can_detect)
- data->flags.bios = 1;
- } else {
- /* Check for legacy IDs */
- device_type = acpi_video_get_device_type(video,
- device_id);
- /* Ignore bits 16 and 18-20 */
- switch (device_type & 0xffe2ffff) {
+ strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
+ device->driver_data = data;
+
+ data->device_id = device_id;
+ data->video = video;
+ data->dev = device;
+
+ attribute = acpi_video_get_device_attr(video, device_id);
+
+ if((attribute != NULL) && attribute->device_id_scheme) {
+ switch (attribute->display_type) {
+ case ACPI_VIDEO_DISPLAY_CRT:
+ data->flags.crt = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_TV:
+ data->flags.tvout = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_DVI:
+ data->flags.dvi = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_LCD:
+ data->flags.lcd = 1;
+ break;
+ default:
+ data->flags.unknown = 1;
+ break;
+ }
+ if(attribute->bios_can_detect)
+ data->flags.bios = 1;
+ } else {
+ /* Check for legacy IDs */
+ device_type = acpi_video_get_device_type(video, device_id);
+ /* Ignore bits 16 and 18-20 */
+ switch (device_type & 0xffe2ffff) {
case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR:
data->flags.crt = 1;
break;
@@ -1054,34 +1131,24 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
break;
default:
data->flags.unknown = 1;
- }
}
+ }
- acpi_video_device_bind(video, data);
- acpi_video_device_find_cap(data);
-
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_video_device_notify,
- data);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX
- "Error installing notify handler\n");
- if(data->brightness)
- kfree(data->brightness->levels);
- kfree(data->brightness);
- kfree(data);
- return -ENODEV;
- }
+ acpi_video_device_bind(video, data);
+ acpi_video_device_find_cap(data);
- mutex_lock(&video->device_list_lock);
- list_add_tail(&data->entry, &video->video_device_list);
- mutex_unlock(&video->device_list_lock);
+ status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
+ acpi_video_device_notify, data);
+ if (ACPI_FAILURE(status))
+ dev_err(&device->dev, "Error installing notify handler\n");
+ else
+ data->flags.notify = 1;
- return 0;
- }
+ mutex_lock(&video->device_list_lock);
+ list_add_tail(&data->entry, &video->video_device_list);
+ mutex_unlock(&video->device_list_lock);
- return -ENOENT;
+ return status;
}
/*
@@ -1268,7 +1335,8 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
goto out;
result = acpi_video_device_lcd_get_level_current(device,
- &level_current, 0);
+ &level_current,
+ false);
if (result)
goto out;
@@ -1373,9 +1441,8 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
status = acpi_video_bus_get_one_device(dev, video);
if (status) {
- printk(KERN_WARNING PREFIX
- "Can't attach device\n");
- continue;
+ dev_err(&dev->dev, "Can't attach device\n");
+ break;
}
}
return status;
@@ -1388,13 +1455,14 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
if (!device || !device->video)
return -ENOENT;
- status = acpi_remove_notify_handler(device->dev->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_video_device_notify);
- if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING PREFIX
- "Can't remove video notify handler\n");
+ if (device->flags.notify) {
+ status = acpi_remove_notify_handler(device->dev->handle,
+ ACPI_DEVICE_NOTIFY, acpi_video_device_notify);
+ if (ACPI_FAILURE(status))
+ dev_err(&device->dev->dev,
+ "Can't remove video notify handler\n");
}
+
if (device->backlight) {
backlight_device_unregister(device->backlight);
device->backlight = NULL;
@@ -1676,7 +1744,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
error = acpi_video_bus_get_devices(video, device);
if (error)
- goto err_free_video;
+ goto err_put_video;
video->input = input = input_allocate_device();
if (!input) {
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 4ac2593234e..66f67626f02 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -67,40 +67,37 @@ acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,
return 0;
}
-/* Returns true if the device is a video device which can be handled by
- * video.ko.
+/* Returns true if the ACPI object is a video device which can be
+ * handled by video.ko.
* The device will get a Linux specific CID added in scan.c to
* identify the device as an ACPI graphics device
* Be aware that the graphics device may not be physically present
* Use acpi_video_get_capabilities() to detect general ACPI video
* capabilities of present cards
*/
-long acpi_is_video_device(struct acpi_device *device)
+long acpi_is_video_device(acpi_handle handle)
{
acpi_handle h_dummy;
long video_caps = 0;
- if (!device)
- return 0;
-
/* Is this device able to support video switching ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) ||
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy)))
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_DOD", &h_dummy)) ||
+ ACPI_SUCCESS(acpi_get_handle(handle, "_DOS", &h_dummy)))
video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
/* Is this device able to retrieve a video ROM ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy)))
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_ROM", &h_dummy)))
video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
/* Is this device able to configure which video head to be POSTed ? */
- if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy)))
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_VPO", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(handle, "_GPD", &h_dummy)) &&
+ ACPI_SUCCESS(acpi_get_handle(handle, "_SPD", &h_dummy)))
video_caps |= ACPI_VIDEO_DEVICE_POSTING;
/* Only check for backlight functionality if one of the above hit. */
if (video_caps)
- acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle,
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
ACPI_UINT32_MAX, acpi_backlight_cap_match, NULL,
&video_caps, NULL);
@@ -127,7 +124,7 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
if (!dev)
return AE_OK;
pci_dev_put(dev);
- *cap |= acpi_is_video_device(acpi_dev);
+ *cap |= acpi_is_video_device(handle);
}
return AE_OK;
}
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 9a6b05a3560..7072404c8b6 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -920,7 +920,7 @@ static int pm_genpd_prepare(struct device *dev)
pm_wakeup_event(dev, 0);
if (pm_wakeup_pending()) {
- pm_runtime_put_sync(dev);
+ pm_runtime_put(dev);
return -EBUSY;
}
@@ -961,7 +961,7 @@ static int pm_genpd_prepare(struct device *dev)
pm_runtime_enable(dev);
}
- pm_runtime_put_sync(dev);
+ pm_runtime_put(dev);
return ret;
}
@@ -1327,7 +1327,7 @@ static void pm_genpd_complete(struct device *dev)
pm_generic_complete(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
- pm_runtime_idle(dev);
+ pm_request_idle(dev);
}
}
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c
index d03d290f31c..bfd898b8988 100644
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -324,6 +324,6 @@ void pm_generic_complete(struct device *dev)
* Let runtime PM try to suspend devices that haven't been in use before
* going into the system-wide sleep state we're resuming from.
*/
- pm_runtime_idle(dev);
+ pm_request_idle(dev);
}
#endif /* CONFIG_PM_SLEEP */
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 15beb500a4e..5a9b6569dd7 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -756,7 +756,7 @@ static void device_complete(struct device *dev, pm_message_t state)
device_unlock(dev);
- pm_runtime_put_sync(dev);
+ pm_runtime_put(dev);
}
/**
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 32ee0fc7ea5..f0077cb8e24 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -55,6 +55,7 @@
* @rate: Frequency in hertz
* @u_volt: Nominal voltage in microvolts corresponding to this OPP
* @dev_opp: points back to the device_opp struct this opp belongs to
+ * @head: RCU callback head used for deferred freeing
*
* This structure stores the OPP information for a given device.
*/
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 1244930e3d7..ef13ad08afb 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1400,5 +1400,5 @@ void pm_runtime_remove(struct device *dev)
if (dev->power.runtime_status == RPM_ACTIVE)
pm_runtime_set_suspended(dev);
if (dev->power.irq_safe && dev->parent)
- pm_runtime_put_sync(dev->parent);
+ pm_runtime_put(dev->parent);
}
diff --git a/drivers/clk/x86/Makefile b/drivers/clk/x86/Makefile
index f9ba4fab0dd..04781389d0f 100644
--- a/drivers/clk/x86/Makefile
+++ b/drivers/clk/x86/Makefile
@@ -1,2 +1,2 @@
-clk-x86-lpss-objs := clk-lpss.o clk-lpt.o
+clk-x86-lpss-objs := clk-lpt.o
obj-$(CONFIG_X86_INTEL_LPSS) += clk-x86-lpss.o
diff --git a/drivers/clk/x86/clk-lpss.c b/drivers/clk/x86/clk-lpss.c
deleted file mode 100644
index b5e229f3c3d..00000000000
--- a/drivers/clk/x86/clk-lpss.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Intel Low Power Subsystem clocks.
- *
- * Copyright (C) 2013, Intel Corporation
- * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
- * Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/acpi.h>
-#include <linux/clk.h>
-#include <linux/clk-provider.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-
-static int clk_lpss_is_mmio_resource(struct acpi_resource *res, void *data)
-{
- struct resource r;
- return !acpi_dev_resource_memory(res, &r);
-}
-
-static acpi_status clk_lpss_find_mmio(acpi_handle handle, u32 level,
- void *data, void **retval)
-{
- struct resource_list_entry *rentry;
- struct list_head resource_list;
- struct acpi_device *adev;
- const char *uid = data;
- int ret;
-
- if (acpi_bus_get_device(handle, &adev))
- return AE_OK;
-
- if (uid) {
- if (!adev->pnp.unique_id)
- return AE_OK;
- if (strcmp(uid, adev->pnp.unique_id))
- return AE_OK;
- }
-
- INIT_LIST_HEAD(&resource_list);
- ret = acpi_dev_get_resources(adev, &resource_list,
- clk_lpss_is_mmio_resource, NULL);
- if (ret < 0)
- return AE_NO_MEMORY;
-
- list_for_each_entry(rentry, &resource_list, node)
- if (resource_type(&rentry->res) == IORESOURCE_MEM) {
- *(struct resource *)retval = rentry->res;
- break;
- }
-
- acpi_dev_free_resource_list(&resource_list);
- return AE_OK;
-}
-
-/**
- * clk_register_lpss_gate - register LPSS clock gate
- * @name: name of this clock gate
- * @parent_name: parent clock name
- * @hid: ACPI _HID of the device
- * @uid: ACPI _UID of the device (optional)
- * @offset: LPSS PRV_CLOCK_PARAMS offset
- *
- * Creates and registers LPSS clock gate.
- */
-struct clk *clk_register_lpss_gate(const char *name, const char *parent_name,
- const char *hid, const char *uid,
- unsigned offset)
-{
- struct resource res = { };
- void __iomem *mmio_base;
- acpi_status status;
- struct clk *clk;
-
- /*
- * First try to look the device and its mmio resource from the
- * ACPI namespace.
- */
- status = acpi_get_devices(hid, clk_lpss_find_mmio, (void *)uid,
- (void **)&res);
- if (ACPI_FAILURE(status) || !res.start)
- return ERR_PTR(-ENODEV);
-
- mmio_base = ioremap(res.start, resource_size(&res));
- if (!mmio_base)
- return ERR_PTR(-ENOMEM);
-
- clk = clk_register_gate(NULL, name, parent_name, 0, mmio_base + offset,
- 0, 0, NULL);
- if (IS_ERR(clk))
- iounmap(mmio_base);
-
- return clk;
-}
diff --git a/drivers/clk/x86/clk-lpss.h b/drivers/clk/x86/clk-lpss.h
deleted file mode 100644
index e9460f44229..00000000000
--- a/drivers/clk/x86/clk-lpss.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Intel Low Power Subsystem clock.
- *
- * Copyright (C) 2013, Intel Corporation
- * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
- * Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __CLK_LPSS_H
-#define __CLK_LPSS_H
-
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/clk.h>
-
-#ifdef CONFIG_ACPI
-extern struct clk *clk_register_lpss_gate(const char *name,
- const char *parent_name,
- const char *hid, const char *uid,
- unsigned offset);
-#else
-static inline struct clk *clk_register_lpss_gate(const char *name,
- const char *parent_name,
- const char *hid,
- const char *uid,
- unsigned offset)
-{
- return ERR_PTR(-ENODEV);
-}
-#endif
-
-#endif /* __CLK_LPSS_H */
diff --git a/drivers/clk/x86/clk-lpt.c b/drivers/clk/x86/clk-lpt.c
index 81298aeef7e..5cf4f468640 100644
--- a/drivers/clk/x86/clk-lpt.c
+++ b/drivers/clk/x86/clk-lpt.c
@@ -10,7 +10,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
@@ -18,8 +17,6 @@
#include <linux/module.h>
#include <linux/platform_device.h>
-#include "clk-lpss.h"
-
#define PRV_CLOCK_PARAMS 0x800
static int lpt_clk_probe(struct platform_device *pdev)
@@ -34,40 +31,6 @@ static int lpt_clk_probe(struct platform_device *pdev)
/* Shared DMA clock */
clk_register_clkdev(clk, "hclk", "INTL9C60.0.auto");
-
- /* SPI clocks */
- clk = clk_register_lpss_gate("spi0_clk", "lpss_clk", "INT33C0", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C0:00");
-
- clk = clk_register_lpss_gate("spi1_clk", "lpss_clk", "INT33C1", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C1:00");
-
- /* I2C clocks */
- clk = clk_register_lpss_gate("i2c0_clk", "lpss_clk", "INT33C2", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C2:00");
-
- clk = clk_register_lpss_gate("i2c1_clk", "lpss_clk", "INT33C3", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C3:00");
-
- /* UART clocks */
- clk = clk_register_lpss_gate("uart0_clk", "lpss_clk", "INT33C4", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C4:00");
-
- clk = clk_register_lpss_gate("uart1_clk", "lpss_clk", "INT33C5", NULL,
- PRV_CLOCK_PARAMS);
- if (!IS_ERR(clk))
- clk_register_clkdev(clk, NULL, "INT33C5:00");
-
return 0;
}
@@ -79,8 +42,7 @@ static struct platform_driver lpt_clk_driver = {
.probe = lpt_clk_probe,
};
-static int __init lpt_clk_init(void)
+int __init lpt_clk_init(void)
{
return platform_driver_register(&lpt_clk_driver);
}
-arch_initcall(lpt_clk_init);
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index cbcb21e3277..a1488f58f6c 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -205,10 +205,99 @@ depends on ARM
source "drivers/cpufreq/Kconfig.arm"
endmenu
+menu "AVR32 CPU frequency scaling drivers"
+depends on AVR32
+
+config AVR32_AT32AP_CPUFREQ
+ bool "CPU frequency driver for AT32AP"
+ depends on PLATFORM_AT32AP
+ default n
+ help
+ This enables the CPU frequency driver for AT32AP processors.
+ If in doubt, say N.
+
+endmenu
+
+menu "CPUFreq processor drivers"
+depends on IA64
+
+config IA64_ACPI_CPUFREQ
+ tristate "ACPI Processor P-States driver"
+ select CPU_FREQ_TABLE
+ depends on ACPI_PROCESSOR
+ help
+ This driver adds a CPUFreq driver which utilizes the ACPI
+ Processor Performance States.
+
+ For details, take a look at <file:Documentation/cpu-freq/>.
+
+ If in doubt, say N.
+
+endmenu
+
+menu "MIPS CPUFreq processor drivers"
+depends on MIPS
+
+config LOONGSON2_CPUFREQ
+ tristate "Loongson2 CPUFreq Driver"
+ select CPU_FREQ_TABLE
+ help
+ This option adds a CPUFreq driver for loongson processors which
+ support software configurable cpu frequency.
+
+ Loongson2F and it's successors support this feature.
+
+ For details, take a look at <file:Documentation/cpu-freq/>.
+
+ If in doubt, say N.
+
+endmenu
+
menu "PowerPC CPU frequency scaling drivers"
depends on PPC32 || PPC64
source "drivers/cpufreq/Kconfig.powerpc"
endmenu
+menu "SPARC CPU frequency scaling drivers"
+depends on SPARC64
+config SPARC_US3_CPUFREQ
+ tristate "UltraSPARC-III CPU Frequency driver"
+ select CPU_FREQ_TABLE
+ help
+ This adds the CPUFreq driver for UltraSPARC-III processors.
+
+ For details, take a look at <file:Documentation/cpu-freq>.
+
+ If in doubt, say N.
+
+config SPARC_US2E_CPUFREQ
+ tristate "UltraSPARC-IIe CPU Frequency driver"
+ select CPU_FREQ_TABLE
+ help
+ This adds the CPUFreq driver for UltraSPARC-IIe processors.
+
+ For details, take a look at <file:Documentation/cpu-freq>.
+
+ If in doubt, say N.
+endmenu
+
+menu "SH CPU Frequency scaling"
+depends on SUPERH
+config SH_CPU_FREQ
+ tristate "SuperH CPU Frequency driver"
+ select CPU_FREQ_TABLE
+ help
+ This adds the cpufreq driver for SuperH. Any CPU that supports
+ clock rate rounding through the clock framework can use this
+ driver. While it will make the kernel slightly larger, this is
+ harmless for CPUs that don't support rate rounding. The driver
+ will also generate a notice in the boot log before disabling
+ itself if the CPU in question is not capable of rate rounding.
+
+ For details, take a look at <file:Documentation/cpu-freq>.
+
+ If unsure, say N.
+endmenu
+
endif
endmenu
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 030ddf6dd3f..f3af18b9acc 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -2,6 +2,93 @@
# ARM CPU Frequency scaling drivers
#
+config ARM_BIG_LITTLE_CPUFREQ
+ tristate
+ depends on ARM_CPU_TOPOLOGY
+
+config ARM_DT_BL_CPUFREQ
+ tristate "Generic ARM big LITTLE CPUfreq driver probed via DT"
+ select ARM_BIG_LITTLE_CPUFREQ
+ depends on OF && HAVE_CLK
+ help
+ This enables the Generic CPUfreq driver for ARM big.LITTLE platform.
+ This gets frequency tables from DT.
+
+config ARM_EXYNOS_CPUFREQ
+ bool "SAMSUNG EXYNOS SoCs"
+ depends on ARCH_EXYNOS
+ default y
+ help
+ This adds the CPUFreq driver common part for Samsung
+ EXYNOS SoCs.
+
+ If in doubt, say N.
+
+config ARM_EXYNOS4210_CPUFREQ
+ def_bool CPU_EXYNOS4210
+ help
+ This adds the CPUFreq driver for Samsung EXYNOS4210
+ SoC (S5PV310 or S5PC210).
+
+config ARM_EXYNOS4X12_CPUFREQ
+ def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412)
+ help
+ This adds the CPUFreq driver for Samsung EXYNOS4X12
+ SoC (EXYNOS4212 or EXYNOS4412).
+
+config ARM_EXYNOS5250_CPUFREQ
+ def_bool SOC_EXYNOS5250
+ help
+ This adds the CPUFreq driver for Samsung EXYNOS5250
+ SoC.
+
+config ARM_EXYNOS5440_CPUFREQ
+ def_bool SOC_EXYNOS5440
+ depends on HAVE_CLK && PM_OPP && OF
+ help
+ This adds the CPUFreq driver for Samsung EXYNOS5440
+ SoC. The nature of exynos5440 clock controller is
+ different than previous exynos controllers so not using
+ the common exynos framework.
+
+config ARM_HIGHBANK_CPUFREQ
+ tristate "Calxeda Highbank-based"
+ depends on ARCH_HIGHBANK
+ select CPU_FREQ_TABLE
+ select GENERIC_CPUFREQ_CPU0
+ select PM_OPP
+ select REGULATOR
+
+ default m
+ help
+ This adds the CPUFreq driver for Calxeda Highbank SoC
+ based boards.
+
+ If in doubt, say N.
+
+config ARM_IMX6Q_CPUFREQ
+ tristate "Freescale i.MX6Q cpufreq support"
+ depends on SOC_IMX6Q
+ depends on REGULATOR_ANATOP
+ help
+ This adds cpufreq driver support for Freescale i.MX6Q SOC.
+
+ If in doubt, say N.
+
+config ARM_INTEGRATOR
+ tristate "CPUfreq driver for ARM Integrator CPUs"
+ depends on ARCH_INTEGRATOR
+ default y
+ help
+ This enables the CPUfreq driver for ARM Integrator CPUs.
+ If in doubt, say Y.
+
+config ARM_KIRKWOOD_CPUFREQ
+ def_bool ARCH_KIRKWOOD && OF
+ help
+ This adds the CPUFreq driver for Marvell Kirkwood
+ SoCs.
+
config ARM_OMAP2PLUS_CPUFREQ
bool "TI OMAP2+"
depends on ARCH_OMAP2PLUS
@@ -42,6 +129,7 @@ config ARM_S3C64XX_CPUFREQ
config ARM_S5PV210_CPUFREQ
bool "Samsung S5PV210 and S5PC110"
depends on CPU_S5PV210
+ select CPU_FREQ_TABLE
default y
help
This adds the CPUFreq driver for Samsung S5PV210 and
@@ -49,48 +137,11 @@ config ARM_S5PV210_CPUFREQ
If in doubt, say N.
-config ARM_EXYNOS_CPUFREQ
- bool "SAMSUNG EXYNOS SoCs"
- depends on ARCH_EXYNOS
- default y
- help
- This adds the CPUFreq driver common part for Samsung
- EXYNOS SoCs.
-
- If in doubt, say N.
+config ARM_SA1100_CPUFREQ
+ bool
-config ARM_EXYNOS4210_CPUFREQ
- def_bool CPU_EXYNOS4210
- help
- This adds the CPUFreq driver for Samsung EXYNOS4210
- SoC (S5PV310 or S5PC210).
-
-config ARM_EXYNOS4X12_CPUFREQ
- def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412)
- help
- This adds the CPUFreq driver for Samsung EXYNOS4X12
- SoC (EXYNOS4212 or EXYNOS4412).
-
-config ARM_EXYNOS5250_CPUFREQ
- def_bool SOC_EXYNOS5250
- help
- This adds the CPUFreq driver for Samsung EXYNOS5250
- SoC.
-
-config ARM_KIRKWOOD_CPUFREQ
- def_bool ARCH_KIRKWOOD && OF
- help
- This adds the CPUFreq driver for Marvell Kirkwood
- SoCs.
-
-config ARM_IMX6Q_CPUFREQ
- tristate "Freescale i.MX6Q cpufreq support"
- depends on SOC_IMX6Q
- depends on REGULATOR_ANATOP
- help
- This adds cpufreq driver support for Freescale i.MX6Q SOC.
-
- If in doubt, say N.
+config ARM_SA1110_CPUFREQ
+ bool
config ARM_SPEAR_CPUFREQ
bool "SPEAr CPUFreq support"
@@ -98,18 +149,3 @@ config ARM_SPEAR_CPUFREQ
default y
help
This adds the CPUFreq driver support for SPEAr SOCs.
-
-config ARM_HIGHBANK_CPUFREQ
- tristate "Calxeda Highbank-based"
- depends on ARCH_HIGHBANK
- select CPU_FREQ_TABLE
- select GENERIC_CPUFREQ_CPU0
- select PM_OPP
- select REGULATOR
-
- default m
- help
- This adds the CPUFreq driver for Calxeda Highbank SoC
- based boards.
-
- If in doubt, say N.
diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index e76992f7968..9c926ca0d71 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -1,3 +1,21 @@
+config CPU_FREQ_CBE
+ tristate "CBE frequency scaling"
+ depends on CBE_RAS && PPC_CELL
+ default m
+ help
+ This adds the cpufreq driver for Cell BE processors.
+ For details, take a look at <file:Documentation/cpu-freq/>.
+ If you don't have such processor, say N
+
+config CPU_FREQ_CBE_PMI
+ bool "CBE frequency scaling using PMI interface"
+ depends on CPU_FREQ_CBE
+ default n
+ help
+ Select this, if you want to use the PMI interface to switch
+ frequencies. Using PMI, the processor will not only be able to run at
+ lower speed, but also at lower core voltage.
+
config CPU_FREQ_MAPLE
bool "Support for Maple 970FX Evaluation Board"
depends on PPC_MAPLE
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index d7dc0ed6adb..2b8a8c37454 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -129,6 +129,23 @@ config X86_POWERNOW_K8
For details, take a look at <file:Documentation/cpu-freq/>.
+config X86_AMD_FREQ_SENSITIVITY
+ tristate "AMD frequency sensitivity feedback powersave bias"
+ depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD
+ help
+ This adds AMD-specific powersave bias function to the ondemand
+ governor, which allows it to make more power-conscious frequency
+ change decisions based on feedback from hardware (availble on AMD
+ Family 16h and above).
+
+ Hardware feedback tells software how "sensitive" to frequency changes
+ the CPUs' workloads are. CPU-bound workloads will be more sensitive
+ -- they will perform better as frequency increases. Memory/IO-bound
+ workloads will be less sensitive -- they will not necessarily perform
+ better as frequency increases.
+
+ If in doubt, say N.
+
config X86_GX_SUSPMOD
tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
depends on X86_32 && PCI
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 863fd1865d4..315b9231feb 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -41,23 +41,54 @@ obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO) += speedstep-centrino.o
obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o
obj-$(CONFIG_X86_CPUFREQ_NFORCE2) += cpufreq-nforce2.o
obj-$(CONFIG_X86_INTEL_PSTATE) += intel_pstate.o
+obj-$(CONFIG_X86_AMD_FREQ_SENSITIVITY) += amd_freq_sensitivity.o
##################################################################################
# ARM SoC drivers
+obj-$(CONFIG_ARM_BIG_LITTLE_CPUFREQ) += arm_big_little.o
+# big LITTLE per platform glues. Keep DT_BL_CPUFREQ as the last entry in all big
+# LITTLE drivers, so that it is probed last.
+obj-$(CONFIG_ARM_DT_BL_CPUFREQ) += arm_big_little_dt.o
+
+obj-$(CONFIG_ARCH_DAVINCI_DA850) += davinci-cpufreq.o
obj-$(CONFIG_UX500_SOC_DB8500) += dbx500-cpufreq.o
-obj-$(CONFIG_ARM_S3C2416_CPUFREQ) += s3c2416-cpufreq.o
-obj-$(CONFIG_ARM_S3C64XX_CPUFREQ) += s3c64xx-cpufreq.o
-obj-$(CONFIG_ARM_S5PV210_CPUFREQ) += s5pv210-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS_CPUFREQ) += exynos-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS4210_CPUFREQ) += exynos4210-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS4X12_CPUFREQ) += exynos4x12-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS5250_CPUFREQ) += exynos5250-cpufreq.o
+obj-$(CONFIG_ARM_EXYNOS5440_CPUFREQ) += exynos5440-cpufreq.o
+obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ) += highbank-cpufreq.o
+obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o
+obj-$(CONFIG_ARM_INTEGRATOR) += integrator-cpufreq.o
obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ) += kirkwood-cpufreq.o
obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ) += omap-cpufreq.o
+obj-$(CONFIG_PXA25x) += pxa2xx-cpufreq.o
+obj-$(CONFIG_PXA27x) += pxa2xx-cpufreq.o
+obj-$(CONFIG_PXA3xx) += pxa3xx-cpufreq.o
+obj-$(CONFIG_ARM_S3C2416_CPUFREQ) += s3c2416-cpufreq.o
+obj-$(CONFIG_ARM_S3C64XX_CPUFREQ) += s3c64xx-cpufreq.o
+obj-$(CONFIG_ARM_S5PV210_CPUFREQ) += s5pv210-cpufreq.o
+obj-$(CONFIG_ARM_SA1100_CPUFREQ) += sa1100-cpufreq.o
+obj-$(CONFIG_ARM_SA1110_CPUFREQ) += sa1110-cpufreq.o
obj-$(CONFIG_ARM_SPEAR_CPUFREQ) += spear-cpufreq.o
-obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ) += highbank-cpufreq.o
-obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o
+obj-$(CONFIG_ARCH_TEGRA) += tegra-cpufreq.o
##################################################################################
# PowerPC platform drivers
+obj-$(CONFIG_CPU_FREQ_CBE) += ppc-cbe-cpufreq.o
+ppc-cbe-cpufreq-y += ppc_cbe_cpufreq_pervasive.o ppc_cbe_cpufreq.o
+obj-$(CONFIG_CPU_FREQ_CBE_PMI) += ppc_cbe_cpufreq_pmi.o
obj-$(CONFIG_CPU_FREQ_MAPLE) += maple-cpufreq.o
+
+##################################################################################
+# Other platform drivers
+obj-$(CONFIG_AVR32_AT32AP_CPUFREQ) += at32ap-cpufreq.o
+obj-$(CONFIG_BLACKFIN) += blackfin-cpufreq.o
+obj-$(CONFIG_CRIS_MACH_ARTPEC3) += cris-artpec3-cpufreq.o
+obj-$(CONFIG_ETRAXFS) += cris-etraxfs-cpufreq.o
+obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o
+obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
+obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o
+obj-$(CONFIG_SPARC_US2E_CPUFREQ) += sparc-us2e-cpufreq.o
+obj-$(CONFIG_SPARC_US3_CPUFREQ) += sparc-us3-cpufreq.o
+obj-$(CONFIG_UNICORE32) += unicore2-cpufreq.o
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 57a8774f0b4..11b8b4b54ce 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -423,7 +423,6 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
struct drv_cmd cmd;
unsigned int next_state = 0; /* Index into freq_table */
unsigned int next_perf_state = 0; /* Index into perf table */
- unsigned int i;
int result = 0;
pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu);
@@ -486,10 +485,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = perf->states[perf->state].core_frequency * 1000;
freqs.new = data->freq_table[next_state].frequency;
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
drv_write(&cmd);
@@ -502,10 +498,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
}
}
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
perf->state = next_perf_state;
out:
diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c
new file mode 100644
index 00000000000..f6b79ab0070
--- /dev/null
+++ b/drivers/cpufreq/amd_freq_sensitivity.c
@@ -0,0 +1,148 @@
+/*
+ * amd_freq_sensitivity.c: AMD frequency sensitivity feedback powersave bias
+ * for the ondemand governor.
+ *
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Jacob Shin <jacob.shin@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/percpu-defs.h>
+#include <linux/init.h>
+#include <linux/mod_devicetable.h>
+
+#include <asm/msr.h>
+#include <asm/cpufeature.h>
+
+#include "cpufreq_governor.h"
+
+#define MSR_AMD64_FREQ_SENSITIVITY_ACTUAL 0xc0010080
+#define MSR_AMD64_FREQ_SENSITIVITY_REFERENCE 0xc0010081
+#define CLASS_CODE_SHIFT 56
+#define POWERSAVE_BIAS_MAX 1000
+#define POWERSAVE_BIAS_DEF 400
+
+struct cpu_data_t {
+ u64 actual;
+ u64 reference;
+ unsigned int freq_prev;
+};
+
+static DEFINE_PER_CPU(struct cpu_data_t, cpu_data);
+
+static unsigned int amd_powersave_bias_target(struct cpufreq_policy *policy,
+ unsigned int freq_next,
+ unsigned int relation)
+{
+ int sensitivity;
+ long d_actual, d_reference;
+ struct msr actual, reference;
+ struct cpu_data_t *data = &per_cpu(cpu_data, policy->cpu);
+ struct dbs_data *od_data = policy->governor_data;
+ struct od_dbs_tuners *od_tuners = od_data->tuners;
+ struct od_cpu_dbs_info_s *od_info =
+ od_data->cdata->get_cpu_dbs_info_s(policy->cpu);
+
+ if (!od_info->freq_table)
+ return freq_next;
+
+ rdmsr_on_cpu(policy->cpu, MSR_AMD64_FREQ_SENSITIVITY_ACTUAL,
+ &actual.l, &actual.h);
+ rdmsr_on_cpu(policy->cpu, MSR_AMD64_FREQ_SENSITIVITY_REFERENCE,
+ &reference.l, &reference.h);
+ actual.h &= 0x00ffffff;
+ reference.h &= 0x00ffffff;
+
+ /* counter wrapped around, so stay on current frequency */
+ if (actual.q < data->actual || reference.q < data->reference) {
+ freq_next = policy->cur;
+ goto out;
+ }
+
+ d_actual = actual.q - data->actual;
+ d_reference = reference.q - data->reference;
+
+ /* divide by 0, so stay on current frequency as well */
+ if (d_reference == 0) {
+ freq_next = policy->cur;
+ goto out;
+ }
+
+ sensitivity = POWERSAVE_BIAS_MAX -
+ (POWERSAVE_BIAS_MAX * (d_reference - d_actual) / d_reference);
+
+ clamp(sensitivity, 0, POWERSAVE_BIAS_MAX);
+
+ /* this workload is not CPU bound, so choose a lower freq */
+ if (sensitivity < od_tuners->powersave_bias) {
+ if (data->freq_prev == policy->cur)
+ freq_next = policy->cur;
+
+ if (freq_next > policy->cur)
+ freq_next = policy->cur;
+ else if (freq_next < policy->cur)
+ freq_next = policy->min;
+ else {
+ unsigned int index;
+
+ cpufreq_frequency_table_target(policy,
+ od_info->freq_table, policy->cur - 1,
+ CPUFREQ_RELATION_H, &index);
+ freq_next = od_info->freq_table[index].frequency;
+ }
+
+ data->freq_prev = freq_next;
+ } else
+ data->freq_prev = 0;
+
+out:
+ data->actual = actual.q;
+ data->reference = reference.q;
+ return freq_next;
+}
+
+static int __init amd_freq_sensitivity_init(void)
+{
+ u64 val;
+
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ return -ENODEV;
+
+ if (!static_cpu_has(X86_FEATURE_PROC_FEEDBACK))
+ return -ENODEV;
+
+ if (rdmsrl_safe(MSR_AMD64_FREQ_SENSITIVITY_ACTUAL, &val))
+ return -ENODEV;
+
+ if (!(val >> CLASS_CODE_SHIFT))
+ return -ENODEV;
+
+ od_register_powersave_bias_handler(amd_powersave_bias_target,
+ POWERSAVE_BIAS_DEF);
+ return 0;
+}
+late_initcall(amd_freq_sensitivity_init);
+
+static void __exit amd_freq_sensitivity_exit(void)
+{
+ od_unregister_powersave_bias_handler();
+}
+module_exit(amd_freq_sensitivity_exit);
+
+static const struct x86_cpu_id amd_freq_sensitivity_ids[] = {
+ X86_FEATURE_MATCH(X86_FEATURE_PROC_FEEDBACK),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, amd_freq_sensitivity_ids);
+
+MODULE_AUTHOR("Jacob Shin <jacob.shin@amd.com>");
+MODULE_DESCRIPTION("AMD frequency sensitivity feedback powersave bias for "
+ "the ondemand governor.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
new file mode 100644
index 00000000000..dbdf677d2f3
--- /dev/null
+++ b/drivers/cpufreq/arm_big_little.c
@@ -0,0 +1,278 @@
+/*
+ * ARM big.LITTLE Platforms CPUFreq support
+ *
+ * Copyright (C) 2013 ARM Ltd.
+ * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
+ *
+ * Copyright (C) 2013 Linaro.
+ * Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/clk.h>
+#include <linux/cpu.h>
+#include <linux/cpufreq.h>
+#include <linux/cpumask.h>
+#include <linux/export.h>
+#include <linux/of_platform.h>
+#include <linux/opp.h>
+#include <linux/slab.h>
+#include <linux/topology.h>
+#include <linux/types.h>
+
+#include "arm_big_little.h"
+
+/* Currently we support only two clusters */
+#define MAX_CLUSTERS 2
+
+static struct cpufreq_arm_bL_ops *arm_bL_ops;
+static struct clk *clk[MAX_CLUSTERS];
+static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS];
+static atomic_t cluster_usage[MAX_CLUSTERS] = {ATOMIC_INIT(0), ATOMIC_INIT(0)};
+
+static int cpu_to_cluster(int cpu)
+{
+ return topology_physical_package_id(cpu);
+}
+
+static unsigned int bL_cpufreq_get(unsigned int cpu)
+{
+ u32 cur_cluster = cpu_to_cluster(cpu);
+
+ return clk_get_rate(clk[cur_cluster]) / 1000;
+}
+
+/* Validate policy frequency range */
+static int bL_cpufreq_verify_policy(struct cpufreq_policy *policy)
+{
+ u32 cur_cluster = cpu_to_cluster(policy->cpu);
+
+ return cpufreq_frequency_table_verify(policy, freq_table[cur_cluster]);
+}
+
+/* Set clock frequency */
+static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
+ unsigned int target_freq, unsigned int relation)
+{
+ struct cpufreq_freqs freqs;
+ u32 cpu = policy->cpu, freq_tab_idx, cur_cluster;
+ int ret = 0;
+
+ cur_cluster = cpu_to_cluster(policy->cpu);
+
+ freqs.old = bL_cpufreq_get(policy->cpu);
+
+ /* Determine valid target frequency using freq_table */
+ cpufreq_frequency_table_target(policy, freq_table[cur_cluster],
+ target_freq, relation, &freq_tab_idx);
+ freqs.new = freq_table[cur_cluster][freq_tab_idx].frequency;
+
+ pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n",
+ __func__, cpu, cur_cluster, freqs.old, target_freq,
+ freqs.new);
+
+ if (freqs.old == freqs.new)
+ return 0;
+
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+
+ ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
+ if (ret) {
+ pr_err("clk_set_rate failed: %d\n", ret);
+ return ret;
+ }
+
+ policy->cur = freqs.new;
+
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+
+ return ret;
+}
+
+static void put_cluster_clk_and_freq_table(struct device *cpu_dev)
+{
+ u32 cluster = cpu_to_cluster(cpu_dev->id);
+
+ if (!atomic_dec_return(&cluster_usage[cluster])) {
+ clk_put(clk[cluster]);
+ opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
+ }
+}
+
+static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
+{
+ u32 cluster = cpu_to_cluster(cpu_dev->id);
+ char name[14] = "cpu-cluster.";
+ int ret;
+
+ if (atomic_inc_return(&cluster_usage[cluster]) != 1)
+ return 0;
+
+ ret = arm_bL_ops->init_opp_table(cpu_dev);
+ if (ret) {
+ dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n",
+ __func__, cpu_dev->id, ret);
+ goto atomic_dec;
+ }
+
+ ret = opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ if (ret) {
+ dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
+ __func__, cpu_dev->id, ret);
+ goto atomic_dec;
+ }
+
+ name[12] = cluster + '0';
+ clk[cluster] = clk_get_sys(name, NULL);
+ if (!IS_ERR(clk[cluster])) {
+ dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n",
+ __func__, clk[cluster], freq_table[cluster],
+ cluster);
+ return 0;
+ }
+
+ dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n",
+ __func__, cpu_dev->id, cluster);
+ ret = PTR_ERR(clk[cluster]);
+ opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+
+atomic_dec:
+ atomic_dec(&cluster_usage[cluster]);
+ dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__,
+ cluster);
+ return ret;
+}
+
+/* Per-CPU initialization */
+static int bL_cpufreq_init(struct cpufreq_policy *policy)
+{
+ u32 cur_cluster = cpu_to_cluster(policy->cpu);
+ struct device *cpu_dev;
+ int ret;
+
+ cpu_dev = get_cpu_device(policy->cpu);
+ if (!cpu_dev) {
+ pr_err("%s: failed to get cpu%d device\n", __func__,
+ policy->cpu);
+ return -ENODEV;
+ }
+
+ ret = get_cluster_clk_and_freq_table(cpu_dev);
+ if (ret)
+ return ret;
+
+ ret = cpufreq_frequency_table_cpuinfo(policy, freq_table[cur_cluster]);
+ if (ret) {
+ dev_err(cpu_dev, "CPU %d, cluster: %d invalid freq table\n",
+ policy->cpu, cur_cluster);
+ put_cluster_clk_and_freq_table(cpu_dev);
+ return ret;
+ }
+
+ cpufreq_frequency_table_get_attr(freq_table[cur_cluster], policy->cpu);
+
+ if (arm_bL_ops->get_transition_latency)
+ policy->cpuinfo.transition_latency =
+ arm_bL_ops->get_transition_latency(cpu_dev);
+ else
+ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+
+ policy->cur = bL_cpufreq_get(policy->cpu);
+
+ cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+
+ dev_info(cpu_dev, "CPU %d initialized\n", policy->cpu);
+ return 0;
+}
+
+static int bL_cpufreq_exit(struct cpufreq_policy *policy)
+{
+ struct device *cpu_dev;
+
+ cpu_dev = get_cpu_device(policy->cpu);
+ if (!cpu_dev) {
+ pr_err("%s: failed to get cpu%d device\n", __func__,
+ policy->cpu);
+ return -ENODEV;
+ }
+
+ put_cluster_clk_and_freq_table(cpu_dev);
+ dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu);
+
+ return 0;
+}
+
+/* Export freq_table to sysfs */
+static struct freq_attr *bL_cpufreq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+
+static struct cpufreq_driver bL_cpufreq_driver = {
+ .name = "arm-big-little",
+ .flags = CPUFREQ_STICKY,
+ .verify = bL_cpufreq_verify_policy,
+ .target = bL_cpufreq_set_target,
+ .get = bL_cpufreq_get,
+ .init = bL_cpufreq_init,
+ .exit = bL_cpufreq_exit,
+ .have_governor_per_policy = true,
+ .attr = bL_cpufreq_attr,
+};
+
+int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
+{
+ int ret;
+
+ if (arm_bL_ops) {
+ pr_debug("%s: Already registered: %s, exiting\n", __func__,
+ arm_bL_ops->name);
+ return -EBUSY;
+ }
+
+ if (!ops || !strlen(ops->name) || !ops->init_opp_table) {
+ pr_err("%s: Invalid arm_bL_ops, exiting\n", __func__);
+ return -ENODEV;
+ }
+
+ arm_bL_ops = ops;
+
+ ret = cpufreq_register_driver(&bL_cpufreq_driver);
+ if (ret) {
+ pr_info("%s: Failed registering platform driver: %s, err: %d\n",
+ __func__, ops->name, ret);
+ arm_bL_ops = NULL;
+ } else {
+ pr_info("%s: Registered platform driver: %s\n", __func__,
+ ops->name);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(bL_cpufreq_register);
+
+void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops)
+{
+ if (arm_bL_ops != ops) {
+ pr_err("%s: Registered with: %s, can't unregister, exiting\n",
+ __func__, arm_bL_ops->name);
+ return;
+ }
+
+ cpufreq_unregister_driver(&bL_cpufreq_driver);
+ pr_info("%s: Un-registered platform driver: %s\n", __func__,
+ arm_bL_ops->name);
+ arm_bL_ops = NULL;
+}
+EXPORT_SYMBOL_GPL(bL_cpufreq_unregister);
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
new file mode 100644
index 00000000000..70f18fc12d4
--- /dev/null
+++ b/drivers/cpufreq/arm_big_little.h
@@ -0,0 +1,40 @@
+/*
+ * ARM big.LITTLE platform's CPUFreq header file
+ *
+ * Copyright (C) 2013 ARM Ltd.
+ * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
+ *
+ * Copyright (C) 2013 Linaro.
+ * Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef CPUFREQ_ARM_BIG_LITTLE_H
+#define CPUFREQ_ARM_BIG_LITTLE_H
+
+#include <linux/cpufreq.h>
+#include <linux/device.h>
+#include <linux/types.h>
+
+struct cpufreq_arm_bL_ops {
+ char name[CPUFREQ_NAME_LEN];
+ int (*get_transition_latency)(struct device *cpu_dev);
+
+ /*
+ * This must set opp table for cpu_dev in a similar way as done by
+ * of_init_opp_table().
+ */
+ int (*init_opp_table)(struct device *cpu_dev);
+};
+
+int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
+void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);
+
+#endif /* CPUFREQ_ARM_BIG_LITTLE_H */
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
new file mode 100644
index 00000000000..44be3115375
--- /dev/null
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -0,0 +1,107 @@
+/*
+ * Generic big.LITTLE CPUFreq Interface driver
+ *
+ * It provides necessary ops to arm_big_little cpufreq driver and gets
+ * Frequency information from Device Tree. Freq table in DT must be in KHz.
+ *
+ * Copyright (C) 2013 Linaro.
+ * Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/cpufreq.h>
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/opp.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include "arm_big_little.h"
+
+static int dt_init_opp_table(struct device *cpu_dev)
+{
+ struct device_node *np, *parent;
+ int count = 0, ret;
+
+ parent = of_find_node_by_path("/cpus");
+ if (!parent) {
+ pr_err("failed to find OF /cpus\n");
+ return -ENOENT;
+ }
+
+ for_each_child_of_node(parent, np) {
+ if (count++ != cpu_dev->id)
+ continue;
+ if (!of_get_property(np, "operating-points", NULL)) {
+ ret = -ENODATA;
+ } else {
+ cpu_dev->of_node = np;
+ ret = of_init_opp_table(cpu_dev);
+ }
+ of_node_put(np);
+ of_node_put(parent);
+
+ return ret;
+ }
+
+ return -ENODEV;
+}
+
+static int dt_get_transition_latency(struct device *cpu_dev)
+{
+ struct device_node *np, *parent;
+ u32 transition_latency = CPUFREQ_ETERNAL;
+ int count = 0;
+
+ parent = of_find_node_by_path("/cpus");
+ if (!parent) {
+ pr_err("failed to find OF /cpus\n");
+ return -ENOENT;
+ }
+
+ for_each_child_of_node(parent, np) {
+ if (count++ != cpu_dev->id)
+ continue;
+
+ of_property_read_u32(np, "clock-latency", &transition_latency);
+ of_node_put(np);
+ of_node_put(parent);
+
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+static struct cpufreq_arm_bL_ops dt_bL_ops = {
+ .name = "dt-bl",
+ .get_transition_latency = dt_get_transition_latency,
+ .init_opp_table = dt_init_opp_table,
+};
+
+static int generic_bL_init(void)
+{
+ return bL_cpufreq_register(&dt_bL_ops);
+}
+module_init(generic_bL_init);
+
+static void generic_bL_exit(void)
+{
+ return bL_cpufreq_unregister(&dt_bL_ops);
+}
+module_exit(generic_bL_exit);
+
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
+MODULE_DESCRIPTION("Generic ARM big LITTLE cpufreq driver via DT");
+MODULE_LICENSE("GPL");
diff --git a/arch/avr32/mach-at32ap/cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 18b765629a0..654488723cb 100644
--- a/arch/avr32/mach-at32ap/cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -61,7 +61,6 @@ static int at32_set_target(struct cpufreq_policy *policy,
freqs.old = at32_get_speed(0);
freqs.new = (freq + 500) / 1000;
- freqs.cpu = 0;
freqs.flags = 0;
if (!ref_freq) {
@@ -69,7 +68,7 @@ static int at32_set_target(struct cpufreq_policy *policy,
loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy;
}
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.old < freqs.new)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
@@ -77,7 +76,7 @@ static int at32_set_target(struct cpufreq_policy *policy,
if (freqs.new < freqs.old)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: set frequency %lu Hz\n", freq);
diff --git a/arch/blackfin/mach-common/cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index d88bd31319e..995511e80be 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -127,13 +127,13 @@ unsigned long cpu_set_cclk(int cpu, unsigned long new)
}
#endif
-static int bfin_target(struct cpufreq_policy *poli,
+static int bfin_target(struct cpufreq_policy *policy,
unsigned int target_freq, unsigned int relation)
{
#ifndef CONFIG_BF60x
unsigned int plldiv;
#endif
- unsigned int index, cpu;
+ unsigned int index;
unsigned long cclk_hz;
struct cpufreq_freqs freqs;
static unsigned long lpj_ref;
@@ -144,59 +144,48 @@ static int bfin_target(struct cpufreq_policy *poli,
cycles_t cycles;
#endif
- for_each_online_cpu(cpu) {
- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
+ if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq,
+ relation, &index))
+ return -EINVAL;
- if (!policy)
- continue;
+ cclk_hz = bfin_freq_table[index].frequency;
- if (cpufreq_frequency_table_target(policy, bfin_freq_table,
- target_freq, relation, &index))
- return -EINVAL;
+ freqs.old = bfin_getfreq_khz(0);
+ freqs.new = cclk_hz;
- cclk_hz = bfin_freq_table[index].frequency;
+ pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
+ cclk_hz, target_freq, freqs.old);
- freqs.old = bfin_getfreq_khz(0);
- freqs.new = cclk_hz;
- freqs.cpu = cpu;
-
- pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
- cclk_hz, target_freq, freqs.old);
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- if (cpu == CPUFREQ_CPU) {
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifndef CONFIG_BF60x
- plldiv = (bfin_read_PLL_DIV() & SSEL) |
- dpm_state_table[index].csel;
- bfin_write_PLL_DIV(plldiv);
+ plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel;
+ bfin_write_PLL_DIV(plldiv);
#else
- ret = cpu_set_cclk(cpu, freqs.new * 1000);
- if (ret != 0) {
- WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret);
- break;
- }
+ ret = cpu_set_cclk(policy->cpu, freqs.new * 1000);
+ if (ret != 0) {
+ WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret);
+ return ret;
+ }
#endif
- on_each_cpu(bfin_adjust_core_timer, &index, 1);
+ on_each_cpu(bfin_adjust_core_timer, &index, 1);
#if defined(CONFIG_CYCLES_CLOCKSOURCE)
- cycles = get_cycles();
- SSYNC();
- cycles += 10; /* ~10 cycles we lose after get_cycles() */
- __bfin_cycles_off +=
- (cycles << __bfin_cycles_mod) - (cycles << index);
- __bfin_cycles_mod = index;
+ cycles = get_cycles();
+ SSYNC();
+ cycles += 10; /* ~10 cycles we lose after get_cycles() */
+ __bfin_cycles_off += (cycles << __bfin_cycles_mod) - (cycles << index);
+ __bfin_cycles_mod = index;
#endif
- if (!lpj_ref_freq) {
- lpj_ref = loops_per_jiffy;
- lpj_ref_freq = freqs.old;
- }
- if (freqs.new != freqs.old) {
- loops_per_jiffy = cpufreq_scale(lpj_ref,
- lpj_ref_freq, freqs.new);
- }
- }
- /* TODO: just test case for cycles clock source, remove later */
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ if (!lpj_ref_freq) {
+ lpj_ref = loops_per_jiffy;
+ lpj_ref_freq = freqs.old;
}
+ if (freqs.new != freqs.old) {
+ loops_per_jiffy = cpufreq_scale(lpj_ref,
+ lpj_ref_freq, freqs.new);
+ }
+
+ /* TODO: just test case for cycles clock source, remove later */
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: done\n");
return ret;
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 37d23a0f8c5..3ab8294eab0 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -44,8 +44,9 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
{
struct cpufreq_freqs freqs;
struct opp *opp;
- unsigned long freq_Hz, volt = 0, volt_old = 0, tol = 0;
- unsigned int index, cpu;
+ unsigned long volt = 0, volt_old = 0, tol = 0;
+ long freq_Hz;
+ unsigned int index;
int ret;
ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
@@ -65,10 +66,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
- for_each_online_cpu(cpu) {
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (cpu_reg) {
rcu_read_lock();
@@ -76,7 +74,9 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
if (IS_ERR(opp)) {
rcu_read_unlock();
pr_err("failed to find OPP for %ld\n", freq_Hz);
- return PTR_ERR(opp);
+ freqs.new = freqs.old;
+ ret = PTR_ERR(opp);
+ goto post_notify;
}
volt = opp_get_voltage(opp);
rcu_read_unlock();
@@ -94,7 +94,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
if (ret) {
pr_err("failed to scale voltage up: %d\n", ret);
freqs.new = freqs.old;
- return ret;
+ goto post_notify;
}
}
@@ -103,7 +103,8 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
pr_err("failed to set clock rate: %d\n", ret);
if (cpu_reg)
regulator_set_voltage_tol(cpu_reg, volt_old, tol);
- return ret;
+ freqs.new = freqs.old;
+ goto post_notify;
}
/* scaling down? scale voltage after frequency */
@@ -113,25 +114,19 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
pr_err("failed to scale voltage down: %d\n", ret);
clk_set_rate(cpu_clk, freqs.old * 1000);
freqs.new = freqs.old;
- return ret;
}
}
- for_each_online_cpu(cpu) {
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+post_notify:
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return 0;
+ return ret;
}
static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
{
int ret;
- if (policy->cpu != 0)
- return -EINVAL;
-
ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
if (ret) {
pr_err("invalid frequency table: %d\n", ret);
@@ -262,6 +257,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
}
of_node_put(np);
+ of_node_put(parent);
return 0;
out_free_table:
diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c
index 13d311ee08b..af1542d4144 100644
--- a/drivers/cpufreq/cpufreq-nforce2.c
+++ b/drivers/cpufreq/cpufreq-nforce2.c
@@ -263,7 +263,6 @@ static int nforce2_target(struct cpufreq_policy *policy,
freqs.old = nforce2_get(policy->cpu);
freqs.new = target_fsb * fid * 100;
- freqs.cpu = 0; /* Only one CPU on nForce2 platforms */
if (freqs.old == freqs.new)
return 0;
@@ -271,7 +270,7 @@ static int nforce2_target(struct cpufreq_policy *policy,
pr_debug("Old CPU frequency %d kHz, new %d kHz\n",
freqs.old, freqs.new);
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Disable IRQs */
/* local_irq_save(flags); */
@@ -286,7 +285,7 @@ static int nforce2_target(struct cpufreq_policy *policy,
/* Enable IRQs */
/* local_irq_restore(flags); */
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
@@ -360,12 +359,10 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy)
min_fsb = NFORCE2_MIN_FSB;
/* cpuinfo and default policy values */
- policy->cpuinfo.min_freq = min_fsb * fid * 100;
- policy->cpuinfo.max_freq = max_fsb * fid * 100;
+ policy->min = policy->cpuinfo.min_freq = min_fsb * fid * 100;
+ policy->max = policy->cpuinfo.max_freq = max_fsb * fid * 100;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
policy->cur = nforce2_get(policy->cpu);
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
return 0;
}
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index b02824d092e..1b8a48eaf90 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -45,7 +45,7 @@ static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
/* This one keeps track of the previously set governor of a removed CPU */
static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
#endif
-static DEFINE_SPINLOCK(cpufreq_driver_lock);
+static DEFINE_RWLOCK(cpufreq_driver_lock);
/*
* cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
@@ -128,6 +128,11 @@ void disable_cpufreq(void)
static LIST_HEAD(cpufreq_governor_list);
static DEFINE_MUTEX(cpufreq_governor_mutex);
+bool have_governor_per_policy(void)
+{
+ return cpufreq_driver->have_governor_per_policy;
+}
+
static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
{
struct cpufreq_policy *data;
@@ -137,7 +142,7 @@ static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
goto err_out;
/* get the cpufreq driver */
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ read_lock_irqsave(&cpufreq_driver_lock, flags);
if (!cpufreq_driver)
goto err_out_unlock;
@@ -155,13 +160,13 @@ static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
if (!sysfs && !kobject_get(&data->kobj))
goto err_out_put_module;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ read_unlock_irqrestore(&cpufreq_driver_lock, flags);
return data;
err_out_put_module:
module_put(cpufreq_driver->owner);
err_out_unlock:
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ read_unlock_irqrestore(&cpufreq_driver_lock, flags);
err_out:
return NULL;
}
@@ -244,19 +249,9 @@ static inline void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
#endif
-/**
- * cpufreq_notify_transition - call notifier chain and adjust_jiffies
- * on frequency transition.
- *
- * This function calls the transition notifiers and the "adjust_jiffies"
- * function. It is called twice on all CPU frequency changes that have
- * external effects.
- */
-void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
+void __cpufreq_notify_transition(struct cpufreq_policy *policy,
+ struct cpufreq_freqs *freqs, unsigned int state)
{
- struct cpufreq_policy *policy;
- unsigned long flags;
-
BUG_ON(irqs_disabled());
if (cpufreq_disabled())
@@ -266,10 +261,6 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
pr_debug("notification %u of frequency transition to %u kHz\n",
state, freqs->new);
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
- policy = per_cpu(cpufreq_cpu_data, freqs->cpu);
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
-
switch (state) {
case CPUFREQ_PRECHANGE:
@@ -303,6 +294,20 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
break;
}
}
+/**
+ * cpufreq_notify_transition - call notifier chain and adjust_jiffies
+ * on frequency transition.
+ *
+ * This function calls the transition notifiers and the "adjust_jiffies"
+ * function. It is called twice on all CPU frequency changes that have
+ * external effects.
+ */
+void cpufreq_notify_transition(struct cpufreq_policy *policy,
+ struct cpufreq_freqs *freqs, unsigned int state)
+{
+ for_each_cpu(freqs->cpu, policy->cpus)
+ __cpufreq_notify_transition(policy, freqs, state);
+}
EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
@@ -765,12 +770,12 @@ static int cpufreq_add_dev_interface(unsigned int cpu,
goto err_out_kobj_put;
}
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
for_each_cpu(j, policy->cpus) {
per_cpu(cpufreq_cpu_data, j) = policy;
per_cpu(cpufreq_policy_cpu, j) = policy->cpu;
}
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
ret = cpufreq_add_dev_symlink(cpu, policy);
if (ret)
@@ -803,27 +808,30 @@ static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
struct device *dev)
{
struct cpufreq_policy *policy;
- int ret = 0;
+ int ret = 0, has_target = !!cpufreq_driver->target;
unsigned long flags;
policy = cpufreq_cpu_get(sibling);
WARN_ON(!policy);
- __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ if (has_target)
+ __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
lock_policy_rwsem_write(sibling);
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
cpumask_set_cpu(cpu, policy->cpus);
per_cpu(cpufreq_policy_cpu, cpu) = policy->cpu;
per_cpu(cpufreq_cpu_data, cpu) = policy;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
unlock_policy_rwsem_write(sibling);
- __cpufreq_governor(policy, CPUFREQ_GOV_START);
- __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
+ if (has_target) {
+ __cpufreq_governor(policy, CPUFREQ_GOV_START);
+ __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
+ }
ret = sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq");
if (ret) {
@@ -871,15 +879,15 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
#ifdef CONFIG_HOTPLUG_CPU
/* Check if this cpu was hot-unplugged earlier and has siblings */
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ read_lock_irqsave(&cpufreq_driver_lock, flags);
for_each_online_cpu(sibling) {
struct cpufreq_policy *cp = per_cpu(cpufreq_cpu_data, sibling);
if (cp && cpumask_test_cpu(cpu, cp->related_cpus)) {
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ read_unlock_irqrestore(&cpufreq_driver_lock, flags);
return cpufreq_add_policy_cpu(cpu, sibling, dev);
}
}
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ read_unlock_irqrestore(&cpufreq_driver_lock, flags);
#endif
#endif
@@ -952,10 +960,10 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
return 0;
err_out_unregister:
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
for_each_cpu(j, policy->cpus)
per_cpu(cpufreq_cpu_data, j) = NULL;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
kobject_put(&policy->kobj);
wait_for_completion(&policy->kobj_unregister);
@@ -1008,12 +1016,12 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
pr_debug("%s: unregistering CPU %u\n", __func__, cpu);
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
data = per_cpu(cpufreq_cpu_data, cpu);
per_cpu(cpufreq_cpu_data, cpu) = NULL;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
if (!data) {
pr_debug("%s: No cpu_data found\n", __func__);
@@ -1031,7 +1039,9 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
WARN_ON(lock_policy_rwsem_write(cpu));
cpus = cpumask_weight(data->cpus);
- cpumask_clear_cpu(cpu, data->cpus);
+
+ if (cpus > 1)
+ cpumask_clear_cpu(cpu, data->cpus);
unlock_policy_rwsem_write(cpu);
if (cpu != data->cpu) {
@@ -1047,9 +1057,9 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
WARN_ON(lock_policy_rwsem_write(cpu));
cpumask_set_cpu(cpu, data->cpus);
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
per_cpu(cpufreq_cpu_data, cpu) = data;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
unlock_policy_rwsem_write(cpu);
@@ -1070,6 +1080,9 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
/* If cpu is last user of policy, free policy */
if (cpus == 1) {
+ if (cpufreq_driver->target)
+ __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
+
lock_policy_rwsem_read(cpu);
kobj = &data->kobj;
cmp = &data->kobj_unregister;
@@ -1134,16 +1147,23 @@ static void handle_update(struct work_struct *work)
static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
unsigned int new_freq)
{
+ struct cpufreq_policy *policy;
struct cpufreq_freqs freqs;
+ unsigned long flags;
+
pr_debug("Warning: CPU frequency out of sync: cpufreq and timing "
"core thinks of %u, is %u kHz.\n", old_freq, new_freq);
- freqs.cpu = cpu;
freqs.old = old_freq;
freqs.new = new_freq;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+ read_lock_irqsave(&cpufreq_driver_lock, flags);
+ policy = per_cpu(cpufreq_cpu_data, cpu);
+ read_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
@@ -1544,10 +1564,12 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
policy->cpu, event);
ret = policy->governor->governor(policy, event);
- if (event == CPUFREQ_GOV_START)
- policy->governor->initialized++;
- else if (event == CPUFREQ_GOV_STOP)
- policy->governor->initialized--;
+ if (!ret) {
+ if (event == CPUFREQ_GOV_POLICY_INIT)
+ policy->governor->initialized++;
+ else if (event == CPUFREQ_GOV_POLICY_EXIT)
+ policy->governor->initialized--;
+ }
/* we keep one module reference alive for
each CPU governed by this CPU */
@@ -1651,7 +1673,7 @@ EXPORT_SYMBOL(cpufreq_get_policy);
static int __cpufreq_set_policy(struct cpufreq_policy *data,
struct cpufreq_policy *policy)
{
- int ret = 0;
+ int ret = 0, failed = 1;
pr_debug("setting new policy for CPU %u: %u - %u kHz\n", policy->cpu,
policy->min, policy->max);
@@ -1705,18 +1727,31 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
pr_debug("governor switch\n");
/* end old governor */
- if (data->governor)
+ if (data->governor) {
__cpufreq_governor(data, CPUFREQ_GOV_STOP);
+ __cpufreq_governor(data,
+ CPUFREQ_GOV_POLICY_EXIT);
+ }
/* start new governor */
data->governor = policy->governor;
- if (__cpufreq_governor(data, CPUFREQ_GOV_START)) {
+ if (!__cpufreq_governor(data, CPUFREQ_GOV_POLICY_INIT)) {
+ if (!__cpufreq_governor(data, CPUFREQ_GOV_START))
+ failed = 0;
+ else
+ __cpufreq_governor(data,
+ CPUFREQ_GOV_POLICY_EXIT);
+ }
+
+ if (failed) {
/* new governor failed, so re-start old one */
pr_debug("starting governor %s failed\n",
data->governor->name);
if (old_gov) {
data->governor = old_gov;
__cpufreq_governor(data,
+ CPUFREQ_GOV_POLICY_INIT);
+ __cpufreq_governor(data,
CPUFREQ_GOV_START);
}
ret = -EINVAL;
@@ -1848,13 +1883,13 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
if (driver_data->setpolicy)
driver_data->flags |= CPUFREQ_CONST_LOOPS;
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
if (cpufreq_driver) {
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
return -EBUSY;
}
cpufreq_driver = driver_data;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
ret = subsys_interface_register(&cpufreq_interface);
if (ret)
@@ -1886,9 +1921,9 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
err_if_unreg:
subsys_interface_unregister(&cpufreq_interface);
err_null_driver:
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
cpufreq_driver = NULL;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
return ret;
}
EXPORT_SYMBOL_GPL(cpufreq_register_driver);
@@ -1914,9 +1949,9 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver)
subsys_interface_unregister(&cpufreq_interface);
unregister_hotcpu_notifier(&cpufreq_cpu_notifier);
- spin_lock_irqsave(&cpufreq_driver_lock, flags);
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
cpufreq_driver = NULL;
- spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
return 0;
}
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 4fd0006b129..0ceb2eff5a7 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -20,6 +20,7 @@
#include <linux/mutex.h>
#include <linux/notifier.h>
#include <linux/percpu-defs.h>
+#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/types.h>
@@ -28,25 +29,29 @@
/* Conservative governor macros */
#define DEF_FREQUENCY_UP_THRESHOLD (80)
#define DEF_FREQUENCY_DOWN_THRESHOLD (20)
+#define DEF_FREQUENCY_STEP (5)
#define DEF_SAMPLING_DOWN_FACTOR (1)
#define MAX_SAMPLING_DOWN_FACTOR (10)
-static struct dbs_data cs_dbs_data;
static DEFINE_PER_CPU(struct cs_cpu_dbs_info_s, cs_cpu_dbs_info);
-static struct cs_dbs_tuners cs_tuners = {
- .up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
- .down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
- .sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
- .ignore_nice = 0,
- .freq_step = 5,
-};
+static inline unsigned int get_freq_target(struct cs_dbs_tuners *cs_tuners,
+ struct cpufreq_policy *policy)
+{
+ unsigned int freq_target = (cs_tuners->freq_step * policy->max) / 100;
+
+ /* max freq cannot be less than 100. But who knows... */
+ if (unlikely(freq_target == 0))
+ freq_target = DEF_FREQUENCY_STEP;
+
+ return freq_target;
+}
/*
* Every sampling_rate, we check, if current idle time is less than 20%
- * (default), then we try to increase frequency Every sampling_rate *
- * sampling_down_factor, we check, if current idle time is more than 80%, then
- * we try to decrease frequency
+ * (default), then we try to increase frequency. Every sampling_rate *
+ * sampling_down_factor, we check, if current idle time is more than 80%
+ * (default), then we try to decrease frequency
*
* Any frequency increase takes it to the maximum frequency. Frequency reduction
* happens at minimum steps of 5% (default) of maximum frequency
@@ -55,30 +60,25 @@ static void cs_check_cpu(int cpu, unsigned int load)
{
struct cs_cpu_dbs_info_s *dbs_info = &per_cpu(cs_cpu_dbs_info, cpu);
struct cpufreq_policy *policy = dbs_info->cdbs.cur_policy;
- unsigned int freq_target;
+ struct dbs_data *dbs_data = policy->governor_data;
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
/*
* break out if we 'cannot' reduce the speed as the user might
* want freq_step to be zero
*/
- if (cs_tuners.freq_step == 0)
+ if (cs_tuners->freq_step == 0)
return;
/* Check for frequency increase */
- if (load > cs_tuners.up_threshold) {
+ if (load > cs_tuners->up_threshold) {
dbs_info->down_skip = 0;
/* if we are already at full speed then break out early */
if (dbs_info->requested_freq == policy->max)
return;
- freq_target = (cs_tuners.freq_step * policy->max) / 100;
-
- /* max freq cannot be less than 100. But who knows.... */
- if (unlikely(freq_target == 0))
- freq_target = 5;
-
- dbs_info->requested_freq += freq_target;
+ dbs_info->requested_freq += get_freq_target(cs_tuners, policy);
if (dbs_info->requested_freq > policy->max)
dbs_info->requested_freq = policy->max;
@@ -87,45 +87,48 @@ static void cs_check_cpu(int cpu, unsigned int load)
return;
}
- /*
- * The optimal frequency is the frequency that is the lowest that can
- * support the current CPU usage without triggering the up policy. To be
- * safe, we focus 10 points under the threshold.
- */
- if (load < (cs_tuners.down_threshold - 10)) {
- freq_target = (cs_tuners.freq_step * policy->max) / 100;
-
- dbs_info->requested_freq -= freq_target;
- if (dbs_info->requested_freq < policy->min)
- dbs_info->requested_freq = policy->min;
+ /* if sampling_down_factor is active break out early */
+ if (++dbs_info->down_skip < cs_tuners->sampling_down_factor)
+ return;
+ dbs_info->down_skip = 0;
+ /* Check for frequency decrease */
+ if (load < cs_tuners->down_threshold) {
/*
* if we cannot reduce the frequency anymore, break out early
*/
if (policy->cur == policy->min)
return;
+ dbs_info->requested_freq -= get_freq_target(cs_tuners, policy);
+ if (dbs_info->requested_freq < policy->min)
+ dbs_info->requested_freq = policy->min;
+
__cpufreq_driver_target(policy, dbs_info->requested_freq,
- CPUFREQ_RELATION_H);
+ CPUFREQ_RELATION_L);
return;
}
}
static void cs_dbs_timer(struct work_struct *work)
{
- struct delayed_work *dw = to_delayed_work(work);
struct cs_cpu_dbs_info_s *dbs_info = container_of(work,
struct cs_cpu_dbs_info_s, cdbs.work.work);
unsigned int cpu = dbs_info->cdbs.cur_policy->cpu;
struct cs_cpu_dbs_info_s *core_dbs_info = &per_cpu(cs_cpu_dbs_info,
cpu);
- int delay = delay_for_sampling_rate(cs_tuners.sampling_rate);
+ struct dbs_data *dbs_data = dbs_info->cdbs.cur_policy->governor_data;
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
+ int delay = delay_for_sampling_rate(cs_tuners->sampling_rate);
+ bool modify_all = true;
mutex_lock(&core_dbs_info->cdbs.timer_mutex);
- if (need_load_eval(&core_dbs_info->cdbs, cs_tuners.sampling_rate))
- dbs_check_cpu(&cs_dbs_data, cpu);
+ if (!need_load_eval(&core_dbs_info->cdbs, cs_tuners->sampling_rate))
+ modify_all = false;
+ else
+ dbs_check_cpu(dbs_data, cpu);
- schedule_delayed_work_on(smp_processor_id(), dw, delay);
+ gov_queue_work(dbs_data, dbs_info->cdbs.cur_policy, delay, modify_all);
mutex_unlock(&core_dbs_info->cdbs.timer_mutex);
}
@@ -154,16 +157,12 @@ static int dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
}
/************************** sysfs interface ************************/
-static ssize_t show_sampling_rate_min(struct kobject *kobj,
- struct attribute *attr, char *buf)
-{
- return sprintf(buf, "%u\n", cs_dbs_data.min_sampling_rate);
-}
+static struct common_dbs_data cs_dbs_cdata;
-static ssize_t store_sampling_down_factor(struct kobject *a,
- struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_sampling_down_factor(struct dbs_data *dbs_data,
+ const char *buf, size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
@@ -171,13 +170,14 @@ static ssize_t store_sampling_down_factor(struct kobject *a,
if (ret != 1 || input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
return -EINVAL;
- cs_tuners.sampling_down_factor = input;
+ cs_tuners->sampling_down_factor = input;
return count;
}
-static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_sampling_rate(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
@@ -185,43 +185,46 @@ static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b,
if (ret != 1)
return -EINVAL;
- cs_tuners.sampling_rate = max(input, cs_dbs_data.min_sampling_rate);
+ cs_tuners->sampling_rate = max(input, dbs_data->min_sampling_rate);
return count;
}
-static ssize_t store_up_threshold(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_up_threshold(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
- if (ret != 1 || input > 100 || input <= cs_tuners.down_threshold)
+ if (ret != 1 || input > 100 || input <= cs_tuners->down_threshold)
return -EINVAL;
- cs_tuners.up_threshold = input;
+ cs_tuners->up_threshold = input;
return count;
}
-static ssize_t store_down_threshold(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_down_threshold(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
/* cannot be lower than 11 otherwise freq will not fall */
if (ret != 1 || input < 11 || input > 100 ||
- input >= cs_tuners.up_threshold)
+ input >= cs_tuners->up_threshold)
return -EINVAL;
- cs_tuners.down_threshold = input;
+ cs_tuners->down_threshold = input;
return count;
}
-static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_ignore_nice(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input, j;
int ret;
@@ -232,27 +235,28 @@ static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
if (input > 1)
input = 1;
- if (input == cs_tuners.ignore_nice) /* nothing to do */
+ if (input == cs_tuners->ignore_nice) /* nothing to do */
return count;
- cs_tuners.ignore_nice = input;
+ cs_tuners->ignore_nice = input;
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct cs_cpu_dbs_info_s *dbs_info;
dbs_info = &per_cpu(cs_cpu_dbs_info, j);
dbs_info->cdbs.prev_cpu_idle = get_cpu_idle_time(j,
- &dbs_info->cdbs.prev_cpu_wall);
- if (cs_tuners.ignore_nice)
+ &dbs_info->cdbs.prev_cpu_wall, 0);
+ if (cs_tuners->ignore_nice)
dbs_info->cdbs.prev_cpu_nice =
kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
return count;
}
-static ssize_t store_freq_step(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_freq_step(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
@@ -267,43 +271,88 @@ static ssize_t store_freq_step(struct kobject *a, struct attribute *b,
* no need to test here if freq_step is zero as the user might actually
* want this, they would be crazy though :)
*/
- cs_tuners.freq_step = input;
+ cs_tuners->freq_step = input;
return count;
}
-show_one(cs, sampling_rate, sampling_rate);
-show_one(cs, sampling_down_factor, sampling_down_factor);
-show_one(cs, up_threshold, up_threshold);
-show_one(cs, down_threshold, down_threshold);
-show_one(cs, ignore_nice_load, ignore_nice);
-show_one(cs, freq_step, freq_step);
-
-define_one_global_rw(sampling_rate);
-define_one_global_rw(sampling_down_factor);
-define_one_global_rw(up_threshold);
-define_one_global_rw(down_threshold);
-define_one_global_rw(ignore_nice_load);
-define_one_global_rw(freq_step);
-define_one_global_ro(sampling_rate_min);
-
-static struct attribute *dbs_attributes[] = {
- &sampling_rate_min.attr,
- &sampling_rate.attr,
- &sampling_down_factor.attr,
- &up_threshold.attr,
- &down_threshold.attr,
- &ignore_nice_load.attr,
- &freq_step.attr,
+show_store_one(cs, sampling_rate);
+show_store_one(cs, sampling_down_factor);
+show_store_one(cs, up_threshold);
+show_store_one(cs, down_threshold);
+show_store_one(cs, ignore_nice);
+show_store_one(cs, freq_step);
+declare_show_sampling_rate_min(cs);
+
+gov_sys_pol_attr_rw(sampling_rate);
+gov_sys_pol_attr_rw(sampling_down_factor);
+gov_sys_pol_attr_rw(up_threshold);
+gov_sys_pol_attr_rw(down_threshold);
+gov_sys_pol_attr_rw(ignore_nice);
+gov_sys_pol_attr_rw(freq_step);
+gov_sys_pol_attr_ro(sampling_rate_min);
+
+static struct attribute *dbs_attributes_gov_sys[] = {
+ &sampling_rate_min_gov_sys.attr,
+ &sampling_rate_gov_sys.attr,
+ &sampling_down_factor_gov_sys.attr,
+ &up_threshold_gov_sys.attr,
+ &down_threshold_gov_sys.attr,
+ &ignore_nice_gov_sys.attr,
+ &freq_step_gov_sys.attr,
NULL
};
-static struct attribute_group cs_attr_group = {
- .attrs = dbs_attributes,
+static struct attribute_group cs_attr_group_gov_sys = {
+ .attrs = dbs_attributes_gov_sys,
+ .name = "conservative",
+};
+
+static struct attribute *dbs_attributes_gov_pol[] = {
+ &sampling_rate_min_gov_pol.attr,
+ &sampling_rate_gov_pol.attr,
+ &sampling_down_factor_gov_pol.attr,
+ &up_threshold_gov_pol.attr,
+ &down_threshold_gov_pol.attr,
+ &ignore_nice_gov_pol.attr,
+ &freq_step_gov_pol.attr,
+ NULL
+};
+
+static struct attribute_group cs_attr_group_gov_pol = {
+ .attrs = dbs_attributes_gov_pol,
.name = "conservative",
};
/************************** sysfs end ************************/
+static int cs_init(struct dbs_data *dbs_data)
+{
+ struct cs_dbs_tuners *tuners;
+
+ tuners = kzalloc(sizeof(struct cs_dbs_tuners), GFP_KERNEL);
+ if (!tuners) {
+ pr_err("%s: kzalloc failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ tuners->up_threshold = DEF_FREQUENCY_UP_THRESHOLD;
+ tuners->down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD;
+ tuners->sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR;
+ tuners->ignore_nice = 0;
+ tuners->freq_step = DEF_FREQUENCY_STEP;
+
+ dbs_data->tuners = tuners;
+ dbs_data->min_sampling_rate = MIN_SAMPLING_RATE_RATIO *
+ jiffies_to_usecs(10);
+ mutex_init(&dbs_data->mutex);
+ return 0;
+}
+
+static void cs_exit(struct dbs_data *dbs_data)
+{
+ kfree(dbs_data->tuners);
+}
+
define_get_cpu_dbs_routines(cs_cpu_dbs_info);
static struct notifier_block cs_cpufreq_notifier_block = {
@@ -314,21 +363,23 @@ static struct cs_ops cs_ops = {
.notifier_block = &cs_cpufreq_notifier_block,
};
-static struct dbs_data cs_dbs_data = {
+static struct common_dbs_data cs_dbs_cdata = {
.governor = GOV_CONSERVATIVE,
- .attr_group = &cs_attr_group,
- .tuners = &cs_tuners,
+ .attr_group_gov_sys = &cs_attr_group_gov_sys,
+ .attr_group_gov_pol = &cs_attr_group_gov_pol,
.get_cpu_cdbs = get_cpu_cdbs,
.get_cpu_dbs_info_s = get_cpu_dbs_info_s,
.gov_dbs_timer = cs_dbs_timer,
.gov_check_cpu = cs_check_cpu,
.gov_ops = &cs_ops,
+ .init = cs_init,
+ .exit = cs_exit,
};
static int cs_cpufreq_governor_dbs(struct cpufreq_policy *policy,
unsigned int event)
{
- return cpufreq_governor_dbs(&cs_dbs_data, policy, event);
+ return cpufreq_governor_dbs(policy, &cs_dbs_cdata, event);
}
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
@@ -343,7 +394,6 @@ struct cpufreq_governor cpufreq_gov_conservative = {
static int __init cpufreq_gov_dbs_init(void)
{
- mutex_init(&cs_dbs_data.mutex);
return cpufreq_register_governor(&cpufreq_gov_conservative);
}
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 5a76086ff09..443442df113 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -22,12 +22,29 @@
#include <linux/export.h>
#include <linux/kernel_stat.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <linux/tick.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include "cpufreq_governor.h"
+static struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy)
+{
+ if (have_governor_per_policy())
+ return &policy->kobj;
+ else
+ return cpufreq_global_kobject;
+}
+
+static struct attribute_group *get_sysfs_attr(struct dbs_data *dbs_data)
+{
+ if (have_governor_per_policy())
+ return dbs_data->cdata->attr_group_gov_pol;
+ else
+ return dbs_data->cdata->attr_group_gov_sys;
+}
+
static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
{
u64 idle_time;
@@ -50,13 +67,13 @@ static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
return cputime_to_usecs(idle_time);
}
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall)
+u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
{
- u64 idle_time = get_cpu_idle_time_us(cpu, NULL);
+ u64 idle_time = get_cpu_idle_time_us(cpu, io_busy ? wall : NULL);
if (idle_time == -1ULL)
return get_cpu_idle_time_jiffy(cpu, wall);
- else
+ else if (!io_busy)
idle_time += get_cpu_iowait_time_us(cpu, wall);
return idle_time;
@@ -65,7 +82,7 @@ EXPORT_SYMBOL_GPL(get_cpu_idle_time);
void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
{
- struct cpu_dbs_common_info *cdbs = dbs_data->get_cpu_cdbs(cpu);
+ struct cpu_dbs_common_info *cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
struct od_dbs_tuners *od_tuners = dbs_data->tuners;
struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
struct cpufreq_policy *policy;
@@ -73,7 +90,7 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
unsigned int ignore_nice;
unsigned int j;
- if (dbs_data->governor == GOV_ONDEMAND)
+ if (dbs_data->cdata->governor == GOV_ONDEMAND)
ignore_nice = od_tuners->ignore_nice;
else
ignore_nice = cs_tuners->ignore_nice;
@@ -83,13 +100,22 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
/* Get Absolute Load (in terms of freq for ondemand gov) */
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_common_info *j_cdbs;
- u64 cur_wall_time, cur_idle_time, cur_iowait_time;
- unsigned int idle_time, wall_time, iowait_time;
+ u64 cur_wall_time, cur_idle_time;
+ unsigned int idle_time, wall_time;
unsigned int load;
+ int io_busy = 0;
- j_cdbs = dbs_data->get_cpu_cdbs(j);
+ j_cdbs = dbs_data->cdata->get_cpu_cdbs(j);
- cur_idle_time = get_cpu_idle_time(j, &cur_wall_time);
+ /*
+ * For the purpose of ondemand, waiting for disk IO is
+ * an indication that you're performance critical, and
+ * not that the system is actually idle. So do not add
+ * the iowait time to the cpu idle time.
+ */
+ if (dbs_data->cdata->governor == GOV_ONDEMAND)
+ io_busy = od_tuners->io_is_busy;
+ cur_idle_time = get_cpu_idle_time(j, &cur_wall_time, io_busy);
wall_time = (unsigned int)
(cur_wall_time - j_cdbs->prev_cpu_wall);
@@ -117,35 +143,12 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
idle_time += jiffies_to_usecs(cur_nice_jiffies);
}
- if (dbs_data->governor == GOV_ONDEMAND) {
- struct od_cpu_dbs_info_s *od_j_dbs_info =
- dbs_data->get_cpu_dbs_info_s(cpu);
-
- cur_iowait_time = get_cpu_iowait_time_us(j,
- &cur_wall_time);
- if (cur_iowait_time == -1ULL)
- cur_iowait_time = 0;
-
- iowait_time = (unsigned int) (cur_iowait_time -
- od_j_dbs_info->prev_cpu_iowait);
- od_j_dbs_info->prev_cpu_iowait = cur_iowait_time;
-
- /*
- * For the purpose of ondemand, waiting for disk IO is
- * an indication that you're performance critical, and
- * not that the system is actually idle. So subtract the
- * iowait time from the cpu idle time.
- */
- if (od_tuners->io_is_busy && idle_time >= iowait_time)
- idle_time -= iowait_time;
- }
-
if (unlikely(!wall_time || wall_time < idle_time))
continue;
load = 100 * (wall_time - idle_time) / wall_time;
- if (dbs_data->governor == GOV_ONDEMAND) {
+ if (dbs_data->cdata->governor == GOV_ONDEMAND) {
int freq_avg = __cpufreq_driver_getavg(policy, j);
if (freq_avg <= 0)
freq_avg = policy->cur;
@@ -157,24 +160,42 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
max_load = load;
}
- dbs_data->gov_check_cpu(cpu, max_load);
+ dbs_data->cdata->gov_check_cpu(cpu, max_load);
}
EXPORT_SYMBOL_GPL(dbs_check_cpu);
-static inline void dbs_timer_init(struct dbs_data *dbs_data, int cpu,
- unsigned int sampling_rate)
+static inline void __gov_queue_work(int cpu, struct dbs_data *dbs_data,
+ unsigned int delay)
{
- int delay = delay_for_sampling_rate(sampling_rate);
- struct cpu_dbs_common_info *cdbs = dbs_data->get_cpu_cdbs(cpu);
+ struct cpu_dbs_common_info *cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
- schedule_delayed_work_on(cpu, &cdbs->work, delay);
+ mod_delayed_work_on(cpu, system_wq, &cdbs->work, delay);
}
-static inline void dbs_timer_exit(struct dbs_data *dbs_data, int cpu)
+void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
+ unsigned int delay, bool all_cpus)
{
- struct cpu_dbs_common_info *cdbs = dbs_data->get_cpu_cdbs(cpu);
+ int i;
- cancel_delayed_work_sync(&cdbs->work);
+ if (!all_cpus) {
+ __gov_queue_work(smp_processor_id(), dbs_data, delay);
+ } else {
+ for_each_cpu(i, policy->cpus)
+ __gov_queue_work(i, dbs_data, delay);
+ }
+}
+EXPORT_SYMBOL_GPL(gov_queue_work);
+
+static inline void gov_cancel_work(struct dbs_data *dbs_data,
+ struct cpufreq_policy *policy)
+{
+ struct cpu_dbs_common_info *cdbs;
+ int i;
+
+ for_each_cpu(i, policy->cpus) {
+ cdbs = dbs_data->cdata->get_cpu_cdbs(i);
+ cancel_delayed_work_sync(&cdbs->work);
+ }
}
/* Will return if we need to evaluate cpu load again or not */
@@ -196,31 +217,130 @@ bool need_load_eval(struct cpu_dbs_common_info *cdbs,
}
EXPORT_SYMBOL_GPL(need_load_eval);
-int cpufreq_governor_dbs(struct dbs_data *dbs_data,
- struct cpufreq_policy *policy, unsigned int event)
+static void set_sampling_rate(struct dbs_data *dbs_data,
+ unsigned int sampling_rate)
{
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
+ cs_tuners->sampling_rate = sampling_rate;
+ } else {
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
+ od_tuners->sampling_rate = sampling_rate;
+ }
+}
+
+int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+ struct common_dbs_data *cdata, unsigned int event)
+{
+ struct dbs_data *dbs_data;
struct od_cpu_dbs_info_s *od_dbs_info = NULL;
struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
- struct cs_ops *cs_ops = NULL;
struct od_ops *od_ops = NULL;
- struct od_dbs_tuners *od_tuners = dbs_data->tuners;
- struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
+ struct od_dbs_tuners *od_tuners = NULL;
+ struct cs_dbs_tuners *cs_tuners = NULL;
struct cpu_dbs_common_info *cpu_cdbs;
- unsigned int *sampling_rate, latency, ignore_nice, j, cpu = policy->cpu;
+ unsigned int sampling_rate, latency, ignore_nice, j, cpu = policy->cpu;
+ int io_busy = 0;
int rc;
- cpu_cdbs = dbs_data->get_cpu_cdbs(cpu);
+ if (have_governor_per_policy())
+ dbs_data = policy->governor_data;
+ else
+ dbs_data = cdata->gdbs_data;
+
+ WARN_ON(!dbs_data && (event != CPUFREQ_GOV_POLICY_INIT));
+
+ switch (event) {
+ case CPUFREQ_GOV_POLICY_INIT:
+ if (have_governor_per_policy()) {
+ WARN_ON(dbs_data);
+ } else if (dbs_data) {
+ policy->governor_data = dbs_data;
+ return 0;
+ }
+
+ dbs_data = kzalloc(sizeof(*dbs_data), GFP_KERNEL);
+ if (!dbs_data) {
+ pr_err("%s: POLICY_INIT: kzalloc failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ dbs_data->cdata = cdata;
+ rc = cdata->init(dbs_data);
+ if (rc) {
+ pr_err("%s: POLICY_INIT: init() failed\n", __func__);
+ kfree(dbs_data);
+ return rc;
+ }
+
+ rc = sysfs_create_group(get_governor_parent_kobj(policy),
+ get_sysfs_attr(dbs_data));
+ if (rc) {
+ cdata->exit(dbs_data);
+ kfree(dbs_data);
+ return rc;
+ }
+
+ policy->governor_data = dbs_data;
- if (dbs_data->governor == GOV_CONSERVATIVE) {
- cs_dbs_info = dbs_data->get_cpu_dbs_info_s(cpu);
- sampling_rate = &cs_tuners->sampling_rate;
+ /* policy latency is in nS. Convert it to uS first */
+ latency = policy->cpuinfo.transition_latency / 1000;
+ if (latency == 0)
+ latency = 1;
+
+ /* Bring kernel and HW constraints together */
+ dbs_data->min_sampling_rate = max(dbs_data->min_sampling_rate,
+ MIN_LATENCY_MULTIPLIER * latency);
+ set_sampling_rate(dbs_data, max(dbs_data->min_sampling_rate,
+ latency * LATENCY_MULTIPLIER));
+
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
+
+ cpufreq_register_notifier(cs_ops->notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+ }
+
+ if (!have_governor_per_policy())
+ cdata->gdbs_data = dbs_data;
+
+ return 0;
+ case CPUFREQ_GOV_POLICY_EXIT:
+ if ((policy->governor->initialized == 1) ||
+ have_governor_per_policy()) {
+ sysfs_remove_group(get_governor_parent_kobj(policy),
+ get_sysfs_attr(dbs_data));
+
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
+
+ cpufreq_unregister_notifier(cs_ops->notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+ }
+
+ cdata->exit(dbs_data);
+ kfree(dbs_data);
+ cdata->gdbs_data = NULL;
+ }
+
+ policy->governor_data = NULL;
+ return 0;
+ }
+
+ cpu_cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
+
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ cs_tuners = dbs_data->tuners;
+ cs_dbs_info = dbs_data->cdata->get_cpu_dbs_info_s(cpu);
+ sampling_rate = cs_tuners->sampling_rate;
ignore_nice = cs_tuners->ignore_nice;
- cs_ops = dbs_data->gov_ops;
} else {
- od_dbs_info = dbs_data->get_cpu_dbs_info_s(cpu);
- sampling_rate = &od_tuners->sampling_rate;
+ od_tuners = dbs_data->tuners;
+ od_dbs_info = dbs_data->cdata->get_cpu_dbs_info_s(cpu);
+ sampling_rate = od_tuners->sampling_rate;
ignore_nice = od_tuners->ignore_nice;
- od_ops = dbs_data->gov_ops;
+ od_ops = dbs_data->cdata->gov_ops;
+ io_busy = od_tuners->io_is_busy;
}
switch (event) {
@@ -232,96 +352,53 @@ int cpufreq_governor_dbs(struct dbs_data *dbs_data,
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_common_info *j_cdbs =
- dbs_data->get_cpu_cdbs(j);
+ dbs_data->cdata->get_cpu_cdbs(j);
j_cdbs->cpu = j;
j_cdbs->cur_policy = policy;
j_cdbs->prev_cpu_idle = get_cpu_idle_time(j,
- &j_cdbs->prev_cpu_wall);
+ &j_cdbs->prev_cpu_wall, io_busy);
if (ignore_nice)
j_cdbs->prev_cpu_nice =
kcpustat_cpu(j).cpustat[CPUTIME_NICE];
mutex_init(&j_cdbs->timer_mutex);
INIT_DEFERRABLE_WORK(&j_cdbs->work,
- dbs_data->gov_dbs_timer);
- }
-
- if (!policy->governor->initialized) {
- rc = sysfs_create_group(cpufreq_global_kobject,
- dbs_data->attr_group);
- if (rc) {
- mutex_unlock(&dbs_data->mutex);
- return rc;
- }
+ dbs_data->cdata->gov_dbs_timer);
}
/*
* conservative does not implement micro like ondemand
* governor, thus we are bound to jiffes/HZ
*/
- if (dbs_data->governor == GOV_CONSERVATIVE) {
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
cs_dbs_info->down_skip = 0;
cs_dbs_info->enable = 1;
cs_dbs_info->requested_freq = policy->cur;
-
- if (!policy->governor->initialized) {
- cpufreq_register_notifier(cs_ops->notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
-
- dbs_data->min_sampling_rate =
- MIN_SAMPLING_RATE_RATIO *
- jiffies_to_usecs(10);
- }
} else {
od_dbs_info->rate_mult = 1;
od_dbs_info->sample_type = OD_NORMAL_SAMPLE;
od_ops->powersave_bias_init_cpu(cpu);
-
- if (!policy->governor->initialized)
- od_tuners->io_is_busy = od_ops->io_busy();
}
- if (policy->governor->initialized)
- goto unlock;
-
- /* policy latency is in nS. Convert it to uS first */
- latency = policy->cpuinfo.transition_latency / 1000;
- if (latency == 0)
- latency = 1;
-
- /* Bring kernel and HW constraints together */
- dbs_data->min_sampling_rate = max(dbs_data->min_sampling_rate,
- MIN_LATENCY_MULTIPLIER * latency);
- *sampling_rate = max(dbs_data->min_sampling_rate, latency *
- LATENCY_MULTIPLIER);
-unlock:
mutex_unlock(&dbs_data->mutex);
/* Initiate timer time stamp */
cpu_cdbs->time_stamp = ktime_get();
- for_each_cpu(j, policy->cpus)
- dbs_timer_init(dbs_data, j, *sampling_rate);
+ gov_queue_work(dbs_data, policy,
+ delay_for_sampling_rate(sampling_rate), true);
break;
case CPUFREQ_GOV_STOP:
- if (dbs_data->governor == GOV_CONSERVATIVE)
+ if (dbs_data->cdata->governor == GOV_CONSERVATIVE)
cs_dbs_info->enable = 0;
- for_each_cpu(j, policy->cpus)
- dbs_timer_exit(dbs_data, j);
+ gov_cancel_work(dbs_data, policy);
mutex_lock(&dbs_data->mutex);
mutex_destroy(&cpu_cdbs->timer_mutex);
- if (policy->governor->initialized == 1) {
- sysfs_remove_group(cpufreq_global_kobject,
- dbs_data->attr_group);
- if (dbs_data->governor == GOV_CONSERVATIVE)
- cpufreq_unregister_notifier(cs_ops->notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- }
mutex_unlock(&dbs_data->mutex);
break;
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index cc4bd2f6838..8ac33538d0b 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -34,20 +34,81 @@
*/
#define MIN_SAMPLING_RATE_RATIO (2)
#define LATENCY_MULTIPLIER (1000)
-#define MIN_LATENCY_MULTIPLIER (100)
+#define MIN_LATENCY_MULTIPLIER (20)
#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
/* Ondemand Sampling types */
enum {OD_NORMAL_SAMPLE, OD_SUB_SAMPLE};
-/* Macro creating sysfs show routines */
-#define show_one(_gov, file_name, object) \
-static ssize_t show_##file_name \
+/*
+ * Macro for creating governors sysfs routines
+ *
+ * - gov_sys: One governor instance per whole system
+ * - gov_pol: One governor instance per policy
+ */
+
+/* Create attributes */
+#define gov_sys_attr_ro(_name) \
+static struct global_attr _name##_gov_sys = \
+__ATTR(_name, 0444, show_##_name##_gov_sys, NULL)
+
+#define gov_sys_attr_rw(_name) \
+static struct global_attr _name##_gov_sys = \
+__ATTR(_name, 0644, show_##_name##_gov_sys, store_##_name##_gov_sys)
+
+#define gov_pol_attr_ro(_name) \
+static struct freq_attr _name##_gov_pol = \
+__ATTR(_name, 0444, show_##_name##_gov_pol, NULL)
+
+#define gov_pol_attr_rw(_name) \
+static struct freq_attr _name##_gov_pol = \
+__ATTR(_name, 0644, show_##_name##_gov_pol, store_##_name##_gov_pol)
+
+#define gov_sys_pol_attr_rw(_name) \
+ gov_sys_attr_rw(_name); \
+ gov_pol_attr_rw(_name)
+
+#define gov_sys_pol_attr_ro(_name) \
+ gov_sys_attr_ro(_name); \
+ gov_pol_attr_ro(_name)
+
+/* Create show/store routines */
+#define show_one(_gov, file_name) \
+static ssize_t show_##file_name##_gov_sys \
(struct kobject *kobj, struct attribute *attr, char *buf) \
{ \
- return sprintf(buf, "%u\n", _gov##_tuners.object); \
+ struct _gov##_dbs_tuners *tuners = _gov##_dbs_cdata.gdbs_data->tuners; \
+ return sprintf(buf, "%u\n", tuners->file_name); \
+} \
+ \
+static ssize_t show_##file_name##_gov_pol \
+(struct cpufreq_policy *policy, char *buf) \
+{ \
+ struct dbs_data *dbs_data = policy->governor_data; \
+ struct _gov##_dbs_tuners *tuners = dbs_data->tuners; \
+ return sprintf(buf, "%u\n", tuners->file_name); \
+}
+
+#define store_one(_gov, file_name) \
+static ssize_t store_##file_name##_gov_sys \
+(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) \
+{ \
+ struct dbs_data *dbs_data = _gov##_dbs_cdata.gdbs_data; \
+ return store_##file_name(dbs_data, buf, count); \
+} \
+ \
+static ssize_t store_##file_name##_gov_pol \
+(struct cpufreq_policy *policy, const char *buf, size_t count) \
+{ \
+ struct dbs_data *dbs_data = policy->governor_data; \
+ return store_##file_name(dbs_data, buf, count); \
}
+#define show_store_one(_gov, file_name) \
+show_one(_gov, file_name); \
+store_one(_gov, file_name)
+
+/* create helper routines */
#define define_get_cpu_dbs_routines(_dbs_info) \
static struct cpu_dbs_common_info *get_cpu_cdbs(int cpu) \
{ \
@@ -87,7 +148,6 @@ struct cpu_dbs_common_info {
struct od_cpu_dbs_info_s {
struct cpu_dbs_common_info cdbs;
- u64 prev_cpu_iowait;
struct cpufreq_frequency_table *freq_table;
unsigned int freq_lo;
unsigned int freq_lo_jiffies;
@@ -103,7 +163,7 @@ struct cs_cpu_dbs_info_s {
unsigned int enable:1;
};
-/* Governers sysfs tunables */
+/* Per policy Governers sysfs tunables */
struct od_dbs_tuners {
unsigned int ignore_nice;
unsigned int sampling_rate;
@@ -123,31 +183,42 @@ struct cs_dbs_tuners {
unsigned int freq_step;
};
-/* Per Governer data */
-struct dbs_data {
+/* Common Governer data across policies */
+struct dbs_data;
+struct common_dbs_data {
/* Common across governors */
#define GOV_ONDEMAND 0
#define GOV_CONSERVATIVE 1
int governor;
- unsigned int min_sampling_rate;
- struct attribute_group *attr_group;
- void *tuners;
+ struct attribute_group *attr_group_gov_sys; /* one governor - system */
+ struct attribute_group *attr_group_gov_pol; /* one governor - policy */
- /* dbs_mutex protects dbs_enable in governor start/stop */
- struct mutex mutex;
+ /* Common data for platforms that don't set have_governor_per_policy */
+ struct dbs_data *gdbs_data;
struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);
void *(*get_cpu_dbs_info_s)(int cpu);
void (*gov_dbs_timer)(struct work_struct *work);
void (*gov_check_cpu)(int cpu, unsigned int load);
+ int (*init)(struct dbs_data *dbs_data);
+ void (*exit)(struct dbs_data *dbs_data);
/* Governor specific ops, see below */
void *gov_ops;
};
+/* Governer Per policy data */
+struct dbs_data {
+ struct common_dbs_data *cdata;
+ unsigned int min_sampling_rate;
+ void *tuners;
+
+ /* dbs_mutex protects dbs_enable in governor start/stop */
+ struct mutex mutex;
+};
+
/* Governor specific ops, will be passed to dbs_data->gov_ops */
struct od_ops {
- int (*io_busy)(void);
void (*powersave_bias_init_cpu)(int cpu);
unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
unsigned int freq_next, unsigned int relation);
@@ -169,10 +240,31 @@ static inline int delay_for_sampling_rate(unsigned int sampling_rate)
return delay;
}
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall);
+#define declare_show_sampling_rate_min(_gov) \
+static ssize_t show_sampling_rate_min_gov_sys \
+(struct kobject *kobj, struct attribute *attr, char *buf) \
+{ \
+ struct dbs_data *dbs_data = _gov##_dbs_cdata.gdbs_data; \
+ return sprintf(buf, "%u\n", dbs_data->min_sampling_rate); \
+} \
+ \
+static ssize_t show_sampling_rate_min_gov_pol \
+(struct cpufreq_policy *policy, char *buf) \
+{ \
+ struct dbs_data *dbs_data = policy->governor_data; \
+ return sprintf(buf, "%u\n", dbs_data->min_sampling_rate); \
+}
+
+u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy);
void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
bool need_load_eval(struct cpu_dbs_common_info *cdbs,
unsigned int sampling_rate);
-int cpufreq_governor_dbs(struct dbs_data *dbs_data,
- struct cpufreq_policy *policy, unsigned int event);
+int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+ struct common_dbs_data *cdata, unsigned int event);
+void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
+ unsigned int delay, bool all_cpus);
+void od_register_powersave_bias_handler(unsigned int (*f)
+ (struct cpufreq_policy *, unsigned int, unsigned int),
+ unsigned int powersave_bias);
+void od_unregister_powersave_bias_handler(void);
#endif /* _CPUFREQ_GOVERNOR_H */
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index f3eb26cd848..b0ffef96bf7 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -20,9 +20,11 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/percpu-defs.h>
+#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/tick.h>
#include <linux/types.h>
+#include <linux/cpu.h>
#include "cpufreq_governor.h"
@@ -37,22 +39,14 @@
#define MIN_FREQUENCY_UP_THRESHOLD (11)
#define MAX_FREQUENCY_UP_THRESHOLD (100)
-static struct dbs_data od_dbs_data;
static DEFINE_PER_CPU(struct od_cpu_dbs_info_s, od_cpu_dbs_info);
+static struct od_ops od_ops;
+
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
static struct cpufreq_governor cpufreq_gov_ondemand;
#endif
-static struct od_dbs_tuners od_tuners = {
- .up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
- .sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
- .adj_up_threshold = DEF_FREQUENCY_UP_THRESHOLD -
- DEF_FREQUENCY_DOWN_DIFFERENTIAL,
- .ignore_nice = 0,
- .powersave_bias = 0,
-};
-
static void ondemand_powersave_bias_init_cpu(int cpu)
{
struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
@@ -89,7 +83,7 @@ static int should_io_be_busy(void)
* Returns the freq_hi to be used right now and will set freq_hi_jiffies,
* freq_lo, and freq_lo_jiffies in percpu area for averaging freqs.
*/
-static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
+static unsigned int generic_powersave_bias_target(struct cpufreq_policy *policy,
unsigned int freq_next, unsigned int relation)
{
unsigned int freq_req, freq_reduc, freq_avg;
@@ -98,6 +92,8 @@ static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
unsigned int jiffies_total, jiffies_hi, jiffies_lo;
struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
policy->cpu);
+ struct dbs_data *dbs_data = policy->governor_data;
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
if (!dbs_info->freq_table) {
dbs_info->freq_lo = 0;
@@ -108,7 +104,7 @@ static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
cpufreq_frequency_table_target(policy, dbs_info->freq_table, freq_next,
relation, &index);
freq_req = dbs_info->freq_table[index].frequency;
- freq_reduc = freq_req * od_tuners.powersave_bias / 1000;
+ freq_reduc = freq_req * od_tuners->powersave_bias / 1000;
freq_avg = freq_req - freq_reduc;
/* Find freq bounds for freq_avg in freq_table */
@@ -127,7 +123,7 @@ static unsigned int powersave_bias_target(struct cpufreq_policy *policy,
dbs_info->freq_lo_jiffies = 0;
return freq_lo;
}
- jiffies_total = usecs_to_jiffies(od_tuners.sampling_rate);
+ jiffies_total = usecs_to_jiffies(od_tuners->sampling_rate);
jiffies_hi = (freq_avg - freq_lo) * jiffies_total;
jiffies_hi += ((freq_hi - freq_lo) / 2);
jiffies_hi /= (freq_hi - freq_lo);
@@ -148,12 +144,16 @@ static void ondemand_powersave_bias_init(void)
static void dbs_freq_increase(struct cpufreq_policy *p, unsigned int freq)
{
- if (od_tuners.powersave_bias)
- freq = powersave_bias_target(p, freq, CPUFREQ_RELATION_H);
+ struct dbs_data *dbs_data = p->governor_data;
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
+
+ if (od_tuners->powersave_bias)
+ freq = od_ops.powersave_bias_target(p, freq,
+ CPUFREQ_RELATION_H);
else if (p->cur == p->max)
return;
- __cpufreq_driver_target(p, freq, od_tuners.powersave_bias ?
+ __cpufreq_driver_target(p, freq, od_tuners->powersave_bias ?
CPUFREQ_RELATION_L : CPUFREQ_RELATION_H);
}
@@ -170,15 +170,17 @@ static void od_check_cpu(int cpu, unsigned int load_freq)
{
struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
struct cpufreq_policy *policy = dbs_info->cdbs.cur_policy;
+ struct dbs_data *dbs_data = policy->governor_data;
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
dbs_info->freq_lo = 0;
/* Check for frequency increase */
- if (load_freq > od_tuners.up_threshold * policy->cur) {
+ if (load_freq > od_tuners->up_threshold * policy->cur) {
/* If switching to max speed, apply sampling_down_factor */
if (policy->cur < policy->max)
dbs_info->rate_mult =
- od_tuners.sampling_down_factor;
+ od_tuners->sampling_down_factor;
dbs_freq_increase(policy, policy->max);
return;
}
@@ -193,9 +195,10 @@ static void od_check_cpu(int cpu, unsigned int load_freq)
* support the current CPU usage without triggering the up policy. To be
* safe, we focus 10 points under the threshold.
*/
- if (load_freq < od_tuners.adj_up_threshold * policy->cur) {
+ if (load_freq < od_tuners->adj_up_threshold
+ * policy->cur) {
unsigned int freq_next;
- freq_next = load_freq / od_tuners.adj_up_threshold;
+ freq_next = load_freq / od_tuners->adj_up_threshold;
/* No longer fully busy, reset rate_mult */
dbs_info->rate_mult = 1;
@@ -203,65 +206,62 @@ static void od_check_cpu(int cpu, unsigned int load_freq)
if (freq_next < policy->min)
freq_next = policy->min;
- if (!od_tuners.powersave_bias) {
+ if (!od_tuners->powersave_bias) {
__cpufreq_driver_target(policy, freq_next,
CPUFREQ_RELATION_L);
- } else {
- int freq = powersave_bias_target(policy, freq_next,
- CPUFREQ_RELATION_L);
- __cpufreq_driver_target(policy, freq,
- CPUFREQ_RELATION_L);
+ return;
}
+
+ freq_next = od_ops.powersave_bias_target(policy, freq_next,
+ CPUFREQ_RELATION_L);
+ __cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L);
}
}
static void od_dbs_timer(struct work_struct *work)
{
- struct delayed_work *dw = to_delayed_work(work);
struct od_cpu_dbs_info_s *dbs_info =
container_of(work, struct od_cpu_dbs_info_s, cdbs.work.work);
unsigned int cpu = dbs_info->cdbs.cur_policy->cpu;
struct od_cpu_dbs_info_s *core_dbs_info = &per_cpu(od_cpu_dbs_info,
cpu);
- int delay, sample_type = core_dbs_info->sample_type;
- bool eval_load;
+ struct dbs_data *dbs_data = dbs_info->cdbs.cur_policy->governor_data;
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
+ int delay = 0, sample_type = core_dbs_info->sample_type;
+ bool modify_all = true;
mutex_lock(&core_dbs_info->cdbs.timer_mutex);
- eval_load = need_load_eval(&core_dbs_info->cdbs,
- od_tuners.sampling_rate);
+ if (!need_load_eval(&core_dbs_info->cdbs, od_tuners->sampling_rate)) {
+ modify_all = false;
+ goto max_delay;
+ }
/* Common NORMAL_SAMPLE setup */
core_dbs_info->sample_type = OD_NORMAL_SAMPLE;
if (sample_type == OD_SUB_SAMPLE) {
delay = core_dbs_info->freq_lo_jiffies;
- if (eval_load)
- __cpufreq_driver_target(core_dbs_info->cdbs.cur_policy,
- core_dbs_info->freq_lo,
- CPUFREQ_RELATION_H);
+ __cpufreq_driver_target(core_dbs_info->cdbs.cur_policy,
+ core_dbs_info->freq_lo, CPUFREQ_RELATION_H);
} else {
- if (eval_load)
- dbs_check_cpu(&od_dbs_data, cpu);
+ dbs_check_cpu(dbs_data, cpu);
if (core_dbs_info->freq_lo) {
/* Setup timer for SUB_SAMPLE */
core_dbs_info->sample_type = OD_SUB_SAMPLE;
delay = core_dbs_info->freq_hi_jiffies;
- } else {
- delay = delay_for_sampling_rate(od_tuners.sampling_rate
- * core_dbs_info->rate_mult);
}
}
- schedule_delayed_work_on(smp_processor_id(), dw, delay);
+max_delay:
+ if (!delay)
+ delay = delay_for_sampling_rate(od_tuners->sampling_rate
+ * core_dbs_info->rate_mult);
+
+ gov_queue_work(dbs_data, dbs_info->cdbs.cur_policy, delay, modify_all);
mutex_unlock(&core_dbs_info->cdbs.timer_mutex);
}
/************************** sysfs interface ************************/
-
-static ssize_t show_sampling_rate_min(struct kobject *kobj,
- struct attribute *attr, char *buf)
-{
- return sprintf(buf, "%u\n", od_dbs_data.min_sampling_rate);
-}
+static struct common_dbs_data od_dbs_cdata;
/**
* update_sampling_rate - update sampling rate effective immediately if needed.
@@ -276,12 +276,14 @@ static ssize_t show_sampling_rate_min(struct kobject *kobj,
* reducing the sampling rate, we need to make the new value effective
* immediately.
*/
-static void update_sampling_rate(unsigned int new_rate)
+static void update_sampling_rate(struct dbs_data *dbs_data,
+ unsigned int new_rate)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
int cpu;
- od_tuners.sampling_rate = new_rate = max(new_rate,
- od_dbs_data.min_sampling_rate);
+ od_tuners->sampling_rate = new_rate = max(new_rate,
+ dbs_data->min_sampling_rate);
for_each_online_cpu(cpu) {
struct cpufreq_policy *policy;
@@ -314,42 +316,54 @@ static void update_sampling_rate(unsigned int new_rate)
cancel_delayed_work_sync(&dbs_info->cdbs.work);
mutex_lock(&dbs_info->cdbs.timer_mutex);
- schedule_delayed_work_on(cpu, &dbs_info->cdbs.work,
- usecs_to_jiffies(new_rate));
+ gov_queue_work(dbs_data, dbs_info->cdbs.cur_policy,
+ usecs_to_jiffies(new_rate), true);
}
mutex_unlock(&dbs_info->cdbs.timer_mutex);
}
}
-static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_sampling_rate(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
- update_sampling_rate(input);
+
+ update_sampling_rate(dbs_data, input);
return count;
}
-static ssize_t store_io_is_busy(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_io_is_busy(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
unsigned int input;
int ret;
+ unsigned int j;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
- od_tuners.io_is_busy = !!input;
+ od_tuners->io_is_busy = !!input;
+
+ /* we need to re-evaluate prev_cpu_idle */
+ for_each_online_cpu(j) {
+ struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
+ j);
+ dbs_info->cdbs.prev_cpu_idle = get_cpu_idle_time(j,
+ &dbs_info->cdbs.prev_cpu_wall, od_tuners->io_is_busy);
+ }
return count;
}
-static ssize_t store_up_threshold(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_up_threshold(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
@@ -359,23 +373,24 @@ static ssize_t store_up_threshold(struct kobject *a, struct attribute *b,
return -EINVAL;
}
/* Calculate the new adj_up_threshold */
- od_tuners.adj_up_threshold += input;
- od_tuners.adj_up_threshold -= od_tuners.up_threshold;
+ od_tuners->adj_up_threshold += input;
+ od_tuners->adj_up_threshold -= od_tuners->up_threshold;
- od_tuners.up_threshold = input;
+ od_tuners->up_threshold = input;
return count;
}
-static ssize_t store_sampling_down_factor(struct kobject *a,
- struct attribute *b, const char *buf, size_t count)
+static ssize_t store_sampling_down_factor(struct dbs_data *dbs_data,
+ const char *buf, size_t count)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
unsigned int input, j;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1 || input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
return -EINVAL;
- od_tuners.sampling_down_factor = input;
+ od_tuners->sampling_down_factor = input;
/* Reset down sampling multiplier in case it was active */
for_each_online_cpu(j) {
@@ -386,9 +401,10 @@ static ssize_t store_sampling_down_factor(struct kobject *a,
return count;
}
-static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_ignore_nice(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
unsigned int input;
int ret;
@@ -401,18 +417,18 @@ static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
if (input > 1)
input = 1;
- if (input == od_tuners.ignore_nice) { /* nothing to do */
+ if (input == od_tuners->ignore_nice) { /* nothing to do */
return count;
}
- od_tuners.ignore_nice = input;
+ od_tuners->ignore_nice = input;
/* we need to re-evaluate prev_cpu_idle */
for_each_online_cpu(j) {
struct od_cpu_dbs_info_s *dbs_info;
dbs_info = &per_cpu(od_cpu_dbs_info, j);
dbs_info->cdbs.prev_cpu_idle = get_cpu_idle_time(j,
- &dbs_info->cdbs.prev_cpu_wall);
- if (od_tuners.ignore_nice)
+ &dbs_info->cdbs.prev_cpu_wall, od_tuners->io_is_busy);
+ if (od_tuners->ignore_nice)
dbs_info->cdbs.prev_cpu_nice =
kcpustat_cpu(j).cpustat[CPUTIME_NICE];
@@ -420,9 +436,10 @@ static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
return count;
}
-static ssize_t store_powersave_bias(struct kobject *a, struct attribute *b,
- const char *buf, size_t count)
+static ssize_t store_powersave_bias(struct dbs_data *dbs_data, const char *buf,
+ size_t count)
{
+ struct od_dbs_tuners *od_tuners = dbs_data->tuners;
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
@@ -433,68 +450,179 @@ static ssize_t store_powersave_bias(struct kobject *a, struct attribute *b,
if (input > 1000)
input = 1000;
- od_tuners.powersave_bias = input;
+ od_tuners->powersave_bias = input;
ondemand_powersave_bias_init();
return count;
}
-show_one(od, sampling_rate, sampling_rate);
-show_one(od, io_is_busy, io_is_busy);
-show_one(od, up_threshold, up_threshold);
-show_one(od, sampling_down_factor, sampling_down_factor);
-show_one(od, ignore_nice_load, ignore_nice);
-show_one(od, powersave_bias, powersave_bias);
-
-define_one_global_rw(sampling_rate);
-define_one_global_rw(io_is_busy);
-define_one_global_rw(up_threshold);
-define_one_global_rw(sampling_down_factor);
-define_one_global_rw(ignore_nice_load);
-define_one_global_rw(powersave_bias);
-define_one_global_ro(sampling_rate_min);
-
-static struct attribute *dbs_attributes[] = {
- &sampling_rate_min.attr,
- &sampling_rate.attr,
- &up_threshold.attr,
- &sampling_down_factor.attr,
- &ignore_nice_load.attr,
- &powersave_bias.attr,
- &io_is_busy.attr,
+show_store_one(od, sampling_rate);
+show_store_one(od, io_is_busy);
+show_store_one(od, up_threshold);
+show_store_one(od, sampling_down_factor);
+show_store_one(od, ignore_nice);
+show_store_one(od, powersave_bias);
+declare_show_sampling_rate_min(od);
+
+gov_sys_pol_attr_rw(sampling_rate);
+gov_sys_pol_attr_rw(io_is_busy);
+gov_sys_pol_attr_rw(up_threshold);
+gov_sys_pol_attr_rw(sampling_down_factor);
+gov_sys_pol_attr_rw(ignore_nice);
+gov_sys_pol_attr_rw(powersave_bias);
+gov_sys_pol_attr_ro(sampling_rate_min);
+
+static struct attribute *dbs_attributes_gov_sys[] = {
+ &sampling_rate_min_gov_sys.attr,
+ &sampling_rate_gov_sys.attr,
+ &up_threshold_gov_sys.attr,
+ &sampling_down_factor_gov_sys.attr,
+ &ignore_nice_gov_sys.attr,
+ &powersave_bias_gov_sys.attr,
+ &io_is_busy_gov_sys.attr,
+ NULL
+};
+
+static struct attribute_group od_attr_group_gov_sys = {
+ .attrs = dbs_attributes_gov_sys,
+ .name = "ondemand",
+};
+
+static struct attribute *dbs_attributes_gov_pol[] = {
+ &sampling_rate_min_gov_pol.attr,
+ &sampling_rate_gov_pol.attr,
+ &up_threshold_gov_pol.attr,
+ &sampling_down_factor_gov_pol.attr,
+ &ignore_nice_gov_pol.attr,
+ &powersave_bias_gov_pol.attr,
+ &io_is_busy_gov_pol.attr,
NULL
};
-static struct attribute_group od_attr_group = {
- .attrs = dbs_attributes,
+static struct attribute_group od_attr_group_gov_pol = {
+ .attrs = dbs_attributes_gov_pol,
.name = "ondemand",
};
/************************** sysfs end ************************/
+static int od_init(struct dbs_data *dbs_data)
+{
+ struct od_dbs_tuners *tuners;
+ u64 idle_time;
+ int cpu;
+
+ tuners = kzalloc(sizeof(struct od_dbs_tuners), GFP_KERNEL);
+ if (!tuners) {
+ pr_err("%s: kzalloc failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ cpu = get_cpu();
+ idle_time = get_cpu_idle_time_us(cpu, NULL);
+ put_cpu();
+ if (idle_time != -1ULL) {
+ /* Idle micro accounting is supported. Use finer thresholds */
+ tuners->up_threshold = MICRO_FREQUENCY_UP_THRESHOLD;
+ tuners->adj_up_threshold = MICRO_FREQUENCY_UP_THRESHOLD -
+ MICRO_FREQUENCY_DOWN_DIFFERENTIAL;
+ /*
+ * In nohz/micro accounting case we set the minimum frequency
+ * not depending on HZ, but fixed (very low). The deferred
+ * timer might skip some samples if idle/sleeping as needed.
+ */
+ dbs_data->min_sampling_rate = MICRO_FREQUENCY_MIN_SAMPLE_RATE;
+ } else {
+ tuners->up_threshold = DEF_FREQUENCY_UP_THRESHOLD;
+ tuners->adj_up_threshold = DEF_FREQUENCY_UP_THRESHOLD -
+ DEF_FREQUENCY_DOWN_DIFFERENTIAL;
+
+ /* For correct statistics, we need 10 ticks for each measure */
+ dbs_data->min_sampling_rate = MIN_SAMPLING_RATE_RATIO *
+ jiffies_to_usecs(10);
+ }
+
+ tuners->sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR;
+ tuners->ignore_nice = 0;
+ tuners->powersave_bias = 0;
+ tuners->io_is_busy = should_io_be_busy();
+
+ dbs_data->tuners = tuners;
+ pr_info("%s: tuners %p\n", __func__, tuners);
+ mutex_init(&dbs_data->mutex);
+ return 0;
+}
+
+static void od_exit(struct dbs_data *dbs_data)
+{
+ kfree(dbs_data->tuners);
+}
+
define_get_cpu_dbs_routines(od_cpu_dbs_info);
static struct od_ops od_ops = {
- .io_busy = should_io_be_busy,
.powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
- .powersave_bias_target = powersave_bias_target,
+ .powersave_bias_target = generic_powersave_bias_target,
.freq_increase = dbs_freq_increase,
};
-static struct dbs_data od_dbs_data = {
+static struct common_dbs_data od_dbs_cdata = {
.governor = GOV_ONDEMAND,
- .attr_group = &od_attr_group,
- .tuners = &od_tuners,
+ .attr_group_gov_sys = &od_attr_group_gov_sys,
+ .attr_group_gov_pol = &od_attr_group_gov_pol,
.get_cpu_cdbs = get_cpu_cdbs,
.get_cpu_dbs_info_s = get_cpu_dbs_info_s,
.gov_dbs_timer = od_dbs_timer,
.gov_check_cpu = od_check_cpu,
.gov_ops = &od_ops,
+ .init = od_init,
+ .exit = od_exit,
};
+static void od_set_powersave_bias(unsigned int powersave_bias)
+{
+ struct cpufreq_policy *policy;
+ struct dbs_data *dbs_data;
+ struct od_dbs_tuners *od_tuners;
+ unsigned int cpu;
+ cpumask_t done;
+
+ cpumask_clear(&done);
+
+ get_online_cpus();
+ for_each_online_cpu(cpu) {
+ if (cpumask_test_cpu(cpu, &done))
+ continue;
+
+ policy = per_cpu(od_cpu_dbs_info, cpu).cdbs.cur_policy;
+ dbs_data = policy->governor_data;
+ od_tuners = dbs_data->tuners;
+ od_tuners->powersave_bias = powersave_bias;
+
+ cpumask_or(&done, &done, policy->cpus);
+ }
+ put_online_cpus();
+}
+
+void od_register_powersave_bias_handler(unsigned int (*f)
+ (struct cpufreq_policy *, unsigned int, unsigned int),
+ unsigned int powersave_bias)
+{
+ od_ops.powersave_bias_target = f;
+ od_set_powersave_bias(powersave_bias);
+}
+EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
+
+void od_unregister_powersave_bias_handler(void)
+{
+ od_ops.powersave_bias_target = generic_powersave_bias_target;
+ od_set_powersave_bias(0);
+}
+EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
+
static int od_cpufreq_governor_dbs(struct cpufreq_policy *policy,
unsigned int event)
{
- return cpufreq_governor_dbs(&od_dbs_data, policy, event);
+ return cpufreq_governor_dbs(policy, &od_dbs_cdata, event);
}
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
@@ -509,29 +637,6 @@ struct cpufreq_governor cpufreq_gov_ondemand = {
static int __init cpufreq_gov_dbs_init(void)
{
- u64 idle_time;
- int cpu = get_cpu();
-
- mutex_init(&od_dbs_data.mutex);
- idle_time = get_cpu_idle_time_us(cpu, NULL);
- put_cpu();
- if (idle_time != -1ULL) {
- /* Idle micro accounting is supported. Use finer thresholds */
- od_tuners.up_threshold = MICRO_FREQUENCY_UP_THRESHOLD;
- od_tuners.adj_up_threshold = MICRO_FREQUENCY_UP_THRESHOLD -
- MICRO_FREQUENCY_DOWN_DIFFERENTIAL;
- /*
- * In nohz/micro accounting case we set the minimum frequency
- * not depending on HZ, but fixed (very low). The deferred
- * timer might skip some samples if idle/sleeping as needed.
- */
- od_dbs_data.min_sampling_rate = MICRO_FREQUENCY_MIN_SAMPLE_RATE;
- } else {
- /* For correct statistics, we need 10 ticks for each measure */
- od_dbs_data.min_sampling_rate = MIN_SAMPLING_RATE_RATIO *
- jiffies_to_usecs(10);
- }
-
return cpufreq_register_governor(&cpufreq_gov_ondemand);
}
diff --git a/arch/cris/arch-v32/mach-a3/cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index ee391ecb5bc..ee142c49057 100644
--- a/arch/cris/arch-v32/mach-a3/cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -27,23 +27,17 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
return clk_ctrl.pll ? 200000 : 6000;
}
-static void cris_freq_set_cpu_state(unsigned int state)
+static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
+ unsigned int state)
{
- int i = 0;
struct cpufreq_freqs freqs;
reg_clkgen_rw_clk_ctrl clk_ctrl;
clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
-#ifdef CONFIG_SMP
- for_each_present_cpu(i)
-#endif
- {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
+ freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
+ freqs.new = cris_freq_table[state].frequency;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_disable();
@@ -57,7 +51,7 @@ static void cris_freq_set_cpu_state(unsigned int state)
local_irq_enable();
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int cris_freq_verify(struct cpufreq_policy *policy)
@@ -75,7 +69,7 @@ static int cris_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
- cris_freq_set_cpu_state(newstate);
+ cris_freq_set_cpu_state(policy, newstate);
return 0;
}
diff --git a/arch/cris/arch-v32/mach-fs/cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index d92cf70d1cb..12952235d5d 100644
--- a/arch/cris/arch-v32/mach-fs/cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -27,20 +27,17 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
return clk_ctrl.pll ? 200000 : 6000;
}
-static void cris_freq_set_cpu_state(unsigned int state)
+static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
+ unsigned int state)
{
- int i;
struct cpufreq_freqs freqs;
reg_config_rw_clk_ctrl clk_ctrl;
clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
- for_each_possible_cpu(i) {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
+ freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
+ freqs.new = cris_freq_table[state].frequency;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_disable();
@@ -54,7 +51,7 @@ static void cris_freq_set_cpu_state(unsigned int state)
local_irq_enable();
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int cris_freq_verify(struct cpufreq_policy *policy)
@@ -71,7 +68,7 @@ static int cris_freq_target(struct cpufreq_policy *policy,
(policy, cris_freq_table, target_freq, relation, &newstate))
return -EINVAL;
- cris_freq_set_cpu_state(newstate);
+ cris_freq_set_cpu_state(policy, newstate);
return 0;
}
diff --git a/arch/arm/mach-davinci/cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index 4729eaab0f4..c33c76c360f 100644
--- a/arch/arm/mach-davinci/cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -30,8 +30,6 @@
#include <mach/cpufreq.h>
#include <mach/common.h>
-#include "clock.h"
-
struct davinci_cpufreq {
struct device *dev;
struct clk *armclk;
@@ -79,18 +77,8 @@ static int davinci_target(struct cpufreq_policy *policy,
struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data;
struct clk *armclk = cpufreq.armclk;
- /*
- * Ensure desired rate is within allowed range. Some govenors
- * (ondemand) will just pass target_freq=0 to get the minimum.
- */
- if (target_freq < policy->cpuinfo.min_freq)
- target_freq = policy->cpuinfo.min_freq;
- if (target_freq > policy->cpuinfo.max_freq)
- target_freq = policy->cpuinfo.max_freq;
-
freqs.old = davinci_getspeed(0);
freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000;
- freqs.cpu = 0;
if (freqs.old == freqs.new)
return ret;
@@ -102,7 +90,7 @@ static int davinci_target(struct cpufreq_policy *policy,
if (ret)
return -EINVAL;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* if moving to higher frequency, up the voltage beforehand */
if (pdata->set_voltage && freqs.new > freqs.old) {
@@ -126,7 +114,7 @@ static int davinci_target(struct cpufreq_policy *policy,
pdata->set_voltage(idx);
out:
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}
@@ -147,21 +135,16 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
return result;
}
- policy->cur = policy->min = policy->max = davinci_getspeed(0);
+ policy->cur = davinci_getspeed(0);
- if (freq_table) {
- result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (!result)
- cpufreq_frequency_table_get_attr(freq_table,
- policy->cpu);
- } else {
- policy->cpuinfo.min_freq = policy->min;
- policy->cpuinfo.max_freq = policy->max;
+ result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+ if (result) {
+ pr_err("%s: cpufreq_frequency_table_cpuinfo() failed",
+ __func__);
+ return result;
}
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
- policy->cur = davinci_getspeed(0);
+ cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
/*
* Time measurement across the target() function yields ~1500-1800us
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 72f0c3efa76..6ec6539ae04 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -37,12 +37,6 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
unsigned int idx;
int ret;
- /* scale the target frequency to one of the extremes supported */
- if (target_freq < policy->cpuinfo.min_freq)
- target_freq = policy->cpuinfo.min_freq;
- if (target_freq > policy->cpuinfo.max_freq)
- target_freq = policy->cpuinfo.max_freq;
-
/* Lookup the next frequency */
if (cpufreq_frequency_table_target(policy, freq_table, target_freq,
relation, &idx))
@@ -55,8 +49,7 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
return 0;
/* pre-change notification */
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* update armss clk frequency */
ret = clk_set_rate(armss_clk, freqs.new * 1000);
@@ -68,8 +61,7 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
}
/* post change notification */
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
@@ -79,15 +71,15 @@ static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu)
int i = 0;
unsigned long freq = clk_get_rate(armss_clk) / 1000;
- while (freq_table[i].frequency != CPUFREQ_TABLE_END) {
- if (freq <= freq_table[i].frequency)
+ /* The value is rounded to closest frequency in the defined table. */
+ while (freq_table[i + 1].frequency != CPUFREQ_TABLE_END) {
+ if (freq < freq_table[i].frequency +
+ (freq_table[i + 1].frequency - freq_table[i].frequency) / 2)
return freq_table[i].frequency;
i++;
}
- /* We could not find a corresponding frequency. */
- pr_err("dbx500-cpufreq: Failed to find cpufreq speed\n");
- return 0;
+ return freq_table[i].frequency;
}
static int __cpuinit dbx500_cpufreq_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index 3fffbe6025c..37380fb9262 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -104,7 +104,7 @@ static unsigned int eps_get(unsigned int cpu)
}
static int eps_set_state(struct eps_cpu_data *centaur,
- unsigned int cpu,
+ struct cpufreq_policy *policy,
u32 dest_state)
{
struct cpufreq_freqs freqs;
@@ -112,10 +112,9 @@ static int eps_set_state(struct eps_cpu_data *centaur,
int err = 0;
int i;
- freqs.old = eps_get(cpu);
+ freqs.old = eps_get(policy->cpu);
freqs.new = centaur->fsb * ((dest_state >> 8) & 0xff);
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Wait while CPU is busy */
rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
@@ -162,7 +161,7 @@ postchange:
current_multiplier);
}
#endif
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return err;
}
@@ -190,7 +189,7 @@ static int eps_target(struct cpufreq_policy *policy,
/* Make frequency transition */
dest_state = centaur->freq_table[newstate].index & 0xffff;
- ret = eps_set_state(centaur, cpu, dest_state);
+ ret = eps_set_state(centaur, policy, dest_state);
if (ret)
printk(KERN_ERR "eps: Timeout!\n");
return ret;
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 960671fd3d7..658d860344b 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -117,15 +117,15 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
* There is no return value.
*/
-static void elanfreq_set_cpu_state(unsigned int state)
+static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
+ unsigned int state)
{
struct cpufreq_freqs freqs;
freqs.old = elanfreq_get_cpu_frequency(0);
freqs.new = elan_multiplier[state].clock;
- freqs.cpu = 0; /* elanfreq.c is UP only driver */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",
elan_multiplier[state].clock);
@@ -161,7 +161,7 @@ static void elanfreq_set_cpu_state(unsigned int state)
udelay(10000);
local_irq_enable();
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
@@ -188,7 +188,7 @@ static int elanfreq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
- elanfreq_set_cpu_state(newstate);
+ elanfreq_set_cpu_state(policy, newstate);
return 0;
}
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 78057a357dd..475b4f607f0 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -70,7 +70,6 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
freqs.old = policy->cur;
freqs.new = target_freq;
- freqs.cpu = policy->cpu;
if (freqs.new == freqs.old)
goto out;
@@ -105,8 +104,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
}
arm_volt = volt_table[index];
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* When the new frequency is higher than current frequency */
if ((freqs.new > freqs.old) && !safe_arm_volt) {
@@ -131,8 +129,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
exynos_info->set_freq(old_index, index);
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
/* When the new frequency is lower than current frequency */
if ((freqs.new < freqs.old) ||
@@ -297,7 +294,7 @@ static int __init exynos_cpufreq_init(void)
else if (soc_is_exynos5250())
ret = exynos5250_cpufreq_init(exynos_info);
else
- pr_err("%s: CPU type not found\n", __func__);
+ return 0;
if (ret)
goto err_vdd_arm;
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
new file mode 100644
index 00000000000..0c74018eda4
--- /dev/null
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -0,0 +1,481 @@
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Amit Daniel Kachhap <amit.daniel@samsung.com>
+ *
+ * EXYNOS5440 - CPU frequency scaling support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/clk.h>
+#include <linux/cpu.h>
+#include <linux/cpufreq.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/opp.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* Register definitions */
+#define XMU_DVFS_CTRL 0x0060
+#define XMU_PMU_P0_7 0x0064
+#define XMU_C0_3_PSTATE 0x0090
+#define XMU_P_LIMIT 0x00a0
+#define XMU_P_STATUS 0x00a4
+#define XMU_PMUEVTEN 0x00d0
+#define XMU_PMUIRQEN 0x00d4
+#define XMU_PMUIRQ 0x00d8
+
+/* PMU mask and shift definations */
+#define P_VALUE_MASK 0x7
+
+#define XMU_DVFS_CTRL_EN_SHIFT 0
+
+#define P0_7_CPUCLKDEV_SHIFT 21
+#define P0_7_CPUCLKDEV_MASK 0x7
+#define P0_7_ATBCLKDEV_SHIFT 18
+#define P0_7_ATBCLKDEV_MASK 0x7
+#define P0_7_CSCLKDEV_SHIFT 15
+#define P0_7_CSCLKDEV_MASK 0x7
+#define P0_7_CPUEMA_SHIFT 28
+#define P0_7_CPUEMA_MASK 0xf
+#define P0_7_L2EMA_SHIFT 24
+#define P0_7_L2EMA_MASK 0xf
+#define P0_7_VDD_SHIFT 8
+#define P0_7_VDD_MASK 0x7f
+#define P0_7_FREQ_SHIFT 0
+#define P0_7_FREQ_MASK 0xff
+
+#define C0_3_PSTATE_VALID_SHIFT 8
+#define C0_3_PSTATE_CURR_SHIFT 4
+#define C0_3_PSTATE_NEW_SHIFT 0
+
+#define PSTATE_CHANGED_EVTEN_SHIFT 0
+
+#define PSTATE_CHANGED_IRQEN_SHIFT 0
+
+#define PSTATE_CHANGED_SHIFT 0
+
+/* some constant values for clock divider calculation */
+#define CPU_DIV_FREQ_MAX 500
+#define CPU_DBG_FREQ_MAX 375
+#define CPU_ATB_FREQ_MAX 500
+
+#define PMIC_LOW_VOLT 0x30
+#define PMIC_HIGH_VOLT 0x28
+
+#define CPUEMA_HIGH 0x2
+#define CPUEMA_MID 0x4
+#define CPUEMA_LOW 0x7
+
+#define L2EMA_HIGH 0x1
+#define L2EMA_MID 0x3
+#define L2EMA_LOW 0x4
+
+#define DIV_TAB_MAX 2
+/* frequency unit is 20MHZ */
+#define FREQ_UNIT 20
+#define MAX_VOLTAGE 1550000 /* In microvolt */
+#define VOLTAGE_STEP 12500 /* In microvolt */
+
+#define CPUFREQ_NAME "exynos5440_dvfs"
+#define DEF_TRANS_LATENCY 100000
+
+enum cpufreq_level_index {
+ L0, L1, L2, L3, L4,
+ L5, L6, L7, L8, L9,
+};
+#define CPUFREQ_LEVEL_END (L7 + 1)
+
+struct exynos_dvfs_data {
+ void __iomem *base;
+ struct resource *mem;
+ int irq;
+ struct clk *cpu_clk;
+ unsigned int cur_frequency;
+ unsigned int latency;
+ struct cpufreq_frequency_table *freq_table;
+ unsigned int freq_count;
+ struct device *dev;
+ bool dvfs_enabled;
+ struct work_struct irq_work;
+};
+
+static struct exynos_dvfs_data *dvfs_info;
+static DEFINE_MUTEX(cpufreq_lock);
+static struct cpufreq_freqs freqs;
+
+static int init_div_table(void)
+{
+ struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
+ unsigned int tmp, clk_div, ema_div, freq, volt_id;
+ int i = 0;
+ struct opp *opp;
+
+ rcu_read_lock();
+ for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) {
+
+ opp = opp_find_freq_exact(dvfs_info->dev,
+ freq_tbl[i].frequency * 1000, true);
+ if (IS_ERR(opp)) {
+ rcu_read_unlock();
+ dev_err(dvfs_info->dev,
+ "failed to find valid OPP for %u KHZ\n",
+ freq_tbl[i].frequency);
+ return PTR_ERR(opp);
+ }
+
+ freq = freq_tbl[i].frequency / 1000; /* In MHZ */
+ clk_div = ((freq / CPU_DIV_FREQ_MAX) & P0_7_CPUCLKDEV_MASK)
+ << P0_7_CPUCLKDEV_SHIFT;
+ clk_div |= ((freq / CPU_ATB_FREQ_MAX) & P0_7_ATBCLKDEV_MASK)
+ << P0_7_ATBCLKDEV_SHIFT;
+ clk_div |= ((freq / CPU_DBG_FREQ_MAX) & P0_7_CSCLKDEV_MASK)
+ << P0_7_CSCLKDEV_SHIFT;
+
+ /* Calculate EMA */
+ volt_id = opp_get_voltage(opp);
+ volt_id = (MAX_VOLTAGE - volt_id) / VOLTAGE_STEP;
+ if (volt_id < PMIC_HIGH_VOLT) {
+ ema_div = (CPUEMA_HIGH << P0_7_CPUEMA_SHIFT) |
+ (L2EMA_HIGH << P0_7_L2EMA_SHIFT);
+ } else if (volt_id > PMIC_LOW_VOLT) {
+ ema_div = (CPUEMA_LOW << P0_7_CPUEMA_SHIFT) |
+ (L2EMA_LOW << P0_7_L2EMA_SHIFT);
+ } else {
+ ema_div = (CPUEMA_MID << P0_7_CPUEMA_SHIFT) |
+ (L2EMA_MID << P0_7_L2EMA_SHIFT);
+ }
+
+ tmp = (clk_div | ema_div | (volt_id << P0_7_VDD_SHIFT)
+ | ((freq / FREQ_UNIT) << P0_7_FREQ_SHIFT));
+
+ __raw_writel(tmp, dvfs_info->base + XMU_PMU_P0_7 + 4 * i);
+ }
+
+ rcu_read_unlock();
+ return 0;
+}
+
+static void exynos_enable_dvfs(void)
+{
+ unsigned int tmp, i, cpu;
+ struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
+ /* Disable DVFS */
+ __raw_writel(0, dvfs_info->base + XMU_DVFS_CTRL);
+
+ /* Enable PSTATE Change Event */
+ tmp = __raw_readl(dvfs_info->base + XMU_PMUEVTEN);
+ tmp |= (1 << PSTATE_CHANGED_EVTEN_SHIFT);
+ __raw_writel(tmp, dvfs_info->base + XMU_PMUEVTEN);
+
+ /* Enable PSTATE Change IRQ */
+ tmp = __raw_readl(dvfs_info->base + XMU_PMUIRQEN);
+ tmp |= (1 << PSTATE_CHANGED_IRQEN_SHIFT);
+ __raw_writel(tmp, dvfs_info->base + XMU_PMUIRQEN);
+
+ /* Set initial performance index */
+ for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
+ if (freq_table[i].frequency == dvfs_info->cur_frequency)
+ break;
+
+ if (freq_table[i].frequency == CPUFREQ_TABLE_END) {
+ dev_crit(dvfs_info->dev, "Boot up frequency not supported\n");
+ /* Assign the highest frequency */
+ i = 0;
+ dvfs_info->cur_frequency = freq_table[i].frequency;
+ }
+
+ dev_info(dvfs_info->dev, "Setting dvfs initial frequency = %uKHZ",
+ dvfs_info->cur_frequency);
+
+ for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) {
+ tmp = __raw_readl(dvfs_info->base + XMU_C0_3_PSTATE + cpu * 4);
+ tmp &= ~(P_VALUE_MASK << C0_3_PSTATE_NEW_SHIFT);
+ tmp |= (i << C0_3_PSTATE_NEW_SHIFT);
+ __raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + cpu * 4);
+ }
+
+ /* Enable DVFS */
+ __raw_writel(1 << XMU_DVFS_CTRL_EN_SHIFT,
+ dvfs_info->base + XMU_DVFS_CTRL);
+}
+
+static int exynos_verify_speed(struct cpufreq_policy *policy)
+{
+ return cpufreq_frequency_table_verify(policy,
+ dvfs_info->freq_table);
+}
+
+static unsigned int exynos_getspeed(unsigned int cpu)
+{
+ return dvfs_info->cur_frequency;
+}
+
+static int exynos_target(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation)
+{
+ unsigned int index, tmp;
+ int ret = 0, i;
+ struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
+
+ mutex_lock(&cpufreq_lock);
+
+ ret = cpufreq_frequency_table_target(policy, freq_table,
+ target_freq, relation, &index);
+ if (ret)
+ goto out;
+
+ freqs.old = dvfs_info->cur_frequency;
+ freqs.new = freq_table[index].frequency;
+
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+
+ /* Set the target frequency in all C0_3_PSTATE register */
+ for_each_cpu(i, policy->cpus) {
+ tmp = __raw_readl(dvfs_info->base + XMU_C0_3_PSTATE + i * 4);
+ tmp &= ~(P_VALUE_MASK << C0_3_PSTATE_NEW_SHIFT);
+ tmp |= (index << C0_3_PSTATE_NEW_SHIFT);
+
+ __raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + i * 4);
+ }
+out:
+ mutex_unlock(&cpufreq_lock);
+ return ret;
+}
+
+static void exynos_cpufreq_work(struct work_struct *work)
+{
+ unsigned int cur_pstate, index;
+ struct cpufreq_policy *policy = cpufreq_cpu_get(0); /* boot CPU */
+ struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
+
+ /* Ensure we can access cpufreq structures */
+ if (unlikely(dvfs_info->dvfs_enabled == false))
+ goto skip_work;
+
+ mutex_lock(&cpufreq_lock);
+ freqs.old = dvfs_info->cur_frequency;
+
+ cur_pstate = __raw_readl(dvfs_info->base + XMU_P_STATUS);
+ if (cur_pstate >> C0_3_PSTATE_VALID_SHIFT & 0x1)
+ index = (cur_pstate >> C0_3_PSTATE_CURR_SHIFT) & P_VALUE_MASK;
+ else
+ index = (cur_pstate >> C0_3_PSTATE_NEW_SHIFT) & P_VALUE_MASK;
+
+ if (likely(index < dvfs_info->freq_count)) {
+ freqs.new = freq_table[index].frequency;
+ dvfs_info->cur_frequency = freqs.new;
+ } else {
+ dev_crit(dvfs_info->dev, "New frequency out of range\n");
+ freqs.new = dvfs_info->cur_frequency;
+ }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+
+ cpufreq_cpu_put(policy);
+ mutex_unlock(&cpufreq_lock);
+skip_work:
+ enable_irq(dvfs_info->irq);
+}
+
+static irqreturn_t exynos_cpufreq_irq(int irq, void *id)
+{
+ unsigned int tmp;
+
+ tmp = __raw_readl(dvfs_info->base + XMU_PMUIRQ);
+ if (tmp >> PSTATE_CHANGED_SHIFT & 0x1) {
+ __raw_writel(tmp, dvfs_info->base + XMU_PMUIRQ);
+ disable_irq_nosync(irq);
+ schedule_work(&dvfs_info->irq_work);
+ }
+ return IRQ_HANDLED;
+}
+
+static void exynos_sort_descend_freq_table(void)
+{
+ struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
+ int i = 0, index;
+ unsigned int tmp_freq;
+ /*
+ * Exynos5440 clock controller state logic expects the cpufreq table to
+ * be in descending order. But the OPP library constructs the table in
+ * ascending order. So to make the table descending we just need to
+ * swap the i element with the N - i element.
+ */
+ for (i = 0; i < dvfs_info->freq_count / 2; i++) {
+ index = dvfs_info->freq_count - i - 1;
+ tmp_freq = freq_tbl[i].frequency;
+ freq_tbl[i].frequency = freq_tbl[index].frequency;
+ freq_tbl[index].frequency = tmp_freq;
+ }
+}
+
+static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+ int ret;
+
+ ret = cpufreq_frequency_table_cpuinfo(policy, dvfs_info->freq_table);
+ if (ret) {
+ dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret);
+ return ret;
+ }
+
+ policy->cur = dvfs_info->cur_frequency;
+ policy->cpuinfo.transition_latency = dvfs_info->latency;
+ cpumask_setall(policy->cpus);
+
+ cpufreq_frequency_table_get_attr(dvfs_info->freq_table, policy->cpu);
+
+ return 0;
+}
+
+static struct cpufreq_driver exynos_driver = {
+ .flags = CPUFREQ_STICKY,
+ .verify = exynos_verify_speed,
+ .target = exynos_target,
+ .get = exynos_getspeed,
+ .init = exynos_cpufreq_cpu_init,
+ .name = CPUFREQ_NAME,
+};
+
+static const struct of_device_id exynos_cpufreq_match[] = {
+ {
+ .compatible = "samsung,exynos5440-cpufreq",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_cpufreq_match);
+
+static int exynos_cpufreq_probe(struct platform_device *pdev)
+{
+ int ret = -EINVAL;
+ struct device_node *np;
+ struct resource res;
+
+ np = pdev->dev.of_node;
+ if (!np)
+ return -ENODEV;
+
+ dvfs_info = devm_kzalloc(&pdev->dev, sizeof(*dvfs_info), GFP_KERNEL);
+ if (!dvfs_info) {
+ ret = -ENOMEM;
+ goto err_put_node;
+ }
+
+ dvfs_info->dev = &pdev->dev;
+
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret)
+ goto err_put_node;
+
+ dvfs_info->base = devm_ioremap_resource(dvfs_info->dev, &res);
+ if (IS_ERR(dvfs_info->base)) {
+ ret = PTR_ERR(dvfs_info->base);
+ goto err_put_node;
+ }
+
+ dvfs_info->irq = irq_of_parse_and_map(np, 0);
+ if (!dvfs_info->irq) {
+ dev_err(dvfs_info->dev, "No cpufreq irq found\n");
+ ret = -ENODEV;
+ goto err_put_node;
+ }
+
+ ret = of_init_opp_table(dvfs_info->dev);
+ if (ret) {
+ dev_err(dvfs_info->dev, "failed to init OPP table: %d\n", ret);
+ goto err_put_node;
+ }
+
+ ret = opp_init_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+ if (ret) {
+ dev_err(dvfs_info->dev,
+ "failed to init cpufreq table: %d\n", ret);
+ goto err_put_node;
+ }
+ dvfs_info->freq_count = opp_get_opp_count(dvfs_info->dev);
+ exynos_sort_descend_freq_table();
+
+ if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency))
+ dvfs_info->latency = DEF_TRANS_LATENCY;
+
+ dvfs_info->cpu_clk = devm_clk_get(dvfs_info->dev, "armclk");
+ if (IS_ERR(dvfs_info->cpu_clk)) {
+ dev_err(dvfs_info->dev, "Failed to get cpu clock\n");
+ ret = PTR_ERR(dvfs_info->cpu_clk);
+ goto err_free_table;
+ }
+
+ dvfs_info->cur_frequency = clk_get_rate(dvfs_info->cpu_clk);
+ if (!dvfs_info->cur_frequency) {
+ dev_err(dvfs_info->dev, "Failed to get clock rate\n");
+ ret = -EINVAL;
+ goto err_free_table;
+ }
+ dvfs_info->cur_frequency /= 1000;
+
+ INIT_WORK(&dvfs_info->irq_work, exynos_cpufreq_work);
+ ret = devm_request_irq(dvfs_info->dev, dvfs_info->irq,
+ exynos_cpufreq_irq, IRQF_TRIGGER_NONE,
+ CPUFREQ_NAME, dvfs_info);
+ if (ret) {
+ dev_err(dvfs_info->dev, "Failed to register IRQ\n");
+ goto err_free_table;
+ }
+
+ ret = init_div_table();
+ if (ret) {
+ dev_err(dvfs_info->dev, "Failed to initialise div table\n");
+ goto err_free_table;
+ }
+
+ exynos_enable_dvfs();
+ ret = cpufreq_register_driver(&exynos_driver);
+ if (ret) {
+ dev_err(dvfs_info->dev,
+ "%s: failed to register cpufreq driver\n", __func__);
+ goto err_free_table;
+ }
+
+ of_node_put(np);
+ dvfs_info->dvfs_enabled = true;
+ return 0;
+
+err_free_table:
+ opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+err_put_node:
+ of_node_put(np);
+ dev_err(dvfs_info->dev, "%s: failed initialization\n", __func__);
+ return ret;
+}
+
+static int exynos_cpufreq_remove(struct platform_device *pdev)
+{
+ cpufreq_unregister_driver(&exynos_driver);
+ opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+ return 0;
+}
+
+static struct platform_driver exynos_cpufreq_platdrv = {
+ .driver = {
+ .name = "exynos5440-cpufreq",
+ .owner = THIS_MODULE,
+ .of_match_table = exynos_cpufreq_match,
+ },
+ .probe = exynos_cpufreq_probe,
+ .remove = exynos_cpufreq_remove,
+};
+module_platform_driver(exynos_cpufreq_platdrv);
+
+MODULE_AUTHOR("Amit Daniel Kachhap <amit.daniel@samsung.com>");
+MODULE_DESCRIPTION("Exynos5440 cpufreq driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c
index 456bee058fe..3dfc99b9ca8 100644
--- a/drivers/cpufreq/gx-suspmod.c
+++ b/drivers/cpufreq/gx-suspmod.c
@@ -251,14 +251,13 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration,
* set cpu speed in khz.
**/
-static void gx_set_cpuspeed(unsigned int khz)
+static void gx_set_cpuspeed(struct cpufreq_policy *policy, unsigned int khz)
{
u8 suscfg, pmer1;
unsigned int new_khz;
unsigned long flags;
struct cpufreq_freqs freqs;
- freqs.cpu = 0;
freqs.old = gx_get_cpuspeed(0);
new_khz = gx_validate_speed(khz, &gx_params->on_duration,
@@ -266,11 +265,9 @@ static void gx_set_cpuspeed(unsigned int khz)
freqs.new = new_khz;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_save(flags);
-
-
if (new_khz != stock_freq) {
/* if new khz == 100% of CPU speed, it is special case */
switch (gx_params->cs55x0->device) {
@@ -317,7 +314,7 @@ static void gx_set_cpuspeed(unsigned int khz)
gx_params->pci_suscfg = suscfg;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("suspend modulation w/ duration of ON:%d us, OFF:%d us\n",
gx_params->on_duration * 32, gx_params->off_duration * 32);
@@ -397,7 +394,7 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy,
tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2);
}
- gx_set_cpuspeed(tmp_freq);
+ gx_set_cpuspeed(policy, tmp_freq);
return 0;
}
diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index f09b174244d..c0075dbaa63 100644
--- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -1,5 +1,4 @@
/*
- * arch/ia64/kernel/cpufreq/acpi-cpufreq.c
* This file provides the ACPI based P-state support. This
* module works with generic cpufreq infrastructure. Most of
* the code is based on i386 version
@@ -137,7 +136,7 @@ migrate_end:
static int
processor_set_freq (
struct cpufreq_acpi_io *data,
- unsigned int cpu,
+ struct cpufreq_policy *policy,
int state)
{
int ret = 0;
@@ -149,8 +148,8 @@ processor_set_freq (
pr_debug("processor_set_freq\n");
saved_mask = current->cpus_allowed;
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
- if (smp_processor_id() != cpu) {
+ set_cpus_allowed_ptr(current, cpumask_of(policy->cpu));
+ if (smp_processor_id() != policy->cpu) {
retval = -EAGAIN;
goto migrate_end;
}
@@ -170,12 +169,11 @@ processor_set_freq (
data->acpi_data.state, state);
/* cpufreq frequency struct */
- cpufreq_freqs.cpu = cpu;
cpufreq_freqs.old = data->freq_table[data->acpi_data.state].frequency;
cpufreq_freqs.new = data->freq_table[state].frequency;
/* notify cpufreq */
- cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_PRECHANGE);
/*
* First we write the target state's 'control' value to the
@@ -189,17 +187,20 @@ processor_set_freq (
ret = processor_set_pstate(value);
if (ret) {
unsigned int tmp = cpufreq_freqs.new;
- cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &cpufreq_freqs,
+ CPUFREQ_POSTCHANGE);
cpufreq_freqs.new = cpufreq_freqs.old;
cpufreq_freqs.old = tmp;
- cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE);
- cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &cpufreq_freqs,
+ CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &cpufreq_freqs,
+ CPUFREQ_POSTCHANGE);
printk(KERN_WARNING "Transition failed with error %d\n", ret);
retval = -ENODEV;
goto migrate_end;
}
- cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_POSTCHANGE);
data->acpi_data.state = state;
@@ -240,7 +241,7 @@ acpi_cpufreq_target (
if (result)
return (result);
- result = processor_set_freq(data, policy->cpu, next_state);
+ result = processor_set_freq(data, policy, next_state);
return (result);
}
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 54e336de373..b78bc35973b 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -50,7 +50,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
struct opp *opp;
unsigned long freq_hz, volt, volt_old;
- unsigned int index, cpu;
+ unsigned int index;
int ret;
ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
@@ -68,10 +68,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
- for_each_online_cpu(cpu) {
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rcu_read_lock();
opp = opp_find_freq_ceil(cpu_dev, &freq_hz);
@@ -166,10 +163,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
}
}
- for_each_online_cpu(cpu) {
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/arch/arm/mach-integrator/cpu.c b/drivers/cpufreq/integrator-cpufreq.c
index 590c192cdf4..f7c99df0880 100644
--- a/arch/arm/mach-integrator/cpu.c
+++ b/drivers/cpufreq/integrator-cpufreq.c
@@ -1,6 +1,4 @@
/*
- * linux/arch/arm/mach-integrator/cpu.c
- *
* Copyright (C) 2001-2002 Deep Blue Solutions Ltd.
*
* This program is free software; you can redistribute it and/or modify
@@ -123,14 +121,12 @@ static int integrator_set_target(struct cpufreq_policy *policy,
vco = icst_hz_to_vco(&cclk_params, target_freq * 1000);
freqs.new = icst_hz(&cclk_params, vco) / 1000;
- freqs.cpu = policy->cpu;
-
if (freqs.old == freqs.new) {
set_cpus_allowed(current, cpus_allowed);
return 0;
}
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
cm_osc = __raw_readl(CM_OSC);
@@ -151,7 +147,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
*/
set_cpus_allowed(current, cpus_allowed);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 6133ef5cf67..cc3a8e6c92b 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1,5 +1,5 @@
/*
- * cpufreq_snb.c: Native P state management for Intel processors
+ * intel_pstate.c: Native P state management for Intel processors
*
* (C) Copyright 2012 Intel Corporation
* Author: Dirk Brandewie <dirk.j.brandewie@intel.com>
@@ -657,30 +657,27 @@ static unsigned int intel_pstate_get(unsigned int cpu_num)
static int intel_pstate_set_policy(struct cpufreq_policy *policy)
{
struct cpudata *cpu;
- int min, max;
cpu = all_cpu_data[policy->cpu];
if (!policy->cpuinfo.max_freq)
return -ENODEV;
- intel_pstate_get_min_max(cpu, &min, &max);
-
- limits.min_perf_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
- limits.min_perf_pct = clamp_t(int, limits.min_perf_pct, 0 , 100);
- limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
-
- limits.max_perf_pct = policy->max * 100 / policy->cpuinfo.max_freq;
- limits.max_perf_pct = clamp_t(int, limits.max_perf_pct, 0 , 100);
- limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
-
if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
limits.min_perf_pct = 100;
limits.min_perf = int_tofp(1);
limits.max_perf_pct = 100;
limits.max_perf = int_tofp(1);
limits.no_turbo = 0;
+ return 0;
}
+ limits.min_perf_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
+ limits.min_perf_pct = clamp_t(int, limits.min_perf_pct, 0 , 100);
+ limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
+
+ limits.max_perf_pct = policy->max * 100 / policy->cpuinfo.max_freq;
+ limits.max_perf_pct = clamp_t(int, limits.max_perf_pct, 0 , 100);
+ limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
return 0;
}
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 0e83e3c24f5..d36ea8dc96e 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -55,7 +55,8 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
return kirkwood_freq_table[0].frequency;
}
-static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
+static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
+ unsigned int index)
{
struct cpufreq_freqs freqs;
unsigned int state = kirkwood_freq_table[index].index;
@@ -63,9 +64,8 @@ static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
freqs.old = kirkwood_cpufreq_get_cpu_frequency(0);
freqs.new = kirkwood_freq_table[index].frequency;
- freqs.cpu = 0; /* Kirkwood is UP */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
dev_dbg(priv.dev, "Attempting to set frequency to %i KHz\n",
kirkwood_freq_table[index].frequency);
@@ -99,7 +99,7 @@ static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
local_irq_enable();
}
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int kirkwood_cpufreq_verify(struct cpufreq_policy *policy)
@@ -117,7 +117,7 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
target_freq, relation, &index))
return -EINVAL;
- kirkwood_cpufreq_set_cpu_state(index);
+ kirkwood_cpufreq_set_cpu_state(policy, index);
return 0;
}
@@ -175,11 +175,9 @@ static int kirkwood_cpufreq_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Cannot get memory resource\n");
return -ENODEV;
}
- priv.base = devm_request_and_ioremap(&pdev->dev, res);
- if (!priv.base) {
- dev_err(&pdev->dev, "Cannot ioremap\n");
- return -EADDRNOTAVAIL;
- }
+ priv.base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv.base))
+ return PTR_ERR(priv.base);
np = of_find_node_by_path("/cpus/cpu@0");
if (!np)
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 1180d536d1e..b448638e34d 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -242,7 +242,8 @@ static void do_powersaver(int cx_address, unsigned int mults_index,
* Sets a new clock ratio.
*/
-static void longhaul_setstate(unsigned int table_index)
+static void longhaul_setstate(struct cpufreq_policy *policy,
+ unsigned int table_index)
{
unsigned int mults_index;
int speed, mult;
@@ -267,9 +268,8 @@ static void longhaul_setstate(unsigned int table_index)
freqs.old = calc_speed(longhaul_get_cpu_mult());
freqs.new = speed;
- freqs.cpu = 0; /* longhaul.c is UP only driver */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n",
fsb, mult/10, mult%10, print_speed(speed/1000));
@@ -386,7 +386,7 @@ retry_loop:
}
}
/* Report true CPU frequency */
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
if (!bm_timeout)
printk(KERN_INFO PFX "Warning: Timeout while waiting for "
@@ -648,7 +648,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
return 0;
if (!can_scale_voltage)
- longhaul_setstate(table_index);
+ longhaul_setstate(policy, table_index);
else {
/* On test system voltage transitions exceeding single
* step up or down were turning motherboard off. Both
@@ -663,7 +663,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
while (i != table_index) {
vid = (longhaul_table[i].index >> 8) & 0x1f;
if (vid != current_vid) {
- longhaul_setstate(i);
+ longhaul_setstate(policy, i);
current_vid = vid;
msleep(200);
}
@@ -672,7 +672,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
else
i--;
}
- longhaul_setstate(table_index);
+ longhaul_setstate(policy, table_index);
}
longhaul_index = table_index;
return 0;
@@ -998,15 +998,17 @@ static int __init longhaul_init(void)
static void __exit longhaul_exit(void)
{
+ struct cpufreq_policy *policy = cpufreq_cpu_get(0);
int i;
for (i = 0; i < numscales; i++) {
if (mults[i] == maxmult) {
- longhaul_setstate(i);
+ longhaul_setstate(policy, i);
break;
}
}
+ cpufreq_cpu_put(policy);
cpufreq_unregister_driver(&longhaul_driver);
kfree(longhaul_table);
}
diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 3237c5235f9..84889573b56 100644
--- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -61,9 +61,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
unsigned int freq;
- if (!cpu_online(cpu))
- return -ENODEV;
-
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -80,7 +77,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
- freqs.cpu = cpu;
freqs.old = loongson2_cpufreq_get(cpu);
freqs.new = freq;
freqs.flags = 0;
@@ -89,7 +85,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
@@ -97,7 +93,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
clk_set_rate(cpuclk, freq);
/* notifiers */
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: set frequency %u kHz\n", freq);
@@ -110,9 +106,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
unsigned long rate;
int ret;
- if (!cpu_online(policy->cpu))
- return -ENODEV;
-
cpuclk = clk_get(NULL, "cpu_clk");
if (IS_ERR(cpuclk)) {
printk(KERN_ERR "cpufreq: couldn't get CPU clk\n");
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index d4c4989823d..cdd62915efa 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -158,11 +158,10 @@ static int maple_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
freqs.new = maple_cpu_freqs[newstate].frequency;
- freqs.cpu = 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rc = maple_scom_switch_freq(newstate);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&maple_switch_mutex);
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 9128c07bafb..0279d18a57f 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -25,6 +25,7 @@
#include <linux/opp.h>
#include <linux/cpu.h>
#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <asm/smp_plat.h>
@@ -88,16 +89,12 @@ static int omap_target(struct cpufreq_policy *policy,
}
freqs.old = omap_getspeed(policy->cpu);
- freqs.cpu = policy->cpu;
if (freqs.old == freqs.new && policy->cur == freqs.new)
return ret;
/* notifiers */
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
freq = freqs.new * 1000;
ret = clk_round_rate(mpu_clk, freq);
@@ -157,10 +154,7 @@ static int omap_target(struct cpufreq_policy *policy,
done:
/* notifiers */
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}
@@ -184,7 +178,7 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
goto fail_ck;
}
- policy->cur = policy->min = policy->max = omap_getspeed(policy->cpu);
+ policy->cur = omap_getspeed(policy->cpu);
if (!freq_table)
result = opp_init_cpufreq_table(mpu_dev, &freq_table);
@@ -203,8 +197,6 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
policy->cur = omap_getspeed(policy->cpu);
/*
@@ -252,7 +244,7 @@ static struct cpufreq_driver omap_driver = {
.attr = omap_cpufreq_attr,
};
-static int __init omap_cpufreq_init(void)
+static int omap_cpufreq_probe(struct platform_device *pdev)
{
mpu_dev = get_cpu_device(0);
if (!mpu_dev) {
@@ -280,12 +272,20 @@ static int __init omap_cpufreq_init(void)
return cpufreq_register_driver(&omap_driver);
}
-static void __exit omap_cpufreq_exit(void)
+static int omap_cpufreq_remove(struct platform_device *pdev)
{
- cpufreq_unregister_driver(&omap_driver);
+ return cpufreq_unregister_driver(&omap_driver);
}
+static struct platform_driver omap_cpufreq_platdrv = {
+ .driver = {
+ .name = "omap-cpufreq",
+ .owner = THIS_MODULE,
+ },
+ .probe = omap_cpufreq_probe,
+ .remove = omap_cpufreq_remove,
+};
+module_platform_driver(omap_cpufreq_platdrv);
+
MODULE_DESCRIPTION("cpufreq driver for OMAP SoCs");
MODULE_LICENSE("GPL");
-module_init(omap_cpufreq_init);
-module_exit(omap_cpufreq_exit);
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 827629c9aad..421ef37d0bb 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -58,8 +58,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate)
{
u32 l, h;
- if (!cpu_online(cpu) ||
- (newstate > DC_DISABLE) || (newstate == DC_RESV))
+ if ((newstate > DC_DISABLE) || (newstate == DC_RESV))
return -EINVAL;
rdmsr_on_cpu(cpu, MSR_IA32_THERM_STATUS, &l, &h);
@@ -125,10 +124,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* run on each logical CPU,
* see section 13.15.3 of IA32 Intel Architecture Software
@@ -138,10 +134,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
cpufreq_p4_setdc(i, p4clockmod_table[newstate].index);
/* notifiers */
- for_each_cpu(i, policy->cpus) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 503996a94a6..0de00081a81 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -215,8 +215,7 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy,
(pcch_virt_addr + pcc_cpu_data->input_offset));
freqs.new = target_freq;
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
input_buffer = 0x1 | (((target_freq * 100)
/ (ioread32(&pcch_hdr->nominal) * 1000)) << 8);
@@ -237,7 +236,7 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy,
}
iowrite16(0, &pcch_hdr->status);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("target: was SUCCESSFUL for cpu %d\n", cpu);
spin_unlock(&pcc_lock);
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index af23e0b9ec9..ea0222a45b7 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -68,7 +68,8 @@ static int powernow_k6_get_cpu_multiplier(void)
*
* Tries to change the PowerNow! multiplier
*/
-static void powernow_k6_set_state(unsigned int best_i)
+static void powernow_k6_set_state(struct cpufreq_policy *policy,
+ unsigned int best_i)
{
unsigned long outvalue = 0, invalue = 0;
unsigned long msrval;
@@ -81,9 +82,8 @@ static void powernow_k6_set_state(unsigned int best_i)
freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
freqs.new = busfreq * clock_ratio[best_i].index;
- freqs.cpu = 0; /* powernow-k6.c is UP only driver */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* we now need to transform best_i to the BVC format, see AMD#23446 */
@@ -98,7 +98,7 @@ static void powernow_k6_set_state(unsigned int best_i)
msrval = POWERNOW_IOPORT + 0x0;
wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return;
}
@@ -136,7 +136,7 @@ static int powernow_k6_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
- powernow_k6_set_state(newstate);
+ powernow_k6_set_state(policy, newstate);
return 0;
}
@@ -182,7 +182,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
unsigned int i;
for (i = 0; i < 8; i++) {
if (i == max_multiplier)
- powernow_k6_set_state(i);
+ powernow_k6_set_state(policy, i);
}
cpufreq_frequency_table_put_attr(policy->cpu);
return 0;
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 334cc2f1e9f..53888dacbe5 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -248,7 +248,7 @@ static void change_VID(int vid)
}
-static void change_speed(unsigned int index)
+static void change_speed(struct cpufreq_policy *policy, unsigned int index)
{
u8 fid, vid;
struct cpufreq_freqs freqs;
@@ -263,15 +263,13 @@ static void change_speed(unsigned int index)
fid = powernow_table[index].index & 0xFF;
vid = (powernow_table[index].index & 0xFF00) >> 8;
- freqs.cpu = 0;
-
rdmsrl(MSR_K7_FID_VID_STATUS, fidvidstatus.val);
cfid = fidvidstatus.bits.CFID;
freqs.old = fsb * fid_codes[cfid] / 10;
freqs.new = powernow_table[index].frequency;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Now do the magic poking into the MSRs. */
@@ -292,7 +290,7 @@ static void change_speed(unsigned int index)
if (have_a0 == 1)
local_irq_enable();
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
@@ -546,7 +544,7 @@ static int powernow_target(struct cpufreq_policy *policy,
relation, &newstate))
return -EINVAL;
- change_speed(newstate);
+ change_speed(policy, newstate);
return 0;
}
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index d13a13678b5..b828efe4b2f 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -928,9 +928,10 @@ static int get_transition_latency(struct powernow_k8_data *data)
static int transition_frequency_fidvid(struct powernow_k8_data *data,
unsigned int index)
{
+ struct cpufreq_policy *policy;
u32 fid = 0;
u32 vid = 0;
- int res, i;
+ int res;
struct cpufreq_freqs freqs;
pr_debug("cpu %d transition to index %u\n", smp_processor_id(), index);
@@ -959,10 +960,10 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
freqs.old = find_khz_freq_from_fid(data->currfid);
freqs.new = find_khz_freq_from_fid(fid);
- for_each_cpu(i, data->available_cores) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
- }
+ policy = cpufreq_cpu_get(smp_processor_id());
+ cpufreq_cpu_put(policy);
+
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
res = transition_fid_vid(data, fid, vid);
if (res)
@@ -970,10 +971,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
freqs.new = find_khz_freq_from_fid(data->currfid);
- for_each_cpu(i, data->available_cores) {
- freqs.cpu = i;
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
- }
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return res;
}
@@ -1104,9 +1102,6 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
struct init_on_cpu init_on_cpu;
int rc;
- if (!cpu_online(pol->cpu))
- return -ENODEV;
-
smp_call_function_single(pol->cpu, check_supported_cpu, &rc, 1);
if (rc)
return -ENODEV;
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index d4c39e32f14..e577a1dbbfc 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -27,7 +27,8 @@
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/cell-regs.h>
-#include "cbe_cpufreq.h"
+
+#include "ppc_cbe_cpufreq.h"
static DEFINE_MUTEX(cbe_switch_mutex);
@@ -156,10 +157,9 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = cbe_freqs[cbe_pmode_new].frequency;
- freqs.cpu = policy->cpu;
mutex_lock(&cbe_switch_mutex);
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("setting frequency for cpu %d to %d kHz, " \
"1/%d of max frequency\n",
@@ -169,7 +169,7 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
rc = set_pmode(policy->cpu, cbe_pmode_new);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&cbe_switch_mutex);
return rc;
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.h b/drivers/cpufreq/ppc_cbe_cpufreq.h
index c1d86bfa92f..b4c00a5a6a5 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq.h
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.h
@@ -1,5 +1,5 @@
/*
- * cbe_cpufreq.h
+ * ppc_cbe_cpufreq.h
*
* This file contains the definitions used by the cbe_cpufreq driver.
*
@@ -17,7 +17,7 @@ int cbe_cpufreq_get_pmode(int cpu);
int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode);
-#if defined(CONFIG_CBE_CPUFREQ_PMI) || defined(CONFIG_CBE_CPUFREQ_PMI_MODULE)
+#if defined(CONFIG_CPU_FREQ_CBE_PMI) || defined(CONFIG_CPU_FREQ_CBE_PMI_MODULE)
extern bool cbe_cpufreq_has_pmi;
#else
#define cbe_cpufreq_has_pmi (0)
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c b/drivers/cpufreq/ppc_cbe_cpufreq_pervasive.c
index 20472e487b6..84d2f2cf5ba 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq_pervasive.c
@@ -30,7 +30,7 @@
#include <asm/hw_irq.h>
#include <asm/cell-regs.h>
-#include "cbe_cpufreq.h"
+#include "ppc_cbe_cpufreq.h"
/* to write to MIC register */
static u64 MIC_Slow_Fast_Timer_table[] = {
diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c b/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c
index 60a07a4f932..d29e8da396a 100644
--- a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c
@@ -35,7 +35,7 @@
#include <asm/time.h>
#endif
-#include "cbe_cpufreq.h"
+#include "ppc_cbe_cpufreq.h"
static u8 pmi_slow_mode_limit[MAX_CBE];
diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 6a7aeab42f6..9e5bc8e388a 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -1,6 +1,4 @@
/*
- * linux/arch/arm/mach-pxa/cpufreq-pxa2xx.c
- *
* Copyright (C) 2002,2003 Intrinsyc Software
*
* This program is free software; you can redistribute it and/or modify
@@ -223,10 +221,11 @@ static void find_freq_tables(struct cpufreq_frequency_table **freq_table,
*pxa_freqs = pxa255_turbo_freqs;
*freq_table = pxa255_turbo_freq_table;
}
- }
- if (cpu_is_pxa27x()) {
+ } else if (cpu_is_pxa27x()) {
*pxa_freqs = pxa27x_freqs;
*freq_table = pxa27x_freq_table;
+ } else {
+ BUG();
}
}
@@ -311,7 +310,6 @@ static int pxa_set_target(struct cpufreq_policy *policy,
new_freq_mem = pxa_freq_settings[idx].membus;
freqs.old = policy->cur;
freqs.new = new_freq_cpu;
- freqs.cpu = policy->cpu;
if (freq_debug)
pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
@@ -327,7 +325,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
* you should add a notify client with any platform specific
* Vcc changing capability
*/
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Calculate the next MDREFR. If we're slowing down the SDRAM clock
* we need to preset the smaller DRI before the change. If we're
@@ -382,7 +380,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
* you should add a notify client with any platform specific
* SDRAM refresh timer adjustments
*/
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
/*
* Even if voltage setting fails, we don't report it, as the frequency
diff --git a/arch/arm/mach-pxa/cpufreq-pxa3xx.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index b85b4ab7aac..15d60f857ad 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa3xx.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -1,6 +1,4 @@
/*
- * linux/arch/arm/mach-pxa/cpufreq-pxa3xx.c
- *
* Copyright (C) 2008 Marvell International Ltd.
*
* This program is free software; you can redistribute it and/or modify
@@ -17,10 +15,9 @@
#include <linux/slab.h>
#include <linux/io.h>
+#include <mach/generic.h>
#include <mach/pxa3xx-regs.h>
-#include "generic.h"
-
#define HSS_104M (0)
#define HSS_156M (1)
#define HSS_208M (2)
@@ -184,7 +181,6 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = next->cpufreq_mhz * 1000;
- freqs.cpu = policy->cpu;
pr_debug("CPU frequency from %d MHz to %d MHz%s\n",
freqs.old / 1000, freqs.new / 1000,
@@ -193,14 +189,14 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
if (freqs.old == target_freq)
return 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_save(flags);
__update_core_freq(next);
__update_bus_freq(next);
local_irq_restore(flags);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index bcc053bc02c..4f1881eee3f 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -256,7 +256,6 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
goto out;
}
- freqs.cpu = 0;
freqs.flags = 0;
freqs.old = s3c_freq->is_dvs ? FREQ_DVS
: clk_get_rate(s3c_freq->armclk) / 1000;
@@ -274,7 +273,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
if (!to_dvs && freqs.old == freqs.new)
goto out;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (to_dvs) {
pr_debug("cpufreq: enter dvs\n");
@@ -287,7 +286,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
ret = s3c2416_cpufreq_set_armdiv(s3c_freq, freqs.new);
}
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
out:
mutex_unlock(&cpufreq_lock);
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 6f9490b3c35..27cacb52479 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -84,7 +84,6 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
if (ret != 0)
return ret;
- freqs.cpu = 0;
freqs.old = clk_get_rate(armclk) / 1000;
freqs.new = s3c64xx_freq_table[i].frequency;
freqs.flags = 0;
@@ -95,7 +94,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new > freqs.old) {
@@ -117,7 +116,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
goto err;
}
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new < freqs.old) {
@@ -141,7 +140,7 @@ err_clk:
if (clk_set_rate(armclk, freqs.old * 1000) < 0)
pr_err("Failed to restore original clock rate\n");
err:
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index a484aaea980..5c775707379 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -229,7 +229,6 @@ static int s5pv210_target(struct cpufreq_policy *policy,
}
freqs.new = s5pv210_freq_table[index].frequency;
- freqs.cpu = 0;
if (freqs.new == freqs.old)
goto exit;
@@ -256,7 +255,7 @@ static int s5pv210_target(struct cpufreq_policy *policy,
goto exit;
}
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Check if there need to change PLL */
if ((index == L0) || (priv_index == L0))
@@ -468,7 +467,7 @@ static int s5pv210_target(struct cpufreq_policy *policy,
}
}
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
if (freqs.new < freqs.old) {
regulator_set_voltage(int_regulator,
diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/drivers/cpufreq/sa1100-cpufreq.c
index e8f4d1e1923..cff18e87ca5 100644
--- a/arch/arm/mach-sa1100/cpu-sa1100.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -91,10 +91,9 @@
#include <asm/cputype.h>
+#include <mach/generic.h>
#include <mach/hardware.h>
-#include "generic.h"
-
struct sa1100_dram_regs {
int speed;
u32 mdcnfg;
@@ -201,9 +200,8 @@ static int sa1100_target(struct cpufreq_policy *policy,
freqs.old = cur;
freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
- freqs.cpu = 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.new > cur)
sa1100_update_dram_timings(cur, freqs.new);
@@ -213,7 +211,7 @@ static int sa1100_target(struct cpufreq_policy *policy,
if (freqs.new < cur)
sa1100_update_dram_timings(cur, freqs.new);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/arch/arm/mach-sa1100/cpu-sa1110.c b/drivers/cpufreq/sa1110-cpufreq.c
index 48c45b0c92b..39c90b6f428 100644
--- a/arch/arm/mach-sa1100/cpu-sa1110.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -27,10 +27,9 @@
#include <asm/cputype.h>
#include <asm/mach-types.h>
+#include <mach/generic.h>
#include <mach/hardware.h>
-#include "generic.h"
-
#undef DEBUG
struct sdram_params {
@@ -258,7 +257,6 @@ static int sa1110_target(struct cpufreq_policy *policy,
freqs.old = sa11x0_getspeed(0);
freqs.new = sa11x0_ppcr_to_freq(ppcr);
- freqs.cpu = 0;
sdram_calculate_timing(&sd, freqs.new, sdram);
@@ -279,7 +277,7 @@ static int sa1110_target(struct cpufreq_policy *policy,
sd.mdcas[2] = 0xaaaaaaaa;
#endif
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/*
* The clock could be going away for some time. Set the SDRAMs
@@ -327,7 +325,7 @@ static int sa1110_target(struct cpufreq_policy *policy,
*/
sdram_update_refresh(freqs.new, sdram);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index e42e073cd9b..f740b134d27 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -53,7 +53,8 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
}
}
-static void sc520_freq_set_cpu_state(unsigned int state)
+static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
+ unsigned int state)
{
struct cpufreq_freqs freqs;
@@ -61,9 +62,8 @@ static void sc520_freq_set_cpu_state(unsigned int state)
freqs.old = sc520_freq_get_cpu_frequency(0);
freqs.new = sc520_freq_table[state].frequency;
- freqs.cpu = 0; /* AMD Elan is UP */
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("attempting to set frequency to %i kHz\n",
sc520_freq_table[state].frequency);
@@ -75,7 +75,7 @@ static void sc520_freq_set_cpu_state(unsigned int state)
local_irq_enable();
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int sc520_freq_verify(struct cpufreq_policy *policy)
@@ -93,7 +93,7 @@ static int sc520_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
- sc520_freq_set_cpu_state(newstate);
+ sc520_freq_set_cpu_state(policy, newstate);
return 0;
}
diff --git a/arch/sh/kernel/cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index e68b45b6f3f..73adb64651e 100644
--- a/arch/sh/kernel/cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -1,6 +1,4 @@
/*
- * arch/sh/kernel/cpufreq.c
- *
* cpufreq driver for the SuperH processors.
*
* Copyright (C) 2002 - 2012 Paul Mundt
@@ -51,9 +49,6 @@ static int sh_cpufreq_target(struct cpufreq_policy *policy,
struct device *dev;
long freq;
- if (!cpu_online(cpu))
- return -ENODEV;
-
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -69,15 +64,14 @@ static int sh_cpufreq_target(struct cpufreq_policy *policy,
dev_dbg(dev, "requested frequency %u Hz\n", target_freq * 1000);
- freqs.cpu = cpu;
freqs.old = sh_cpufreq_get(cpu);
freqs.new = (freq + 500) / 1000;
freqs.flags = 0;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
clk_set_rate(cpuclk, freq);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
dev_dbg(dev, "set frequency %lu Hz\n", freq);
@@ -112,9 +106,6 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
struct cpufreq_frequency_table *freq_table;
struct device *dev;
- if (!cpu_online(cpu))
- return -ENODEV;
-
dev = get_cpu_device(cpu);
cpuclk = clk_get(dev, "cpu_clk");
@@ -123,7 +114,7 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
return PTR_ERR(cpuclk);
}
- policy->cur = policy->min = policy->max = sh_cpufreq_get(cpu);
+ policy->cur = sh_cpufreq_get(cpu);
freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
if (freq_table) {
@@ -136,15 +127,12 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
dev_notice(dev, "no frequency table found, falling back "
"to rate rounding.\n");
- policy->cpuinfo.min_freq =
+ policy->min = policy->cpuinfo.min_freq =
(clk_round_rate(cpuclk, 1) + 500) / 1000;
- policy->cpuinfo.max_freq =
+ policy->max = policy->cpuinfo.max_freq =
(clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
}
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
-
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
dev_info(dev, "CPU Frequencies - Minimum %u.%03u MHz, "
diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 489fc15f319..306ae462bba 100644
--- a/arch/sparc/kernel/us2e_cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -234,9 +234,6 @@ static unsigned int us2e_freq_get(unsigned int cpu)
cpumask_t cpus_allowed;
unsigned long clock_tick, estar;
- if (!cpu_online(cpu))
- return 0;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -248,16 +245,15 @@ static unsigned int us2e_freq_get(unsigned int cpu)
return clock_tick / estar_to_divisor(estar);
}
-static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
+static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
+ unsigned int index)
{
+ unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq;
unsigned long clock_tick, divisor, old_divisor, estar;
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
- if (!cpu_online(cpu))
- return;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -272,14 +268,13 @@ static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
freqs.old = clock_tick / old_divisor;
freqs.new = new_freq;
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (old_divisor != divisor)
us2e_transition(estar, new_bits, clock_tick * 1000,
old_divisor, divisor);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
}
@@ -295,7 +290,7 @@ static int us2e_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &new_index))
return -EINVAL;
- us2e_set_cpu_divider_index(policy->cpu, new_index);
+ us2e_set_cpu_divider_index(policy, new_index);
return 0;
}
@@ -335,7 +330,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us2e_driver)
- us2e_set_cpu_divider_index(policy->cpu, 0);
+ us2e_set_cpu_divider_index(policy, 0);
return 0;
}
diff --git a/arch/sparc/kernel/us3_cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index eb1624b931d..c71ee142347 100644
--- a/arch/sparc/kernel/us3_cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -82,9 +82,6 @@ static unsigned int us3_freq_get(unsigned int cpu)
unsigned long reg;
unsigned int ret;
- if (!cpu_online(cpu))
- return 0;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -96,15 +93,14 @@ static unsigned int us3_freq_get(unsigned int cpu)
return ret;
}
-static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
+static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
+ unsigned int index)
{
+ unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq, reg;
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
- if (!cpu_online(cpu))
- return;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -131,14 +127,13 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
freqs.old = get_current_freq(cpu, reg);
freqs.new = new_freq;
- freqs.cpu = cpu;
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
reg &= ~SAFARI_CFG_DIV_MASK;
reg |= new_bits;
write_safari_cfg(reg);
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
}
@@ -156,7 +151,7 @@ static int us3_freq_target(struct cpufreq_policy *policy,
&new_index))
return -EINVAL;
- us3_set_cpu_divider_index(policy->cpu, new_index);
+ us3_set_cpu_divider_index(policy, new_index);
return 0;
}
@@ -192,7 +187,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us3_driver)
- us3_set_cpu_divider_index(policy->cpu, 0);
+ us3_set_cpu_divider_index(policy, 0);
return 0;
}
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 7e4d7732795..156829f4576 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -121,7 +121,6 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
target_freq, relation, &index))
return -EINVAL;
- freqs.cpu = policy->cpu;
freqs.old = spear_cpufreq_get(0);
newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000;
@@ -158,8 +157,7 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
freqs.new = newfreq / 1000;
freqs.new /= mult;
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (mult == 2)
ret = spear1340_set_cpu_rate(srcclk, newfreq);
@@ -172,8 +170,7 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
freqs.new = clk_get_rate(spear_cpufreq.clk) / 1000;
}
- for_each_cpu(freqs.cpu, policy->cpus)
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 3a953d519f4..618e6f417b1 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -457,7 +457,7 @@ static int centrino_target (struct cpufreq_policy *policy,
unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu;
struct cpufreq_freqs freqs;
int retval = 0;
- unsigned int j, k, first_cpu, tmp;
+ unsigned int j, first_c