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-rw-r--r--Documentation/acpi/acpi-lid.txt16
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt16
-rw-r--r--Documentation/admin-guide/pm/cpufreq.rst19
-rw-r--r--Documentation/admin-guide/pm/index.rst1
-rw-r--r--Documentation/admin-guide/pm/intel_pstate.rst755
-rw-r--r--Documentation/cpu-freq/intel-pstate.txt281
-rw-r--r--Documentation/devicetree/bindings/clock/sunxi-ccu.txt7
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-mvebu.txt6
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt2
-rw-r--r--Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt6
-rw-r--r--Documentation/devicetree/bindings/mfd/stm32-timers.txt2
-rw-r--r--Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt2
-rw-r--r--Documentation/devicetree/bindings/net/dsa/b53.txt2
-rw-r--r--Documentation/devicetree/bindings/net/dsa/marvell.txt4
-rw-r--r--Documentation/devicetree/bindings/net/fsl-fec.txt4
-rw-r--r--Documentation/devicetree/bindings/net/smsc911x.txt1
-rw-r--r--Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt2
-rw-r--r--Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt31
-rw-r--r--Documentation/devicetree/bindings/usb/dwc2.txt1
-rw-r--r--Documentation/input/devices/edt-ft5x06.rst2
-rw-r--r--Documentation/networking/dpaa.txt194
-rw-r--r--Documentation/networking/scaling.txt2
-rw-r--r--Documentation/networking/tcp.txt31
-rw-r--r--Documentation/sound/hd-audio/models.rst114
-rw-r--r--Documentation/usb/typec.rst6
-rw-r--r--Documentation/watchdog/watchdog-parameters.txt2
-rw-r--r--MAINTAINERS50
-rw-r--r--Makefile6
-rw-r--r--arch/alpha/kernel/osf_sys.c6
-rw-r--r--arch/arc/mm/mmap.c2
-rw-r--r--arch/arm/boot/compressed/efi-header.S4
-rw-r--r--arch/arm/boot/compressed/head.S17
-rw-r--r--arch/arm/boot/dts/am335x-sl50.dts8
-rw-r--r--arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi2
-rw-r--r--arch/arm/boot/dts/bcm283x.dtsi27
-rw-r--r--arch/arm/boot/dts/dra7-evm.dts2
-rw-r--r--arch/arm/boot/dts/dra7.dtsi4
-rw-r--r--arch/arm/boot/dts/imx53-qsrb.dts2
-rw-r--r--arch/arm/boot/dts/imx6sx-sdb.dts17
-rw-r--r--arch/arm/boot/dts/imx6ul-14x14-evk.dts6
l---------arch/arm/boot/dts/include/arm1
l---------arch/arm/boot/dts/include/arm641
l---------arch/arm/boot/dts/include/dt-bindings1
-rw-r--r--arch/arm/boot/dts/keystone-k2l-netcp.dtsi4
-rw-r--r--arch/arm/boot/dts/keystone-k2l.dtsi8
-rw-r--r--arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts6
-rw-r--r--arch/arm/boot/dts/mt7623.dtsi2
-rw-r--r--arch/arm/boot/dts/omap3-gta04.dtsi3
-rw-r--r--arch/arm/boot/dts/omap4-panda-a4.dts2
-rw-r--r--arch/arm/boot/dts/omap4-panda-es.dts2
-rw-r--r--arch/arm/boot/dts/sunxi-h3-h5.dtsi7
-rw-r--r--arch/arm/boot/dts/versatile-pb.dts2
-rw-r--r--arch/arm/common/mcpm_entry.c6
-rw-r--r--arch/arm/configs/gemini_defconfig68
-rw-r--r--arch/arm/include/asm/device.h3
-rw-r--r--arch/arm/include/asm/kvm_coproc.h3
-rw-r--r--arch/arm/include/asm/pgtable-nommu.h1
-rw-r--r--arch/arm/kvm/coproc.c106
-rw-r--r--arch/arm/kvm/handle_exit.c4
-rw-r--r--arch/arm/kvm/hyp/Makefile2
-rw-r--r--arch/arm/kvm/hyp/switch.c4
-rw-r--r--arch/arm/kvm/init.S5
-rw-r--r--arch/arm/kvm/trace.h8
-rw-r--r--arch/arm/mach-at91/Kconfig1
-rw-r--r--arch/arm/mach-at91/pm.c2
-rw-r--r--arch/arm/mach-bcm/bcm_kona_smc.c2
-rw-r--r--arch/arm/mach-cns3xxx/core.c2
-rw-r--r--arch/arm/mach-davinci/pm.c7
-rw-r--r--arch/arm/mach-omap2/common.h3
-rw-r--r--arch/arm/mach-omap2/omap-mpuss-lowpower.c10
-rw-r--r--arch/arm/mach-omap2/omap-smp.c11
-rw-r--r--arch/arm/mach-omap2/prm_common.c2
-rw-r--r--arch/arm/mach-omap2/vc.c2
-rw-r--r--arch/arm/mach-spear/time.c2
-rw-r--r--arch/arm/mm/dma-mapping.c29
-rw-r--r--arch/arm/mm/mmap.c4
-rw-r--r--arch/arm64/Kconfig4
-rw-r--r--arch/arm64/Kconfig.platforms5
-rw-r--r--arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi5
-rw-r--r--arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi2
l---------arch/arm64/boot/dts/allwinner/sunxi-h3-h5.dtsi1
-rw-r--r--arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts78
-rw-r--r--arch/arm64/boot/dts/hisilicon/hi6220.dtsi31
l---------arch/arm64/boot/dts/include/arm1
l---------arch/arm64/boot/dts/include/arm641
l---------arch/arm64/boot/dts/include/dt-bindings1
-rw-r--r--arch/arm64/boot/dts/marvell/armada-3720-db.dts8
-rw-r--r--arch/arm64/boot/dts/marvell/armada-37xx.dtsi73
-rw-r--r--arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi3
-rw-r--r--arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi3
-rw-r--r--arch/arm64/boot/dts/mediatek/mt8173-evb.dts3
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts2
-rw-r--r--arch/arm64/configs/defconfig116
-rw-r--r--arch/arm64/include/asm/acpi.h6
-rw-r--r--arch/arm64/include/asm/atomic_ll_sc.h1
-rw-r--r--arch/arm64/include/asm/cpufeature.h12
-rw-r--r--arch/arm64/include/asm/kvm_host.h8
-rw-r--r--arch/arm64/include/asm/sysreg.h4
-rw-r--r--arch/arm64/kernel/cpufeature.c23
-rw-r--r--arch/arm64/kernel/pci.c4
-rw-r--r--arch/arm64/kernel/perf_event.c23
-rw-r--r--arch/arm64/kvm/hyp-init.S11
-rw-r--r--arch/arm64/kvm/hyp/Makefile2
-rw-r--r--arch/arm64/kvm/vgic-sys-reg-v3.c10
-rw-r--r--arch/arm64/net/bpf_jit_comp.c12
l---------arch/cris/boot/dts/include/dt-bindings1
-rw-r--r--arch/frv/include/asm/timex.h6
-rw-r--r--arch/frv/mm/elf-fdpic.c2
-rw-r--r--arch/hexagon/mm/uaccess.c5
l---------arch/metag/boot/dts/include/dt-bindings1
-rw-r--r--arch/mips/boot/Makefile10
l---------arch/mips/boot/dts/include/dt-bindings1
-rw-r--r--arch/mips/include/asm/highmem.h5
-rw-r--r--arch/mips/include/asm/kprobes.h3
-rw-r--r--arch/mips/include/asm/pgtable-32.h7
-rw-r--r--arch/mips/kernel/branch.c4
-rw-r--r--arch/mips/kernel/ftrace.c24
-rw-r--r--arch/mips/kernel/perf_event_mipsxx.c6
-rw-r--r--arch/mips/kernel/process.c1
-rw-r--r--arch/mips/kvm/tlb.c6
-rw-r--r--arch/mips/mm/mmap.c2
-rw-r--r--arch/mips/mm/pgtable-32.c6
-rw-r--r--arch/openrisc/kernel/process.c2
-rw-r--r--arch/parisc/kernel/sys_parisc.c15
-rw-r--r--arch/powerpc/Kconfig21
l---------arch/powerpc/boot/dts/include/dt-bindings1
-rw-r--r--arch/powerpc/include/asm/book3s/64/hash-4k.h2
-rw-r--r--arch/powerpc/include/asm/bug.h2
-rw-r--r--arch/powerpc/include/asm/cputable.h3
-rw-r--r--arch/powerpc/include/asm/kprobes.h1
-rw-r--r--arch/powerpc/include/asm/module.h4
-rw-r--r--arch/powerpc/include/asm/page.h12
-rw-r--r--arch/powerpc/include/asm/processor.h25
-rw-r--r--arch/powerpc/include/asm/topology.h14
-rw-r--r--arch/powerpc/include/asm/xive.h12
-rw-r--r--arch/powerpc/include/uapi/asm/cputable.h2
-rw-r--r--arch/powerpc/kernel/cputable.c3
-rw-r--r--arch/powerpc/kernel/dt_cpu_ftrs.c58
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S11
-rw-r--r--arch/powerpc/kernel/idle_book3s.S2
-rw-r--r--arch/powerpc/kernel/kprobes.c20
-rw-r--r--arch/powerpc/kernel/process.c22
-rw-r--r--arch/powerpc/kernel/prom.c2
-rw-r--r--arch/powerpc/kernel/setup-common.c2
-rw-r--r--arch/powerpc/kernel/setup_64.c35
-rw-r--r--arch/powerpc/kernel/trace/ftrace_64_mprofile.S59
-rw-r--r--arch/powerpc/kvm/Kconfig2
-rw-r--r--arch/powerpc/kvm/Makefile4
-rw-r--r--arch/powerpc/kvm/book3s_64_vio_hv.c13
-rw-r--r--arch/powerpc/kvm/book3s_hv.c51
-rw-r--r--arch/powerpc/kvm/book3s_hv_builtin.c9
-rw-r--r--arch/powerpc/kvm/book3s_hv_interrupts.S12
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S75
-rw-r--r--arch/powerpc/kvm/book3s_pr_papr.c70
-rw-r--r--arch/powerpc/kvm/book3s_xive_template.c4
-rw-r--r--arch/powerpc/kvm/powerpc.c4
-rw-r--r--arch/powerpc/mm/dump_linuxpagetables.c7
-rw-r--r--arch/powerpc/mm/hugetlbpage-radix.c2
-rw-r--r--arch/powerpc/mm/mmap.c4
-rw-r--r--arch/powerpc/mm/mmu_context_book3s64.c2
-rw-r--r--arch/powerpc/mm/slice.c2
-rw-r--r--arch/powerpc/perf/perf_regs.c3
-rw-r--r--arch/powerpc/perf/power9-pmu.c4
-rw-r--r--arch/powerpc/platforms/Kconfig11
-rw-r--r--arch/powerpc/platforms/cell/spu_base.c4
-rw-r--r--arch/powerpc/platforms/cell/spufs/coredump.c2
-rw-r--r--arch/powerpc/platforms/powernv/npu-dma.c102
-rw-r--r--arch/powerpc/platforms/powernv/subcore.c8
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c2
-rw-r--r--arch/powerpc/sysdev/simple_gpio.c3
-rw-r--r--arch/powerpc/sysdev/xive/common.c2
-rw-r--r--arch/s390/Kconfig3
-rw-r--r--arch/s390/configs/default_defconfig39
-rw-r--r--arch/s390/configs/gcov_defconfig28
-rw-r--r--arch/s390/configs/performance_defconfig27
-rw-r--r--arch/s390/configs/zfcpdump_defconfig6
-rw-r--r--arch/s390/defconfig8
-rw-r--r--arch/s390/include/asm/debug.h3
-rw-r--r--arch/s390/include/asm/dis.h2
-rw-r--r--arch/s390/include/asm/kprobes.h20
-rw-r--r--arch/s390/include/asm/kvm_host.h1
-rw-r--r--arch/s390/include/asm/sysinfo.h2
-rw-r--r--arch/s390/kernel/debug.c8
-rw-r--r--arch/s390/kernel/entry.S40
-rw-r--r--arch/s390/kernel/ftrace.c4
-rw-r--r--arch/s390/kernel/vmlinux.lds.S8
-rw-r--r--arch/s390/kvm/gaccess.c15
-rw-r--r--arch/s390/kvm/interrupt.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c2
-rw-r--r--arch/s390/lib/probes.c1
-rw-r--r--arch/s390/lib/uaccess.c4
-rw-r--r--arch/s390/mm/mmap.c4
-rw-r--r--arch/sh/mm/mmap.c4
-rw-r--r--arch/sparc/Kconfig15
-rw-r--r--arch/sparc/include/asm/hugetlb.h6
-rw-r--r--arch/sparc/include/asm/mmu_64.h2
-rw-r--r--arch/sparc/include/asm/mmu_context_64.h32
-rw-r--r--arch/sparc/include/asm/pgtable_32.h4
-rw-r--r--arch/sparc/include/asm/pil.h1
-rw-r--r--arch/sparc/include/asm/setup.h2
-rw-r--r--arch/sparc/include/asm/vio.h1
-rw-r--r--arch/sparc/kernel/ds.c2
-rw-r--r--arch/sparc/kernel/ftrace.c13
-rw-r--r--arch/sparc/kernel/irq_64.c17
-rw-r--r--arch/sparc/kernel/kernel.h1
-rw-r--r--arch/sparc/kernel/smp_64.c31
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c4
-rw-r--r--arch/sparc/kernel/tsb.S11
-rw-r--r--arch/sparc/kernel/ttable_64.S2
-rw-r--r--arch/sparc/kernel/vio.c68
-rw-r--r--arch/sparc/lib/Makefile1
-rw-r--r--arch/sparc/lib/multi3.S35
-rw-r--r--arch/sparc/mm/hugetlbpage.c2
-rw-r--r--arch/sparc/mm/init_32.c2
-rw-r--r--arch/sparc/mm/init_64.c89
-rw-r--r--arch/sparc/mm/tsb.c7
-rw-r--r--arch/sparc/mm/ultra.S5
-rw-r--r--arch/tile/mm/hugetlbpage.c2
-rw-r--r--arch/x86/Kconfig6
-rw-r--r--arch/x86/Makefile2
-rw-r--r--arch/x86/boot/compressed/Makefile2
-rw-r--r--arch/x86/entry/entry_32.S30
-rw-r--r--arch/x86/entry/entry_64.S11
-rw-r--r--arch/x86/include/asm/extable.h1
-rw-r--r--arch/x86/include/asm/kvm_emulate.h1
-rw-r--r--arch/x86/include/asm/kvm_host.h2
-rw-r--r--arch/x86/include/asm/mce.h1
-rw-r--r--arch/x86/include/asm/uaccess.h11
-rw-r--r--arch/x86/kernel/alternative.c9
-rw-r--r--arch/x86/kernel/cpu/cyrix.c1
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c13
-rw-r--r--arch/x86/kernel/cpu/microcode/amd.c16
-rw-r--r--arch/x86/kernel/cpu/microcode/intel.c3
-rw-r--r--arch/x86/kernel/fpu/init.c1
-rw-r--r--arch/x86/kernel/ftrace.c20
-rw-r--r--arch/x86/kernel/kprobes/core.c9
-rw-r--r--arch/x86/kernel/kvm.c2
-rw-r--r--arch/x86/kernel/process_32.c2
-rw-r--r--arch/x86/kernel/setup.c4
-rw-r--r--arch/x86/kernel/sys_x86_64.c4
-rw-r--r--arch/x86/kernel/traps.c2
-rw-r--r--arch/x86/kernel/unwind_frame.c49
-rw-r--r--arch/x86/kvm/cpuid.c20
-rw-r--r--arch/x86/kvm/emulate.c3
-rw-r--r--arch/x86/kvm/lapic.c5
-rw-r--r--arch/x86/kvm/mmu.c7
-rw-r--r--arch/x86/kvm/mmu.h1
-rw-r--r--arch/x86/kvm/paging_tmpl.h35
-rw-r--r--arch/x86/kvm/pmu_intel.c2
-rw-r--r--arch/x86/kvm/svm.c29
-rw-r--r--arch/x86/kvm/vmx.c153
-rw-r--r--arch/x86/kvm/x86.c117
-rw-r--r--arch/x86/mm/extable.c3
-rw-r--r--arch/x86/mm/hugetlbpage.c2
-rw-r--r--arch/x86/mm/init.c6
-rw-r--r--arch/x86/mm/pageattr.c2
-rw-r--r--arch/x86/platform/efi/efi.c6
-rw-r--r--arch/x86/platform/efi/efi_64.c79
-rw-r--r--arch/x86/platform/efi/quirks.c3
-rw-r--r--arch/x86/xen/enlighten_pv.c15
-rw-r--r--arch/x86/xen/mmu.c2
-rw-r--r--arch/x86/xen/mmu_pv.c102
-rw-r--r--arch/xtensa/include/asm/irq.h3
-rw-r--r--arch/xtensa/kernel/irq.c5
-rw-r--r--arch/xtensa/kernel/setup.c3
-rw-r--r--arch/xtensa/kernel/syscall.c2
-rw-r--r--arch/xtensa/kernel/vmlinux.lds.S6
-rw-r--r--arch/xtensa/platforms/iss/simdisk.c3
-rw-r--r--arch/xtensa/platforms/xtfpga/include/platform/hardware.h6
-rw-r--r--arch/xtensa/platforms/xtfpga/setup.c10
-rw-r--r--block/bfq-cgroup.c116
-rw-r--r--block/bfq-iosched.c2
-rw-r--r--block/bfq-iosched.h23
-rw-r--r--block/bio-integrity.c3
-rw-r--r--block/blk-cgroup.c2
-rw-r--r--block/blk-core.c10
-rw-r--r--block/blk-mq-sched.c58
-rw-r--r--block/blk-mq-sched.h9
-rw-r--r--block/blk-mq.c70
-rw-r--r--block/blk-sysfs.c42
-rw-r--r--block/blk-throttle.c184
-rw-r--r--block/blk.h2
-rw-r--r--block/cfq-iosched.c17
-rw-r--r--block/partition-generic.c4
-rw-r--r--block/partitions/msdos.c2
-rw-r--r--crypto/asymmetric_keys/public_key.c2
-rw-r--r--crypto/asymmetric_keys/verify_pefile.c4
-rw-r--r--crypto/asymmetric_keys/x509_cert_parser.c1
-rw-r--r--crypto/drbg.c5
-rw-r--r--crypto/gcm.c6
-rw-r--r--crypto/skcipher.c40
-rw-r--r--drivers/acpi/acpica/tbutils.c38
-rw-r--r--drivers/acpi/acpica/utresrc.c9
-rw-r--r--drivers/acpi/arm64/iort.c22
-rw-r--r--drivers/acpi/battery.c2
-rw-r--r--drivers/acpi/button.c16
-rw-r--r--drivers/acpi/device_pm.c3
-rw-r--r--drivers/acpi/nfit/mce.c2
-rw-r--r--drivers/acpi/scan.c71
-rw-r--r--drivers/acpi/sleep.c28
-rw-r--r--drivers/acpi/sysfs.c7
-rw-r--r--drivers/ata/ahci.c38
-rw-r--r--drivers/ata/libahci_platform.c5
-rw-r--r--drivers/ata/libata-core.c2
-rw-r--r--drivers/ata/sata_mv.c13
-rw-r--r--drivers/ata/sata_rcar.c15
-rw-r--r--drivers/base/power/main.c5
-rw-r--r--drivers/base/power/wakeup.c29
-rw-r--r--drivers/block/drbd/drbd_req.c27
-rw-r--r--drivers/block/loop.c3
-rw-r--r--drivers/block/nbd.c15
-rw-r--r--drivers/block/rbd.c2
-rw-r--r--drivers/block/xen-blkback/blkback.c26
-rw-r--r--drivers/block/xen-blkback/common.h26
-rw-r--r--drivers/block/xen-blkback/xenbus.c23
-rw-r--r--drivers/char/lp.c6
-rw-r--r--drivers/char/mem.c5
-rw-r--r--drivers/char/pcmcia/cm4040_cs.c6
-rw-r--r--drivers/char/random.c51
-rw-r--r--drivers/clk/meson/Kconfig1
-rw-r--r--drivers/clk/sunxi-ng/Kconfig1
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun50i-a64.h4
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun5i.c2
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun6i-a31.c2
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun8i-h3.h4
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun8i-v3s.c2
-rw-r--r--drivers/cpufreq/Kconfig.arm9
-rw-r--r--drivers/cpufreq/Makefile2
-rw-r--r--drivers/cpufreq/cpufreq.c1
-rw-r--r--drivers/cpufreq/cpufreq_conservative.c4
-rw-r--r--drivers/cpufreq/intel_pstate.c5
-rw-r--r--drivers/cpufreq/kirkwood-cpufreq.c19
-rw-r--r--drivers/cpuidle/dt_idle_states.c4
-rw-r--r--drivers/dax/super.c11
-rw-r--r--drivers/devfreq/event/exynos-nocp.c6
-rw-r--r--drivers/devfreq/event/exynos-ppmu.c8
-rw-r--r--drivers/dma/ep93xx_dma.c39
-rw-r--r--drivers/dma/mv_xor_v2.c109
-rw-r--r--drivers/dma/pl330.c3
-rw-r--r--drivers/dma/sh/rcar-dmac.c3
-rw-r--r--drivers/dma/sh/usb-dmac.c2
-rw-r--r--drivers/edac/amd64_edac.c40
-rw-r--r--drivers/firmware/dmi-id.c2
-rw-r--r--drivers/firmware/dmi_scan.c50
-rw-r--r--drivers/firmware/efi/efi-bgrt.c27
-rw-r--r--drivers/firmware/efi/efi-pstore.c29
-rw-r--r--drivers/firmware/efi/libstub/secureboot.c4
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1567 files changed, 17173 insertions, 9500 deletions
diff --git a/Documentation/acpi/acpi-lid.txt b/Documentation/acpi/acpi-lid.txt
index 22cb3091f297..effe7af3a5af 100644
--- a/Documentation/acpi/acpi-lid.txt
+++ b/Documentation/acpi/acpi-lid.txt
@@ -59,20 +59,28 @@ button driver uses the following 3 modes in order not to trigger issues.
If the userspace hasn't been prepared to ignore the unreliable "opened"
events and the unreliable initial state notification, Linux users can use
the following kernel parameters to handle the possible issues:
-A. button.lid_init_state=open:
+A. button.lid_init_state=method:
+ When this option is specified, the ACPI button driver reports the
+ initial lid state using the returning value of the _LID control method
+ and whether the "opened"/"closed" events are paired fully relies on the
+ firmware implementation.
+ This option can be used to fix some platforms where the returning value
+ of the _LID control method is reliable but the initial lid state
+ notification is missing.
+ This option is the default behavior during the period the userspace
+ isn't ready to handle the buggy AML tables.
+B. button.lid_init_state=open:
When this option is specified, the ACPI button driver always reports the
initial lid state as "opened" and whether the "opened"/"closed" events
are paired fully relies on the firmware implementation.
This may fix some platforms where the returning value of the _LID
control method is not reliable and the initial lid state notification is
missing.
- This option is the default behavior during the period the userspace
- isn't ready to handle the buggy AML tables.
If the userspace has been prepared to ignore the unreliable "opened" events
and the unreliable initial state notification, Linux users should always
use the following kernel parameter:
-B. button.lid_init_state=ignore:
+C. button.lid_init_state=ignore:
When this option is specified, the ACPI button driver never reports the
initial lid state and there is a compensation mechanism implemented to
ensure that the reliable "closed" notifications can always be delievered
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 15f79c27748d..7737ab5d04b2 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -866,6 +866,15 @@
dscc4.setup= [NET]
+ dt_cpu_ftrs= [PPC]
+ Format: {"off" | "known"}
+ Control how the dt_cpu_ftrs device-tree binding is
+ used for CPU feature discovery and setup (if it
+ exists).
+ off: Do not use it, fall back to legacy cpu table.
+ known: Do not pass through unknown features to guests
+ or userspace, only those that the kernel is aware of.
+
dump_apple_properties [X86]
Dump name and content of EFI device properties on
x86 Macs. Useful for driver authors to determine
@@ -3802,6 +3811,13 @@
expediting. Set to zero to disable automatic
expediting.
+ stack_guard_gap= [MM]
+ override the default stack gap protection. The value
+ is in page units and it defines how many pages prior
+ to (for stacks growing down) resp. after (for stacks
+ growing up) the main stack are reserved for no other
+ mapping. Default value is 256 pages.
+
stacktrace [FTRACE]
Enabled the stack tracer on boot up.
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index 289c80f7760e..09aa2e949787 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -1,4 +1,5 @@
.. |struct cpufreq_policy| replace:: :c:type:`struct cpufreq_policy <cpufreq_policy>`
+.. |intel_pstate| replace:: :doc:`intel_pstate <intel_pstate>`
=======================
CPU Performance Scaling
@@ -75,7 +76,7 @@ feedback registers, as that information is typically specific to the hardware
interface it comes from and may not be easily represented in an abstract,
platform-independent way. For this reason, ``CPUFreq`` allows scaling drivers
to bypass the governor layer and implement their own performance scaling
-algorithms. That is done by the ``intel_pstate`` scaling driver.
+algorithms. That is done by the |intel_pstate| scaling driver.
``CPUFreq`` Policy Objects
@@ -174,13 +175,13 @@ necessary to restart the scaling governor so that it can take the new online CPU
into account. That is achieved by invoking the governor's ``->stop`` and
``->start()`` callbacks, in this order, for the entire policy.
-As mentioned before, the ``intel_pstate`` scaling driver bypasses the scaling
+As mentioned before, the |intel_pstate| scaling driver bypasses the scaling
governor layer of ``CPUFreq`` and provides its own P-state selection algorithms.
-Consequently, if ``intel_pstate`` is used, scaling governors are not attached to
+Consequently, if |intel_pstate| is used, scaling governors are not attached to
new policy objects. Instead, the driver's ``->setpolicy()`` callback is invoked
to register per-CPU utilization update callbacks for each policy. These
callbacks are invoked by the CPU scheduler in the same way as for scaling
-governors, but in the ``intel_pstate`` case they both determine the P-state to
+governors, but in the |intel_pstate| case they both determine the P-state to
use and change the hardware configuration accordingly in one go from scheduler
context.
@@ -257,7 +258,7 @@ are the following:
``scaling_available_governors``
List of ``CPUFreq`` scaling governors present in the kernel that can
- be attached to this policy or (if the ``intel_pstate`` scaling driver is
+ be attached to this policy or (if the |intel_pstate| scaling driver is
in use) list of scaling algorithms provided by the driver that can be
applied to this policy.
@@ -274,7 +275,7 @@ are the following:
the CPU is actually running at (due to hardware design and other
limitations).
- Some scaling drivers (e.g. ``intel_pstate``) attempt to provide
+ Some scaling drivers (e.g. |intel_pstate|) attempt to provide
information more precisely reflecting the current CPU frequency through
this attribute, but that still may not be the exact current CPU
frequency as seen by the hardware at the moment.
@@ -284,13 +285,13 @@ are the following:
``scaling_governor``
The scaling governor currently attached to this policy or (if the
- ``intel_pstate`` scaling driver is in use) the scaling algorithm
+ |intel_pstate| scaling driver is in use) the scaling algorithm
provided by the driver that is currently applied to this policy.
This attribute is read-write and writing to it will cause a new scaling
governor to be attached to this policy or a new scaling algorithm
provided by the scaling driver to be applied to it (in the
- ``intel_pstate`` case), as indicated by the string written to this
+ |intel_pstate| case), as indicated by the string written to this
attribute (which must be one of the names listed by the
``scaling_available_governors`` attribute described above).
@@ -619,7 +620,7 @@ This file is located under :file:`/sys/devices/system/cpu/cpufreq/` and controls
the "boost" setting for the whole system. It is not present if the underlying
scaling driver does not support the frequency boost mechanism (or supports it,
but provides a driver-specific interface for controlling it, like
-``intel_pstate``).
+|intel_pstate|).
If the value in this file is 1, the frequency boost mechanism is enabled. This
means that either the hardware can be put into states in which it is able to
diff --git a/Documentation/admin-guide/pm/index.rst b/Documentation/admin-guide/pm/index.rst
index c80f087321fc..7f148f76f432 100644
--- a/Documentation/admin-guide/pm/index.rst
+++ b/Documentation/admin-guide/pm/index.rst
@@ -6,6 +6,7 @@ Power Management
:maxdepth: 2
cpufreq
+ intel_pstate
.. only:: subproject and html
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
new file mode 100644
index 000000000000..33d703989ea8
--- /dev/null
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -0,0 +1,755 @@
+===============================================
+``intel_pstate`` CPU Performance Scaling Driver
+===============================================
+
+::
+
+ Copyright (c) 2017 Intel Corp., Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+
+General Information
+===================
+
+``intel_pstate`` is a part of the
+:doc:`CPU performance scaling subsystem <cpufreq>` in the Linux kernel
+(``CPUFreq``). It is a scaling driver for the Sandy Bridge and later
+generations of Intel processors. Note, however, that some of those processors
+may not be supported. [To understand ``intel_pstate`` it is necessary to know
+how ``CPUFreq`` works in general, so this is the time to read :doc:`cpufreq` if
+you have not done that yet.]
+
+For the processors supported by ``intel_pstate``, the P-state concept is broader
+than just an operating frequency or an operating performance point (see the
+`LinuxCon Europe 2015 presentation by Kristen Accardi <LCEU2015_>`_ for more
+information about that). For this reason, the representation of P-states used
+by ``intel_pstate`` internally follows the hardware specification (for details
+refer to `Intel® 64 and IA-32 Architectures Software Developer’s Manual
+Volume 3: System Programming Guide <SDM_>`_). However, the ``CPUFreq`` core
+uses frequencies for identifying operating performance points of CPUs and
+frequencies are involved in the user space interface exposed by it, so
+``intel_pstate`` maps its internal representation of P-states to frequencies too
+(fortunately, that mapping is unambiguous). At the same time, it would not be
+practical for ``intel_pstate`` to supply the ``CPUFreq`` core with a table of
+available frequencies due to the possible size of it, so the driver does not do
+that. Some functionality of the core is limited by that.
+
+Since the hardware P-state selection interface used by ``intel_pstate`` is
+available at the logical CPU level, the driver always works with individual
+CPUs. Consequently, if ``intel_pstate`` is in use, every ``CPUFreq`` policy
+object corresponds to one logical CPU and ``CPUFreq`` policies are effectively
+equivalent to CPUs. In particular, this means that they become "inactive" every
+time the corresponding CPU is taken offline and need to be re-initialized when
+it goes back online.
+
+``intel_pstate`` is not modular, so it cannot be unloaded, which means that the
+only way to pass early-configuration-time parameters to it is via the kernel
+command line. However, its configuration can be adjusted via ``sysfs`` to a
+great extent. In some configurations it even is possible to unregister it via
+``sysfs`` which allows another ``CPUFreq`` scaling driver to be loaded and
+registered (see `below <status_attr_>`_).
+
+
+Operation Modes
+===============
+
+``intel_pstate`` can operate in three different modes: in the active mode with
+or without hardware-managed P-states support and in the passive mode. Which of
+them will be in effect depends on what kernel command line options are used and
+on the capabilities of the processor.
+
+Active Mode
+-----------
+
+This is the default operation mode of ``intel_pstate``. If it works in this
+mode, the ``scaling_driver`` policy attribute in ``sysfs`` for all ``CPUFreq``
+policies contains the string "intel_pstate".
+
+In this mode the driver bypasses the scaling governors layer of ``CPUFreq`` and
+provides its own scaling algorithms for P-state selection. Those algorithms
+can be applied to ``CPUFreq`` policies in the same way as generic scaling
+governors (that is, through the ``scaling_governor`` policy attribute in
+``sysfs``). [Note that different P-state selection algorithms may be chosen for
+different policies, but that is not recommended.]
+
+They are not generic scaling governors, but their names are the same as the
+names of some of those governors. Moreover, confusingly enough, they generally
+do not work in the same way as the generic governors they share the names with.
+For example, the ``powersave`` P-state selection algorithm provided by
+``intel_pstate`` is not a counterpart of the generic ``powersave`` governor
+(roughly, it corresponds to the ``schedutil`` and ``ondemand`` governors).
+
+There are two P-state selection algorithms provided by ``intel_pstate`` in the
+active mode: ``powersave`` and ``performance``. The way they both operate
+depends on whether or not the hardware-managed P-states (HWP) feature has been
+enabled in the processor and possibly on the processor model.
+
+Which of the P-state selection algorithms is used by default depends on the
+:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option.
+Namely, if that option is set, the ``performance`` algorithm will be used by
+default, and the other one will be used by default if it is not set.
+
+Active Mode With HWP
+~~~~~~~~~~~~~~~~~~~~
+
+If the processor supports the HWP feature, it will be enabled during the
+processor initialization and cannot be disabled after that. It is possible
+to avoid enabling it by passing the ``intel_pstate=no_hwp`` argument to the
+kernel in the command line.
+
+If the HWP feature has been enabled, ``intel_pstate`` relies on the processor to
+select P-states by itself, but still it can give hints to the processor's
+internal P-state selection logic. What those hints are depends on which P-state
+selection algorithm has been applied to the given policy (or to the CPU it
+corresponds to).
+
+Even though the P-state selection is carried out by the processor automatically,
+``intel_pstate`` registers utilization update callbacks with the CPU scheduler
+in this mode. However, they are not used for running a P-state selection
+algorithm, but for periodic updates of the current CPU frequency information to
+be made available from the ``scaling_cur_freq`` policy attribute in ``sysfs``.
+
+HWP + ``performance``
+.....................
+
+In this configuration ``intel_pstate`` will write 0 to the processor's
+Energy-Performance Preference (EPP) knob (if supported) or its
+Energy-Performance Bias (EPB) knob (otherwise), which means that the processor's
+internal P-state selection logic is expected to focus entirely on performance.
+
+This will override the EPP/EPB setting coming from the ``sysfs`` interface
+(see `Energy vs Performance Hints`_ below).
+
+Also, in this configuration the range of P-states available to the processor's
+internal P-state selection logic is always restricted to the upper boundary
+(that is, the maximum P-state that the driver is allowed to use).
+
+HWP + ``powersave``
+...................
+
+In this configuration ``intel_pstate`` will set the processor's
+Energy-Performance Preference (EPP) knob (if supported) or its
+Energy-Performance Bias (EPB) knob (otherwise) to whatever value it was
+previously set to via ``sysfs`` (or whatever default value it was
+set to by the platform firmware). This usually causes the processor's
+internal P-state selection logic to be less performance-focused.
+
+Active Mode Without HWP
+~~~~~~~~~~~~~~~~~~~~~~~
+
+This is the default operation mode for processors that do not support the HWP
+feature. It also is used by default with the ``intel_pstate=no_hwp`` argument
+in the kernel command line. However, in this mode ``intel_pstate`` may refuse
+to work with the given processor if it does not recognize it. [Note that
+``intel_pstate`` will never refuse to work with any processor with the HWP
+feature enabled.]
+
+In this mode ``intel_pstate`` registers utilization update callbacks with the
+CPU scheduler in order to run a P-state selection algorithm, either
+``powersave`` or ``performance``, depending on the ``scaling_cur_freq`` policy
+setting in ``sysfs``. The current CPU frequency information to be made
+available from the ``scaling_cur_freq`` policy attribute in ``sysfs`` is
+periodically updated by those utilization update callbacks too.
+
+``performance``
+...............
+
+Without HWP, this P-state selection algorithm is always the same regardless of
+the processor model and platform configuration.
+
+It selects the maximum P-state it is allowed to use, subject to limits set via
+``sysfs``, every time the P-state selection computations are carried out by the
+driver's utilization update callback for the given CPU (that does not happen
+more often than every 10 ms), but the hardware configuration will not be changed
+if the new P-state is the same as the current one.
+
+This is the default P-state selection algorithm if the
+:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option
+is set.
+
+``powersave``
+.............
+
+Without HWP, this P-state selection algorithm generally depends on the
+processor model and/or the system profile setting in the ACPI tables and there
+are two variants of it.
+
+One of them is used with processors from the Atom line and (regardless of the
+processor model) on platforms with the system profile in the ACPI tables set to
+"mobile" (laptops mostly), "tablet", "appliance PC", "desktop", or
+"workstation". It is also used with processors supporting the HWP feature if
+that feature has not been enabled (that is, with the ``intel_pstate=no_hwp``
+argument in the kernel command line). It is similar to the algorithm
+implemented by the generic ``schedutil`` scaling governor except that the
+utilization metric used by it is based on numbers coming from feedback
+registers of the CPU. It generally selects P-states proportional to the
+current CPU utilization, so it is referred to as the "proportional" algorithm.
+
+The second variant of the ``powersave`` P-state selection algorithm, used in all
+of the other cases (generally, on processors from the Core line, so it is
+referred to as the "Core" algorithm), is based on the values read from the APERF
+and MPERF feedback registers and the previously requested target P-state.
+It does not really take CPU utilization into account explicitly, but as a rule
+it causes the CPU P-state to ramp up very quickly in response to increased
+utilization which is generally desirable in server environments.
+
+Regardless of the variant, this algorithm is run by the driver's utilization
+update callback for the given CPU when it is invoked by the CPU scheduler, but
+not more often than every 10 ms (that can be tweaked via ``debugfs`` in `this
+particular case <Tuning Interface in debugfs_>`_). Like in the ``performance``
+case, the hardware configuration is not touched if the new P-state turns out to
+be the same as the current one.
+
+This is the default P-state selection algorithm if the
+:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option
+is not set.
+
+Passive Mode
+------------
+
+This mode is used if the ``intel_pstate=passive`` argument is passed to the
+kernel in the command line (it implies the ``intel_pstate=no_hwp`` setting too).
+Like in the active mode without HWP support, in this mode ``intel_pstate`` may
+refuse to work with the given processor if it does not recognize it.
+
+If the driver works in this mode, the ``scaling_driver`` policy attribute in
+``sysfs`` for all ``CPUFreq`` policies contains the string "intel_cpufreq".
+Then, the driver behaves like a regular ``CPUFreq`` scaling driver. That is,
+it is invoked by generic scaling governors when necessary to talk to the
+hardware in order to change the P-state of a CPU (in particular, the
+``schedutil`` governor can invoke it directly from scheduler context).
+
+While in this mode, ``intel_pstate`` can be used with all of the (generic)
+scaling governors listed by the ``scaling_available_governors`` policy attribute
+in ``sysfs`` (and the P-state selection algorithms described above are not
+used). Then, it is responsible for the configuration of policy objects
+corresponding to CPUs and provides the ``CPUFreq`` core (and the scaling
+governors attached to the policy objects) with accurate information on the
+maximum and minimum operating frequencies supported by the hardware (including
+the so-called "turbo" frequency ranges). In other words, in the passive mode
+the entire range of available P-states is exposed by ``intel_pstate`` to the
+``CPUFreq`` core. However, in this mode the driver does not register
+utilization update callbacks with the CPU scheduler and the ``scaling_cur_freq``
+information comes from the ``CPUFreq`` core (and is the last frequency selected
+by the current scaling governor for the given policy).
+
+
+.. _turbo:
+
+Turbo P-states Support
+======================
+
+In the majority of cases, the entire range of P-states available to
+``intel_pstate`` can be divided into two sub-ranges that correspond to
+different types of processor behavior, above and below a boundary that
+will be referred to as the "turbo threshold" in what follows.
+
+The P-states above the turbo threshold are referred to as "turbo P-states" and
+the whole sub-range of P-states they belong to is referred to as the "turbo
+range". These names are related to the Turbo Boost technology allowing a
+multicore processor to opportunistically increase the P-state of one or more
+cores if there is enough power to do that and if that is not going to cause the
+thermal envelope of the processor package to be exceeded.
+
+Specifically, if software sets the P-state of a CPU core within the turbo range
+(that is, above the turbo threshold), the processor is permitted to take over
+performance scaling control for that core and put it into turbo P-states of its
+choice going forward. However, that permission is interpreted differently by
+different processor generations. Namely, the Sandy Bridge generation of
+processors will never use any P-states above the last one set by software for
+the given core, even if it is within the turbo range, whereas all of the later
+processor generations will take it as a license to use any P-states from the
+turbo range, even above the one set by software. In other words, on those
+processors setting any P-state from the turbo range will enable the processor
+to put the given core into all turbo P-states up to and including the maximum
+supported one as it sees fit.
+
+One important property of turbo P-states is that they are not sustainable. More
+precisely, there is no guarantee that any CPUs will be able to stay in any of
+those states indefinitely, because the power distribution within the processor
+package may change over time or the thermal envelope it was designed for might
+be exceeded if a turbo P-state was used for too long.
+
+In turn, the P-states below the turbo threshold generally are sustainable. In
+fact, if one of them is set by software, the processor is not expected to change
+it to a lower one unless in a thermal stress or a power limit violation
+situation (a higher P-state may still be used if it is set for another CPU in
+the same package at the same time, for example).
+
+Some processors allow multiple cores to be in turbo P-states at the same time,
+but the maximum P-state that can be set for them generally depends on the number
+of cores running concurrently. The maximum turbo P-state that can be set for 3
+cores at the same time usually is lower than the analogous maximum P-state for
+2 cores, which in turn usually is lower than the maximum turbo P-state that can
+be set for 1 core. The one-core maximum turbo P-state is thus the maximum
+supported one overall.
+
+The maximum supported turbo P-state, the turbo threshold (the maximum supported
+non-turbo P-state) and the minimum supported P-state are specific to the
+processor model and can be determined by reading the processor's model-specific
+registers (MSRs). Moreover, some processors support the Configurable TDP
+(Thermal Design Power) feature and, when that feature is enabled, the turbo
+threshold effectively becomes a configurable value that can be set by the
+platform firmware.
+
+Unlike ``_PSS`` objects in the ACPI tables, ``intel_pstate`` always exposes
+the entire range of available P-states, including the whole turbo range, to the
+``CPUFreq`` core and (in the passive mode) to generic scaling governors. This
+generally causes turbo P-states to be set more often when ``intel_pstate`` is
+used relative to ACPI-based CPU performance scaling (see `below <acpi-cpufreq_>`_
+for more information).
+
+Moreover, since ``intel_pstate`` always knows what the real turbo threshold is
+(even if the Configurable TDP feature is enabled in the processor), its
+``no_turbo`` attribute in ``sysfs`` (described `below <no_turbo_attr_>`_) should
+work as expected in all cases (that is, if set to disable turbo P-states, it
+always should prevent ``intel_pstate`` from using them).
+
+
+Processor Support
+=================
+
+To handle a given processor ``intel_pstate`` requires a number of different
+pieces of information on it to be known, including:
+
+ * The minimum supported P-state.
+
+ * The maximum supported `non-turbo P-state <turbo_>`_.
+
+ * Whether or not turbo P-states are supported at all.
+
+ * The maximum supported `one-core turbo P-state <turbo_>`_ (if turbo P-states
+ are supported).
+
+ * The scaling formula to translate the driver's internal representation
+ of P-states into frequencies and the other way around.
+
+Generally, ways to obtain that information are specific to the processor model
+or family. Although it often is possible to obtain all of it from the processor
+itself (using model-specific registers), there are cases in which hardware
+manuals need to be consulted to get to it too.
+
+For this reason, there is a list of supported processors in ``intel_pstate`` and
+the driver initialization will fail if the detected processor is not in that
+list, unless it supports the `HWP feature <Active Mode_>`_. [The interface to
+obtain all of the information listed above is the same for all of the processors
+supporting the HWP feature, which is why they all are supported by
+``intel_pstate``.]
+
+
+User Space Interface in ``sysfs``
+=================================
+
+Global Attributes
+-----------------
+
+``intel_pstate`` exposes several global attributes (files) in ``sysfs`` to
+control its functionality at the system level. They are located in the
+``/sys/devices/system/cpu/cpufreq/intel_pstate/`` directory and affect all
+CPUs.
+
+Some of them are not present if the ``intel_pstate=per_cpu_perf_limits``
+argument is passed to the kernel in the command line.
+
+``max_perf_pct``
+ Maximum P-state the driver is allowed to set in percent of the
+ maximum supported performance level (the highest supported `turbo
+ P-state <turbo_>`_).
+
+ This attribute will not be exposed if the
+ ``intel_pstate=per_cpu_perf_limits`` argument is present in the kernel
+ command line.
+
+``min_perf_pct``
+ Minimum P-state the driver is allowed to set in percent of the
+ maximum supported performance level (the highest supported `turbo
+ P-state <turbo_>`_).
+
+ This attribute will not be exposed if the
+ ``intel_pstate=per_cpu_perf_limits`` argument is present in the kernel
+ command line.
+
+``num_pstates``
+ Number of P-states supported by the processor (between 0 and 255
+ inclusive) including both turbo and non-turbo P-states (see
+ `Turbo P-states Support`_).
+
+ The value of this attribute is not affected by the ``no_turbo``
+ setting described `below <no_turbo_attr_>`_.
+
+ This attribute is read-only.
+
+``turbo_pct``
+ Ratio of the `turbo range <turbo_>`_ size to the size of the entire
+ range of supported P-states, in percent.
+
+ This attribute is read-only.
+
+.. _no_turbo_attr:
+
+``no_turbo``
+ If set (equal to 1), the driver is not allowed to set any turbo P-states
+ (see `Turbo P-states Support`_). If unset (equalt to 0, which is the
+ default), turbo P-states can be set by the driver.
+ [Note that ``intel_pstate`` does not support the general ``boost``
+ attribute (supported by some other scaling drivers) which is replaced
+ by this one.]
+
+ This attrubute does not affect the maximum supported frequency value
+ supplied to the ``CPUFreq`` core and exposed via the policy interface,
+ but it affects the maximum possible value of per-policy P-state limits
+ (see `Interpretation of Policy Attributes`_ below for details).
+
+.. _status_attr:
+
+``status``
+ Operation mode of the driver: "active", "passive" or "off".
+
+ "active"
+ The driver is functional and in the `active mode
+ <Active Mode_>`_.
+
+ "passive"
+ The driver is functional and in the `passive mode
+ <Passive Mode_>`_.
+
+ "off"
+ The driver is not functional (it is not registered as a scaling
+ driver with the ``CPUFreq`` core).
+
+ This attribute can be written to in order to change the driver's
+ operation mode or to unregister it. The string written to it must be
+ one of the possible values of it and, if successful, the write will
+ cause the driver to switch over to the operation mode represented by
+ that string - or to be unregistered in the "off" case. [Actually,
+ switching over from the active mode to the passive mode or the other
+ way around causes the driver to be unregistered and registered again
+ with a different set of callbacks, so all of its settings (the global
+ as well as the per-policy ones) are then reset to their default
+ values, possibly depending on the target operation mode.]
+
+ That only is supported in some configurations, though (for example, if
+ the `HWP feature is enabled in the processor <Active Mode With HWP_>`_,
+ the operation mode of the driver cannot be changed), and if it is not
+ supported in the current configuration, writes to this attribute with
+ fail with an appropriate error.
+
+Interpretation of Policy Attributes
+-----------------------------------
+
+The interpretation of some ``CPUFreq`` policy attributes described in
+:doc:`cpufreq` is special with ``intel_pstate`` as the current scaling driver
+and it generally depends on the driver's `operation mode <Operation Modes_>`_.
+
+First of all, the values of the ``cpuinfo_max_freq``, ``cpuinfo_min_freq`` and
+``scaling_cur_freq`` attributes are produced by applying a processor-specific
+multiplier to the internal P-state representation used by ``intel_pstate``.
+Also, the values of the ``scaling_max_freq`` and ``scaling_min_freq``
+attributes are capped by the frequency corresponding to the maximum P-state that
+the driver is allowed to set.
+
+If the ``no_turbo`` `global attribute <no_turbo_attr_>`_ is set, the driver is
+not allowed to use turbo P-states, so the maximum value of ``scaling_max_freq``
+and ``scaling_min_freq`` is limited to the maximum non-turbo P-state frequency.
+Accordingly, setting ``no_turbo`` causes ``scaling_max_freq`` and
+``scaling_min_freq`` to go down to that value if they were above it before.
+However, the old values of ``scaling_max_freq`` and ``scaling_min_freq`` will be
+restored after unsetting ``no_turbo``, unless these attributes have been written
+to after ``no_turbo`` was set.
+
+If ``no_turbo`` is not set, the maximum possible value of ``scaling_max_freq``
+and ``scaling_min_freq`` corresponds to the maximum supported turbo P-state,
+which also is the value of ``cpuinfo_max_freq`` in either case.
+
+Next, the following policy attributes have special meaning if
+``intel_pstate`` works in the `active mode <Active Mode_>`_:
+
+``scaling_available_governors``
+ List of P-state selection algorithms provided by ``intel_pstate``.
+
+``scaling_governor``
+ P-state selection algorithm provided by ``intel_pstate`` currently in
+ use with the given policy.
+
+``scaling_cur_freq``
+ Frequency of the average P-state of the CPU represented by the given
+ policy for the time interval between the last two invocations of the
+ driver's utilization update callback by the CPU scheduler for that CPU.
+
+The meaning of these attributes in the `passive mode <Passive Mode_>`_ is the
+same as for other scaling drivers.
+
+Additionally, the value of the ``scaling_driver`` attribute for ``intel_pstate``
+depends on the operation mode of the driver. Namely, it is either
+"intel_pstate" (in the `active mode <Active Mode_>`_) or "intel_cpufreq" (in the
+`passive mode <Passive Mode_>`_).
+
+Coordination of P-State Limits
+------------------------------
+
+``intel_pstate`` allows P-state limits to be set in two ways: with the help of
+the ``max_perf_pct`` and ``min_perf_pct`` `global attributes
+<Global Attributes_>`_ or via the ``scaling_max_freq`` and ``scaling_min_freq``
+``CPUFreq`` policy attributes. The coordination between those limits is based
+on the following rules, regardless of the current operation mode of the driver:
+
+ 1. All CPUs are affected by the global limits (that is, none of them can be
+ requested to run faster than the global maximum and none of them can be
+ requested to run slower than the global minimum).
+
+ 2. Each individual CPU is affected by its own per-policy limits (that is, it
+ cannot be requested to run faster than its own per-policy maximum and it
+ cannot be requested to run slower than its own per-policy minimum).
+
+ 3. The global and per-policy limits can be set independently.
+
+If the `HWP feature is enabled in the processor <Active Mode With HWP_>`_, the
+resulting effective values are written into its registers whenever the limits
+change in order to request its internal P-state selection logic to always set
+P-states within these limits. Otherwise, the limits are taken into account by
+scaling governors (in the `passive mode <Passive Mode_>`_) and by the driver
+every time before setting a new P-state for a CPU.
+
+Additionally, if the ``intel_pstate=per_cpu_perf_limits`` command line argument
+is passed to the kernel, ``max_perf_pct`` and ``min_perf_pct`` are not exposed
+at all and the only way to set the limits is by using the policy attributes.
+
+
+Energy vs Performance Hints
+---------------------------
+
+If ``intel_pstate`` works in the `active mode with the HWP feature enabled
+<Active Mode With HWP_>`_ in the processor, additional attributes are present
+in every ``CPUFreq`` policy directory in ``sysfs``. They are intended to allow
+user space to help ``intel_pstate`` to adjust the processor's internal P-state
+selection logic by focusing it on performance or on energy-efficiency, or
+somewhere between the two extremes:
+
+``energy_performance_preference``
+ Current value of the energy vs performance hint for the given policy
+ (or the CPU represented by it).
+
+ The hint can be changed by writing to this attribute.
+
+``energy_performance_available_preferences``
+ List of strings that can be written to the
+ ``energy_performance_preference`` attribute.
+
+ They represent different energy vs performance hints and should be
+ self-explanatory, except that ``default`` represents whatever hint
+ value was set by the platform firmware.
+
+Strings written to the ``energy_performance_preference`` attribute are
+internally translated to integer values written to the processor's
+Energy-Performance Preference (EPP) knob (if supported) or its
+Energy-Performance Bias (EPB) knob.
+
+[Note that tasks may by migrated from one CPU to another by the scheduler's
+load-balancing algorithm and if different energy vs performance hints are
+set for those CPUs, that may lead to undesirable outcomes. To avoid such
+issues it is better to set the same energy vs performance hint for all CPUs
+or to pin every task potentially sensitive to them to a specific CPU.]
+
+.. _acpi-cpufreq:
+
+``intel_pstate`` vs ``acpi-cpufreq``
+====================================
+
+On the majority of systems supported by ``intel_pstate``, the ACPI tables
+provided by the platform firmware contain ``_PSS`` objects returning information
+that can be used for CPU performance scaling (refer to the `ACPI specification`_
+for details on the ``_PSS`` objects and the format of the information returned
+by them).
+
+The information returned by the ACPI ``_PSS`` objects is used by the
+``acpi-cpufreq`` scaling driver. On systems supported by ``intel_pstate``
+the ``acpi-cpufreq`` driver uses the same hardware CPU performance scaling
+interface, but the set of P-states it can use is limited by the ``_PSS``
+output.
+
+On those systems each ``_PSS`` object returns a list of P-states supported by
+the corresponding CPU which basically is a subset of the P-states range that can
+be used by ``intel_pstate`` on the same system, with one exception: the whole
+`turbo range <turbo_>`_ is represented by one item in it (the topmost one). By
+convention, the frequency returned by ``_PSS`` for that item is greater by 1 MHz
+than the frequency of the highest non-turbo P-state listed by it, but the
+corresponding P-state representation (following the hardware specification)
+returned for it matches the maximum supported turbo P-state (or is the
+special value 255 meaning essentially "go as high as you can get").
+
+The list of P-states returned by ``_PSS`` is reflected by the table of
+available frequencies supplied by ``acpi-cpufreq`` to the ``CPUFreq`` core and
+scaling governors and the minimum and maximum supported frequencies reported by
+it come from that list as well. In particular, given the special representation
+of the turbo range described above, this means that the maximum supported
+frequency reported by ``acpi-cpufreq`` is higher by 1 MHz than the frequency
+of the highest supported non-turbo P-state listed by ``_PSS`` which, of course,
+affects decisions made by the scaling governors, except for ``powersave`` and
+``performance``.
+
+For example, if a given governor attempts to select a frequency proportional to
+estimated CPU load and maps the load of 100% to the maximum supported frequency
+(possibly multiplied by a constant), then it will tend to choose P-states below
+the turbo threshold if ``acpi-cpufreq`` is used as the scaling driver, because
+in that case the turbo range corresponds to a small fraction of the frequency
+band it can use (1 MHz vs 1 GHz or more). In consequence, it will only go to
+the turbo range for the highest loads and the other loads above 50% that might
+benefit from running at turbo frequencies will be given non-turbo P-states
+instead.
+
+One more issue related to that may appear on systems supporting the
+`Configurable TDP feature <turbo_>`_ allowing the platform firmware to set the
+turbo threshold. Namely, if that is not coordinated with the lists of P-states
+returned by ``_PSS`` properly, there may be more than one item corresponding to
+a turbo P-state in those lists and there may be a problem with avoiding the
+turbo range (if desirable or necessary). Usually, to avoid using turbo
+P-states overall, ``acpi-cpufreq`` simply avoids using the topmost state listed
+by ``_PSS``, but that is not sufficient when there are other turbo P-states in
+the list returned by it.
+
+Apart from the above, ``acpi-cpufreq`` works like ``intel_pstate`` in the
+`passive mode <Passive Mode_>`_, except that the number of P-states it can set
+is limited to the ones listed by the ACPI ``_PSS`` objects.
+
+
+Kernel Command Line Options for ``intel_pstate``
+================================================
+
+Several kernel command line options can be used to pass early-configuration-time
+parameters to ``intel_pstate`` in order to enforce specific behavior of it. All
+of them have to be prepended with the ``intel_pstate=`` prefix.
+
+``disable``
+ Do not register ``intel_pstate`` as the scaling driver even if the
+ processor is supported by it.
+
+``passive``
+ Register ``intel_pstate`` in the `passive mode <Passive Mode_>`_ to
+ start with.
+
+ This option implies the ``no_hwp`` one described below.
+
+``force``
+ Register ``intel_pstate`` as the scaling driver instead of
+ ``acpi-cpufreq`` even if the latter is preferred on the given system.
+
+ This may prevent some platform features (such as thermal controls and
+ power capping) that rely on the availability of ACPI P-states
+ information from functioning as expected, so it should be used with
+ caution.
+
+ This option does not work with processors that are not supported by
+ ``intel_pstate`` and on platforms where the ``pcc-cpufreq`` scaling
+ driver is used instead of ``acpi-cpufreq``.
+
+``no_hwp``
+ Do not enable the `hardware-managed P-states (HWP) feature
+ <Active Mode With HWP_>`_ even if it is supported by the processor.
+
+``hwp_only``
+ Register ``intel_pstate`` as the scaling driver only if the
+ `hardware-managed P-states (HWP) feature <Active Mode With HWP_>`_ is
+ supported by the processor.
+
+``support_acpi_ppc``
+ Take ACPI ``_PPC`` performance limits into account.
+
+ If the preferred power management profile in the FADT (Fixed ACPI
+ Description Table) is set to "Enterprise Server" or "Performance
+ Server", the ACPI ``_PPC`` limits are taken into account by default
+ and this option has no effect.
+
+``per_cpu_perf_limits``
+ Use per-logical-CPU P-State limits (see `Coordination of P-state
+ Limits`_ for details).
+
+
+Diagnostics and Tuning
+======================
+
+Trace Events
+------------
+
+There are two static trace events that can be used for ``intel_pstate``
+diagnostics. One of them is the ``cpu_frequency`` trace event generally used
+by ``CPUFreq``, and the other one is the ``pstate_sample`` trace event specific
+to ``intel_pstate``. Both of them are triggered by ``intel_pstate`` only if
+it works in the `active mode <Active Mode_>`_.
+
+The following sequence of shell commands can be used to enable them and see
+their output (if the kernel is generally configured to support event tracing)::
+
+ # cd /sys/kernel/debug/tracing/
+ # echo 1 > events/power/pstate_sample/enable
+ # echo 1 > events/power/cpu_frequency/enable
+ # cat trace
+ gnome-terminal--4510 [001] ..s. 1177.680733: pstate_sample: core_busy=107 scaled=94 from=26 to=26 mperf=1143818 aperf=1230607 tsc=29838618 freq=2474476
+ cat-5235 [002] ..s. 1177.681723: cpu_frequency: state=2900000 cpu_id=2
+
+If ``intel_pstate`` works in the `passive mode <Passive Mode_>`_, the
+``cpu_frequency`` trace event will be triggered either by the ``schedutil``
+scaling governor (for the policies it is attached to), or by the ``CPUFreq``
+core (for the policies with other scaling governors).
+
+``ftrace``
+----------
+
+The ``ftrace`` interface can be used for low-level diagnostics of
+``intel_pstate``. For example, to check how often the function to set a
+P-state is called, the ``ftrace`` filter can be set to to
+:c:func:`intel_pstate_set_pstate`::
+
+ # cd /sys/kernel/debug/tracing/
+ # cat available_filter_functions | grep -i pstate
+ intel_pstate_set_pstate
+ intel_pstate_cpu_init
+ ...
+ # echo intel_pstate_set_pstate > set_ftrace_filter
+ # echo function > current_tracer
+ # cat trace | head -15
+ # tracer: function
+ #
+ # entries-in-buffer/entries-written: 80/80 #P:4
+ #
+ # _-----=> irqs-off
+ # / _----=> need-resched
+ # | / _---=> hardirq/softirq
+ # || / _--=> preempt-depth
+ # ||| / delay
+ # TASK-PID CPU# |||| TIMESTAMP FUNCTION
+ # | | | |||| | |
+ Xorg-3129 [000] ..s. 2537.644844: intel_pstate_set_pstate <-intel_pstate_timer_func
+ gnome-terminal--4510 [002] ..s. 2537.649844: intel_pstate_set_pstate <-intel_pstate_timer_func
+ gnome-shell-3409 [001] ..s. 2537.650850: intel_pstate_set_pstate <-intel_pstate_timer_func
+ <idle>-0 [000] ..s. 2537.654843: intel_pstate_set_pstate <-intel_pstate_timer_func
+
+Tuning Interface in ``debugfs``
+-------------------------------
+
+The ``powersave`` algorithm provided by ``intel_pstate`` for `the Core line of
+processors in the active mode <powersave_>`_ is based on a `PID controller`_
+whose parameters were chosen to address a number of different use cases at the
+same time. However, it still is possible to fine-tune it to a specific workload
+and the ``debugfs`` interface under ``/sys/kernel/debug/pstate_snb/`` is
+provided for this purpose. [Note that the ``pstate_snb`` directory will be
+present only if the specific P-state selection algorithm matching the interface
+in it actually is in use.]
+
+The following files present in that directory can be used to modify the PID
+controller parameters at run time:
+
+| ``deadband``
+| ``d_gain_pct``
+| ``i_gain_pct``
+| ``p_gain_pct``
+| ``sample_rate_ms``
+| ``setpoint``
+
+Note, however, that achieving desirable results this way generally requires
+expert-level understanding of the power vs performance tradeoff, so extra care
+is recommended when attempting to do that.
+
+
+.. _LCEU2015: http://events.linuxfoundation.org/sites/events/files/slides/LinuxConEurope_2015.pdf
+.. _SDM: http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-system-programming-manual-325384.html
+.. _ACPI specification: http://www.uefi.org/sites/default/files/resources/ACPI_6_1.pdf
+.. _PID controller: https://en.wikipedia.org/wiki/PID_controller
diff --git a/Documentation/cpu-freq/intel-pstate.txt b/Documentation/cpu-freq/intel-pstate.txt
deleted file mode 100644
index 3fdcdfd968ba..000000000000
--- a/Documentation/cpu-freq/intel-pstate.txt
+++ /dev/null
@@ -1,281 +0,0 @@
-Intel P-State driver
---------------------
-
-This driver provides an interface to control the P-State selection for the
-SandyBridge+ Intel processors.
-
-The following document explains P-States:
-http://events.linuxfoundation.org/sites/events/files/slides/LinuxConEurope_2015.pdf
-As stated in the document, P-State doesn’t exactly mean a frequency. However, for
-the sake of the relationship with cpufreq, P-State and frequency are used
-interchangeably.
-
-Understanding the cpufreq core governors and policies are important before
-discussing more details about the Intel P-State driver. Based on what callbacks
-a cpufreq driver provides to the cpufreq core, it can support two types of
-drivers:
-- with target_index() callback: In this mode, the drivers using cpufreq core
-simply provide the minimum and maximum frequency limits and an additional
-interface target_index() to set the current frequency. The cpufreq subsystem
-has a number of scaling governors ("performance", "powersave", "ondemand",
-etc.). Depending on which governor is in use, cpufreq core will call for
-transitions to a specific frequency using target_index() callback.
-- setpolicy() callback: In this mode, drivers do not provide target_index()
-callback, so cpufreq core can't request a transition to a specific frequency.
-The driver provides minimum and maximum frequency limits and callbacks to set a
-policy. The policy in cpufreq sysfs is referred to as the "scaling governor".
-The cpufreq core can request the driver to operate in any of the two policies:
-"performance" and "powersave". The driver decides which frequency to use based
-on the above policy selection considering minimum and maximum frequency limits.
-
-The Intel P-State driver falls under the latter category, which implements the
-setpolicy() callback. This driver decides what P-State to use based on the
-requested policy from the cpufreq core. If the processor is capable of
-selecting its next P-State internally, then the driver will offload this
-responsibility to the processor (aka HWP: Hardware P-States). If not, the
-driver implements algorithms to select the next P-State.
-
-Since these policies are implemented in the driver, they are not same as the
-cpufreq scaling governors implementation, even if they have the same name in
-the cpufreq sysfs (scaling_governors). For example the "performance" policy is
-similar to cpufreq’s "performance" governor, but "powersave" is completely
-different than the cpufreq "powersave" governor. The strategy here is similar
-to cpufreq "ondemand", where the requested P-State is related to the system load.
-
-Sysfs Interface
-
-In addition to the frequency-controlling interfaces provided by the cpufreq
-core, the driver provides its own sysfs files to control the P-State selection.
-These files have been added to /sys/devices/system/cpu/intel_pstate/.
-Any changes made to these files are applicable to all CPUs (even in a
-multi-package system, Refer to later section on placing "Per-CPU limits").
-
- max_perf_pct: Limits the maximum P-State that will be requested by
- the driver. It states it as a percentage of the available performance. The
- available (P-State) performance may be reduced by the no_turbo
- setting described below.
-
- min_perf_pct: Limits the minimum P-State that will be requested by
- the driver. It states it as a percentage of the max (non-turbo)
- performance level.
-
- no_turbo: Limits the driver to selecting P-State below the turbo
- frequency range.
-
- turbo_pct: Displays the percentage of the total performance that
- is supported by hardware that is in the turbo range. This number
- is independent of whether turbo has been disabled or not.
-
- num_pstates: Displays the number of P-States that are supported
- by hardware. This number is independent of whether turbo has
- been disabled or not.
-
-For example, if a system has these parameters:
- Max 1 core turbo ratio: 0x21 (Max 1 core ratio is the maximum P-State)
- Max non turbo ratio: 0x17
- Minimum ratio : 0x08 (Here the ratio is called max efficiency ratio)
-
-Sysfs will show :
- max_perf_pct:100, which corresponds to 1 core ratio
- min_perf_pct:24, max_efficiency_ratio / max 1 Core ratio
- no_turbo:0, turbo is not disabled
- num_pstates:26 = (max 1 Core ratio - Max Efficiency Ratio + 1)
- turbo_pct:39 = (max 1 core ratio - max non turbo ratio) / num_pstates
-
-Refer to "Intel® 64 and IA-32 Architectures Software Developer’s Manual
-Volume 3: System Programming Guide" to understand ratios.
-
-There is one more sysfs attribute in /sys/devices/system/cpu/intel_pstate/
-that can be used for controlling the operation mode of the driver:
-
- status: Three settings are possible:
- "off" - The driver is not in use at this time.
- "active" - The driver works as a P-state governor (default).
- "passive" - The driver works as a regular cpufreq one and collaborates
- with the generic cpufreq governors (it sets P-states as
- requested by those governors).
- The current setting is returned by reads from this attribute. Writing one
- of the above strings to it changes the operation mode as indicated by that
- string, if possible. If HW-managed P-states (HWP) are enabled, it is not
- possible to change the driver's operation mode and attempts to write to
- this attribute will fail.
-
-cpufreq sysfs for Intel P-State
-
-Since this driver registers with cpufreq, cpufreq sysfs is also presented.
-There are some important differences, which need to be considered.
-
-scaling_cur_freq: This displays the real frequency which was used during
-the last sample period instead of what is requested. Some other cpufreq driver,
-like acpi-cpufreq, displays what is requested (Some changes are on the
-way to fix this for acpi-cpufreq driver). The same is true for frequencies
-displayed at /proc/cpuinfo.
-
-scaling_governor: This displays current active policy. Since each CPU has a
-cpufreq sysfs, it is possible to set a scaling governor to each CPU. But this
-is not possible with Intel P-States, as there is one common policy for all
-CPUs. Here, the last requested policy will be applicable to all CPUs. It is
-suggested that one use the cpupower utility to change policy to all CPUs at the
-same time.
-
-scaling_setspeed: This attribute can never be used with Intel P-State.
-
-scaling_max_freq/scaling_min_freq: This interface can be used similarly to
-the max_perf_pct/min_perf_pct of Intel P-State sysfs. However since frequencies
-are converted to nearest possible P-State, this is prone to rounding errors.
-This method is not preferred to limit performance.
-
-affected_cpus: Not used
-related_cpus: Not used
-
-For contemporary Intel processors, the frequency is controlled by the
-processor itself and the P-State exposed to software is related to
-performance levels. The idea that frequency can be set to a single
-frequency is fictional for Intel Core processors. Even if the scaling
-driver selects a single P-State, the actual frequency the processor
-will run at is selected by the processor itself.
-
-Per-CPU limits
-
-The kernel command line option "intel_pstate=per_cpu_perf_limits" forces
-the intel_pstate driver to use per-CPU performance limits. When it is set,
-the sysfs control interface described above is subject to limitations.
-- The following controls are not available for both read and write
- /sys/devices/system/cpu/intel_pstate/max_perf_pct
- /sys/devices/system/cpu/intel_pstate/min_perf_pct
-- The following controls can be used to set performance limits, as far as the
-architecture of the processor permits:
- /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq
- /sys/devices/system/cpu/cpu*/cpufreq/scaling_min_freq
- /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
-- User can still observe turbo percent and number of P-States from
- /sys/devices/system/cpu/intel_pstate/turbo_pct
- /sys/devices/system/cpu/intel_pstate/num_pstates
-- User can read write system wide turbo status
- /sys/devices/system/cpu/no_turbo
-
-Support of energy performance hints
-It is possible to provide hints to the HWP algorithms in the processor
-to be more performance centric to more energy centric. When the driver
-is using HWP, two additional cpufreq sysfs attributes are presented for
-each logical CPU.
-These attributes are:
- - energy_performance_available_preferences
- - energy_performance_preference
-
-To get list of supported hints:
-$ cat energy_performance_available_preferences
- default performance balance_performance balance_power power
-
-The current preference can be read or changed via cpufreq sysfs
-attribute "energy_performance_preference". Reading from this attribute
-will display current effective setting. User can write any of the valid
-preference string to this attribute. User can always restore to power-on
-default by writing "default".
-
-Since threads can migrate to different CPUs, this is possible that the
-new CPU may have different energy performance preference than the previous
-one. To avoid such issues, either threads can be pinned to specific CPUs
-or set the same energy performance preference value to all CPUs.
-
-Tuning Intel P-State driver
-
-When the performance can be tuned using PID (Proportional Integral
-Derivative) controller, debugfs files are provided for adjusting performance.
-They are presented under:
-/sys/kernel/debug/pstate_snb/
-
-The PID tunable parameters are:
- deadband
- d_gain_pct
- i_gain_pct
- p_gain_pct
- sample_rate_ms
- setpoint
-
-To adjust these parameters, some understanding of driver implementation is
-necessary. There are some tweeks described here, but be very careful. Adjusting
-them requires expert level understanding of power and performance relationship.
-These limits are only useful when the "powersave" policy is active.
-
--To make the system more responsive to load changes, sample_rate_ms can
-be adjusted (current default is 10ms).
--To make the system use higher performance, even if the load is lower, setpoint
-can be adjusted to a lower number. This will also lead to faster ramp up time
-to reach the maximum P-State.
-If there are no derivative and integral coefficients, The next P-State will be
-equal to:
- current P-State - ((setpoint - current cpu load) * p_gain_pct)
-
-For example, if the current PID parameters are (Which are defaults for the core
-processors like SandyBridge):
- deadband = 0
- d_gain_pct = 0
- i_gain_pct = 0
- p_gain_pct = 20
- sample_rate_ms = 10
- setpoint = 97
-
-If the current P-State = 0x08 and current load = 100, this will result in the
-next P-State = 0x08 - ((97 - 100) * 0.2) = 8.6 (rounded to 9). Here the P-State
-goes up by only 1. If during next sample interval the current load doesn't
-change and still 100, then P-State goes up by one again. This process will
-continue as long as the load is more than the setpoint until the maximum P-State
-is reached.
-
-For the same load at setpoint = 60, this will result in the next P-State
-= 0x08 - ((60 - 100) * 0.2) = 16
-So by changing the setpoint from 97 to 60, there is an increase of the
-next P-State from 9 to 16. So this will make processor execute at higher
-P-State for the same CPU load. If the load continues to be more than the
-setpoint during next sample intervals, then P-State will go up again till the
-maximum P-State is reached. But the ramp up time to reach the maximum P-State
-will be much faster when the setpoint is 60 compared to 97.
-
-Debugging Intel P-State driver
-
-Event tracing
-To debug P-State transition, the Linux event tracing interface can be used.
-There are two specific events, which can be enabled (Provided the kernel
-configs related to event tracing are enabled).
-
-# cd /sys/kernel/debug/tracing/
-# echo 1 > events/power/pstate_sample/enable
-# echo 1 > events/power/cpu_frequency/enable
-# cat trace
-gnome-terminal--4510 [001] ..s. 1177.680733: pstate_sample: core_busy=107
- scaled=94 from=26 to=26 mperf=1143818 aperf=1230607 tsc=29838618
- freq=2474476
-cat-5235 [002] ..s. 1177.681723: cpu_frequency: state=2900000 cpu_id=2
-
-
-Using ftrace
-
-If function level tracing is required, the Linux ftrace interface can be used.
-For example if we want to check how often a function to set a P-State is
-called, we can set ftrace filter to intel_pstate_set_pstate.
-
-# cd /sys/kernel/debug/tracing/
-# cat available_filter_functions | grep -i pstate
-intel_pstate_set_pstate
-intel_pstate_cpu_init
-...
-
-# echo intel_pstate_set_pstate > set_ftrace_filter
-# echo function > current_tracer
-# cat trace | head -15
-# tracer: function
-#
-# entries-in-buffer/entries-written: 80/80 #P:4
-#
-# _-----=> irqs-off
-# / _----=> need-resched
-# | / _---=> hardirq/softirq
-# || / _--=> preempt-depth
-# ||| / delay
-# TASK-PID CPU# |||| TIMESTAMP FUNCTION
-# | | | |||| | |
- Xorg-3129 [000] ..s. 2537.644844: intel_pstate_set_pstate <-intel_pstate_timer_func
- gnome-terminal--4510 [002] ..s. 2537.649844: intel_pstate_set_pstate <-intel_pstate_timer_func
- gnome-shell-3409 [001] ..s. 2537.650850: intel_pstate_set_pstate <-intel_pstate_timer_func
- <idle>-0 [000] ..s. 2537.654843: intel_pstate_set_pstate <-intel_pstate_timer_func
diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index e9c5a1d9834a..f465647a4dd2 100644
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -22,7 +22,8 @@ Required properties :
- #clock-cells : must contain 1
- #reset-cells : must contain 1
-For the PRCM CCUs on H3/A64, one more clock is needed:
+For the PRCM CCUs on H3/A64, two more clocks are needed:
+- "pll-periph": the SoC's peripheral PLL from the main CCU
- "iosc": the SoC's internal frequency oscillator
Example for generic CCU:
@@ -39,8 +40,8 @@ Example for PRCM CCU:
r_ccu: clock@01f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
- clocks = <&osc24M>, <&osc32k>, <&iosc>;
- clock-names = "hosc", "losc", "iosc";
+ clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu CLK_PLL_PERIPH0>;
+ clock-names = "hosc", "losc", "iosc", "pll-periph";
#clock-cells = <1>;
#reset-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
index 42c3bb2d53e8..01e331a5f3e7 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
@@ -41,9 +41,9 @@ Required properties:
Optional properties:
In order to use the GPIO lines in PWM mode, some additional optional
-properties are required. Only Armada 370 and XP support these properties.
+properties are required.
-- compatible: Must contain "marvell,armada-370-xp-gpio"
+- compatible: Must contain "marvell,armada-370-gpio"
- reg: an additional register set is needed, for the GPIO Blink
Counter on/off registers.
@@ -71,7 +71,7 @@ Example:
};
gpio1: gpio@18140 {
- compatible = "marvell,armada-370-xp-gpio";
+ compatible = "marvell,armada-370-gpio";
reg = <0x18140 0x40>, <0x181c8 0x08>;
reg-names = "gpio", "pwm";
ngpios = <17>;
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
index 6db22103e2dd..025cf8c9324a 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
@@ -36,7 +36,7 @@ Optional properties:
control gpios
- threshold: allows setting the "click"-threshold in the range
- from 20 to 80.
+ from 0 to 80.
- gain: allows setting the sensitivity in the range from 0 to
31. Note that lower values indicate higher
diff --git a/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt b/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt
index 05485699d70e..9630ac0e4b56 100644
--- a/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt
+++ b/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt
@@ -16,6 +16,11 @@ Required properties:
- reg: Base address of PMIC on Hi6220 SoC.
- interrupt-controller: Hi655x has internal IRQs (has own IRQ domain).
- pmic-gpios: The GPIO used by PMIC IRQ.
+- #clock-cells: From common clock binding; shall be set to 0
+
+Optional properties:
+- clock-output-names: From common clock binding to override the
+ default output clock name
Example:
pmic: pmic@f8000000 {
@@ -24,4 +29,5 @@ Example:
interrupt-controller;
#interrupt-cells = <2>;
pmic-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ #clock-cells = <0>;
}
diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt
index bbd083f5600a..1db6e0057a63 100644
--- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt
+++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt
@@ -31,7 +31,7 @@ Example:
compatible = "st,stm32-timers";
reg = <0x40010000 0x400>;
clocks = <&rcc 0 160>;
- clock-names = "clk_int";
+ clock-names = "int";
pwm {
compatible = "st,stm32-pwm";
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
index e25436861867..9029b45b8a22 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -18,6 +18,8 @@ Optional properties:
"ext_clock" (External clock provided to the card).
- post-power-on-delay-ms : Delay in ms after powering the card and
de-asserting the reset-gpios (if any)
+- power-off-delay-us : Delay in us after asserting the reset-gpios (if any)
+ during power off of the card.
Example:
diff --git a/Documentation/devicetree/bindings/net/dsa/b53.txt b/Documentation/devicetree/bindings/net/dsa/b53.txt
index d6c6e41648d4..8ec2ca21adeb 100644
--- a/Documentation/devicetree/bindings/net/dsa/b53.txt
+++ b/Documentation/devicetree/bindings/net/dsa/b53.txt
@@ -34,7 +34,7 @@ Required properties:
"brcm,bcm6328-switch"
"brcm,bcm6368-switch" and the mandatory "brcm,bcm63xx-switch"
-See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
+See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
required and optional properties.
Examples:
diff --git a/Documentation/devicetree/bindings/net/dsa/marvell.txt b/Documentation/devicetree/bindings/net/dsa/marvell.txt
index 7ef9dbb08957..1d4d0f49c9d0 100644
--- a/Documentation/devicetree/bindings/net/dsa/marvell.txt
+++ b/Documentation/devicetree/bindings/net/dsa/marvell.txt
@@ -26,6 +26,10 @@ Optional properties:
- interrupt-controller : Indicates the switch is itself an interrupt
controller. This is used for the PHY interrupts.
#interrupt-cells = <2> : Controller uses two cells, number and flag
+- eeprom-length : Set to the length of an EEPROM connected to the
+ switch. Must be set if the switch can not detect
+ the presence and/or size of a connected EEPROM,
+ otherwise optional.
- mdio : Container of PHY and devices on the switches MDIO
bus.
- mdio? : Container of PHYs and devices on the external MDIO
diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt
index a1e3693cca16..6f55bdd52f8a 100644
--- a/Documentation/devicetree/bindings/net/fsl-fec.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fec.txt
@@ -15,6 +15,10 @@ Optional properties:
- phy-reset-active-high : If present then the reset sequence using the GPIO
specified in the "phy-reset-gpios" property is reversed (H=reset state,
L=operation state).
+- phy-reset-post-delay : Post reset delay in milliseconds. If present then
+ a delay of phy-reset-post-delay milliseconds will be observed after the
+ phy-reset-gpios has been toggled. Can be omitted thus no delay is
+ observed. Delay is in range of 1ms to 1000ms. Other delays are invalid.
- phy-supply : regulator that powers the Ethernet PHY.
- phy-handle : phandle to the PHY device connected to this device.
- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
diff --git a/Documentation/devicetree/bindings/net/smsc911x.txt b/Documentation/devicetree/bindings/net/smsc911x.txt
index 16c3a9501f5d..acfafc8e143c 100644
--- a/Documentation/devicetree/bindings/net/smsc911x.txt
+++ b/Documentation/devicetree/bindings/net/smsc911x.txt
@@ -27,6 +27,7 @@ Optional properties:
of the device. On many systems this is wired high so the device goes
out of reset at power-on, but if it is under program control, this
optional GPIO can wake up in response to it.
+- vdd33a-supply, vddvario-supply : 3.3V analog and IO logic power supplies
Examples:
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index 71a3c134af1b..f01d154090da 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -247,7 +247,6 @@ bias-bus-hold - latch weakly
bias-pull-up - pull up the pin
bias-pull-down - pull down the pin
bias-pull-pin-default - use pin-default pull state
-bi-directional - pin supports simultaneous input/output operations
drive-push-pull - drive actively high and low
drive-open-drain - drive with open drain
drive-open-source - drive with open source
@@ -260,7 +259,6 @@ input-debounce - debounce mode with debound time X
power-source - select between different power supplies
low-power-enable - enable low power mode
low-power-disable - disable low power mode
-output-enable - enable output on pin regardless of output value
output-low - set the pin to output mode with low level
output-high - set the pin to output mode with high level
slew-rate - set the slew rate
diff --git a/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt b/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
deleted file mode 100644
index c59e27c632c1..000000000000
--- a/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-Hi6220 SoC ION
-===================================================================
-Required properties:
-- compatible : "hisilicon,hi6220-ion"
-- list of the ION heaps
- - heap name : maybe heap_sys_user@0
- - heap id : id should be unique in the system.
- - heap base : base ddr address of the heap,0 means that
- it is dynamic.
- - heap size : memory size and 0 means it is dynamic.
- - heap type : the heap type of the heap, please also
- see the define in ion.h(drivers/staging/android/uapi/ion.h)
--------------------------------------------------------------------
-Example:
- hi6220-ion {
- compatible = "hisilicon,hi6220-ion";
- heap_sys_user@0 {
- heap-name = "sys_user";
- heap-id = <0x0>;
- heap-base = <0x0>;
- heap-size = <0x0>;
- heap-type = "ion_system";
- };
- heap_sys_contig@0 {
- heap-name = "sys_contig";
- heap-id = <0x1>;
- heap-base = <0x0>;
- heap-size = <0x0>;
- heap-type = "ion_system_contig";
- };
- };
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 00bea038639e..fcf199b64d3d 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -10,6 +10,7 @@ Required properties:
- "rockchip,rk3288-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3288 Soc;
- "lantiq,arx100-usb": The DWC2 USB controller instance in Lantiq ARX SoCs;
- "lantiq,xrx200-usb": The DWC2 USB controller instance in Lantiq XRX SoCs;
+ - "amlogic,meson8-usb": The DWC2 USB controller instance in Amlogic Meson8 SoCs;
- "amlogic,meson8b-usb": The DWC2 USB controller instance in Amlogic Meson8b SoCs;
- "amlogic,meson-gxbb-usb": The DWC2 USB controller instance in Amlogic S905 SoCs;
- "amcc,dwc-otg": The DWC2 USB controller instance in AMCC Canyonlands 460EX SoCs;
diff --git a/Documentation/input/devices/edt-ft5x06.rst b/Documentation/input/devices/edt-ft5x06.rst
index 2032f0b7a8fa..1ccc94b192b7 100644
--- a/Documentation/input/devices/edt-ft5x06.rst
+++ b/Documentation/input/devices/edt-ft5x06.rst
@@ -15,7 +15,7 @@ It has been tested with the following devices:
The driver allows configuration of the touch screen via a set of sysfs files:
/sys/class/input/eventX/device/device/threshold:
- allows setting the "click"-threshold in the range from 20 to 80.
+ allows setting the "click"-threshold in the range from 0 to 80.
/sys/class/input/eventX/device/device/gain:
allows setting the sensitivity in the range from 0 to 31. Note that
diff --git a/Documentation/networking/dpaa.txt b/Documentation/networking/dpaa.txt
new file mode 100644
index 000000000000..76e016d4d344
--- /dev/null
+++ b/Documentation/networking/dpaa.txt
@@ -0,0 +1,194 @@
+The QorIQ DPAA Ethernet Driver
+==============================
+
+Authors:
+Madalin Bucur <madalin.bucur@nxp.com>
+Camelia Groza <camelia.groza@nxp.com>
+
+Contents
+========
+
+ - DPAA Ethernet Overview
+ - DPAA Ethernet Supported SoCs
+ - Configuring DPAA Ethernet in your kernel
+ - DPAA Ethernet Frame Processing
+ - DPAA Ethernet Features
+ - Debugging
+
+DPAA Ethernet Overview
+======================
+
+DPAA stands for Data Path Acceleration Architecture and it is a
+set of networking acceleration IPs that are available on several
+generations of SoCs, both on PowerPC and ARM64.
+
+The Freescale DPAA architecture consists of a series of hardware blocks
+that support Ethernet connectivity. The Ethernet driver depends upon the
+following drivers in the Linux kernel:
+
+ - Peripheral Access Memory Unit (PAMU) (* needed only for PPC platforms)
+ drivers/iommu/fsl_*
+ - Frame Manager (FMan)
+ drivers/net/ethernet/freescale/fman
+ - Queue Manager (QMan), Buffer Manager (BMan)
+ drivers/soc/fsl/qbman
+
+A simplified view of the dpaa_eth interfaces mapped to FMan MACs:
+
+ dpaa_eth /eth0\ ... /ethN\
+ driver | | | |
+ ------------- ---- ----------- ---- -------------
+ -Ports / Tx Rx \ ... / Tx Rx \
+ FMan | | | |
+ -MACs | MAC0 | | MACN |
+ / dtsec0 \ ... / dtsecN \ (or tgec)
+ / \ / \(or memac)
+ --------- -------------- --- -------------- ---------
+ FMan, FMan Port, FMan SP, FMan MURAM drivers
+ ---------------------------------------------------------
+ FMan HW blocks: MURAM, MACs, Ports, SP
+ ---------------------------------------------------------
+
+The dpaa_eth relation to the QMan, BMan and FMan:
+ ________________________________
+ dpaa_eth / eth0 \
+ driver / \
+ --------- -^- -^- -^- --- ---------
+ QMan driver / \ / \ / \ \ / | BMan |
+ |Rx | |Rx | |Tx | |Tx | | driver |
+ --------- |Dfl| |Err| |Cnf| |FQs| | |
+ QMan HW |FQ | |FQ | |FQs| | | | |
+ / \ / \ / \ \ / | |
+ --------- --- --- --- -v- ---------
+ | FMan QMI | |
+ | FMan HW FMan BMI | BMan HW |
+ ----------------------- --------
+
+where the acronyms used above (and in the code) are:
+DPAA = Data Path Acceleration Architecture
+FMan = DPAA Frame Manager
+QMan = DPAA Queue Manager
+BMan = DPAA Buffers Manager
+QMI = QMan interface in FMan
+BMI = BMan interface in FMan
+FMan SP = FMan Storage Profiles
+MURAM = Multi-user RAM in FMan
+FQ = QMan Frame Queue
+Rx Dfl FQ = default reception FQ
+Rx Err FQ = Rx error frames FQ
+Tx Cnf FQ = Tx confirmation FQs
+Tx FQs = transmission frame queues
+dtsec = datapath three speed Ethernet controller (10/100/1000 Mbps)
+tgec = ten gigabit Ethernet controller (10 Gbps)
+memac = multirate Ethernet MAC (10/100/1000/10000)
+
+DPAA Ethernet Supported SoCs
+============================
+
+The DPAA drivers enable the Ethernet controllers present on the following SoCs:
+
+# PPC
+P1023
+P2041
+P3041
+P4080
+P5020
+P5040
+T1023
+T1024
+T1040
+T1042
+T2080
+T4240
+B4860
+
+# ARM
+LS1043A
+LS1046A
+
+Configuring DPAA Ethernet in your kernel
+========================================
+
+To enable the DPAA Ethernet driver, the following Kconfig options are required:
+
+# common for arch/arm64 and arch/powerpc platforms
+CONFIG_FSL_DPAA=y
+CONFIG_FSL_FMAN=y
+CONFIG_FSL_DPAA_ETH=y
+CONFIG_FSL_XGMAC_MDIO=y
+
+# for arch/powerpc only
+CONFIG_FSL_PAMU=y
+
+# common options needed for the PHYs used on the RDBs
+CONFIG_VITESSE_PHY=y
+CONFIG_REALTEK_PHY=y
+CONFIG_AQUANTIA_PHY=y
+
+DPAA Ethernet Frame Processing
+==============================
+
+On Rx, buffers for the incoming frames are retrieved from one of the three
+existing buffers pools. The driver initializes and seeds these, each with
+buffers of different sizes: 1KB, 2KB and 4KB.
+
+On Tx, all transmitted frames are returned to the driver through Tx
+confirmation frame queues. The driver is then responsible for freeing the
+buffers. In order to do this properly, a backpointer is added to the buffer
+before transmission that points to the skb. When the buffer returns to the
+driver on a confirmation FQ, the skb can be correctly consumed.
+
+DPAA Ethernet Features
+======================
+
+Currently the DPAA Ethernet driver enables the basic features required for
+a Linux Ethernet driver. The support for advanced features will be added
+gradually.
+
+The driver has Rx and Tx checksum offloading for UDP and TCP. Currently the Rx
+checksum offload feature is enabled by default and cannot be controlled through
+ethtool.
+
+The driver has support for multiple prioritized Tx traffic classes. Priorities
+range from 0 (lowest) to 3 (highest). These are mapped to HW workqueues with
+strict priority levels. Each traffic class contains NR_CPU TX queues. By
+default, only one traffic class is enabled and the lowest priority Tx queues
+are used. Higher priority traffic classes can be enabled with the mqprio
+qdisc. For example, all four traffic classes are enabled on an interface with
+the following command. Furthermore, skb priority levels are mapped to traffic
+classes as follows:
+
+ * priorities 0 to 3 - traffic class 0 (low priority)
+ * priorities 4 to 7 - traffic class 1 (medium-low priority)
+ * priorities 8 to 11 - traffic class 2 (medium-high priority)
+ * priorities 12 to 15 - traffic class 3 (high priority)
+
+tc qdisc add dev <int> root handle 1: \
+ mqprio num_tc 4 map 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 hw 1
+
+Debugging
+=========
+
+The following statistics are exported for each interface through ethtool:
+
+ - interrupt count per CPU
+ - Rx packets count per CPU
+ - Tx packets count per CPU
+ - Tx confirmed packets count per CPU
+ - Tx S/G frames count per CPU
+ - Tx error count per CPU
+ - Rx error count per CPU
+ - Rx error count per type
+ - congestion related statistics:
+ - congestion status
+ - time spent in congestion
+ - number of time the device entered congestion
+ - dropped packets count per cause
+
+The driver also exports the following information in sysfs:
+
+ - the FQ IDs for each FQ type
+ /sys/devices/platform/dpaa-ethernet.0/net/<int>/fqids
+
+ - the IDs of the buffer pools in use
+ /sys/devices/platform/dpaa-ethernet.0/net/<int>/bpids
diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt
index 59f4db2a0c85..f55639d71d35 100644
--- a/Documentation/networking/scaling.txt
+++ b/Documentation/networking/scaling.txt
@@ -122,7 +122,7 @@ associated flow of the packet. The hash is either provided by hardware
or will be computed in the stack. Capable hardware can pass the hash in
the receive descriptor for the packet; this would usually be the same
hash used for RSS (e.g. computed Toeplitz hash). The hash is saved in
-skb->rx_hash and can be used elsewhere in the stack as a hash of the
+skb->hash and can be used elsewhere in the stack as a hash of the
packet’s flow.
Each receive hardware queue has an associated list of CPUs to which
diff --git a/Documentation/networking/tcp.txt b/Documentation/networking/tcp.txt
index bdc4c0db51e1..9c7139d57e57 100644
--- a/Documentation/networking/tcp.txt
+++ b/Documentation/networking/tcp.txt
@@ -1,7 +1,7 @@
TCP protocol
============
-Last updated: 9 February 2008
+Last updated: 3 June 2017
Contents
========
@@ -29,18 +29,19 @@ As of 2.6.13, Linux supports pluggable congestion control algorithms.
A congestion control mechanism can be registered through functions in
tcp_cong.c. The functions used by the congestion control mechanism are
registered via passing a tcp_congestion_ops struct to
-tcp_register_congestion_control. As a minimum name, ssthresh,
-cong_avoid must be valid.
+tcp_register_congestion_control. As a minimum, the congestion control
+mechanism must provide a valid name and must implement either ssthresh,
+cong_avoid and undo_cwnd hooks or the "omnipotent" cong_control hook.
Private data for a congestion control mechanism is stored in tp->ca_priv.
tcp_ca(tp) returns a pointer to this space. This is preallocated space - it
is important to check the size of your private data will fit this space, or
-alternatively space could be allocated elsewhere and a pointer to it could
+alternatively, space could be allocated elsewhere and a pointer to it could
be stored here.
There are three kinds of congestion control algorithms currently: The
simplest ones are derived from TCP reno (highspeed, scalable) and just
-provide an alternative the congestion window calculation. More complex
+provide an alternative congestion window calculation. More complex
ones like BIC try to look at other events to provide better
heuristics. There are also round trip time based algorithms like
Vegas and Westwood+.
@@ -49,21 +50,15 @@ Good TCP congestion control is a complex problem because the algorithm
needs to maintain fairness and performance. Please review current
research and RFC's before developing new modules.
-The method that is used to determine which congestion control mechanism is
-determined by the setting of the sysctl net.ipv4.tcp_congestion_control.
-The default congestion control will be the last one registered (LIFO);
-so if you built everything as modules, the default will be reno. If you
-build with the defaults from Kconfig, then CUBIC will be builtin (not a
-module) and it will end up the default.
+The default congestion control mechanism is chosen based on the
+DEFAULT_TCP_CONG Kconfig parameter. If you really want a particular default
+value then you can set it using sysctl net.ipv4.tcp_congestion_control. The
+module will be autoloaded if needed and you will get the expected protocol. If
+you ask for an unknown congestion method, then the sysctl attempt will fail.
-If you really want a particular default value then you will need
-to set it with the sysctl. If you use a sysctl, the module will be autoloaded
-if needed and you will get the expected protocol. If you ask for an
-unknown congestion method, then the sysctl attempt will fail.
-
-If you remove a tcp congestion control module, then you will get the next
+If you remove a TCP congestion control module, then you will get the next
available one. Since reno cannot be built as a module, and cannot be
-deleted, it will always be available.
+removed, it will always be available.
How the new TCP output machine [nyi] works.
===========================================
diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst
index 5338673c88d9..773d2bfacc6c 100644
--- a/Documentation/sound/hd-audio/models.rst
+++ b/Documentation/sound/hd-audio/models.rst
@@ -16,6 +16,8 @@ ALC880
6-jack in back, 2-jack in front
6stack-digout
6-jack with a SPDIF out
+6stack-automute
+ 6-jack with headphone jack detection
ALC260
======
@@ -62,6 +64,8 @@ lenovo-dock
Enables docking station I/O for some Lenovos
hp-gpio-led
GPIO LED support on HP laptops
+hp-dock-gpio-mic1-led
+ HP dock with mic LED support
dell-headset-multi
Headset jack, which can also be used as mic-in
dell-headset-dock
@@ -72,6 +76,12 @@ alc283-sense-combo
Combo jack sensing on ALC283
tpt440-dock
Pin configs for Lenovo Thinkpad Dock support
+tpt440
+ Lenovo Thinkpad T440s setup
+tpt460
+ Lenovo Thinkpad T460/560 setup
+dual-codecs
+ Lenovo laptops with dual codecs
ALC66x/67x/892
==============
@@ -97,6 +107,8 @@ inv-dmic
Inverted internal mic workaround
dell-headset-multi
Headset jack, which can also be used as mic-in
+dual-codecs
+ Lenovo laptops with dual codecs
ALC680
======
@@ -114,6 +126,8 @@ inv-dmic
Inverted internal mic workaround
no-primary-hp
VAIO Z/VGC-LN51JGB workaround (for fixed speaker DAC)
+dual-codecs
+ ALC1220 dual codecs for Gaming mobos
ALC861/660
==========
@@ -206,65 +220,47 @@ auto
Conexant 5045
=============
-laptop-hpsense
- Laptop with HP sense (old model laptop)
-laptop-micsense
- Laptop with Mic sense (old model fujitsu)
-laptop-hpmicsense
- Laptop with HP and Mic senses
-benq
- Benq R55E
-laptop-hp530
- HP 530 laptop
-test
- for testing/debugging purpose, almost all controls can be
- adjusted. Appearing only when compiled with $CONFIG_SND_DEBUG=y
+cap-mix-amp
+ Fix max input level on mixer widget
+toshiba-p105
+ Toshiba P105 quirk
+hp-530
+ HP 530 quirk
Conexant 5047
=============
-laptop
- Basic Laptop config
-laptop-hp
- Laptop config for some HP models (subdevice 30A5)
-laptop-eapd
- Laptop config with EAPD support
-test
- for testing/debugging purpose, almost all controls can be
- adjusted. Appearing only when compiled with $CONFIG_SND_DEBUG=y
+cap-mix-amp
+ Fix max input level on mixer widget
Conexant 5051
=============
-laptop
- Basic Laptop config (default)
-hp
- HP Spartan laptop
-hp-dv6736
- HP dv6736
-hp-f700
- HP Compaq Presario F700
-ideapad
- Lenovo IdeaPad laptop
-toshiba
- Toshiba Satellite M300
+lenovo-x200
+ Lenovo X200 quirk
Conexant 5066
=============
-laptop
- Basic Laptop config (default)
-hp-laptop
- HP laptops, e g G60
-asus
- Asus K52JU, Lenovo G560
-dell-laptop
- Dell laptops
-dell-vostro
- Dell Vostro
-olpc-xo-1_5
- OLPC XO 1.5
-ideapad
- Lenovo IdeaPad U150
+stereo-dmic
+ Workaround for inverted stereo digital mic
+gpio1
+ Enable GPIO1 pin
+headphone-mic-pin
+ Enable headphone mic NID 0x18 without detection
+tp410
+ Thinkpad T400 & co quirks
thinkpad
- Lenovo Thinkpad
+ Thinkpad mute/mic LED quirk
+lemote-a1004
+ Lemote A1004 quirk
+lemote-a1205
+ Lemote A1205 quirk
+olpc-xo
+ OLPC XO quirk
+mute-led-eapd
+ Mute LED control via EAPD
+hp-dock
+ HP dock support
+mute-led-gpio
+ Mute LED control via GPIO
STAC9200
========
@@ -444,6 +440,8 @@ dell-eq
Dell desktops/laptops
alienware
Alienware M17x
+asus-mobo
+ Pin configs for ASUS mobo with 5.1/SPDIF out
auto
BIOS setup (default)
@@ -477,6 +475,8 @@ hp-envy-ts-bass
Pin fixup for HP Envy TS bass speaker (NID 0x10)
hp-bnb13-eq
Hardware equalizer setup for HP laptops
+hp-envy-ts-bass
+ HP Envy TS bass support
auto
BIOS setup (default)
@@ -496,10 +496,22 @@ auto
Cirrus Logic CS4206/4207
========================
+mbp53
+ MacBook Pro 5,3
mbp55
MacBook Pro 5,5
imac27
IMac 27 Inch
+imac27_122
+ iMac 12,2
+apple
+ Generic Apple quirk
+mbp101
+ MacBookPro 10,1
+mbp81
+ MacBookPro 8,1
+mba42
+ MacBookAir 4,2
auto
BIOS setup (default)
@@ -509,6 +521,10 @@ mba6
MacBook Air 6,1 and 6,2
gpio0
Enable GPIO 0 amp
+mbp11
+ MacBookPro 11,2
+macmini
+ MacMini 7,1
auto
BIOS setup (default)
diff --git a/Documentation/usb/typec.rst b/Documentation/usb/typec.rst
index b67a46779de9..8a7249f2ff04 100644
--- a/Documentation/usb/typec.rst
+++ b/Documentation/usb/typec.rst
@@ -114,8 +114,7 @@ the details during registration. The class offers the following API for
registering/unregistering cables and their plugs:
.. kernel-doc:: drivers/usb/typec/typec.c
- :functions: typec_register_cable typec_unregister_cable typec_register_plug
- typec_unregister_plug
+ :functions: typec_register_cable typec_unregister_cable typec_register_plug typec_unregister_plug
The class will provide a handle to struct typec_cable and struct typec_plug if
the registration is successful, or NULL if it isn't.
@@ -137,8 +136,7 @@ during connection of a partner or cable, the port driver must use the following
APIs to report it to the class:
.. kernel-doc:: drivers/usb/typec/typec.c
- :functions: typec_set_data_role typec_set_pwr_role typec_set_vconn_role
- typec_set_pwr_opmode
+ :functions: typec_set_data_role typec_set_pwr_role typec_set_vconn_role typec_set_pwr_opmode
Alternate Modes
~~~~~~~~~~~~~~~
diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt
index 4f7d86dd0a5d..914518aeb972 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -117,7 +117,7 @@ nowayout: Watchdog cannot be stopped once started
-------------------------------------------------
iTCO_wdt:
heartbeat: Watchdog heartbeat in seconds.
- (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
+ (5<=heartbeat<=74 (TCO v1) or 1226 (TCO v2), default=30)
nowayout: Watchdog cannot be stopped once started
(default=kernel config parameter)
-------------------------------------------------
diff --git a/MAINTAINERS b/MAINTAINERS
index f7d568b8f133..09b5ab6a8a5c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -846,7 +846,6 @@ M: Laura Abbott <labbott@redhat.com>
M: Sumit Semwal <sumit.semwal@linaro.org>
L: devel@driverdev.osuosl.org
S: Supported
-F: Documentation/devicetree/bindings/staging/ion/
F: drivers/staging/android/ion
F: drivers/staging/android/uapi/ion.h
F: drivers/staging/android/uapi/ion_test.h
@@ -1173,7 +1172,7 @@ N: clps711x
ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
M: Hartley Sweeten <hsweeten@visionengravers.com>
-M: Ryan Mallon <rmallon@gmail.com>
+M: Alexander Sverdlin <alexander.sverdlin@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-ep93xx/
@@ -1490,13 +1489,15 @@ M: Gregory Clement <gregory.clement@free-electrons.com>
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: arch/arm/mach-mvebu/
-F: drivers/rtc/rtc-armada38x.c
F: arch/arm/boot/dts/armada*
F: arch/arm/boot/dts/kirkwood*
+F: arch/arm/configs/mvebu_*_defconfig
+F: arch/arm/mach-mvebu/
F: arch/arm64/boot/dts/marvell/armada*
F: drivers/cpufreq/mvebu-cpufreq.c
-F: arch/arm/configs/mvebu_*_defconfig
+F: drivers/irqchip/irq-armada-370-xp.c
+F: drivers/irqchip/irq-mvebu-*
+F: drivers/rtc/rtc-armada38x.c
ARM/Marvell Berlin SoC support
M: Jisheng Zhang <jszhang@marvell.com>
@@ -1722,7 +1723,6 @@ N: rockchip
ARM/SAMSUNG EXYNOS ARM ARCHITECTURES
M: Kukjin Kim <kgene@kernel.org>
M: Krzysztof Kozlowski <krzk@kernel.org>
-R: Javier Martinez Canillas <javier@osg.samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
Q: https://patchwork.kernel.org/project/linux-samsung-soc/list/
@@ -1830,7 +1830,6 @@ F: drivers/edac/altera_edac.
ARM/STI ARCHITECTURE
M: Patrice Chotard <patrice.chotard@st.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L: kernel@stlinux.com
W: http://www.stlinux.com
S: Maintained
F: arch/arm/mach-sti/
@@ -3116,6 +3115,14 @@ F: drivers/net/ieee802154/cc2520.c
F: include/linux/spi/cc2520.h
F: Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
+CCREE ARM TRUSTZONE CRYPTOCELL 700 REE DRIVER
+M: Gilad Ben-Yossef <gilad@benyossef.com>
+L: linux-crypto@vger.kernel.org
+L: driverdev-devel@linuxdriverproject.org
+S: Supported
+F: drivers/staging/ccree/
+W: https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family
+
CEC FRAMEWORK
M: Hans Verkuil <hans.verkuil@cisco.com>
L: linux-media@vger.kernel.org
@@ -5615,7 +5622,7 @@ F: scripts/get_maintainer.pl
GENWQE (IBM Generic Workqueue Card)
M: Frank Haverkamp <haver@linux.vnet.ibm.com>
-M: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
+M: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
S: Supported
F: drivers/misc/genwqe/
@@ -5660,7 +5667,6 @@ F: tools/testing/selftests/gpio/
GPIO SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
-M: Alexandre Courbot <gnurou@gmail.com>
L: linux-gpio@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
S: Maintained
@@ -5695,7 +5701,7 @@ M: Alex Elder <elder@kernel.org>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Maintained
F: drivers/staging/greybus/
-L: greybus-dev@lists.linaro.org
+L: greybus-dev@lists.linaro.org (moderated for non-subscribers)
GREYBUS AUDIO PROTOCOLS DRIVERS
M: Vaibhav Agarwal <vaibhav.sr@gmail.com>
@@ -7136,7 +7142,7 @@ S: Maintained
F: drivers/media/platform/rcar_jpu.c
JSM Neo PCI based serial card
-M: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
+M: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
L: linux-serial@vger.kernel.org
S: Maintained
F: drivers/tty/serial/jsm/
@@ -7700,7 +7706,7 @@ F: drivers/platform/x86/hp_accel.c
LIVE PATCHING
M: Josh Poimboeuf <jpoimboe@redhat.com>
-M: Jessica Yu <jeyu@redhat.com>
+M: Jessica Yu <jeyu@kernel.org>
M: Jiri Kosina <jikos@kernel.org>
M: Miroslav Benes <mbenes@suse.cz>
R: Petr Mladek <pmladek@suse.com>
@@ -8501,7 +8507,7 @@ S: Odd Fixes
F: drivers/media/radio/radio-miropcm20*
MELLANOX MLX4 core VPI driver
-M: Yishai Hadas <yishaih@mellanox.com>
+M: Tariq Toukan <tariqt@mellanox.com>
L: netdev@vger.kernel.org
L: linux-rdma@vger.kernel.org
W: http://www.mellanox.com
@@ -8509,7 +8515,6 @@ Q: http://patchwork.ozlabs.org/project/netdev/list/
S: Supported
F: drivers/net/ethernet/mellanox/mlx4/
F: include/linux/mlx4/
-F: include/uapi/rdma/mlx4-abi.h
MELLANOX MLX4 IB driver
M: Yishai Hadas <yishaih@mellanox.com>
@@ -8519,6 +8524,7 @@ Q: http://patchwork.kernel.org/project/linux-rdma/list/
S: Supported
F: drivers/infiniband/hw/mlx4/
F: include/linux/mlx4/
+F: include/uapi/rdma/mlx4-abi.h
MELLANOX MLX5 core VPI driver
M: Saeed Mahameed <saeedm@mellanox.com>
@@ -8531,7 +8537,6 @@ Q: http://patchwork.ozlabs.org/project/netdev/list/
S: Supported
F: drivers/net/ethernet/mellanox/mlx5/core/
F: include/linux/mlx5/
-F: include/uapi/rdma/mlx5-abi.h
MELLANOX MLX5 IB driver
M: Matan Barak <matanb@mellanox.com>
@@ -8542,6 +8547,7 @@ Q: http://patchwork.kernel.org/project/linux-rdma/list/
S: Supported
F: drivers/infiniband/hw/mlx5/
F: include/linux/mlx5/
+F: include/uapi/rdma/mlx5-abi.h
MELEXIS MLX90614 DRIVER
M: Crt Mori <cmo@melexis.com>
@@ -8581,7 +8587,7 @@ S: Maintained
F: drivers/media/dvb-frontends/mn88473*
MODULE SUPPORT
-M: Jessica Yu <jeyu@redhat.com>
+M: Jessica Yu <jeyu@kernel.org>
M: Rusty Russell <rusty@rustcorp.com.au>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux.git modules-next
S: Maintained
@@ -9553,10 +9559,6 @@ F: drivers/net/wireless/intersil/orinoco/
OSD LIBRARY and FILESYSTEM
M: Boaz Harrosh <ooo@electrozaur.com>
-M: Benny Halevy <bhalevy@primarydata.com>
-L: osd-dev@open-osd.org
-W: http://open-osd.org
-T: git git://git.open-osd.org/open-osd.git
S: Maintained
F: drivers/scsi/osd/
F: include/scsi/osd_*
@@ -10447,7 +10449,7 @@ S: Orphan
PXA RTC DRIVER
M: Robert Jarzmik <robert.jarzmik@free.fr>
-L: rtc-linux@googlegroups.com
+L: linux-rtc@vger.kernel.org
S: Maintained
QAT DRIVER
@@ -10754,7 +10756,7 @@ X: kernel/torture.c
REAL TIME CLOCK (RTC) SUBSYSTEM
M: Alessandro Zummo <a.zummo@towertech.it>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
-L: rtc-linux@googlegroups.com
+L: linux-rtc@vger.kernel.org
Q: http://patchwork.ozlabs.org/project/rtc-linux/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git
S: Maintained
@@ -11265,7 +11267,6 @@ F: drivers/media/rc/serial_ir.c
STI CEC DRIVER
M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
-L: kernel@stlinux.com
S: Maintained
F: drivers/staging/media/st-cec/
F: Documentation/devicetree/bindings/media/stih-cec.txt
@@ -11775,6 +11776,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
S: Supported
F: arch/arm/mach-davinci/
F: drivers/i2c/busses/i2c-davinci.c
+F: arch/arm/boot/dts/da850*
TI DAVINCI SERIES MEDIA DRIVER
M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
@@ -13858,7 +13860,7 @@ S: Odd fixes
F: drivers/net/wireless/wl3501*
WOLFSON MICROELECTRONICS DRIVERS
-L: patches@opensource.wolfsonmicro.com
+L: patches@opensource.cirrus.com
T: git https://github.com/CirrusLogic/linux-drivers.git
W: https://github.com/CirrusLogic/linux-drivers/wiki
S: Supported
diff --git a/Makefile b/Makefile
index b400c0604fac..57df7569c1bf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 12
SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc6
NAME = Fearless Coyote
# *DOCUMENTATION*
@@ -1172,7 +1172,7 @@ headers_check_all: headers_install_all
PHONY += headers_check
headers_check: headers_install
$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
- $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/ $(hdr-dst) HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
# ---------------------------------------------------------------------------
# Kernel selftest
@@ -1437,7 +1437,7 @@ help:
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
@echo ' make V=2 [targets] 2 => give reason for rebuild of target'
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
- @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
+ @echo ' make C=1 [targets] Check re-compiled c source with $$CHECK (sparse by default)'
@echo ' make C=2 [targets] Force check of all c source with $$CHECK'
@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9ec56dc97374..ce93124a850b 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1201,8 +1201,10 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
return -EFAULT;
- err = 0;
- err |= put_user(status, ustatus);
+ err = put_user(status, ustatus);
+ if (ret < 0)
+ return err ? err : ret;
+
err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c
index 3e25e8d6486b..2e13683dfb24 100644
--- a/arch/arc/mm/mmap.c
+++ b/arch/arc/mm/mmap.c
@@ -65,7 +65,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
+ (!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index 9d5dc4fda3c1..3f7d1b74c5e0 100644
--- a/arch/arm/boot/compressed/efi-header.S
+++ b/arch/arm/boot/compressed/efi-header.S
@@ -17,14 +17,12 @@
@ there.
.inst 'M' | ('Z' << 8) | (0x1310 << 16) @ tstne r0, #0x4d000
#else
- mov r0, r0
+ W(mov) r0, r0
#endif
.endm
.macro __EFI_HEADER
#ifdef CONFIG_EFI_STUB
- b __efi_start
-
.set start_offset, __efi_start - start
.org start + 0x3c
@
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 7c711ba61417..8a756870c238 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -130,19 +130,22 @@ start:
.rept 7
__nop
.endr
- ARM( mov r0, r0 )
- ARM( b 1f )
- THUMB( badr r12, 1f )
- THUMB( bx r12 )
+#ifndef CONFIG_THUMB2_KERNEL
+ mov r0, r0
+#else
+ AR_CLASS( sub pc, pc, #3 ) @ A/R: switch to Thumb2 mode
+ M_CLASS( nop.w ) @ M: already in Thumb2 mode
+ .thumb
+#endif
+ W(b) 1f
.word _magic_sig @ Magic numbers to help the loader
.word _magic_start @ absolute load/run zImage address
.word _magic_end @ zImage end address
.word 0x04030201 @ endianness flag
- THUMB( .thumb )
-1: __EFI_HEADER
-
+ __EFI_HEADER
+1:
ARM_BE8( setend be ) @ go BE8 if compiled for BE8
AR_CLASS( mrs r9, cpsr )
#ifdef CONFIG_ARM_VIRT_EXT
diff --git a/arch/arm/boot/dts/am335x-sl50.dts b/arch/arm/boot/dts/am335x-sl50.dts
index c5d2589c55fc..fc864a855991 100644
--- a/arch/arm/boot/dts/am335x-sl50.dts
+++ b/arch/arm/boot/dts/am335x-sl50.dts
@@ -220,7 +220,7 @@
mmc1_pins: pinmux_mmc1_pins {
pinctrl-single,pins = <
- AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /* spi0_cs1.gpio0_6 */
+ AM33XX_IOPAD(0x96c, PIN_INPUT | MUX_MODE7) /* uart0_rtsn.gpio1_9 */
>;
};
@@ -280,10 +280,6 @@
AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE7) /* nKbdReset - gpmc_ad13.gpio1_13 */
AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE7) /* nDispReset - gpmc_ad14.gpio1_14 */
AM33XX_IOPAD(0x844, PIN_INPUT_PULLUP | MUX_MODE7) /* USB1_enPower - gpmc_a1.gpio1_17 */
- /* AVR Programming - SPI Bus (bit bang) - Screen and Keyboard */
- AM33XX_IOPAD(0x954, PIN_INPUT_PULLUP | MUX_MODE7) /* Kbd/Disp/BattMOSI spi0_d0.gpio0_3 */
- AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE7) /* Kbd/Disp/BattMISO spi0_d1.gpio0_4 */
- AM33XX_IOPAD(0x950, PIN_INPUT_PULLUP | MUX_MODE7) /* Kbd/Disp/BattSCLK spi0_clk.gpio0_2 */
/* PDI Bus - Battery system */
AM33XX_IOPAD(0x840, PIN_INPUT_PULLUP | MUX_MODE7) /* nBattReset gpmc_a0.gpio1_16 */
AM33XX_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE7) /* BattPDIData gpmc_ad15.gpio1_15 */
@@ -384,7 +380,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
bus-width = <4>;
- cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+ cd-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
vmmc-supply = <&vmmcsd_fixed>;
};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
index 12c981e51134..9a0599f711ff 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
@@ -1,6 +1,6 @@
/ {
aliases {
- ethernet = &ethernet;
+ ethernet0 = &ethernet;
};
};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi b/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
index 3f0a56ebcf1f..dc7ae776db5f 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
@@ -1,6 +1,6 @@
/ {
aliases {
- ethernet = &ethernet;
+ ethernet0 = &ethernet;
};
};
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 35cea3fcaf5c..9444a9a9ba10 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -3,6 +3,11 @@
#include <dt-bindings/clock/bcm2835-aux.h>
#include <dt-bindings/gpio/gpio.h>
+/* firmware-provided startup stubs live here, where the secondary CPUs are
+ * spinning.
+ */
+/memreserve/ 0x00000000 0x00001000;
+
/* This include file covers the common peripherals and configuration between
* bcm2835 and bcm2836 implementations, leaving the CPU configuration to
* bcm2835.dtsi and bcm2836.dtsi.
@@ -198,8 +203,8 @@
brcm,pins = <0 1>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
- i2c0_gpio32: i2c0_gpio32 {
- brcm,pins = <32 34>;
+ i2c0_gpio28: i2c0_gpio28 {
+ brcm,pins = <28 29>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
i2c0_gpio44: i2c0_gpio44 {
@@ -295,20 +300,28 @@
/* Separate from the uart0_gpio14 group
* because it conflicts with spi1_gpio16, and
* people often run uart0 on the two pins
- * without flow contrl.
+ * without flow control.
*/
uart0_ctsrts_gpio16: uart0_ctsrts_gpio16 {
brcm,pins = <16 17>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
- uart0_gpio30: uart0_gpio30 {
+ uart0_ctsrts_gpio30: uart0_ctsrts_gpio30 {
brcm,pins = <30 31>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
- uart0_ctsrts_gpio32: uart0_ctsrts_gpio32 {
+ uart0_gpio32: uart0_gpio32 {
brcm,pins = <32 33>;
brcm,function = <BCM2835_FSEL_ALT3>;
};
+ uart0_gpio36: uart0_gpio36 {
+ brcm,pins = <36 37>;
+ brcm,function = <BCM2835_FSEL_ALT2>;
+ };
+ uart0_ctsrts_gpio38: uart0_ctsrts_gpio38 {
+ brcm,pins = <38 39>;
+ brcm,function = <BCM2835_FSEL_ALT2>;
+ };
uart1_gpio14: uart1_gpio14 {
brcm,pins = <14 15>;
@@ -326,10 +339,6 @@
brcm,pins = <30 31>;
brcm,function = <BCM2835_FSEL_ALT5>;
};
- uart1_gpio36: uart1_gpio36 {
- brcm,pins = <36 37 38 39>;
- brcm,function = <BCM2835_FSEL_ALT2>;
- };
uart1_gpio40: uart1_gpio40 {
brcm,pins = <40 41>;
brcm,function = <BCM2835_FSEL_ALT5>;
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 4bc4b575c99b..31a9e061ddd0 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -204,6 +204,8 @@
tps659038: tps659038@58 {
compatible = "ti,tps659038";
reg = <0x58>;
+ ti,palmas-override-powerhold;
+ ti,system-power-controller;
tps659038_pmic {
compatible = "ti,tps659038-pmic";
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 57892f264cea..e7144662af45 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -2017,4 +2017,8 @@
coefficients = <0 2000>;
};
+&cpu_crit {
+ temperature = <120000>; /* milli Celsius */
+};
+
/include/ "dra7xx-clocks.dtsi"
diff --git a/arch/arm/boot/dts/imx53-qsrb.dts b/arch/arm/boot/dts/imx53-qsrb.dts
index de2215832372..4e103a905dc9 100644
--- a/arch/arm/boot/dts/imx53-qsrb.dts
+++ b/arch/arm/boot/dts/imx53-qsrb.dts
@@ -23,7 +23,7 @@
imx53-qsrb {
pinctrl_pmic: pmicgrp {
fsl,pins = <
- MX53_PAD_CSI0_DAT5__GPIO5_23 0x1e4 /* IRQ */
+ MX53_PAD_CSI0_DAT5__GPIO5_23 0x1c4 /* IRQ */
>;
};
};
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index 5bb8fd57e7f5..d71da30c9cff 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -12,23 +12,6 @@
model = "Freescale i.MX6 SoloX SDB RevB Board";
};
-&cpu0 {
- operating-points = <
- /* kHz uV */
- 996000 1250000
- 792000 1175000
- 396000 1175000
- 198000 1175000
- >;
- fsl,soc-operating-points = <
- /* ARM kHz SOC uV */
- 996000 1250000
- 792000 1175000
- 396000 1175000
- 198000 1175000
- >;
-};
-
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dts b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
index f18e1f1d0ce2..d2be8aa3370b 100644
--- a/arch/arm/boot/dts/imx6ul-14x14-evk.dts
+++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
@@ -120,10 +120,16 @@
ethphy0: ethernet-phy@2 {
reg = <2>;
+ micrel,led-mode = <1>;
+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
+ clock-names = "rmii-ref";
};
ethphy1: ethernet-phy@1 {
reg = <1>;
+ micrel,led-mode = <1>;
+ clocks = <&clks IMX6UL_CLK_ENET2_REF>;
+ clock-names = "rmii-ref";
};
};
};
diff --git a/arch/arm/boot/dts/include/arm b/arch/arm/boot/dts/include/arm
deleted file mode 120000
index a96aa0ea9d8c..000000000000
--- a/arch/arm/boot/dts/include/arm
+++ /dev/null
@@ -1 +0,0 @@
-.. \ No newline at end of file
diff --git a/arch/arm/boot/dts/include/arm64 b/arch/arm/boot/dts/include/arm64
deleted file mode 120000
index 074a835fca3e..000000000000
--- a/arch/arm/boot/dts/include/arm64
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm64/boot/dts \ No newline at end of file
diff --git a/arch/arm/boot/dts/include/dt-bindings b/arch/arm/boot/dts/include/dt-bindings
deleted file mode 120000
index 08c00e4972fa..000000000000
--- a/arch/arm/boot/dts/include/dt-bindings
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../include/dt-bindings \ No newline at end of file
diff --git a/arch/arm/boot/dts/keystone-k2l-netcp.dtsi b/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
index b6f26824e83a..66f615a74118 100644
--- a/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
@@ -137,8 +137,8 @@ netcp: netcp@26000000 {
/* NetCP address range */
ranges = <0 0x26000000 0x1000000>;
- clocks = <&clkpa>, <&clkcpgmac>, <&chipclk12>, <&clkosr>;
- clock-names = "pa_clk", "ethss_clk", "cpts", "osr_clk";
+ clocks = <&clkpa>, <&clkcpgmac>, <&chipclk12>;
+ clock-names = "pa_clk", "ethss_clk", "cpts";
dma-coherent;
ti,navigator-dmas = <&dma_gbe 0>,
diff --git a/arch/arm/boot/dts/keystone-k2l.dtsi b/arch/arm/boot/dts/keystone-k2l.dtsi
index b58e7ebc0919..148650406cf7 100644
--- a/arch/arm/boot/dts/keystone-k2l.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l.dtsi
@@ -232,6 +232,14 @@
};
};
+ osr: sram@70000000 {
+ compatible = "mmio-sram";
+ reg = <0x70000000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ clocks = <&clkosr>;
+ };
+
dspgpio0: keystone_dsp_gpio@02620240 {
compatible = "ti,keystone-dsp-gpio";
gpio-controller;
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index 08cce17a25a0..43e9364083de 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -249,9 +249,9 @@
OMAP3_CORE1_IOPAD(0x2110, PIN_INPUT | MUX_MODE0) /* cam_xclka.cam_xclka */
OMAP3_CORE1_IOPAD(0x2112, PIN_INPUT | MUX_MODE0) /* cam_pclk.cam_pclk */
- OMAP3_CORE1_IOPAD(0x2114, PIN_INPUT | MUX_MODE0) /* cam_d0.cam_d0 */
- OMAP3_CORE1_IOPAD(0x2116, PIN_INPUT | MUX_MODE0) /* cam_d1.cam_d1 */
- OMAP3_CORE1_IOPAD(0x2118, PIN_INPUT | MUX_MODE0) /* cam_d2.cam_d2 */
+ OMAP3_CORE1_IOPAD(0x2116, PIN_INPUT | MUX_MODE0) /* cam_d0.cam_d0 */
+ OMAP3_CORE1_IOPAD(0x2118, PIN_INPUT | MUX_MODE0) /* cam_d1.cam_d1 */
+ OMAP3_CORE1_IOPAD(0x211a, PIN_INPUT | MUX_MODE0) /* cam_d2.cam_d2 */
OMAP3_CORE1_IOPAD(0x211c, PIN_INPUT | MUX_MODE0) /* cam_d3.cam_d3 */
OMAP3_CORE1_IOPAD(0x211e, PIN_INPUT | MUX_MODE0) /* cam_d4.cam_d4 */
OMAP3_CORE1_IOPAD(0x2120, PIN_INPUT | MUX_MODE0) /* cam_d5.cam_d5 */
diff --git a/arch/arm/boot/dts/mt7623.dtsi b/arch/arm/boot/dts/mt7623.dtsi
index 402579ab70d2..3a9e9b6aea68 100644
--- a/arch/arm/boot/dts/mt7623.dtsi
+++ b/arch/arm/boot/dts/mt7623.dtsi
@@ -72,6 +72,8 @@
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ clock-frequency = <13000000>;
+ arm,cpu-registers-not-fw-configured;
};
watchdog: watchdog@10007000 {
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index b3a8b1f24499..9ec737069369 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -55,7 +55,8 @@
simple-audio-card,bitclock-master = <&telephony_link_master>;
simple-audio-card,frame-master = <&telephony_link_master>;
simple-audio-card,format = "i2s";
-
+ simple-audio-card,bitclock-inversion;
+ simple-audio-card,frame-inversion;
simple-audio-card,cpu {
sound-dai = <&mcbsp4>;
};
diff --git a/arch/arm/boot/dts/omap4-panda-a4.dts b/arch/arm/boot/dts/omap4-panda-a4.dts
index 78d363177762..f1a6476af371 100644
--- a/arch/arm/boot/dts/omap4-panda-a4.dts
+++ b/arch/arm/boot/dts/omap4-panda-a4.dts
@@ -13,7 +13,7 @@
/* Pandaboard Rev A4+ have external pullups on SCL & SDA */
&dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts
index 119f8e657edc..940fe4f7c5f6 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -34,7 +34,7 @@
/* PandaboardES has external pullups on SCL & SDA */
&dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 1aeeacb3a884..d4f600dbb7eb 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -558,10 +558,11 @@
};
r_ccu: clock@1f01400 {
- compatible = "allwinner,sun50i-a64-r-ccu";
+ compatible = "allwinner,sun8i-h3-r-ccu";
reg = <0x01f01400 0x100>;
- clocks = <&osc24M>, <&osc32k>, <&iosc>;
- clock-names = "hosc", "losc", "iosc";
+ clocks = <&osc24M>, <&osc32k>, <&iosc>,
+ <&ccu 9>;
+ clock-names = "hosc", "losc", "iosc", "pll-periph";
#clock-cells = <1>;
#reset-cells = <1>;
};
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 33a8eb28374e..06e2331f666d 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -1,4 +1,4 @@
-#include <versatile-ab.dts>
+#include "versatile-ab.dts"
/ {
model = "ARM Versatile PB";
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index cf062472e07b..2b913f17d50f 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -235,7 +235,7 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster)
return ret;
}
-typedef void (*phys_reset_t)(unsigned long);
+typedef typeof(cpu_reset) phys_reset_t;
void mcpm_cpu_power_down(void)
{
@@ -300,7 +300,7 @@ void mcpm_cpu_power_down(void)
* on the CPU.
*/
phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
- phys_reset(__pa_symbol(mcpm_entry_point));
+ phys_reset(__pa_symbol(mcpm_entry_point), false);
/* should never get here */
BUG();
@@ -389,7 +389,7 @@ static int __init nocache_trampoline(unsigned long _arg)
__mcpm_cpu_down(cpu, cluster);
phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
- phys_reset(__pa_symbol(mcpm_entry_point));
+ phys_reset(__pa_symbol(mcpm_entry_point), false);
BUG();
}
diff --git a/arch/arm/configs/gemini_defconfig b/arch/arm/configs/gemini_defconfig
new file mode 100644
index 000000000000..d2d75fa664a6
--- /dev/null
+++ b/arch/arm/configs/gemini_defconfig
@@ -0,0 +1,68 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_USER_NS=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_ARCH_MULTI_V4=y
+# CONFIG_ARCH_MULTI_V7 is not set
+CONFIG_ARCH_GEMINI=y
+CONFIG_PCI=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_CMDLINE="console=ttyS0,115200n8"
+CONFIG_KEXEC=y
+CONFIG_BINFMT_MISC=y
+CONFIG_PM=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=16384
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+CONFIG_GEMINI_WATCHDOG=y
+CONFIG_USB=y
+CONFIG_USB_MON=y
+CONFIG_USB_FOTG210_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_GEMINI=y
+CONFIG_DMADEVICES=y
+# CONFIG_DNOTIFY is not set
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_ROMFS_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DEBUG_FS=y
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 36ec9c8f6e16..3234fe9bba6e 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -19,7 +19,8 @@ struct dev_archdata {
#ifdef CONFIG_XEN
const struct dma_map_ops *dev_dma_ops;
#endif
- bool dma_coherent;
+ unsigned int dma_coherent:1;
+ unsigned int dma_ops_setup:1;
};
struct omap_device;
diff --git a/arch/arm/include/asm/kvm_coproc.h b/arch/arm/include/asm/kvm_coproc.h
index 4917c2f7e459..e74ab0fbab79 100644
--- a/arch/arm/include/asm/kvm_coproc.h
+++ b/arch/arm/include/asm/kvm_coproc.h
@@ -31,7 +31,8 @@ void kvm_register_target_coproc_table(struct kvm_coproc_target_table *table);
int kvm_handle_cp10_id(struct kvm_vcpu *vcpu, struct kvm_run *run);
int kvm_handle_cp_0_13_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run);
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
diff --git a/arch/arm/include/asm/pgtable-nommu.h b/arch/arm/include/asm/pgtable-nommu.h
index 302240c19a5a..a0d726a47c8a 100644
--- a/arch/arm/include/asm/pgtable-nommu.h
+++ b/arch/arm/include/asm/pgtable-nommu.h
@@ -66,6 +66,7 @@ typedef pte_t *pte_addr_t;
#define pgprot_noncached(prot) (prot)
#define pgprot_writecombine(prot) (prot)
#define pgprot_dmacoherent(prot) (prot)
+#define pgprot_device(prot) (prot)
/*
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index 2c14b69511e9..6d1d2e26dfe5 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -32,6 +32,7 @@
#include <asm/vfp.h>
#include "../vfp/vfpinstr.h"
+#define CREATE_TRACE_POINTS
#include "trace.h"
#include "coproc.h"
@@ -111,12 +112,6 @@ int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run)
return 1;
}
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run)
-{
- kvm_inject_undefined(vcpu);
- return 1;
-}
-
static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
{
/*
@@ -284,7 +279,7 @@ static bool access_gic_sre(struct kvm_vcpu *vcpu,
* must always support PMCCNTR (the cycle counter): we just RAZ/WI for
* all PM registers, which doesn't crash the guest kernel at least.
*/
-static bool pm_fake(struct kvm_vcpu *vcpu,
+static bool trap_raz_wi(struct kvm_vcpu *vcpu,
const struct coproc_params *p,
const struct coproc_reg *r)
{
@@ -294,19 +289,19 @@ static bool pm_fake(struct kvm_vcpu *vcpu,
return read_zero(vcpu, p);
}
-#define access_pmcr pm_fake
-#define access_pmcntenset pm_fake
-#define access_pmcntenclr pm_fake
-#define access_pmovsr pm_fake
-#define access_pmselr pm_fake
-#define access_pmceid0 pm_fake
-#define access_pmceid1 pm_fake
-#define access_pmccntr pm_fake
-#define access_pmxevtyper pm_fake
-#define access_pmxevcntr pm_fake
-#define access_pmuserenr pm_fake
-#define access_pmintenset pm_fake
-#define access_pmintenclr pm_fake
+#define access_pmcr trap_raz_wi
+#define access_pmcntenset trap_raz_wi
+#define access_pmcntenclr trap_raz_wi
+#define access_pmovsr trap_raz_wi
+#define access_pmselr trap_raz_wi
+#define access_pmceid0 trap_raz_wi
+#define access_pmceid1 trap_raz_wi
+#define access_pmccntr trap_raz_wi
+#define access_pmxevtyper trap_raz_wi
+#define access_pmxevcntr trap_raz_wi
+#define access_pmuserenr trap_raz_wi
+#define access_pmintenset trap_raz_wi
+#define access_pmintenclr trap_raz_wi
/* Architected CP15 registers.
* CRn denotes the primary register number, but is copied to the CRm in the
@@ -532,12 +527,7 @@ static int emulate_cp15(struct kvm_vcpu *vcpu,
return 1;
}
-/**
- * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run: The kvm_run struct
- */
-int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_64bit_hsr(struct kvm_vcpu *vcpu)
{
struct coproc_params params;
@@ -551,9 +541,38 @@ int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
params.Rt2 = (kvm_vcpu_get_hsr(vcpu) >> 10) & 0xf;
params.CRm = 0;
+ return params;
+}
+
+/**
+ * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run: The kvm_run struct
+ */
+int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ struct coproc_params params = decode_64bit_hsr(vcpu);
+
return emulate_cp15(vcpu, &params);
}
+/**
+ * kvm_handle_cp14_64 -- handles a mrrc/mcrr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run: The kvm_run struct
+ */
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ struct coproc_params params = decode_64bit_hsr(vcpu);
+
+ /* raz_wi cp14 */
+ trap_raz_wi(vcpu, &params, NULL);
+
+ /* handled */
+ kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+ return 1;
+}
+
static void reset_coproc_regs(struct kvm_vcpu *vcpu,
const struct coproc_reg *table, size_t num)
{
@@ -564,12 +583,7 @@ static void reset_coproc_regs(struct kvm_vcpu *vcpu,
table[i].reset(vcpu, &table[i]);
}
-/**
- * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run: The kvm_run struct
- */
-int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_32bit_hsr(struct kvm_vcpu *vcpu)
{
struct coproc_params params;
@@ -583,9 +597,37 @@ int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
params.Op2 = (kvm_vcpu_get_hsr(vcpu) >> 17) & 0x7;
params.Rt2 = 0;
+ return params;
+}
+
+/**
+ * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run: The kvm_run struct
+ */
+int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ struct coproc_params params = decode_32bit_hsr(vcpu);
return emulate_cp15(vcpu, &params);
}
+/**
+ * kvm_handle_cp14_32 -- handles a mrc/mcr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run: The kvm_run struct
+ */
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+ struct coproc_params params = decode_32bit_hsr(vcpu);
+
+ /* raz_wi cp14 */
+ trap_raz_wi(vcpu, &params, NULL);
+
+ /* handled */
+ kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+ return 1;
+}
+
/******************************************************************************
* Userspace API
*****************************************************************************/
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index 5fd7968cdae9..f86a9aaef462 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -95,9 +95,9 @@ static exit_handle_fn arm_exit_handlers[] = {
[HSR_EC_WFI] = kvm_handle_wfx,
[HSR_EC_CP15_32] = kvm_handle_cp15_32,
[HSR_EC_CP15_64] = kvm_handle_cp15_64,
- [HSR_EC_CP14_MR] = kvm_handle_cp14_access,
+ [HSR_EC_CP14_MR] = kvm_handle_cp14_32,
[HSR_EC_CP14_LS] = kvm_handle_cp14_load_store,
- [HSR_EC_CP14_64] = kvm_handle_cp14_access,
+ [HSR_EC_CP14_64] = kvm_handle_cp14_64,
[HSR_EC_CP_0_13] = kvm_handle_cp_0_13_access,
[HSR_EC_CP10_ID] = kvm_handle_cp10_id,
[HSR_EC_HVC] = handle_hvc,
diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
index 3023bb530edf..8679405b0b2b 100644
--- a/arch/arm/kvm/hyp/Makefile
+++ b/arch/arm/kvm/hyp/Makefile
@@ -2,6 +2,8 @@
# Makefile for Kernel-based Virtual Machine module, HYP part
#
+ccflags-y += -fno-stack-protector
+
KVM=../../../../virt/kvm
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
diff --git a/arch/arm/kvm/hyp/switch.c b/arch/arm/kvm/hyp/switch.c
index 92678b7bd046..624a510d31df 100644
--- a/arch/arm/kvm/hyp/switch.c
+++ b/arch/arm/kvm/hyp/switch.c
@@ -48,7 +48,9 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu, u32 *fpexc_host)
write_sysreg(HSTR_T(15), HSTR);
write_sysreg(HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11), HCPTR);
val = read_sysreg(HDCR);
- write_sysreg(val | HDCR_TPM | HDCR_TPMCR, HDCR);
+ val |= HDCR_TPM | HDCR_TPMCR; /* trap performance monitors */
+ val |= HDCR_TDRA | HDCR_TDOSA | HDCR_TDA; /* trap debug regs */
+ write_sysreg(val, HDCR);
}
static void __hyp_text __deactivate_traps(struct kvm_vcpu *vcpu)
diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index 570ed4a9c261..5386528665b5 100644
--- a/arch/arm/kvm/init.S
+++ b/arch/arm/kvm/init.S
@@ -104,7 +104,6 @@ __do_hyp_init:
@ - Write permission implies XN: disabled
@ - Instruction cache: enabled
@ - Data/Unified cache: enabled
- @ - Memory alignment checks: enabled
@ - MMU: enabled (this code must be run from an identity mapping)
mrc p15, 4, r0, c1, c0, 0 @ HSCR
ldr r2, =HSCTLR_MASK
@@ -112,8 +111,8 @@ __do_hyp_init:
mrc p15, 0, r1, c1, c0, 0 @ SCTLR
ldr r2, =(HSCTLR_EE | HSCTLR_FI | HSCTLR_I | HSCTLR_C)
and r1, r1, r2
- ARM( ldr r2, =(HSCTLR_M | HSCTLR_A) )
- THUMB( ldr r2, =(HSCTLR_M | HSCTLR_A | HSCTLR_TE) )
+ ARM( ldr r2, =(HSCTLR_M) )
+ THUMB( ldr r2, =(HSCTLR_M | HSCTLR_TE) )
orr r1, r1, r2
orr r0, r0, r1
mcr p15, 4, r0, c1, c0, 0 @ HSCR
diff --git a/arch/arm/kvm/trace.h b/arch/arm/kvm/trace.h
index fc0943776db2..b0d10648c486 100644
--- a/arch/arm/kvm/trace.h
+++ b/arch/arm/kvm/trace.h
@@ -1,5 +1,5 @@
-#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_KVM_H
+#if !defined(_TRACE_ARM_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ARM_KVM_H
#include <linux/tracepoint.h>
@@ -74,10 +74,10 @@ TRACE_EVENT(kvm_hvc,
__entry->vcpu_pc, __entry->r0, __entry->imm)
);
-#endif /* _TRACE_KVM_H */
+#endif /* _TRACE_ARM_KVM_H */
#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH arch/arm/kvm
+#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 841e924143f9..cbd959b73654 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -1,6 +1,7 @@
menuconfig ARCH_AT91
bool "Atmel SoCs"
depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7
+ select ARM_CPU_SUSPEND if PM
select COMMON_CLK_AT91
select GPIOLIB
select PINCTRL
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 2cd27c830ab6..283e79ab587d 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -335,7 +335,7 @@ static const struct ramc_info ramc_infos[] __initconst = {
{ .idle = sama5d3_ddr_standby, .memctrl = AT91_MEMCTRL_DDRSDR},
};
-static const struct of_device_id const ramc_ids[] __initconst = {
+static const struct of_device_id ramc_ids[] __initconst = {
{ .compatible = "atmel,at91rm9200-sdramc", .data = &ramc_infos[0] },
{ .compatible = "atmel,at91sam9260-sdramc", .data = &ramc_infos[1] },
{ .compatible = "atmel,at91sam9g45-ddramc", .data = &ramc_infos[2] },
diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c
index cf3f8658f0e5..a55a7ecf146a 100644
--- a/arch/arm/mach-bcm/bcm_kona_smc.c
+++ b/arch/arm/mach-bcm/bcm_kona_smc.c
@@ -33,7 +33,7 @@ struct bcm_kona_smc_data {
unsigned result;
};
-static const struct of_device_id const bcm_kona_smc_ids[] __initconst = {
+static const struct of_device_id bcm_kona_smc_ids[] __initconst = {
{.compatible = "brcm,kona-smc"},
{.compatible = "bcm,kona-smc"}, /* deprecated name */
{},
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index 03da3813f1ab..7d5a44a06648 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -346,7 +346,7 @@ static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = {
.power_off = csn3xxx_usb_power_off,
};
-static const struct of_dev_auxdata const cns3xxx_auxdata[] __initconst = {
+static const struct of_dev_auxdata cns3xxx_auxdata[] __initconst = {
{ "intel,usb-ehci", CNS3XXX_USB_BASE, "ehci-platform", &cns3xxx_usb_ehci_pdata },
{ "intel,usb-ohci", CNS3XXX_USB_OHCI_BASE, "ohci-platform", &cns3xxx_usb_ohci_pdata },
{ "cavium,cns3420-ahci", CNS3XXX_SATA2_BASE, "ahci", NULL },
diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
index efb80354f303..b5cc05dc2cb2 100644
--- a/arch/arm/mach-davinci/pm.c
+++ b/arch/arm/mach-davinci/pm.c
@@ -153,7 +153,8 @@ int __init davinci_pm_init(void)
davinci_sram_suspend = sram_alloc(davinci_cpu_suspend_sz, NULL);
if (!davinci_sram_suspend) {
pr_err("PM: cannot allocate SRAM memory\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto no_sram_mem;
}
davinci_sram_push(davinci_sram_suspend, davinci_cpu_suspend,
@@ -161,6 +162,10 @@ int __init davinci_pm_init(void)
suspend_set_ops(&davinci_pm_ops);
+ return 0;
+
+no_sram_mem:
+ iounmap(pm_config.ddrpsc_reg_base);
no_ddrpsc_mem:
iounmap(pm_config.ddrpll_reg_base);
no_ddrpll_mem:
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 3089d3bfa19b..8cc6338fcb12 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -266,11 +266,12 @@ extern int omap4_cpu_kill(unsigned int cpu);
extern const struct smp_operations omap4_smp_ops;
#endif
+extern u32 omap4_get_cpu1_ns_pa_addr(void);
+
#if defined(CONFIG_SMP) && defined(CONFIG_PM)
extern int omap4_mpuss_init(void);
extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
-extern u32 omap4_get_cpu1_ns_pa_addr(void);
#else
static inline int omap4_enter_lowpower(unsigned int cpu,
unsigned int power_state)
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 03ec6d307c82..4cfc4f9b2c69 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -213,11 +213,6 @@ static void __init save_l2x0_context(void)
{}
#endif
-u32 omap4_get_cpu1_ns_pa_addr(void)
-{
- return old_cpu1_ns_pa_addr;
-}
-
/**
* omap4_enter_lowpower: OMAP4 MPUSS Low Power Entry Function
* The purpose of this function is to manage low power programming
@@ -457,6 +452,11 @@ int __init omap4_mpuss_init(void)
#endif
+u32 omap4_get_cpu1_ns_pa_addr(void)
+{
+ return old_cpu1_ns_pa_addr;
+}
+
/*
* For kexec, we must set CPU1_WAKEUP_NS_PA_ADDR to point to
* current kernel's secondary_startup() early before
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 3faf454ba487..33e4953c61a8 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -306,7 +306,6 @@ static void __init omap4_smp_maybe_reset_cpu1(struct omap_smp_config *c)
cpu1_startup_pa = readl_relaxed(cfg.wakeupgen_base +
OMAP_AUX_CORE_BOOT_1);
- cpu1_ns_pa_addr = omap4_get_cpu1_ns_pa_addr();
/* Did the configured secondary_startup() get overwritten? */
if (!omap4_smp_cpu1_startup_valid(cpu1_startup_pa))
@@ -316,9 +315,13 @@ static void __init omap4_smp_maybe_reset_cpu1(struct omap_smp_config *c)
* If omap4 or 5 has NS_PA_ADDR configured, CPU1 may be in a
* deeper idle state in WFI and will wake to an invalid address.
*/
- if ((soc_is_omap44xx() || soc_is_omap54xx()) &&
- !omap4_smp_cpu1_startup_valid(cpu1_ns_pa_addr))
- needs_reset = true;
+ if ((soc_is_omap44xx() || soc_is_omap54xx())) {
+ cpu1_ns_pa_addr = omap4_get_cpu1_ns_pa_addr();
+ if (!omap4_smp_cpu1_startup_valid(cpu1_ns_pa_addr))
+ needs_reset = true;
+ } else {
+ cpu1_ns_pa_addr = 0;
+ }
if (!needs_reset || !c->cpu1_rstctrl_va)
return;
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 2b138b65129a..dc11841ca334 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -711,7 +711,7 @@ static struct omap_prcm_init_data scrm_data __initdata = {
};
#endif
-static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = {
+static const struct of_device_id omap_prcm_dt_match_table[] __initconst = {
#ifdef CONFIG_SOC_AM33XX
{ .compatible = "ti,am3-prcm", .data = &am3_prm_data },
#endif
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 2028167fff31..d76b1e5eb8ba 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -559,7 +559,7 @@ struct i2c_init_data {
u8 hsscll_12;
};
-static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = {
+static const struct i2c_init_data omap4_i2c_timing_data[] __initconst = {
{
.load = 50,
.loadbits = 0x3,
diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c
index 4878ba90026d..289e036c9c30 100644
--- a/arch/arm/mach-spear/time.c
+++ b/arch/arm/mach-spear/time.c
@@ -204,7 +204,7 @@ static void __init spear_clockevent_init(int irq)
setup_irq(irq, &spear_timer_irq);
}
-static const struct of_device_id const timer_of_match[] __initconst = {
+static const struct of_device_id timer_of_match[] __initconst = {
{ .compatible = "st,spear-timer", },
{ },
};
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index c742dfd2967b..bd83c531828a 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2311,7 +2311,14 @@ int arm_iommu_attach_device(struct device *dev,
}
EXPORT_SYMBOL_GPL(arm_iommu_attach_device);
-static void __arm_iommu_detach_device(struct device *dev)
+/**
+ * arm_iommu_detach_device
+ * @dev: valid struct device pointer
+ *
+ * Detaches the provided device from a previously attached map.
+ * This voids the dma operations (dma_map_ops pointer)
+ */
+void arm_iommu_detach_device(struct device *dev)
{
struct dma_iommu_mapping *mapping;
@@ -2324,22 +2331,10 @@ static void __arm_iommu_detach_device(struct device *dev)
iommu_detach_device(mapping->domain, dev);
kref_put(&mapping->kref, release_iommu_mapping);
to_dma_iommu_mapping(dev) = NULL;
+ set_dma_ops(dev, NULL);
pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
}
-
-/**
- * arm_iommu_detach_device
- * @dev: valid struct device pointer
- *
- * Detaches the provided device from a previously attached map.
- * This voids the dma operations (dma_map_ops pointer)
- */
-void arm_iommu_detach_device(struct device *dev)
-{
- __arm_iommu_detach_device(dev);
- set_dma_ops(dev, NULL);
-}
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
@@ -2379,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev)
if (!mapping)
return;
- __arm_iommu_detach_device(dev);
+ arm_iommu_detach_device(dev);
arm_iommu_release_mapping(mapping);
}
@@ -2430,9 +2425,13 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
dev->dma_ops = xen_dma_ops;
}
#endif
+ dev->archdata.dma_ops_setup = true;
}
void arch_teardown_dma_ops(struct device *dev)
{
+ if (!dev->archdata.dma_ops_setup)
+ return;
+
arm_teardown_iommu_dma_ops(dev);
}
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 2239fde10b80..f0701d8d24df 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -90,7 +90,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
+ (!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
@@ -141,7 +141,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
addr = PAGE_ALIGN(addr);
vma = find_vma(mm, addr);
if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
+ (!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 3dcd7ec69bca..b2024db225a9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1084,10 +1084,6 @@ config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
-config KEYS_COMPAT
- def_bool y
- depends on COMPAT && KEYS
-
endmenu
menu "Power management options"
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 4afcffcb46cb..73272f43ca01 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -106,8 +106,13 @@ config ARCH_MVEBU
select ARMADA_AP806_SYSCON
select ARMADA_CP110_SYSCON
select ARMADA_37XX_CLK
+ select GPIOLIB
+ select GPIOLIB_IRQCHIP
select MVEBU_ODMI
select MVEBU_PIC
+ select OF_GPIO
+ select PINCTRL
+ select PINCTRL_ARMADA_37XX
help
This enables support for Marvell EBU familly, including:
- Armada 3700 SoC Family
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index c7f669f5884f..166c9ef884dc 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -406,8 +406,9 @@
r_ccu: clock@1f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
- clocks = <&osc24M>, <&osc32k>, <&iosc>;
- clock-names = "hosc", "losc", "iosc";
+ clocks = <&osc24M>, <&osc32k>, <&iosc>,
+ <&ccu 11>;
+ clock-names = "hosc", "losc", "iosc", "pll-periph";
#clock-cells = <1>;
#reset-cells = <1>;
};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index 4d314a253fd9..732e2e06f503 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -40,7 +40,7 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
-#include "sunxi-h3-h5.dtsi"
+#include <arm/sunxi-h3-h5.dtsi>
/ {
cpus {
diff --git a/arch/arm64/boot/dts/allwinner/sunxi-h3-h5.dtsi b/arch/arm64/boot/dts/allwinner/sunxi-h3-h5.dtsi
deleted file mode 120000
index 036f01dc2b9b..000000000000
--- a/arch/arm64/boot/dts/allwinner/sunxi-h3-h5.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/sunxi-h3-h5.dtsi \ No newline at end of file
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 75bce2d0b1a8..49f6a6242cf9 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -81,6 +81,45 @@
};
};
+ reg_sys_5v: regulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "SYS_5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_vdd_3v3: regulator@1 {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ vin-supply = <&reg_sys_5v>;
+ };
+
+ reg_5v_hub: regulator@2 {
+ compatible = "regulator-fixed";
+ regulator-name = "5V_HUB";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ gpio = <&gpio0 7 0>;
+ regulator-always-on;
+ vin-supply = <&reg_sys_5v>;
+ };
+
+ wl1835_pwrseq: wl1835-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ /* WLAN_EN GPIO */
+ reset-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
+ clocks = <&pmic>;
+ clock-names = "ext_clock";
+ power-off-delay-us = <10>;
+ };
+
soc {
spi0: spi@f7106000 {
status = "ok";
@@ -256,11 +295,31 @@
/* GPIO blocks 16 thru 19 do not appear to be routed to pins */
+ dwmmc_0: dwmmc0@f723d000 {
+ cap-mmc-highspeed;
+ non-removable;
+ bus-width = <0x8>;
+ vmmc-supply = <&ldo19>;
+ };
+
+ dwmmc_1: dwmmc1@f723e000 {
+ card-detect-delay = <200>;
+ cap-sd-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ vqmmc-supply = <&ldo7>;
+ vmmc-supply = <&ldo10>;
+ bus-width = <0x4>;
+ disable-wp;
+ cd-gpios = <&gpio1 0 1>;
+ };
+
dwmmc_2: dwmmc2@f723f000 {
- ti,non-removable;
+ bus-width = <0x4>;
non-removable;
- /* WL_EN */
- vmmc-supply = <&wlan_en_reg>;
+ vmmc-supply = <&reg_vdd_3v3>;
+ mmc-pwrseq = <&wl1835_pwrseq>;
#address-cells = <0x1>;
#size-cells = <0x0>;
@@ -272,18 +331,6 @@
interrupts = <3 IRQ_TYPE_EDGE_RISING>;
};
};
-
- wlan_en_reg: regulator@1 {
- compatible = "regulator-fixed";
- regulator-name = "wlan-en-regulator";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- /* WLAN_EN GPIO */
- gpio = <&gpio0 5 0>;
- /* WLAN card specific delay */
- startup-delay-us = <70000>;
- enable-active-high;
- };
};
leds {
@@ -330,6 +377,7 @@
pmic: pmic@f8000000 {
compatible = "hisilicon,hi655x-pmic";
reg = <0x0 0xf8000000 0x0 0x1000>;
+ #clock-cells = <0>;
interrupt-controller;
#interrupt-cells = <2>;
pmic-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 1e5129b19280..5013e4b2ea71 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -725,20 +725,10 @@
status = "disabled";
};
- fixed_5v_hub: regulator@0 {
- compatible = "regulator-fixed";
- regulator-name = "fixed_5v_hub";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- regulator-boot-on;
- gpio = <&gpio0 7 0>;
- regulator-always-on;
- };
-
usb_phy: usbphy {
compatible = "hisilicon,hi6220-usb-phy";
#phy-cells = <0>;
- phy-supply = <&fixed_5v_hub>;
+ phy-supply = <&reg_5v_hub>;
hisilicon,peripheral-syscon = <&sys_ctrl>;
};
@@ -766,17 +756,12 @@
dwmmc_0: dwmmc0@f723d000 {
compatible = "hisilicon,hi6220-dw-mshc";
- num-slots = <0x1>;
- cap-mmc-highspeed;
- non-removable;
reg = <0x0 0xf723d000 0x0 0x1000>;
interrupts = <0x0 0x48 0x4>;
clocks = <&sys_ctrl 2>, <&sys_ctrl 1>;
clock-names = "ciu", "biu";
resets = <&sys_ctrl PERIPH_RSTDIS0_MMC0>;
reset-names = "reset";
- bus-width = <0x8>;
- vmmc-supply = <&ldo19>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_pmx_func &emmc_clk_cfg_func
&emmc_cfg_func &emmc_rst_cfg_func>;
@@ -784,13 +769,7 @@
dwmmc_1: dwmmc1@f723e000 {
compatible = "hisilicon,hi6220-dw-mshc";
- num-slots = <0x1>;
- card-detect-delay = <200>;
hisilicon,peripheral-syscon = <&ao_ctrl>;
- cap-sd-highspeed;
- sd-uhs-sdr12;
- sd-uhs-sdr25;
- sd-uhs-sdr50;
reg = <0x0 0xf723e000 0x0 0x1000>;
interrupts = <0x0 0x49 0x4>;
#address-cells = <0x1>;
@@ -799,11 +778,6 @@
clock-names = "ciu", "biu";
resets = <&sys_ctrl PERIPH_RSTDIS0_MMC1>;
reset-names = "reset";
- vqmmc-supply = <&ldo7>;
- vmmc-supply = <&ldo10>;
- bus-width = <0x4>;
- disable-wp;
- cd-gpios = <&gpio1 0 1>;
pinctrl-names = "default", "idle";
pinctrl-0 = <&sd_pmx_func &sd_clk_cfg_func &sd_cfg_func>;
pinctrl-1 = <&sd_pmx_idle &sd_clk_cfg_idle &sd_cfg_idle>;