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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
commit3ed1c478eff8db80e234d5446cb378b503135888 (patch)
treee1c8e0f488ca49c49b5a31fe59add4254381dd4b /include/linux
parent151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2 (diff)
parent371deb9500831ad1afbf9ea00e373f650deaed2f (diff)
downloadlinux-3ed1c478eff8db80e234d5446cb378b503135888.tar.gz
Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael J Wysocki: - ARM big.LITTLE cpufreq driver from Viresh Kumar. - exynos5440 cpufreq driver from Amit Daniel Kachhap. - cpufreq core cleanup and code consolidation from Viresh Kumar and Stratos Karafotis. - cpufreq scalability improvement from Nathan Zimmer. - AMD "frequency sensitivity feedback" powersave bias for the ondemand cpufreq governor from Jacob Shin. - cpuidle code consolidation and cleanups from Daniel Lezcano. - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano. - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto. - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle, Yasuaki Ishimatsu, and Rafael J Wysocki. - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from Rafael J Wysocki and Andy Shevchenko. * tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits) cpufreq: Revert incorrect commit 5800043 cpufreq: MAINTAINERS: Add co-maintainer cpuidle: add maintainer entry ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points ARM: s3c64xx: cpuidle: use init/exit common routine cpufreq: pxa2xx: initialize variables ACPI: video: correct acpi_video_bus_add error processing SH: cpuidle: use init/exit common routine ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y ACPI: Fix wrong parameter passed to memblock_reserve cpuidle: fix comment format pnp: use %*phC to dump small buffers isapnp: remove debug leftovers ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/acpi.h4
-rw-r--r--include/linux/clockchips.h32
-rw-r--r--include/linux/cpufreq.h21
-rw-r--r--include/linux/cpuidle.h23
-rw-r--r--include/linux/platform_data/clk-lpss.h18
5 files changed, 62 insertions, 36 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 03053aca5b3..17b5b596764 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -195,7 +195,7 @@ extern bool wmi_has_guid(const char *guid);
#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
-extern long acpi_is_video_device(struct acpi_device *device);
+extern long acpi_is_video_device(acpi_handle handle);
extern void acpi_video_dmi_promote_vendor(void);
extern void acpi_video_dmi_demote_vendor(void);
extern int acpi_video_backlight_support(void);
@@ -208,7 +208,7 @@ static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
return 0;
}
-static inline long acpi_is_video_device(struct acpi_device *device)
+static inline long acpi_is_video_device(acpi_handle handle)
{
return 0;
}
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 464e229e7d8..963d7143138 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -8,6 +8,20 @@
#ifndef _LINUX_CLOCKCHIPS_H
#define _LINUX_CLOCKCHIPS_H
+/* Clock event notification values */
+enum clock_event_nofitiers {
+ CLOCK_EVT_NOTIFY_ADD,
+ CLOCK_EVT_NOTIFY_BROADCAST_ON,
+ CLOCK_EVT_NOTIFY_BROADCAST_OFF,
+ CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
+ CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
+ CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
+ CLOCK_EVT_NOTIFY_SUSPEND,
+ CLOCK_EVT_NOTIFY_RESUME,
+ CLOCK_EVT_NOTIFY_CPU_DYING,
+ CLOCK_EVT_NOTIFY_CPU_DEAD,
+};
+
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BUILD
#include <linux/clocksource.h>
@@ -26,20 +40,6 @@ enum clock_event_mode {
CLOCK_EVT_MODE_RESUME,
};
-/* Clock event notification values */
-enum clock_event_nofitiers {
- CLOCK_EVT_NOTIFY_ADD,
- CLOCK_EVT_NOTIFY_BROADCAST_ON,
- CLOCK_EVT_NOTIFY_BROADCAST_OFF,
- CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
- CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
- CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
- CLOCK_EVT_NOTIFY_SUSPEND,
- CLOCK_EVT_NOTIFY_RESUME,
- CLOCK_EVT_NOTIFY_CPU_DYING,
- CLOCK_EVT_NOTIFY_CPU_DEAD,
-};
-
/*
* Clock event features
*/
@@ -184,7 +184,7 @@ static inline int tick_check_broadcast_expired(void) { return 0; }
#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern void clockevents_notify(unsigned long reason, void *arg);
#else
-# define clockevents_notify(reason, arg) do { } while (0)
+static inline void clockevents_notify(unsigned long reason, void *arg) {}
#endif
#else /* CONFIG_GENERIC_CLOCKEVENTS_BUILD */
@@ -192,7 +192,7 @@ extern void clockevents_notify(unsigned long reason, void *arg);
static inline void clockevents_suspend(void) {}
static inline void clockevents_resume(void) {}
-#define clockevents_notify(reason, arg) do { } while (0)
+static inline void clockevents_notify(unsigned long reason, void *arg) {}
static inline int tick_check_broadcast_expired(void) { return 0; }
#endif
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a22944ca052..037d36ae63e 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -106,6 +106,7 @@ struct cpufreq_policy {
* governors are used */
unsigned int policy; /* see above */
struct cpufreq_governor *governor; /* see below */
+ void *governor_data;
struct work_struct update; /* if update_policy() needs to be
* called, but you're in IRQ context */
@@ -178,9 +179,11 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mu
* CPUFREQ GOVERNORS *
*********************************************************************/
-#define CPUFREQ_GOV_START 1
-#define CPUFREQ_GOV_STOP 2
-#define CPUFREQ_GOV_LIMITS 3
+#define CPUFREQ_GOV_START 1
+#define CPUFREQ_GOV_STOP 2
+#define CPUFREQ_GOV_LIMITS 3
+#define CPUFREQ_GOV_POLICY_INIT 4
+#define CPUFREQ_GOV_POLICY_EXIT 5
struct cpufreq_governor {
char name[CPUFREQ_NAME_LEN];
@@ -229,6 +232,13 @@ struct cpufreq_driver {
struct module *owner;
char name[CPUFREQ_NAME_LEN];
u8 flags;
+ /*
+ * This should be set by platforms having multiple clock-domains, i.e.
+ * supporting multiple policies. With this sysfs directories of governor
+ * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
+ * use the same governor with different tunables for different clusters.
+ */
+ bool have_governor_per_policy;
/* needed by all drivers */
int (*init) (struct cpufreq_policy *policy);
@@ -268,8 +278,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
-void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state);
-
+void cpufreq_notify_transition(struct cpufreq_policy *policy,
+ struct cpufreq_freqs *freqs, unsigned int state);
static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max)
{
@@ -329,6 +339,7 @@ const char *cpufreq_get_current_driver(void);
*********************************************************************/
int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
int cpufreq_update_policy(unsigned int cpu);
+bool have_governor_per_policy(void);
#ifdef CONFIG_CPU_FREQ
/* query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it */
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 480c14dc1dd..3c86faa5979 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -57,6 +57,7 @@ struct cpuidle_state {
/* Idle State Flags */
#define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */
#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
+#define CPUIDLE_FLAG_TIMER_STOP (0x04) /* timer is stopped on this state */
#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
@@ -104,8 +105,8 @@ struct cpuidle_driver {
struct module *owner;
int refcnt;
- /* set to 1 to use the core cpuidle time keeping (for all states). */
- unsigned int en_core_tk_irqen:1;
+ /* used by the cpuidle framework to setup the broadcast timer */
+ unsigned int bctimer:1;
/* states array must be ordered in decreasing power consumption */
struct cpuidle_state states[CPUIDLE_STATE_MAX];
int state_count;
@@ -122,17 +123,15 @@ extern void cpuidle_driver_unref(void);
extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
extern int cpuidle_register_device(struct cpuidle_device *dev);
extern void cpuidle_unregister_device(struct cpuidle_device *dev);
-
+extern int cpuidle_register(struct cpuidle_driver *drv,
+ const struct cpumask *const coupled_cpus);
+extern void cpuidle_unregister(struct cpuidle_driver *drv);
extern void cpuidle_pause_and_lock(void);
extern void cpuidle_resume_and_unlock(void);
extern void cpuidle_pause(void);
extern void cpuidle_resume(void);
extern int cpuidle_enable_device(struct cpuidle_device *dev);
extern void cpuidle_disable_device(struct cpuidle_device *dev);
-extern int cpuidle_wrap_enter(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index,
- int (*enter)(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index));
extern int cpuidle_play_dead(void);
extern struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev);
@@ -151,7 +150,10 @@ static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { }
static inline int cpuidle_register_device(struct cpuidle_device *dev)
{return -ENODEV; }
static inline void cpuidle_unregister_device(struct cpuidle_device *dev) { }
-
+static inline int cpuidle_register(struct cpuidle_driver *drv,
+ const struct cpumask *const coupled_cpus)
+{return -ENODEV; }
+static inline void cpuidle_unregister(struct cpuidle_driver *drv) { }
static inline void cpuidle_pause_and_lock(void) { }
static inline void cpuidle_resume_and_unlock(void) { }
static inline void cpuidle_pause(void) { }
@@ -159,11 +161,6 @@ static inline void cpuidle_resume(void) { }
static inline int cpuidle_enable_device(struct cpuidle_device *dev)
{return -ENODEV; }
static inline void cpuidle_disable_device(struct cpuidle_device *dev) { }
-static inline int cpuidle_wrap_enter(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index,
- int (*enter)(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index))
-{ return -ENODEV; }
static inline int cpuidle_play_dead(void) {return -ENODEV; }
#endif
diff --git a/include/linux/platform_data/clk-lpss.h b/include/linux/platform_data/clk-lpss.h
new file mode 100644
index 00000000000..528e73ce46d
--- /dev/null
+++ b/include/linux/platform_data/clk-lpss.h
@@ -0,0 +1,18 @@
+/*
+ * Intel Low Power Subsystem clocks.
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
+ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __CLK_LPSS_H
+#define __CLK_LPSS_H
+
+extern int lpt_clk_init(void);
+
+#endif /* __CLK_LPSS_H */