* [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle
@ 2017-08-05 12:55 Rafael J. Wysocki
2017-08-05 12:56 ` [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE Rafael J. Wysocki
` (4 more replies)
0 siblings, 5 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-05 12:55 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
Hi Everyone,
The term "suspend-to-idle" (and its short form "s2idle") was invented after
introducing support for the system state it refers to. At that time, the
feature was called "freeze", kind of for the lack of a better idea how to
call it.
It would not be a problem if it wasn't confusing, but alas it is. The word
"freeze" is quite heavily loaded in the PM terminology. It is related to
the freezing of tasks, the freezing of filesystems (which isn't only used
for PM for that matter), and one of the phases of handling devices during
hibernation (and during resume from it) is called "freeze", which is reflected
in the names of PM callbacks used by it.
To avoid that confusion, the following patches change the names of various
items related to suspend-to-idle by replacing the word "freeze" in them
with "s2idle".
The series is on top of current linux-next.
Thanks,
Rafael
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
@ 2017-08-05 12:56 ` Rafael J. Wysocki
2017-08-07 8:49 ` Peter Zijlstra
2017-08-05 12:58 ` [PATCH 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
` (3 subsequent siblings)
4 siblings, 1 reply; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-05 12:56 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
To make it clear that the symbol in question refers to
suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
PM_SUSPEND_S2IDLE.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/sleep.c | 2 -
drivers/regulator/of_regulator.c | 2 -
include/linux/suspend.h | 4 +--
kernel/power/suspend.c | 44 +++++++++++++++++++--------------------
kernel/power/suspend_test.c | 4 +--
5 files changed, 28 insertions(+), 28 deletions(-)
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
typedef int __bitwise suspend_state_t;
#define PM_SUSPEND_ON ((__force suspend_state_t) 0)
-#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1)
+#define PM_SUSPEND_S2IDLE ((__force suspend_state_t) 1)
#define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2)
#define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
-#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE
+#define PM_SUSPEND_MIN PM_SUSPEND_S2IDLE
#define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
enum suspend_stat_step {
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -35,19 +35,19 @@
#include "power.h"
const char * const pm_labels[] = {
- [PM_SUSPEND_FREEZE] = "freeze",
+ [PM_SUSPEND_S2IDLE] = "freeze",
[PM_SUSPEND_STANDBY] = "standby",
[PM_SUSPEND_MEM] = "mem",
};
const char *pm_states[PM_SUSPEND_MAX];
static const char * const mem_sleep_labels[] = {
- [PM_SUSPEND_FREEZE] = "s2idle",
+ [PM_SUSPEND_S2IDLE] = "s2idle",
[PM_SUSPEND_STANDBY] = "shallow",
[PM_SUSPEND_MEM] = "deep",
};
const char *mem_sleep_states[PM_SUSPEND_MAX];
-suspend_state_t mem_sleep_current = PM_SUSPEND_FREEZE;
+suspend_state_t mem_sleep_current = PM_SUSPEND_S2IDLE;
suspend_state_t mem_sleep_default = PM_SUSPEND_MAX;
suspend_state_t pm_suspend_target_state;
EXPORT_SYMBOL_GPL(pm_suspend_target_state);
@@ -76,7 +76,7 @@ static void freeze_begin(void)
static void freeze_enter(void)
{
- trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, true);
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_S2IDLE, true);
spin_lock_irq(&suspend_freeze_lock);
if (pm_wakeup_pending())
@@ -103,7 +103,7 @@ static void freeze_enter(void)
suspend_freeze_state = FREEZE_STATE_NONE;
spin_unlock_irq(&suspend_freeze_lock);
- trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, false);
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_S2IDLE, false);
}
static void s2idle_loop(void)
@@ -175,19 +175,19 @@ void __init pm_states_init(void)
{
/* "mem" and "freeze" are always present in /sys/power/state. */
pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
- pm_states[PM_SUSPEND_FREEZE] = pm_labels[PM_SUSPEND_FREEZE];
+ pm_states[PM_SUSPEND_S2IDLE] = pm_labels[PM_SUSPEND_S2IDLE];
/*
* Suspend-to-idle should be supported even without any suspend_ops,
* initialize mem_sleep_states[] accordingly here.
*/
- mem_sleep_states[PM_SUSPEND_FREEZE] = mem_sleep_labels[PM_SUSPEND_FREEZE];
+ mem_sleep_states[PM_SUSPEND_S2IDLE] = mem_sleep_labels[PM_SUSPEND_S2IDLE];
}
static int __init mem_sleep_default_setup(char *str)
{
suspend_state_t state;
- for (state = PM_SUSPEND_FREEZE; state <= PM_SUSPEND_MEM; state++)
+ for (state = PM_SUSPEND_S2IDLE; state <= PM_SUSPEND_MEM; state++)
if (mem_sleep_labels[state] &&
!strcmp(str, mem_sleep_labels[state])) {
mem_sleep_default = state;
@@ -239,48 +239,48 @@ EXPORT_SYMBOL_GPL(suspend_valid_only_mem
static bool sleep_state_supported(suspend_state_t state)
{
- return state == PM_SUSPEND_FREEZE || (suspend_ops && suspend_ops->enter);
+ return state == PM_SUSPEND_S2IDLE || (suspend_ops && suspend_ops->enter);
}
static int platform_suspend_prepare(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->prepare ?
+ return state != PM_SUSPEND_S2IDLE && suspend_ops->prepare ?
suspend_ops->prepare() : 0;
}
static int platform_suspend_prepare_late(suspend_state_t state)
{
- return state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->prepare ?
+ return state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->prepare ?
freeze_ops->prepare() : 0;
}
static int platform_suspend_prepare_noirq(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->prepare_late ?
+ return state != PM_SUSPEND_S2IDLE && suspend_ops->prepare_late ?
suspend_ops->prepare_late() : 0;
}
static void platform_resume_noirq(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->wake)
+ if (state != PM_SUSPEND_S2IDLE && suspend_ops->wake)
suspend_ops->wake();
}
static void platform_resume_early(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->restore)
+ if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->restore)
freeze_ops->restore();
}
static void platform_resume_finish(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->finish)
+ if (state != PM_SUSPEND_S2IDLE && suspend_ops->finish)
suspend_ops->finish();
}
static int platform_suspend_begin(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->begin)
+ if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->begin)
return freeze_ops->begin();
else if (suspend_ops && suspend_ops->begin)
return suspend_ops->begin(state);
@@ -290,7 +290,7 @@ static int platform_suspend_begin(suspen
static void platform_resume_end(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->end)
+ if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->end)
freeze_ops->end();
else if (suspend_ops && suspend_ops->end)
suspend_ops->end();
@@ -298,13 +298,13 @@ static void platform_resume_end(suspend_
static void platform_recover(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->recover)
+ if (state != PM_SUSPEND_S2IDLE && suspend_ops->recover)
suspend_ops->recover();
}
static bool platform_suspend_again(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->suspend_again ?
+ return state != PM_SUSPEND_S2IDLE && suspend_ops->suspend_again ?
suspend_ops->suspend_again() : false;
}
@@ -400,7 +400,7 @@ static int suspend_enter(suspend_state_t
if (error)
goto Devices_early_resume;
- if (state == PM_SUSPEND_FREEZE && pm_test_level != TEST_PLATFORM) {
+ if (state == PM_SUSPEND_S2IDLE && pm_test_level != TEST_PLATFORM) {
s2idle_loop();
goto Platform_early_resume;
}
@@ -538,7 +538,7 @@ static int enter_state(suspend_state_t s
int error;
trace_suspend_resume(TPS("suspend_enter"), state, true);
- if (state == PM_SUSPEND_FREEZE) {
+ if (state == PM_SUSPEND_S2IDLE) {
#ifdef CONFIG_PM_DEBUG
if (pm_test_level != TEST_NONE && pm_test_level <= TEST_CPUS) {
pr_warn("Unsupported test mode for suspend to idle, please choose none/freezer/devices/platform.\n");
@@ -551,7 +551,7 @@ static int enter_state(suspend_state_t s
if (!mutex_trylock(&pm_mutex))
return -EBUSY;
- if (state == PM_SUSPEND_FREEZE)
+ if (state == PM_SUSPEND_S2IDLE)
freeze_begin();
#ifndef CONFIG_SUSPEND_SKIP_SYNC
Index: linux-pm/kernel/power/suspend_test.c
===================================================================
--- linux-pm.orig/kernel/power/suspend_test.c
+++ linux-pm/kernel/power/suspend_test.c
@@ -104,9 +104,9 @@ repeat:
printk(info_test, pm_states[state]);
status = pm_suspend(state);
if (status < 0)
- state = PM_SUSPEND_FREEZE;
+ state = PM_SUSPEND_S2IDLE;
}
- if (state == PM_SUSPEND_FREEZE) {
+ if (state == PM_SUSPEND_S2IDLE) {
printk(info_test, pm_states[state]);
status = pm_suspend(state);
}
Index: linux-pm/drivers/regulator/of_regulator.c
===================================================================
--- linux-pm.orig/drivers/regulator/of_regulator.c
+++ linux-pm/drivers/regulator/of_regulator.c
@@ -150,7 +150,7 @@ static void of_get_regulation_constraint
suspend_state = &constraints->state_disk;
break;
case PM_SUSPEND_ON:
- case PM_SUSPEND_FREEZE:
+ case PM_SUSPEND_S2IDLE:
case PM_SUSPEND_STANDBY:
default:
continue;
Index: linux-pm/drivers/acpi/sleep.c
===================================================================
--- linux-pm.orig/drivers/acpi/sleep.c
+++ linux-pm/drivers/acpi/sleep.c
@@ -719,7 +719,7 @@ static int lps0_device_attach(struct acp
* suspend mode was not set from the command line.
*/
if (mem_sleep_default > PM_SUSPEND_MEM)
- mem_sleep_current = PM_SUSPEND_FREEZE;
+ mem_sleep_current = PM_SUSPEND_S2IDLE;
}
acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n",
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 2/4] PM / s2idle: Rename freeze_state enum and related items
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-05 12:56 ` [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE Rafael J. Wysocki
@ 2017-08-05 12:58 ` Rafael J. Wysocki
2017-08-05 12:59 ` [PATCH 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
` (2 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-05 12:58 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename the freeze_state enum representing the suspend-to-idle state
machine states to s2idle_states and rename the related variables and
functions accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/base/power/wakeup.c | 2 -
include/linux/suspend.h | 20 +++++++++---------
kernel/power/suspend.c | 48 ++++++++++++++++++++++----------------------
kernel/sched/idle.c | 6 ++---
4 files changed, 38 insertions(+), 38 deletions(-)
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -57,10 +57,10 @@ EXPORT_SYMBOL_GPL(pm_suspend_global_flag
static const struct platform_suspend_ops *suspend_ops;
static const struct platform_freeze_ops *freeze_ops;
-static DECLARE_WAIT_QUEUE_HEAD(suspend_freeze_wait_head);
+static DECLARE_WAIT_QUEUE_HEAD(s2idle_wait_head);
-enum freeze_state __read_mostly suspend_freeze_state;
-static DEFINE_SPINLOCK(suspend_freeze_lock);
+enum s2idle_states __read_mostly s2idle_state;
+static DEFINE_SPINLOCK(s2idle_lock);
void freeze_set_ops(const struct platform_freeze_ops *ops)
{
@@ -69,21 +69,21 @@ void freeze_set_ops(const struct platfor
unlock_system_sleep();
}
-static void freeze_begin(void)
+static void s2idle_begin(void)
{
- suspend_freeze_state = FREEZE_STATE_NONE;
+ s2idle_state = S2IDLE_STATE_NONE;
}
-static void freeze_enter(void)
+static void s2idle_enter(void)
{
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_S2IDLE, true);
- spin_lock_irq(&suspend_freeze_lock);
+ spin_lock_irq(&s2idle_lock);
if (pm_wakeup_pending())
goto out;
- suspend_freeze_state = FREEZE_STATE_ENTER;
- spin_unlock_irq(&suspend_freeze_lock);
+ s2idle_state = S2IDLE_STATE_ENTER;
+ spin_unlock_irq(&s2idle_lock);
get_online_cpus();
cpuidle_resume();
@@ -91,17 +91,17 @@ static void freeze_enter(void)
/* Push all the CPUs into the idle loop. */
wake_up_all_idle_cpus();
/* Make the current CPU wait so it can enter the idle loop too. */
- wait_event(suspend_freeze_wait_head,
- suspend_freeze_state == FREEZE_STATE_WAKE);
+ wait_event(s2idle_wait_head,
+ s2idle_state == S2IDLE_STATE_WAKE);
cpuidle_pause();
put_online_cpus();
- spin_lock_irq(&suspend_freeze_lock);
+ spin_lock_irq(&s2idle_lock);
out:
- suspend_freeze_state = FREEZE_STATE_NONE;
- spin_unlock_irq(&suspend_freeze_lock);
+ s2idle_state = S2IDLE_STATE_NONE;
+ spin_unlock_irq(&s2idle_lock);
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_S2IDLE, false);
}
@@ -118,12 +118,12 @@ static void s2idle_loop(void)
/*
* Suspend-to-idle equals
* frozen processes + suspended devices + idle processors.
- * Thus freeze_enter() should be called right after
+ * Thus s2idle_enter() should be called right after
* all devices have been suspended.
*/
error = dpm_noirq_suspend_devices(PMSG_SUSPEND);
if (!error)
- freeze_enter();
+ s2idle_enter();
dpm_noirq_resume_devices(PMSG_RESUME);
if (error && (error != -EBUSY || !pm_wakeup_pending())) {
@@ -148,18 +148,18 @@ static void s2idle_loop(void)
pm_pr_dbg("resume from suspend-to-idle\n");
}
-void freeze_wake(void)
+void s2idle_wake(void)
{
unsigned long flags;
- spin_lock_irqsave(&suspend_freeze_lock, flags);
- if (suspend_freeze_state > FREEZE_STATE_NONE) {
- suspend_freeze_state = FREEZE_STATE_WAKE;
- wake_up(&suspend_freeze_wait_head);
+ spin_lock_irqsave(&s2idle_lock, flags);
+ if (s2idle_state > S2IDLE_STATE_NONE) {
+ s2idle_state = S2IDLE_STATE_WAKE;
+ wake_up(&s2idle_wait_head);
}
- spin_unlock_irqrestore(&suspend_freeze_lock, flags);
+ spin_unlock_irqrestore(&s2idle_lock, flags);
}
-EXPORT_SYMBOL_GPL(freeze_wake);
+EXPORT_SYMBOL_GPL(s2idle_wake);
static bool valid_state(suspend_state_t state)
{
@@ -552,7 +552,7 @@ static int enter_state(suspend_state_t s
return -EBUSY;
if (state == PM_SUSPEND_S2IDLE)
- freeze_begin();
+ s2idle_begin();
#ifndef CONFIG_SUSPEND_SKIP_SYNC
trace_suspend_resume(TPS("sync_filesystems"), 0, true);
Index: linux-pm/kernel/sched/idle.c
===================================================================
--- linux-pm.orig/kernel/sched/idle.c
+++ linux-pm/kernel/sched/idle.c
@@ -158,7 +158,7 @@ static void cpuidle_idle_call(void)
}
/*
- * Suspend-to-idle ("freeze") is a system state in which all user space
+ * Suspend-to-idle ("s2idle") is a system state in which all user space
* has been frozen, all I/O devices have been suspended and the only
* activity happens here and in iterrupts (if any). In that case bypass
* the cpuidle governor and go stratight for the deepest idle state
@@ -167,8 +167,8 @@ static void cpuidle_idle_call(void)
* until a proper wakeup interrupt happens.
*/
- if (idle_should_freeze() || dev->use_deepest_state) {
- if (idle_should_freeze()) {
+ if (idle_should_enter_s2idle() || dev->use_deepest_state) {
+ if (idle_should_enter_s2idle()) {
entered_state = cpuidle_enter_freeze(drv, dev);
if (entered_state > 0) {
local_irq_enable();
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -237,22 +237,22 @@ static inline bool pm_resume_via_firmwar
}
/* Suspend-to-idle state machnine. */
-enum freeze_state {
- FREEZE_STATE_NONE, /* Not suspended/suspending. */
- FREEZE_STATE_ENTER, /* Enter suspend-to-idle. */
- FREEZE_STATE_WAKE, /* Wake up from suspend-to-idle. */
+enum s2idle_states {
+ S2IDLE_STATE_NONE, /* Not suspended/suspending. */
+ S2IDLE_STATE_ENTER, /* Enter suspend-to-idle. */
+ S2IDLE_STATE_WAKE, /* Wake up from suspend-to-idle. */
};
-extern enum freeze_state __read_mostly suspend_freeze_state;
+extern enum s2idle_states __read_mostly s2idle_state;
-static inline bool idle_should_freeze(void)
+static inline bool idle_should_enter_s2idle(void)
{
- return unlikely(suspend_freeze_state == FREEZE_STATE_ENTER);
+ return unlikely(s2idle_state == S2IDLE_STATE_ENTER);
}
extern void __init pm_states_init(void);
extern void freeze_set_ops(const struct platform_freeze_ops *ops);
-extern void freeze_wake(void);
+extern void s2idle_wake(void);
/**
* arch_suspend_disable_irqs - disable IRQs for suspend
@@ -284,10 +284,10 @@ static inline bool pm_resume_via_firmwar
static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
-static inline bool idle_should_freeze(void) { return false; }
+static inline bool idle_should_enter_s2idle(void) { return false; }
static inline void __init pm_states_init(void) {}
static inline void freeze_set_ops(const struct platform_freeze_ops *ops) {}
-static inline void freeze_wake(void) {}
+static inline void s2idle_wake(void) {}
#endif /* !CONFIG_SUSPEND */
/* struct pbe is used for creating lists of pages that should be restored
Index: linux-pm/drivers/base/power/wakeup.c
===================================================================
--- linux-pm.orig/drivers/base/power/wakeup.c
+++ linux-pm/drivers/base/power/wakeup.c
@@ -863,7 +863,7 @@ bool pm_wakeup_pending(void)
void pm_system_wakeup(void)
{
atomic_inc(&pm_abort_suspend);
- freeze_wake();
+ s2idle_wake();
}
EXPORT_SYMBOL_GPL(pm_system_wakeup);
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-05 12:56 ` [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE Rafael J. Wysocki
2017-08-05 12:58 ` [PATCH 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
@ 2017-08-05 12:59 ` Rafael J. Wysocki
2017-08-05 13:00 ` [PATCH 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
4 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-05 12:59 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename the ->enter_freeze cpuidle driver callback to ->enter_s2idle
to make it clear that it is used for entering suspend-to-idle and
rename the related functions, variables and so on accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
arch/arm/mach-tegra/cpuidle-tegra114.c | 4
drivers/acpi/processor_idle.c | 6 -
drivers/cpuidle/cpuidle.c | 18 +--
drivers/cpuidle/dt_idle_states.c | 4
drivers/idle/intel_idle.c | 180 ++++++++++++++++-----------------
include/linux/cpuidle.h | 8 -
kernel/sched/idle.c | 2
7 files changed, 111 insertions(+), 111 deletions(-)
Index: linux-pm/include/linux/cpuidle.h
===================================================================
--- linux-pm.orig/include/linux/cpuidle.h
+++ linux-pm/include/linux/cpuidle.h
@@ -52,11 +52,11 @@ struct cpuidle_state {
int (*enter_dead) (struct cpuidle_device *dev, int index);
/*
- * CPUs execute ->enter_freeze with the local tick or entire timekeeping
+ * CPUs execute ->enter_s2idle with the local tick or entire timekeeping
* suspended, so it must not re-enable interrupts at any point (even
* temporarily) or attempt to change states of clock event devices.
*/
- void (*enter_freeze) (struct cpuidle_device *dev,
+ void (*enter_s2idle) (struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
};
@@ -197,14 +197,14 @@ static inline struct cpuidle_device *cpu
#ifdef CONFIG_CPU_IDLE
extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev);
-extern int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+extern int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev);
extern void cpuidle_use_deepest_state(bool enable);
#else
static inline int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
-static inline int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+static inline int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
static inline void cpuidle_use_deepest_state(bool enable)
Index: linux-pm/drivers/cpuidle/cpuidle.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/cpuidle.c
+++ linux-pm/drivers/cpuidle/cpuidle.c
@@ -77,7 +77,7 @@ static int find_deepest_state(struct cpu
struct cpuidle_device *dev,
unsigned int max_latency,
unsigned int forbidden_flags,
- bool freeze)
+ bool s2idle)
{
unsigned int latency_req = 0;
int i, ret = 0;
@@ -89,7 +89,7 @@ static int find_deepest_state(struct cpu
if (s->disabled || su->disable || s->exit_latency <= latency_req
|| s->exit_latency > max_latency
|| (s->flags & forbidden_flags)
- || (freeze && !s->enter_freeze))
+ || (s2idle && !s->enter_s2idle))
continue;
latency_req = s->exit_latency;
@@ -128,7 +128,7 @@ int cpuidle_find_deepest_state(struct cp
}
#ifdef CONFIG_SUSPEND
-static void enter_freeze_proper(struct cpuidle_driver *drv,
+static void enter_s2idle_proper(struct cpuidle_driver *drv,
struct cpuidle_device *dev, int index)
{
/*
@@ -143,7 +143,7 @@ static void enter_freeze_proper(struct c
* suspended is generally unsafe.
*/
stop_critical_timings();
- drv->states[index].enter_freeze(dev, drv, index);
+ drv->states[index].enter_s2idle(dev, drv, index);
WARN_ON(!irqs_disabled());
/*
* timekeeping_resume() that will be called by tick_unfreeze() for the
@@ -155,25 +155,25 @@ static void enter_freeze_proper(struct c
}
/**
- * cpuidle_enter_freeze - Enter an idle state suitable for suspend-to-idle.
+ * cpuidle_enter_s2idle - Enter an idle state suitable for suspend-to-idle.
* @drv: cpuidle driver for the given CPU.
* @dev: cpuidle device for the given CPU.
*
- * If there are states with the ->enter_freeze callback, find the deepest of
+ * If there are states with the ->enter_s2idle callback, find the deepest of
* them and enter it with frozen tick.
*/
-int cpuidle_enter_freeze(struct cpuidle_driver *drv, struct cpuidle_device *dev)
+int cpuidle_enter_s2idle(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
int index;
/*
- * Find the deepest state with ->enter_freeze present, which guarantees
+ * Find the deepest state with ->enter_s2idle present, which guarantees
* that interrupts won't be enabled when it exits and allows the tick to
* be frozen safely.
*/
index = find_deepest_state(drv, dev, UINT_MAX, 0, true);
if (index > 0)
- enter_freeze_proper(drv, dev, index);
+ enter_s2idle_proper(drv, dev, index);
return index;
}
Index: linux-pm/kernel/sched/idle.c
===================================================================
--- linux-pm.orig/kernel/sched/idle.c
+++ linux-pm/kernel/sched/idle.c
@@ -169,7 +169,7 @@ static void cpuidle_idle_call(void)
if (idle_should_enter_s2idle() || dev->use_deepest_state) {
if (idle_should_enter_s2idle()) {
- entered_state = cpuidle_enter_freeze(drv, dev);
+ entered_state = cpuidle_enter_s2idle(drv, dev);
if (entered_state > 0) {
local_irq_enable();
goto exit_idle;
Index: linux-pm/drivers/idle/intel_idle.c
===================================================================
--- linux-pm.orig/drivers/idle/intel_idle.c
+++ linux-pm/drivers/idle/intel_idle.c
@@ -97,7 +97,7 @@ static const struct idle_cpu *icpu;
static struct cpuidle_device __percpu *intel_idle_cpuidle_devices;
static int intel_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
-static void intel_idle_freeze(struct cpuidle_device *dev,
+static void intel_idle_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
static struct cpuidle_state *cpuidle_state_table;
@@ -132,7 +132,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 3,
.target_residency = 6,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -140,7 +140,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -148,7 +148,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 20,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -156,7 +156,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 200,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -169,7 +169,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -177,7 +177,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -185,7 +185,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 80,
.target_residency = 211,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -193,7 +193,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 104,
.target_residency = 345,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x30",
@@ -201,7 +201,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 109,
.target_residency = 345,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -214,7 +214,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6N",
.desc = "MWAIT 0x58",
@@ -222,7 +222,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 300,
.target_residency = 275,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6S",
.desc = "MWAIT 0x52",
@@ -230,7 +230,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 500,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -238,7 +238,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7S",
.desc = "MWAIT 0x64",
@@ -246,7 +246,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -259,7 +259,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6N",
.desc = "MWAIT 0x58",
@@ -267,7 +267,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 80,
.target_residency = 275,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6S",
.desc = "MWAIT 0x52",
@@ -275,7 +275,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 200,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -283,7 +283,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7S",
.desc = "MWAIT 0x64",
@@ -291,7 +291,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -304,7 +304,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -312,7 +312,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -320,7 +320,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 59,
.target_residency = 156,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -328,7 +328,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 80,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x30",
@@ -336,7 +336,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 87,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -349,7 +349,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -357,7 +357,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 10,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -365,7 +365,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 59,
.target_residency = 156,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -373,7 +373,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 82,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -386,7 +386,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -394,7 +394,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 10,
.target_residency = 250,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -402,7 +402,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 59,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -410,7 +410,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 84,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -423,7 +423,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -431,7 +431,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 10,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -439,7 +439,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 59,
.target_residency = 600,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -447,7 +447,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 88,
.target_residency = 700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -460,7 +460,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -468,7 +468,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -476,7 +476,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 33,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -484,7 +484,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 133,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x32",
@@ -492,7 +492,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 166,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -500,7 +500,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 300,
.target_residency = 900,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -508,7 +508,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 600,
.target_residency = 1800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -516,7 +516,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 2600,
.target_residency = 7700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -528,7 +528,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -536,7 +536,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -544,7 +544,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 40,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -552,7 +552,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 133,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x32",
@@ -560,7 +560,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 166,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -568,7 +568,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 300,
.target_residency = 900,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -576,7 +576,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 600,
.target_residency = 1800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -584,7 +584,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 2600,
.target_residency = 7700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -597,7 +597,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -605,7 +605,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -613,7 +613,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 70,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -621,7 +621,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 85,
.target_residency = 200,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x33",
@@ -629,7 +629,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 124,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -637,7 +637,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 200,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -645,7 +645,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 480,
.target_residency = 5000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -653,7 +653,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 890,
.target_residency = 5000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -666,7 +666,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -674,7 +674,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -682,7 +682,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 133,
.target_residency = 600,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -695,7 +695,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C2",
.desc = "MWAIT 0x10",
@@ -703,7 +703,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 20,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C4",
.desc = "MWAIT 0x30",
@@ -711,7 +711,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 100,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x52",
@@ -719,7 +719,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 140,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -731,7 +731,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 1,
.target_residency = 4,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C4",
.desc = "MWAIT 0x30",
@@ -739,7 +739,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 100,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x52",
@@ -747,7 +747,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 140,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -755,7 +755,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x64",
@@ -763,7 +763,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -775,7 +775,7 @@ static struct cpuidle_state avn_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x51",
@@ -783,7 +783,7 @@ static struct cpuidle_state avn_cstates[
.exit_latency = 15,
.target_residency = 45,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -795,7 +795,7 @@ static struct cpuidle_state knl_cstates[
.exit_latency = 1,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze },
+ .enter_s2idle = intel_idle_s2idle },
{
.name = "C6",
.desc = "MWAIT 0x10",
@@ -803,7 +803,7 @@ static struct cpuidle_state knl_cstates[
.exit_latency = 120,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze },
+ .enter_s2idle = intel_idle_s2idle },
{
.enter = NULL }
};
@@ -816,7 +816,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -824,7 +824,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -832,7 +832,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 133,
.target_residency = 133,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x31",
@@ -840,7 +840,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 155,
.target_residency = 155,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -848,7 +848,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 1000,
.target_residency = 1000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -856,7 +856,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 2000,
.target_residency = 2000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -864,7 +864,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 10000,
.target_residency = 10000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -877,7 +877,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -885,7 +885,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -893,7 +893,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 50,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -936,12 +936,12 @@ static __cpuidle int intel_idle(struct c
}
/**
- * intel_idle_freeze - simplified "enter" callback routine for suspend-to-idle
+ * intel_idle_s2idle - simplified "enter" callback routine for suspend-to-idle
* @dev: cpuidle_device
* @drv: cpuidle driver
* @index: state index
*/
-static void intel_idle_freeze(struct cpuidle_device *dev,
+static void intel_idle_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
unsigned long ecx = 1; /* break on interrupt flag */
@@ -1337,7 +1337,7 @@ static void __init intel_idle_cpuidle_dr
int num_substates, mwait_hint, mwait_cstate;
if ((cpuidle_state_table[cstate].enter == NULL) &&
- (cpuidle_state_table[cstate].enter_freeze == NULL))
+ (cpuidle_state_table[cstate].enter_s2idle == NULL))
break;
if (cstate + 1 > max_cstate) {
Index: linux-pm/drivers/acpi/processor_idle.c
===================================================================
--- linux-pm.orig/drivers/acpi/processor_idle.c
+++ linux-pm/drivers/acpi/processor_idle.c
@@ -789,7 +789,7 @@ static int acpi_idle_enter(struct cpuidl
return index;
}
-static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
+static void acpi_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu);
@@ -867,14 +867,14 @@ static int acpi_processor_setup_cstates(
drv->safe_state_index = count;
}
/*
- * Halt-induced C1 is not good for ->enter_freeze, because it
+ * Halt-induced C1 is not good for ->enter_s2idle, because it
* re-enables interrupts on exit. Moreover, C1 is generally not
* particularly interesting from the suspend-to-idle angle, so
* avoid C1 and the situations in which we may need to fall back
* to it altogether.
*/
if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))
- state->enter_freeze = acpi_idle_enter_freeze;
+ state->enter_s2idle = acpi_idle_enter_s2idle;
count++;
if (count == CPUIDLE_STATE_MAX)
Index: linux-pm/drivers/cpuidle/dt_idle_states.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/dt_idle_states.c
+++ linux-pm/drivers/cpuidle/dt_idle_states.c
@@ -41,9 +41,9 @@ static int init_state_node(struct cpuidl
/*
* Since this is not a "coupled" state, it's safe to assume interrupts
* won't be enabled when it exits allowing the tick to be frozen
- * safely. So enter() can be also enter_freeze() callback.
+ * safely. So enter() can be also enter_s2idle() callback.
*/
- idle_state->enter_freeze = match_id->data;
+ idle_state->enter_s2idle = match_id->data;
err = of_property_read_u32(state_node, "wakeup-latency-us",
&idle_state->exit_latency);
Index: linux-pm/arch/arm/mach-tegra/cpuidle-tegra114.c
===================================================================
--- linux-pm.orig/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ linux-pm/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -60,7 +60,7 @@ static int tegra114_idle_power_down(stru
return index;
}
-static void tegra114_idle_enter_freeze(struct cpuidle_device *dev,
+static void tegra114_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
@@ -77,7 +77,7 @@ static struct cpuidle_driver tegra_idle_
#ifdef CONFIG_PM_SLEEP
[1] = {
.enter = tegra114_idle_power_down,
- .enter_freeze = tegra114_idle_enter_freeze,
+ .enter_s2idle = tegra114_idle_enter_s2idle,
.exit_latency = 500,
.target_residency = 1000,
.flags = CPUIDLE_FLAG_TIMER_STOP,
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH 4/4] PM / s2idle: Rename platform operations structure
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
` (2 preceding siblings ...)
2017-08-05 12:59 ` [PATCH 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
@ 2017-08-05 13:00 ` Rafael J. Wysocki
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
4 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-05 13:00 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename struct platform_freeze_ops to platform_s2idle_ops to make it
clear that the callbacks in it are used during suspend-to-idle
suspend/resume transitions and rename the related functions,
variables and so on accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/sleep.c | 28 ++++++++++++++--------------
include/linux/suspend.h | 6 +++---
kernel/power/suspend.c | 30 +++++++++++++++---------------
3 files changed, 32 insertions(+), 32 deletions(-)
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -186,7 +186,7 @@ struct platform_suspend_ops {
void (*recover)(void);
};
-struct platform_freeze_ops {
+struct platform_s2idle_ops {
int (*begin)(void);
int (*prepare)(void);
void (*wake)(void);
@@ -251,7 +251,7 @@ static inline bool idle_should_enter_s2i
}
extern void __init pm_states_init(void);
-extern void freeze_set_ops(const struct platform_freeze_ops *ops);
+extern void s2idle_set_ops(const struct platform_s2idle_ops *ops);
extern void s2idle_wake(void);
/**
@@ -286,7 +286,7 @@ static inline void suspend_set_ops(const
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
static inline bool idle_should_enter_s2idle(void) { return false; }
static inline void __init pm_states_init(void) {}
-static inline void freeze_set_ops(const struct platform_freeze_ops *ops) {}
+static inline void s2idle_set_ops(const struct platform_s2idle_ops *ops) {}
static inline void s2idle_wake(void) {}
#endif /* !CONFIG_SUSPEND */
Index: linux-pm/drivers/acpi/sleep.c
===================================================================
--- linux-pm.orig/drivers/acpi/sleep.c
+++ linux-pm/drivers/acpi/sleep.c
@@ -737,14 +737,14 @@ static struct acpi_scan_handler lps0_han
.attach = lps0_device_attach,
};
-static int acpi_freeze_begin(void)
+static int acpi_s2idle_begin(void)
{
acpi_scan_lock_acquire();
s2idle_in_progress = true;
return 0;
}
-static int acpi_freeze_prepare(void)
+static int acpi_s2idle_prepare(void)
{
if (lps0_device_handle) {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF);
@@ -764,7 +764,7 @@ static int acpi_freeze_prepare(void)
return 0;
}
-static void acpi_freeze_wake(void)
+static void acpi_s2idle_wake(void)
{
/*
* If IRQD_WAKEUP_ARMED is not set for the SCI at this point, it means
@@ -778,7 +778,7 @@ static void acpi_freeze_wake(void)
}
}
-static void acpi_freeze_sync(void)
+static void acpi_s2idle_sync(void)
{
/*
* Process all pending events in case there are any wakeup ones.
@@ -791,7 +791,7 @@ static void acpi_freeze_sync(void)
s2idle_wakeup = false;
}
-static void acpi_freeze_restore(void)
+static void acpi_s2idle_restore(void)
{
if (acpi_sci_irq_valid())
disable_irq_wake(acpi_sci_irq);
@@ -804,19 +804,19 @@ static void acpi_freeze_restore(void)
}
}
-static void acpi_freeze_end(void)
+static void acpi_s2idle_end(void)
{
s2idle_in_progress = false;
acpi_scan_lock_release();
}
-static const struct platform_freeze_ops acpi_freeze_ops = {
- .begin = acpi_freeze_begin,
- .prepare = acpi_freeze_prepare,
- .wake = acpi_freeze_wake,
- .sync = acpi_freeze_sync,
- .restore = acpi_freeze_restore,
- .end = acpi_freeze_end,
+static const struct platform_s2idle_ops acpi_s2idle_ops = {
+ .begin = acpi_s2idle_begin,
+ .prepare = acpi_s2idle_prepare,
+ .wake = acpi_s2idle_wake,
+ .sync = acpi_s2idle_sync,
+ .restore = acpi_s2idle_restore,
+ .end = acpi_s2idle_end,
};
static void acpi_sleep_suspend_setup(void)
@@ -831,7 +831,7 @@ static void acpi_sleep_suspend_setup(voi
&acpi_suspend_ops_old : &acpi_suspend_ops);
acpi_scan_add_handler(&lps0_handler);
- freeze_set_ops(&acpi_freeze_ops);
+ s2idle_set_ops(&acpi_s2idle_ops);
}
#else /* !CONFIG_SUSPEND */
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -56,16 +56,16 @@ unsigned int pm_suspend_global_flags;
EXPORT_SYMBOL_GPL(pm_suspend_global_flags);
static const struct platform_suspend_ops *suspend_ops;
-static const struct platform_freeze_ops *freeze_ops;
+static const struct platform_s2idle_ops *s2idle_ops;
static DECLARE_WAIT_QUEUE_HEAD(s2idle_wait_head);
enum s2idle_states __read_mostly s2idle_state;
static DEFINE_SPINLOCK(s2idle_lock);
-void freeze_set_ops(const struct platform_freeze_ops *ops)
+void s2idle_set_ops(const struct platform_s2idle_ops *ops)
{
lock_system_sleep();
- freeze_ops = ops;
+ s2idle_ops = ops;
unlock_system_sleep();
}
@@ -131,13 +131,13 @@ static void s2idle_loop(void)
break;
}
- if (freeze_ops && freeze_ops->wake)
- freeze_ops->wake();
+ if (s2idle_ops && s2idle_ops->wake)
+ s2idle_ops->wake();
dpm_noirq_end();
- if (freeze_ops && freeze_ops->sync)
- freeze_ops->sync();
+ if (s2idle_ops && s2idle_ops->sync)
+ s2idle_ops->sync();
if (pm_wakeup_pending())
break;
@@ -250,8 +250,8 @@ static int platform_suspend_prepare(susp
static int platform_suspend_prepare_late(suspend_state_t state)
{
- return state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->prepare ?
- freeze_ops->prepare() : 0;
+ return state == PM_SUSPEND_S2IDLE && s2idle_ops && s2idle_ops->prepare ?
+ s2idle_ops->prepare() : 0;
}
static int platform_suspend_prepare_noirq(suspend_state_t state)
@@ -268,8 +268,8 @@ static void platform_resume_noirq(suspen
static void platform_resume_early(suspend_state_t state)
{
- if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->restore)
- freeze_ops->restore();
+ if (state == PM_SUSPEND_S2IDLE && s2idle_ops && s2idle_ops->restore)
+ s2idle_ops->restore();
}
static void platform_resume_finish(suspend_state_t state)
@@ -280,8 +280,8 @@ static void platform_resume_finish(suspe
static int platform_suspend_begin(suspend_state_t state)
{
- if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->begin)
- return freeze_ops->begin();
+ if (state == PM_SUSPEND_S2IDLE && s2idle_ops && s2idle_ops->begin)
+ return s2idle_ops->begin();
else if (suspend_ops && suspend_ops->begin)
return suspend_ops->begin(state);
else
@@ -290,8 +290,8 @@ static int platform_suspend_begin(suspen
static void platform_resume_end(suspend_state_t state)
{
- if (state == PM_SUSPEND_S2IDLE && freeze_ops && freeze_ops->end)
- freeze_ops->end();
+ if (state == PM_SUSPEND_S2IDLE && s2idle_ops && s2idle_ops->end)
+ s2idle_ops->end();
else if (suspend_ops && suspend_ops->end)
suspend_ops->end();
}
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE
2017-08-05 12:56 ` [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE Rafael J. Wysocki
@ 2017-08-07 8:49 ` Peter Zijlstra
2017-08-07 11:57 ` Rafael J. Wysocki
0 siblings, 1 reply; 13+ messages in thread
From: Peter Zijlstra @ 2017-08-07 8:49 UTC (permalink / raw)
To: Rafael J. Wysocki
Cc: Linux PM, LKML, Linux ACPI, Thomas Gleixner, Srinivas Pandruvada,
Jacob Pan, Len Brown, Daniel Lezcano
On Sat, Aug 05, 2017 at 02:56:43PM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> To make it clear that the symbol in question refers to
> suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
> PM_SUSPEND_S2IDLE.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> drivers/acpi/sleep.c | 2 -
> drivers/regulator/of_regulator.c | 2 -
> include/linux/suspend.h | 4 +--
> kernel/power/suspend.c | 44 +++++++++++++++++++--------------------
> kernel/power/suspend_test.c | 4 +--
> 5 files changed, 28 insertions(+), 28 deletions(-)
>
> Index: linux-pm/include/linux/suspend.h
> ===================================================================
> --- linux-pm.orig/include/linux/suspend.h
> +++ linux-pm/include/linux/suspend.h
> @@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
> typedef int __bitwise suspend_state_t;
>
> #define PM_SUSPEND_ON ((__force suspend_state_t) 0)
> -#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1)
> +#define PM_SUSPEND_S2IDLE ((__force suspend_state_t) 1)
> #define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2)
> #define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
I feel something like PM_SUSPEND_IDLE is more consistent with the
existing PM_SUSPEND_MEM. Also the proposed PM_SUSPEND_S2IDLE has
'SUSPEND' in it twice, so at the very least it should be
PM_SUSPEND_2IDLE :-)
> -#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE
> +#define PM_SUSPEND_MIN PM_SUSPEND_S2IDLE
> #define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE
2017-08-07 8:49 ` Peter Zijlstra
@ 2017-08-07 11:57 ` Rafael J. Wysocki
2017-08-07 12:00 ` Rafael J. Wysocki
0 siblings, 1 reply; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-07 11:57 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Rafael J. Wysocki, Linux PM, LKML, Linux ACPI, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
On Mon, Aug 7, 2017 at 10:49 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Sat, Aug 05, 2017 at 02:56:43PM +0200, Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>
>> To make it clear that the symbol in question refers to
>> suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
>> PM_SUSPEND_S2IDLE.
>>
>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>> ---
>> drivers/acpi/sleep.c | 2 -
>> drivers/regulator/of_regulator.c | 2 -
>> include/linux/suspend.h | 4 +--
>> kernel/power/suspend.c | 44 +++++++++++++++++++--------------------
>> kernel/power/suspend_test.c | 4 +--
>> 5 files changed, 28 insertions(+), 28 deletions(-)
>>
>> Index: linux-pm/include/linux/suspend.h
>> ===================================================================
>> --- linux-pm.orig/include/linux/suspend.h
>> +++ linux-pm/include/linux/suspend.h
>> @@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
>> typedef int __bitwise suspend_state_t;
>>
>> #define PM_SUSPEND_ON ((__force suspend_state_t) 0)
>> -#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1)
>> +#define PM_SUSPEND_S2IDLE ((__force suspend_state_t) 1)
>> #define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2)
>> #define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
>
> I feel something like PM_SUSPEND_IDLE is more consistent with the
> existing PM_SUSPEND_MEM. Also the proposed PM_SUSPEND_S2IDLE has
> 'SUSPEND' in it twice, so at the very least it should be
> PM_SUSPEND_2IDLE :-)
>
>
>> -#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE
>> +#define PM_SUSPEND_MIN PM_SUSPEND_S2IDLE
>> #define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
OK, I can call it PM_SUSPEND_IDLE no problem.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE
2017-08-07 11:57 ` Rafael J. Wysocki
@ 2017-08-07 12:00 ` Rafael J. Wysocki
0 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-07 12:00 UTC (permalink / raw)
To: Rafael J. Wysocki
Cc: Peter Zijlstra, Rafael J. Wysocki, Linux PM, LKML, Linux ACPI,
Thomas Gleixner, Srinivas Pandruvada, Jacob Pan, Len Brown,
Daniel Lezcano
On Mon, Aug 7, 2017 at 1:57 PM, Rafael J. Wysocki <rafael@kernel.org> wrote:
> On Mon, Aug 7, 2017 at 10:49 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>> On Sat, Aug 05, 2017 at 02:56:43PM +0200, Rafael J. Wysocki wrote:
>>> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>>
>>> To make it clear that the symbol in question refers to
>>> suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
>>> PM_SUSPEND_S2IDLE.
>>>
>>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>> ---
>>> drivers/acpi/sleep.c | 2 -
>>> drivers/regulator/of_regulator.c | 2 -
>>> include/linux/suspend.h | 4 +--
>>> kernel/power/suspend.c | 44 +++++++++++++++++++--------------------
>>> kernel/power/suspend_test.c | 4 +--
>>> 5 files changed, 28 insertions(+), 28 deletions(-)
>>>
>>> Index: linux-pm/include/linux/suspend.h
>>> ===================================================================
>>> --- linux-pm.orig/include/linux/suspend.h
>>> +++ linux-pm/include/linux/suspend.h
>>> @@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
>>> typedef int __bitwise suspend_state_t;
>>>
>>> #define PM_SUSPEND_ON ((__force suspend_state_t) 0)
>>> -#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1)
>>> +#define PM_SUSPEND_S2IDLE ((__force suspend_state_t) 1)
>>> #define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2)
>>> #define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
>>
>> I feel something like PM_SUSPEND_IDLE is more consistent with the
>> existing PM_SUSPEND_MEM. Also the proposed PM_SUSPEND_S2IDLE has
>> 'SUSPEND' in it twice, so at the very least it should be
>> PM_SUSPEND_2IDLE :-)
>>
>>
>>> -#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE
>>> +#define PM_SUSPEND_MIN PM_SUSPEND_S2IDLE
>>> #define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
>
> OK, I can call it PM_SUSPEND_IDLE no problem.
Actually, I'm thinking that PM_SUSPEND_TO_IDLE may be even better ...
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
` (3 preceding siblings ...)
2017-08-05 13:00 ` [PATCH 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
@ 2017-08-09 22:11 ` Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE Rafael J. Wysocki
` (3 more replies)
4 siblings, 4 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-09 22:11 UTC (permalink / raw)
To: Linux PM
Cc: Rafael J. Wysocki, LKML, Linux ACPI, Peter Zijlstra,
Thomas Gleixner, Srinivas Pandruvada, Jacob Pan, Len Brown,
Daniel Lezcano
On Saturday, August 5, 2017 2:55:34 PM CEST Rafael J. Wysocki wrote:
> Hi Everyone,
>
> The term "suspend-to-idle" (and its short form "s2idle") was invented after
> introducing support for the system state it refers to. At that time, the
> feature was called "freeze", kind of for the lack of a better idea how to
> call it.
>
> It would not be a problem if it wasn't confusing, but alas it is. The word
> "freeze" is quite heavily loaded in the PM terminology. It is related to
> the freezing of tasks, the freezing of filesystems (which isn't only used
> for PM for that matter), and one of the phases of handling devices during
> hibernation (and during resume from it) is called "freeze", which is reflected
> in the names of PM callbacks used by it.
>
> To avoid that confusion, the following patches change the names of various
> items related to suspend-to-idle by replacing the word "freeze" in them
> with "s2idle".
>
> The series is on top of current linux-next.
The v2 addresses the comment from Peter that PM_SUSPEND_S2IDLE had too many
"suspends" in it, so it is now replaced with PM_SUSPEND_TO_IDLE. No other
changes.
Thanks,
Rafael
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
@ 2017-08-09 22:13 ` Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
` (2 subsequent siblings)
3 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-09 22:13 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
To make it clear that the symbol in question refers to
suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
PM_SUSPEND_TO_IDLE.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/sleep.c | 2 -
drivers/regulator/of_regulator.c | 2 -
include/linux/suspend.h | 4 +--
kernel/power/suspend.c | 44 +++++++++++++++++++--------------------
kernel/power/suspend_test.c | 4 +--
5 files changed, 28 insertions(+), 28 deletions(-)
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
typedef int __bitwise suspend_state_t;
#define PM_SUSPEND_ON ((__force suspend_state_t) 0)
-#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1)
+#define PM_SUSPEND_TO_IDLE ((__force suspend_state_t) 1)
#define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2)
#define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
-#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE
+#define PM_SUSPEND_MIN PM_SUSPEND_TO_IDLE
#define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
enum suspend_stat_step {
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -35,19 +35,19 @@
#include "power.h"
const char * const pm_labels[] = {
- [PM_SUSPEND_FREEZE] = "freeze",
+ [PM_SUSPEND_TO_IDLE] = "freeze",
[PM_SUSPEND_STANDBY] = "standby",
[PM_SUSPEND_MEM] = "mem",
};
const char *pm_states[PM_SUSPEND_MAX];
static const char * const mem_sleep_labels[] = {
- [PM_SUSPEND_FREEZE] = "s2idle",
+ [PM_SUSPEND_TO_IDLE] = "s2idle",
[PM_SUSPEND_STANDBY] = "shallow",
[PM_SUSPEND_MEM] = "deep",
};
const char *mem_sleep_states[PM_SUSPEND_MAX];
-suspend_state_t mem_sleep_current = PM_SUSPEND_FREEZE;
+suspend_state_t mem_sleep_current = PM_SUSPEND_TO_IDLE;
suspend_state_t mem_sleep_default = PM_SUSPEND_MAX;
suspend_state_t pm_suspend_target_state;
EXPORT_SYMBOL_GPL(pm_suspend_target_state);
@@ -76,7 +76,7 @@ static void freeze_begin(void)
static void freeze_enter(void)
{
- trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, true);
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, true);
spin_lock_irq(&suspend_freeze_lock);
if (pm_wakeup_pending())
@@ -103,7 +103,7 @@ static void freeze_enter(void)
suspend_freeze_state = FREEZE_STATE_NONE;
spin_unlock_irq(&suspend_freeze_lock);
- trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_FREEZE, false);
+ trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, false);
}
static void s2idle_loop(void)
@@ -175,19 +175,19 @@ void __init pm_states_init(void)
{
/* "mem" and "freeze" are always present in /sys/power/state. */
pm_states[PM_SUSPEND_MEM] = pm_labels[PM_SUSPEND_MEM];
- pm_states[PM_SUSPEND_FREEZE] = pm_labels[PM_SUSPEND_FREEZE];
+ pm_states[PM_SUSPEND_TO_IDLE] = pm_labels[PM_SUSPEND_TO_IDLE];
/*
* Suspend-to-idle should be supported even without any suspend_ops,
* initialize mem_sleep_states[] accordingly here.
*/
- mem_sleep_states[PM_SUSPEND_FREEZE] = mem_sleep_labels[PM_SUSPEND_FREEZE];
+ mem_sleep_states[PM_SUSPEND_TO_IDLE] = mem_sleep_labels[PM_SUSPEND_TO_IDLE];
}
static int __init mem_sleep_default_setup(char *str)
{
suspend_state_t state;
- for (state = PM_SUSPEND_FREEZE; state <= PM_SUSPEND_MEM; state++)
+ for (state = PM_SUSPEND_TO_IDLE; state <= PM_SUSPEND_MEM; state++)
if (mem_sleep_labels[state] &&
!strcmp(str, mem_sleep_labels[state])) {
mem_sleep_default = state;
@@ -239,48 +239,48 @@ EXPORT_SYMBOL_GPL(suspend_valid_only_mem
static bool sleep_state_supported(suspend_state_t state)
{
- return state == PM_SUSPEND_FREEZE || (suspend_ops && suspend_ops->enter);
+ return state == PM_SUSPEND_TO_IDLE || (suspend_ops && suspend_ops->enter);
}
static int platform_suspend_prepare(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->prepare ?
+ return state != PM_SUSPEND_TO_IDLE && suspend_ops->prepare ?
suspend_ops->prepare() : 0;
}
static int platform_suspend_prepare_late(suspend_state_t state)
{
- return state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->prepare ?
+ return state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->prepare ?
freeze_ops->prepare() : 0;
}
static int platform_suspend_prepare_noirq(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->prepare_late ?
+ return state != PM_SUSPEND_TO_IDLE && suspend_ops->prepare_late ?
suspend_ops->prepare_late() : 0;
}
static void platform_resume_noirq(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->wake)
+ if (state != PM_SUSPEND_TO_IDLE && suspend_ops->wake)
suspend_ops->wake();
}
static void platform_resume_early(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->restore)
+ if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->restore)
freeze_ops->restore();
}
static void platform_resume_finish(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->finish)
+ if (state != PM_SUSPEND_TO_IDLE && suspend_ops->finish)
suspend_ops->finish();
}
static int platform_suspend_begin(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->begin)
+ if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->begin)
return freeze_ops->begin();
else if (suspend_ops && suspend_ops->begin)
return suspend_ops->begin(state);
@@ -290,7 +290,7 @@ static int platform_suspend_begin(suspen
static void platform_resume_end(suspend_state_t state)
{
- if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->end)
+ if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->end)
freeze_ops->end();
else if (suspend_ops && suspend_ops->end)
suspend_ops->end();
@@ -298,13 +298,13 @@ static void platform_resume_end(suspend_
static void platform_recover(suspend_state_t state)
{
- if (state != PM_SUSPEND_FREEZE && suspend_ops->recover)
+ if (state != PM_SUSPEND_TO_IDLE && suspend_ops->recover)
suspend_ops->recover();
}
static bool platform_suspend_again(suspend_state_t state)
{
- return state != PM_SUSPEND_FREEZE && suspend_ops->suspend_again ?
+ return state != PM_SUSPEND_TO_IDLE && suspend_ops->suspend_again ?
suspend_ops->suspend_again() : false;
}
@@ -400,7 +400,7 @@ static int suspend_enter(suspend_state_t
if (error)
goto Devices_early_resume;
- if (state == PM_SUSPEND_FREEZE && pm_test_level != TEST_PLATFORM) {
+ if (state == PM_SUSPEND_TO_IDLE && pm_test_level != TEST_PLATFORM) {
s2idle_loop();
goto Platform_early_resume;
}
@@ -538,7 +538,7 @@ static int enter_state(suspend_state_t s
int error;
trace_suspend_resume(TPS("suspend_enter"), state, true);
- if (state == PM_SUSPEND_FREEZE) {
+ if (state == PM_SUSPEND_TO_IDLE) {
#ifdef CONFIG_PM_DEBUG
if (pm_test_level != TEST_NONE && pm_test_level <= TEST_CPUS) {
pr_warn("Unsupported test mode for suspend to idle, please choose none/freezer/devices/platform.\n");
@@ -551,7 +551,7 @@ static int enter_state(suspend_state_t s
if (!mutex_trylock(&pm_mutex))
return -EBUSY;
- if (state == PM_SUSPEND_FREEZE)
+ if (state == PM_SUSPEND_TO_IDLE)
freeze_begin();
#ifndef CONFIG_SUSPEND_SKIP_SYNC
Index: linux-pm/kernel/power/suspend_test.c
===================================================================
--- linux-pm.orig/kernel/power/suspend_test.c
+++ linux-pm/kernel/power/suspend_test.c
@@ -104,9 +104,9 @@ repeat:
printk(info_test, pm_states[state]);
status = pm_suspend(state);
if (status < 0)
- state = PM_SUSPEND_FREEZE;
+ state = PM_SUSPEND_TO_IDLE;
}
- if (state == PM_SUSPEND_FREEZE) {
+ if (state == PM_SUSPEND_TO_IDLE) {
printk(info_test, pm_states[state]);
status = pm_suspend(state);
}
Index: linux-pm/drivers/regulator/of_regulator.c
===================================================================
--- linux-pm.orig/drivers/regulator/of_regulator.c
+++ linux-pm/drivers/regulator/of_regulator.c
@@ -150,7 +150,7 @@ static void of_get_regulation_constraint
suspend_state = &constraints->state_disk;
break;
case PM_SUSPEND_ON:
- case PM_SUSPEND_FREEZE:
+ case PM_SUSPEND_TO_IDLE:
case PM_SUSPEND_STANDBY:
default:
continue;
Index: linux-pm/drivers/acpi/sleep.c
===================================================================
--- linux-pm.orig/drivers/acpi/sleep.c
+++ linux-pm/drivers/acpi/sleep.c
@@ -719,7 +719,7 @@ static int lps0_device_attach(struct acp
* suspend mode was not set from the command line.
*/
if (mem_sleep_default > PM_SUSPEND_MEM)
- mem_sleep_current = PM_SUSPEND_FREEZE;
+ mem_sleep_current = PM_SUSPEND_TO_IDLE;
}
acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n",
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2 2/4] PM / s2idle: Rename freeze_state enum and related items
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE Rafael J. Wysocki
@ 2017-08-09 22:13 ` Rafael J. Wysocki
2017-08-09 22:14 ` [PATCH v2 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
2017-08-09 22:15 ` [PATCH v2 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
3 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-09 22:13 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename the freeze_state enum representing the suspend-to-idle state
machine states to s2idle_states and rename the related variables and
functions accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/base/power/wakeup.c | 2 -
include/linux/suspend.h | 20 +++++++++---------
kernel/power/suspend.c | 48 ++++++++++++++++++++++----------------------
kernel/sched/idle.c | 6 ++---
4 files changed, 38 insertions(+), 38 deletions(-)
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -57,10 +57,10 @@ EXPORT_SYMBOL_GPL(pm_suspend_global_flag
static const struct platform_suspend_ops *suspend_ops;
static const struct platform_freeze_ops *freeze_ops;
-static DECLARE_WAIT_QUEUE_HEAD(suspend_freeze_wait_head);
+static DECLARE_WAIT_QUEUE_HEAD(s2idle_wait_head);
-enum freeze_state __read_mostly suspend_freeze_state;
-static DEFINE_SPINLOCK(suspend_freeze_lock);
+enum s2idle_states __read_mostly s2idle_state;
+static DEFINE_SPINLOCK(s2idle_lock);
void freeze_set_ops(const struct platform_freeze_ops *ops)
{
@@ -69,21 +69,21 @@ void freeze_set_ops(const struct platfor
unlock_system_sleep();
}
-static void freeze_begin(void)
+static void s2idle_begin(void)
{
- suspend_freeze_state = FREEZE_STATE_NONE;
+ s2idle_state = S2IDLE_STATE_NONE;
}
-static void freeze_enter(void)
+static void s2idle_enter(void)
{
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, true);
- spin_lock_irq(&suspend_freeze_lock);
+ spin_lock_irq(&s2idle_lock);
if (pm_wakeup_pending())
goto out;
- suspend_freeze_state = FREEZE_STATE_ENTER;
- spin_unlock_irq(&suspend_freeze_lock);
+ s2idle_state = S2IDLE_STATE_ENTER;
+ spin_unlock_irq(&s2idle_lock);
get_online_cpus();
cpuidle_resume();
@@ -91,17 +91,17 @@ static void freeze_enter(void)
/* Push all the CPUs into the idle loop. */
wake_up_all_idle_cpus();
/* Make the current CPU wait so it can enter the idle loop too. */
- wait_event(suspend_freeze_wait_head,
- suspend_freeze_state == FREEZE_STATE_WAKE);
+ wait_event(s2idle_wait_head,
+ s2idle_state == S2IDLE_STATE_WAKE);
cpuidle_pause();
put_online_cpus();
- spin_lock_irq(&suspend_freeze_lock);
+ spin_lock_irq(&s2idle_lock);
out:
- suspend_freeze_state = FREEZE_STATE_NONE;
- spin_unlock_irq(&suspend_freeze_lock);
+ s2idle_state = S2IDLE_STATE_NONE;
+ spin_unlock_irq(&s2idle_lock);
trace_suspend_resume(TPS("machine_suspend"), PM_SUSPEND_TO_IDLE, false);
}
@@ -118,12 +118,12 @@ static void s2idle_loop(void)
/*
* Suspend-to-idle equals
* frozen processes + suspended devices + idle processors.
- * Thus freeze_enter() should be called right after
+ * Thus s2idle_enter() should be called right after
* all devices have been suspended.
*/
error = dpm_noirq_suspend_devices(PMSG_SUSPEND);
if (!error)
- freeze_enter();
+ s2idle_enter();
dpm_noirq_resume_devices(PMSG_RESUME);
if (error && (error != -EBUSY || !pm_wakeup_pending())) {
@@ -148,18 +148,18 @@ static void s2idle_loop(void)
pm_pr_dbg("resume from suspend-to-idle\n");
}
-void freeze_wake(void)
+void s2idle_wake(void)
{
unsigned long flags;
- spin_lock_irqsave(&suspend_freeze_lock, flags);
- if (suspend_freeze_state > FREEZE_STATE_NONE) {
- suspend_freeze_state = FREEZE_STATE_WAKE;
- wake_up(&suspend_freeze_wait_head);
+ spin_lock_irqsave(&s2idle_lock, flags);
+ if (s2idle_state > S2IDLE_STATE_NONE) {
+ s2idle_state = S2IDLE_STATE_WAKE;
+ wake_up(&s2idle_wait_head);
}
- spin_unlock_irqrestore(&suspend_freeze_lock, flags);
+ spin_unlock_irqrestore(&s2idle_lock, flags);
}
-EXPORT_SYMBOL_GPL(freeze_wake);
+EXPORT_SYMBOL_GPL(s2idle_wake);
static bool valid_state(suspend_state_t state)
{
@@ -552,7 +552,7 @@ static int enter_state(suspend_state_t s
return -EBUSY;
if (state == PM_SUSPEND_TO_IDLE)
- freeze_begin();
+ s2idle_begin();
#ifndef CONFIG_SUSPEND_SKIP_SYNC
trace_suspend_resume(TPS("sync_filesystems"), 0, true);
Index: linux-pm/kernel/sched/idle.c
===================================================================
--- linux-pm.orig/kernel/sched/idle.c
+++ linux-pm/kernel/sched/idle.c
@@ -158,7 +158,7 @@ static void cpuidle_idle_call(void)
}
/*
- * Suspend-to-idle ("freeze") is a system state in which all user space
+ * Suspend-to-idle ("s2idle") is a system state in which all user space
* has been frozen, all I/O devices have been suspended and the only
* activity happens here and in iterrupts (if any). In that case bypass
* the cpuidle governor and go stratight for the deepest idle state
@@ -167,8 +167,8 @@ static void cpuidle_idle_call(void)
* until a proper wakeup interrupt happens.
*/
- if (idle_should_freeze() || dev->use_deepest_state) {
- if (idle_should_freeze()) {
+ if (idle_should_enter_s2idle() || dev->use_deepest_state) {
+ if (idle_should_enter_s2idle()) {
entered_state = cpuidle_enter_freeze(drv, dev);
if (entered_state > 0) {
local_irq_enable();
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -237,22 +237,22 @@ static inline bool pm_resume_via_firmwar
}
/* Suspend-to-idle state machnine. */
-enum freeze_state {
- FREEZE_STATE_NONE, /* Not suspended/suspending. */
- FREEZE_STATE_ENTER, /* Enter suspend-to-idle. */
- FREEZE_STATE_WAKE, /* Wake up from suspend-to-idle. */
+enum s2idle_states {
+ S2IDLE_STATE_NONE, /* Not suspended/suspending. */
+ S2IDLE_STATE_ENTER, /* Enter suspend-to-idle. */
+ S2IDLE_STATE_WAKE, /* Wake up from suspend-to-idle. */
};
-extern enum freeze_state __read_mostly suspend_freeze_state;
+extern enum s2idle_states __read_mostly s2idle_state;
-static inline bool idle_should_freeze(void)
+static inline bool idle_should_enter_s2idle(void)
{
- return unlikely(suspend_freeze_state == FREEZE_STATE_ENTER);
+ return unlikely(s2idle_state == S2IDLE_STATE_ENTER);
}
extern void __init pm_states_init(void);
extern void freeze_set_ops(const struct platform_freeze_ops *ops);
-extern void freeze_wake(void);
+extern void s2idle_wake(void);
/**
* arch_suspend_disable_irqs - disable IRQs for suspend
@@ -284,10 +284,10 @@ static inline bool pm_resume_via_firmwar
static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
-static inline bool idle_should_freeze(void) { return false; }
+static inline bool idle_should_enter_s2idle(void) { return false; }
static inline void __init pm_states_init(void) {}
static inline void freeze_set_ops(const struct platform_freeze_ops *ops) {}
-static inline void freeze_wake(void) {}
+static inline void s2idle_wake(void) {}
#endif /* !CONFIG_SUSPEND */
/* struct pbe is used for creating lists of pages that should be restored
Index: linux-pm/drivers/base/power/wakeup.c
===================================================================
--- linux-pm.orig/drivers/base/power/wakeup.c
+++ linux-pm/drivers/base/power/wakeup.c
@@ -865,7 +865,7 @@ bool pm_wakeup_pending(void)
void pm_system_wakeup(void)
{
atomic_inc(&pm_abort_suspend);
- freeze_wake();
+ s2idle_wake();
}
EXPORT_SYMBOL_GPL(pm_system_wakeup);
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
@ 2017-08-09 22:14 ` Rafael J. Wysocki
2017-08-09 22:15 ` [PATCH v2 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
3 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-09 22:14 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename the ->enter_freeze cpuidle driver callback to ->enter_s2idle
to make it clear that it is used for entering suspend-to-idle and
rename the related functions, variables and so on accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
arch/arm/mach-tegra/cpuidle-tegra114.c | 4
drivers/acpi/processor_idle.c | 6 -
drivers/cpuidle/cpuidle.c | 18 +--
drivers/cpuidle/dt_idle_states.c | 4
drivers/idle/intel_idle.c | 180 ++++++++++++++++-----------------
include/linux/cpuidle.h | 8 -
kernel/sched/idle.c | 2
7 files changed, 111 insertions(+), 111 deletions(-)
Index: linux-pm/include/linux/cpuidle.h
===================================================================
--- linux-pm.orig/include/linux/cpuidle.h
+++ linux-pm/include/linux/cpuidle.h
@@ -52,11 +52,11 @@ struct cpuidle_state {
int (*enter_dead) (struct cpuidle_device *dev, int index);
/*
- * CPUs execute ->enter_freeze with the local tick or entire timekeeping
+ * CPUs execute ->enter_s2idle with the local tick or entire timekeeping
* suspended, so it must not re-enable interrupts at any point (even
* temporarily) or attempt to change states of clock event devices.
*/
- void (*enter_freeze) (struct cpuidle_device *dev,
+ void (*enter_s2idle) (struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
};
@@ -197,14 +197,14 @@ static inline struct cpuidle_device *cpu
#ifdef CONFIG_CPU_IDLE
extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev);
-extern int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+extern int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev);
extern void cpuidle_use_deepest_state(bool enable);
#else
static inline int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
-static inline int cpuidle_enter_freeze(struct cpuidle_driver *drv,
+static inline int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
static inline void cpuidle_use_deepest_state(bool enable)
Index: linux-pm/drivers/cpuidle/cpuidle.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/cpuidle.c
+++ linux-pm/drivers/cpuidle/cpuidle.c
@@ -77,7 +77,7 @@ static int find_deepest_state(struct cpu
struct cpuidle_device *dev,
unsigned int max_latency,
unsigned int forbidden_flags,
- bool freeze)
+ bool s2idle)
{
unsigned int latency_req = 0;
int i, ret = 0;
@@ -89,7 +89,7 @@ static int find_deepest_state(struct cpu
if (s->disabled || su->disable || s->exit_latency <= latency_req
|| s->exit_latency > max_latency
|| (s->flags & forbidden_flags)
- || (freeze && !s->enter_freeze))
+ || (s2idle && !s->enter_s2idle))
continue;
latency_req = s->exit_latency;
@@ -128,7 +128,7 @@ int cpuidle_find_deepest_state(struct cp
}
#ifdef CONFIG_SUSPEND
-static void enter_freeze_proper(struct cpuidle_driver *drv,
+static void enter_s2idle_proper(struct cpuidle_driver *drv,
struct cpuidle_device *dev, int index)
{
/*
@@ -143,7 +143,7 @@ static void enter_freeze_proper(struct c
* suspended is generally unsafe.
*/
stop_critical_timings();
- drv->states[index].enter_freeze(dev, drv, index);
+ drv->states[index].enter_s2idle(dev, drv, index);
WARN_ON(!irqs_disabled());
/*
* timekeeping_resume() that will be called by tick_unfreeze() for the
@@ -155,25 +155,25 @@ static void enter_freeze_proper(struct c
}
/**
- * cpuidle_enter_freeze - Enter an idle state suitable for suspend-to-idle.
+ * cpuidle_enter_s2idle - Enter an idle state suitable for suspend-to-idle.
* @drv: cpuidle driver for the given CPU.
* @dev: cpuidle device for the given CPU.
*
- * If there are states with the ->enter_freeze callback, find the deepest of
+ * If there are states with the ->enter_s2idle callback, find the deepest of
* them and enter it with frozen tick.
*/
-int cpuidle_enter_freeze(struct cpuidle_driver *drv, struct cpuidle_device *dev)
+int cpuidle_enter_s2idle(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
int index;
/*
- * Find the deepest state with ->enter_freeze present, which guarantees
+ * Find the deepest state with ->enter_s2idle present, which guarantees
* that interrupts won't be enabled when it exits and allows the tick to
* be frozen safely.
*/
index = find_deepest_state(drv, dev, UINT_MAX, 0, true);
if (index > 0)
- enter_freeze_proper(drv, dev, index);
+ enter_s2idle_proper(drv, dev, index);
return index;
}
Index: linux-pm/kernel/sched/idle.c
===================================================================
--- linux-pm.orig/kernel/sched/idle.c
+++ linux-pm/kernel/sched/idle.c
@@ -169,7 +169,7 @@ static void cpuidle_idle_call(void)
if (idle_should_enter_s2idle() || dev->use_deepest_state) {
if (idle_should_enter_s2idle()) {
- entered_state = cpuidle_enter_freeze(drv, dev);
+ entered_state = cpuidle_enter_s2idle(drv, dev);
if (entered_state > 0) {
local_irq_enable();
goto exit_idle;
Index: linux-pm/drivers/idle/intel_idle.c
===================================================================
--- linux-pm.orig/drivers/idle/intel_idle.c
+++ linux-pm/drivers/idle/intel_idle.c
@@ -97,7 +97,7 @@ static const struct idle_cpu *icpu;
static struct cpuidle_device __percpu *intel_idle_cpuidle_devices;
static int intel_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
-static void intel_idle_freeze(struct cpuidle_device *dev,
+static void intel_idle_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
static struct cpuidle_state *cpuidle_state_table;
@@ -132,7 +132,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 3,
.target_residency = 6,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -140,7 +140,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -148,7 +148,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 20,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -156,7 +156,7 @@ static struct cpuidle_state nehalem_csta
.exit_latency = 200,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -169,7 +169,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -177,7 +177,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -185,7 +185,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 80,
.target_residency = 211,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -193,7 +193,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 104,
.target_residency = 345,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x30",
@@ -201,7 +201,7 @@ static struct cpuidle_state snb_cstates[
.exit_latency = 109,
.target_residency = 345,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -214,7 +214,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6N",
.desc = "MWAIT 0x58",
@@ -222,7 +222,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 300,
.target_residency = 275,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6S",
.desc = "MWAIT 0x52",
@@ -230,7 +230,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 500,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -238,7 +238,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7S",
.desc = "MWAIT 0x64",
@@ -246,7 +246,7 @@ static struct cpuidle_state byt_cstates[
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -259,7 +259,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6N",
.desc = "MWAIT 0x58",
@@ -267,7 +267,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 80,
.target_residency = 275,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6S",
.desc = "MWAIT 0x52",
@@ -275,7 +275,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 200,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -283,7 +283,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7S",
.desc = "MWAIT 0x64",
@@ -291,7 +291,7 @@ static struct cpuidle_state cht_cstates[
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -304,7 +304,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -312,7 +312,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -320,7 +320,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 59,
.target_residency = 156,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -328,7 +328,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 80,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x30",
@@ -336,7 +336,7 @@ static struct cpuidle_state ivb_cstates[
.exit_latency = 87,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -349,7 +349,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -357,7 +357,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 10,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -365,7 +365,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 59,
.target_residency = 156,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -373,7 +373,7 @@ static struct cpuidle_state ivt_cstates[
.exit_latency = 82,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -386,7 +386,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -394,7 +394,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 10,
.target_residency = 250,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -402,7 +402,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 59,
.target_residency = 300,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -410,7 +410,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 84,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -423,7 +423,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 1,
.target_residency = 1,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -431,7 +431,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 10,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -439,7 +439,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 59,
.target_residency = 600,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -447,7 +447,7 @@ static struct cpuidle_state ivt_cstates_
.exit_latency = 88,
.target_residency = 700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -460,7 +460,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -468,7 +468,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -476,7 +476,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 33,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -484,7 +484,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 133,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x32",
@@ -492,7 +492,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 166,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -500,7 +500,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 300,
.target_residency = 900,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -508,7 +508,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 600,
.target_residency = 1800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -516,7 +516,7 @@ static struct cpuidle_state hsw_cstates[
.exit_latency = 2600,
.target_residency = 7700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -528,7 +528,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -536,7 +536,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -544,7 +544,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 40,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -552,7 +552,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 133,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x32",
@@ -560,7 +560,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 166,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -568,7 +568,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 300,
.target_residency = 900,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -576,7 +576,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 600,
.target_residency = 1800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -584,7 +584,7 @@ static struct cpuidle_state bdw_cstates[
.exit_latency = 2600,
.target_residency = 7700,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -597,7 +597,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -605,7 +605,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C3",
.desc = "MWAIT 0x10",
@@ -613,7 +613,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 70,
.target_residency = 100,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -621,7 +621,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 85,
.target_residency = 200,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x33",
@@ -629,7 +629,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 124,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -637,7 +637,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 200,
.target_residency = 800,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -645,7 +645,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 480,
.target_residency = 5000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -653,7 +653,7 @@ static struct cpuidle_state skl_cstates[
.exit_latency = 890,
.target_residency = 5000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -666,7 +666,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -674,7 +674,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -682,7 +682,7 @@ static struct cpuidle_state skx_cstates[
.exit_latency = 133,
.target_residency = 600,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -695,7 +695,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C2",
.desc = "MWAIT 0x10",
@@ -703,7 +703,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 20,
.target_residency = 80,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C4",
.desc = "MWAIT 0x30",
@@ -711,7 +711,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 100,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x52",
@@ -719,7 +719,7 @@ static struct cpuidle_state atom_cstates
.exit_latency = 140,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -731,7 +731,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 1,
.target_residency = 4,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C4",
.desc = "MWAIT 0x30",
@@ -739,7 +739,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 100,
.target_residency = 400,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x52",
@@ -747,7 +747,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 140,
.target_residency = 560,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7",
.desc = "MWAIT 0x60",
@@ -755,7 +755,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 1200,
.target_residency = 4000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x64",
@@ -763,7 +763,7 @@ static struct cpuidle_state tangier_csta
.exit_latency = 10000,
.target_residency = 20000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -775,7 +775,7 @@ static struct cpuidle_state avn_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x51",
@@ -783,7 +783,7 @@ static struct cpuidle_state avn_cstates[
.exit_latency = 15,
.target_residency = 45,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -795,7 +795,7 @@ static struct cpuidle_state knl_cstates[
.exit_latency = 1,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze },
+ .enter_s2idle = intel_idle_s2idle },
{
.name = "C6",
.desc = "MWAIT 0x10",
@@ -803,7 +803,7 @@ static struct cpuidle_state knl_cstates[
.exit_latency = 120,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze },
+ .enter_s2idle = intel_idle_s2idle },
{
.enter = NULL }
};
@@ -816,7 +816,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -824,7 +824,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -832,7 +832,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 133,
.target_residency = 133,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C7s",
.desc = "MWAIT 0x31",
@@ -840,7 +840,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 155,
.target_residency = 155,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C8",
.desc = "MWAIT 0x40",
@@ -848,7 +848,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 1000,
.target_residency = 1000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C9",
.desc = "MWAIT 0x50",
@@ -856,7 +856,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 2000,
.target_residency = 2000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C10",
.desc = "MWAIT 0x60",
@@ -864,7 +864,7 @@ static struct cpuidle_state bxt_cstates[
.exit_latency = 10000,
.target_residency = 10000,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -877,7 +877,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 2,
.target_residency = 2,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C1E",
.desc = "MWAIT 0x01",
@@ -885,7 +885,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 10,
.target_residency = 20,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.name = "C6",
.desc = "MWAIT 0x20",
@@ -893,7 +893,7 @@ static struct cpuidle_state dnv_cstates[
.exit_latency = 50,
.target_residency = 500,
.enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter_s2idle = intel_idle_s2idle, },
{
.enter = NULL }
};
@@ -936,12 +936,12 @@ static __cpuidle int intel_idle(struct c
}
/**
- * intel_idle_freeze - simplified "enter" callback routine for suspend-to-idle
+ * intel_idle_s2idle - simplified "enter" callback routine for suspend-to-idle
* @dev: cpuidle_device
* @drv: cpuidle driver
* @index: state index
*/
-static void intel_idle_freeze(struct cpuidle_device *dev,
+static void intel_idle_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
unsigned long ecx = 1; /* break on interrupt flag */
@@ -1337,7 +1337,7 @@ static void __init intel_idle_cpuidle_dr
int num_substates, mwait_hint, mwait_cstate;
if ((cpuidle_state_table[cstate].enter == NULL) &&
- (cpuidle_state_table[cstate].enter_freeze == NULL))
+ (cpuidle_state_table[cstate].enter_s2idle == NULL))
break;
if (cstate + 1 > max_cstate) {
Index: linux-pm/drivers/acpi/processor_idle.c
===================================================================
--- linux-pm.orig/drivers/acpi/processor_idle.c
+++ linux-pm/drivers/acpi/processor_idle.c
@@ -789,7 +789,7 @@ static int acpi_idle_enter(struct cpuidl
return index;
}
-static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
+static void acpi_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu);
@@ -867,14 +867,14 @@ static int acpi_processor_setup_cstates(
drv->safe_state_index = count;
}
/*
- * Halt-induced C1 is not good for ->enter_freeze, because it
+ * Halt-induced C1 is not good for ->enter_s2idle, because it
* re-enables interrupts on exit. Moreover, C1 is generally not
* particularly interesting from the suspend-to-idle angle, so
* avoid C1 and the situations in which we may need to fall back
* to it altogether.
*/
if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))
- state->enter_freeze = acpi_idle_enter_freeze;
+ state->enter_s2idle = acpi_idle_enter_s2idle;
count++;
if (count == CPUIDLE_STATE_MAX)
Index: linux-pm/drivers/cpuidle/dt_idle_states.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/dt_idle_states.c
+++ linux-pm/drivers/cpuidle/dt_idle_states.c
@@ -41,9 +41,9 @@ static int init_state_node(struct cpuidl
/*
* Since this is not a "coupled" state, it's safe to assume interrupts
* won't be enabled when it exits allowing the tick to be frozen
- * safely. So enter() can be also enter_freeze() callback.
+ * safely. So enter() can be also enter_s2idle() callback.
*/
- idle_state->enter_freeze = match_id->data;
+ idle_state->enter_s2idle = match_id->data;
err = of_property_read_u32(state_node, "wakeup-latency-us",
&idle_state->exit_latency);
Index: linux-pm/arch/arm/mach-tegra/cpuidle-tegra114.c
===================================================================
--- linux-pm.orig/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ linux-pm/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -60,7 +60,7 @@ static int tegra114_idle_power_down(stru
return index;
}
-static void tegra114_idle_enter_freeze(struct cpuidle_device *dev,
+static void tegra114_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
@@ -77,7 +77,7 @@ static struct cpuidle_driver tegra_idle_
#ifdef CONFIG_PM_SLEEP
[1] = {
.enter = tegra114_idle_power_down,
- .enter_freeze = tegra114_idle_enter_freeze,
+ .enter_s2idle = tegra114_idle_enter_s2idle,
.exit_latency = 500,
.target_residency = 1000,
.flags = CPUIDLE_FLAG_TIMER_STOP,
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2 4/4] PM / s2idle: Rename platform operations structure
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
` (2 preceding siblings ...)
2017-08-09 22:14 ` [PATCH v2 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
@ 2017-08-09 22:15 ` Rafael J. Wysocki
3 siblings, 0 replies; 13+ messages in thread
From: Rafael J. Wysocki @ 2017-08-09 22:15 UTC (permalink / raw)
To: Linux PM
Cc: LKML, Linux ACPI, Peter Zijlstra, Thomas Gleixner,
Srinivas Pandruvada, Jacob Pan, Len Brown, Daniel Lezcano
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Rename struct platform_freeze_ops to platform_s2idle_ops to make it
clear that the callbacks in it are used during suspend-to-idle
suspend/resume transitions and rename the related functions,
variables and so on accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/sleep.c | 28 ++++++++++++++--------------
include/linux/suspend.h | 6 +++---
kernel/power/suspend.c | 30 +++++++++++++++---------------
3 files changed, 32 insertions(+), 32 deletions(-)
Index: linux-pm/include/linux/suspend.h
===================================================================
--- linux-pm.orig/include/linux/suspend.h
+++ linux-pm/include/linux/suspend.h
@@ -186,7 +186,7 @@ struct platform_suspend_ops {
void (*recover)(void);
};
-struct platform_freeze_ops {
+struct platform_s2idle_ops {
int (*begin)(void);
int (*prepare)(void);
void (*wake)(void);
@@ -251,7 +251,7 @@ static inline bool idle_should_enter_s2i
}
extern void __init pm_states_init(void);
-extern void freeze_set_ops(const struct platform_freeze_ops *ops);
+extern void s2idle_set_ops(const struct platform_s2idle_ops *ops);
extern void s2idle_wake(void);
/**
@@ -286,7 +286,7 @@ static inline void suspend_set_ops(const
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
static inline bool idle_should_enter_s2idle(void) { return false; }
static inline void __init pm_states_init(void) {}
-static inline void freeze_set_ops(const struct platform_freeze_ops *ops) {}
+static inline void s2idle_set_ops(const struct platform_s2idle_ops *ops) {}
static inline void s2idle_wake(void) {}
#endif /* !CONFIG_SUSPEND */
Index: linux-pm/drivers/acpi/sleep.c
===================================================================
--- linux-pm.orig/drivers/acpi/sleep.c
+++ linux-pm/drivers/acpi/sleep.c
@@ -737,14 +737,14 @@ static struct acpi_scan_handler lps0_han
.attach = lps0_device_attach,
};
-static int acpi_freeze_begin(void)
+static int acpi_s2idle_begin(void)
{
acpi_scan_lock_acquire();
s2idle_in_progress = true;
return 0;
}
-static int acpi_freeze_prepare(void)
+static int acpi_s2idle_prepare(void)
{
if (lps0_device_handle) {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF);
@@ -764,7 +764,7 @@ static int acpi_freeze_prepare(void)
return 0;
}
-static void acpi_freeze_wake(void)
+static void acpi_s2idle_wake(void)
{
/*
* If IRQD_WAKEUP_ARMED is not set for the SCI at this point, it means
@@ -778,7 +778,7 @@ static void acpi_freeze_wake(void)
}
}
-static void acpi_freeze_sync(void)
+static void acpi_s2idle_sync(void)
{
/*
* Process all pending events in case there are any wakeup ones.
@@ -791,7 +791,7 @@ static void acpi_freeze_sync(void)
s2idle_wakeup = false;
}
-static void acpi_freeze_restore(void)
+static void acpi_s2idle_restore(void)
{
if (acpi_sci_irq_valid())
disable_irq_wake(acpi_sci_irq);
@@ -804,19 +804,19 @@ static void acpi_freeze_restore(void)
}
}
-static void acpi_freeze_end(void)
+static void acpi_s2idle_end(void)
{
s2idle_in_progress = false;
acpi_scan_lock_release();
}
-static const struct platform_freeze_ops acpi_freeze_ops = {
- .begin = acpi_freeze_begin,
- .prepare = acpi_freeze_prepare,
- .wake = acpi_freeze_wake,
- .sync = acpi_freeze_sync,
- .restore = acpi_freeze_restore,
- .end = acpi_freeze_end,
+static const struct platform_s2idle_ops acpi_s2idle_ops = {
+ .begin = acpi_s2idle_begin,
+ .prepare = acpi_s2idle_prepare,
+ .wake = acpi_s2idle_wake,
+ .sync = acpi_s2idle_sync,
+ .restore = acpi_s2idle_restore,
+ .end = acpi_s2idle_end,
};
static void acpi_sleep_suspend_setup(void)
@@ -831,7 +831,7 @@ static void acpi_sleep_suspend_setup(voi
&acpi_suspend_ops_old : &acpi_suspend_ops);
acpi_scan_add_handler(&lps0_handler);
- freeze_set_ops(&acpi_freeze_ops);
+ s2idle_set_ops(&acpi_s2idle_ops);
}
#else /* !CONFIG_SUSPEND */
Index: linux-pm/kernel/power/suspend.c
===================================================================
--- linux-pm.orig/kernel/power/suspend.c
+++ linux-pm/kernel/power/suspend.c
@@ -56,16 +56,16 @@ unsigned int pm_suspend_global_flags;
EXPORT_SYMBOL_GPL(pm_suspend_global_flags);
static const struct platform_suspend_ops *suspend_ops;
-static const struct platform_freeze_ops *freeze_ops;
+static const struct platform_s2idle_ops *s2idle_ops;
static DECLARE_WAIT_QUEUE_HEAD(s2idle_wait_head);
enum s2idle_states __read_mostly s2idle_state;
static DEFINE_SPINLOCK(s2idle_lock);
-void freeze_set_ops(const struct platform_freeze_ops *ops)
+void s2idle_set_ops(const struct platform_s2idle_ops *ops)
{
lock_system_sleep();
- freeze_ops = ops;
+ s2idle_ops = ops;
unlock_system_sleep();
}
@@ -131,13 +131,13 @@ static void s2idle_loop(void)
break;
}
- if (freeze_ops && freeze_ops->wake)
- freeze_ops->wake();
+ if (s2idle_ops && s2idle_ops->wake)
+ s2idle_ops->wake();
dpm_noirq_end();
- if (freeze_ops && freeze_ops->sync)
- freeze_ops->sync();
+ if (s2idle_ops && s2idle_ops->sync)
+ s2idle_ops->sync();
if (pm_wakeup_pending())
break;
@@ -250,8 +250,8 @@ static int platform_suspend_prepare(susp
static int platform_suspend_prepare_late(suspend_state_t state)
{
- return state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->prepare ?
- freeze_ops->prepare() : 0;
+ return state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->prepare ?
+ s2idle_ops->prepare() : 0;
}
static int platform_suspend_prepare_noirq(suspend_state_t state)
@@ -268,8 +268,8 @@ static void platform_resume_noirq(suspen
static void platform_resume_early(suspend_state_t state)
{
- if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->restore)
- freeze_ops->restore();
+ if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->restore)
+ s2idle_ops->restore();
}
static void platform_resume_finish(suspend_state_t state)
@@ -280,8 +280,8 @@ static void platform_resume_finish(suspe
static int platform_suspend_begin(suspend_state_t state)
{
- if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->begin)
- return freeze_ops->begin();
+ if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->begin)
+ return s2idle_ops->begin();
else if (suspend_ops && suspend_ops->begin)
return suspend_ops->begin(state);
else
@@ -290,8 +290,8 @@ static int platform_suspend_begin(suspen
static void platform_resume_end(suspend_state_t state)
{
- if (state == PM_SUSPEND_TO_IDLE && freeze_ops && freeze_ops->end)
- freeze_ops->end();
+ if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->end)
+ s2idle_ops->end();
else if (suspend_ops && suspend_ops->end)
suspend_ops->end();
}
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2017-08-09 22:25 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-08-05 12:55 [PATCH 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-05 12:56 ` [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_S2IDLE Rafael J. Wysocki
2017-08-07 8:49 ` Peter Zijlstra
2017-08-07 11:57 ` Rafael J. Wysocki
2017-08-07 12:00 ` Rafael J. Wysocki
2017-08-05 12:58 ` [PATCH 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
2017-08-05 12:59 ` [PATCH 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
2017-08-05 13:00 ` [PATCH 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
2017-08-09 22:11 ` [PATCH v2 0/4] PM: Replace "freeze" with "s2idle" in item names related to suspend-to-idle Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND_TO_IDLE Rafael J. Wysocki
2017-08-09 22:13 ` [PATCH v2 2/4] PM / s2idle: Rename freeze_state enum and related items Rafael J. Wysocki
2017-08-09 22:14 ` [PATCH v2 3/4] PM / s2idle: Rename ->enter_freeze to ->enter_s2idle Rafael J. Wysocki
2017-08-09 22:15 ` [PATCH v2 4/4] PM / s2idle: Rename platform operations structure Rafael J. Wysocki
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