* [PATCH 2/2] PM / sleep: Make ->enter_freeze callbacks depend on CONFIG_SUSPEND
2015-05-15 23:37 [PATCH 0/2] PM: Avoid building suspend-to-idle code when it is not necessary Rafael J. Wysocki
2015-05-15 23:38 ` [PATCH 1/2] PM / sleep: Make suspend-to-idle-specific code depend on CONFIG_SUSPEND Rafael J. Wysocki
@ 2015-05-15 23:38 ` Rafael J. Wysocki
2015-05-18 12:18 ` Peter Zijlstra
1 sibling, 1 reply; 9+ messages in thread
From: Rafael J. Wysocki @ 2015-05-15 23:38 UTC (permalink / raw)
To: Linux PM list
Cc: Linux Kernel Mailing List, Thomas Gleixner, Peter Zijlstra,
Daniel Lezcano, Len Brown
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The ->enter_freeze callbacks of cpuidle drivers are only used if
CONFIG_SUSPEND is set, so make them explicitly depend on that
Kconfig option.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/processor_idle.c | 11 ++
drivers/cpuidle/cpuidle.c | 2
drivers/idle/intel_idle.c | 186 +++++++++++++++---------------------------
include/linux/cpuidle.h | 14 +++
4 files changed, 93 insertions(+), 120 deletions(-)
Index: linux-pm/include/linux/cpuidle.h
===================================================================
--- linux-pm.orig/include/linux/cpuidle.h
+++ linux-pm/include/linux/cpuidle.h
@@ -51,6 +51,7 @@ struct cpuidle_state {
int (*enter_dead) (struct cpuidle_device *dev, int index);
+#ifdef CONFIG_SUSPEND
/*
* CPUs execute ->enter_freeze with the local tick or entire timekeeping
* suspended, so it must not re-enable interrupts at any point (even
@@ -59,6 +60,7 @@ struct cpuidle_state {
void (*enter_freeze) (struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
+#endif
};
/* Idle State Flags */
@@ -67,6 +69,18 @@ struct cpuidle_state {
#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
+#ifdef CONFIG_SUSPEND
+static inline bool cpuidle_has_enter_freeze(struct cpuidle_state *state)
+{
+ return !!state->enter_freeze;
+}
+#else
+static inline bool cpuidle_has_enter_freeze(struct cpuidle_state *state)
+{
+ return false;
+}
+#endif
+
struct cpuidle_device_kobj;
struct cpuidle_state_kobj;
struct cpuidle_driver_kobj;
Index: linux-pm/drivers/acpi/processor_idle.c
===================================================================
--- linux-pm.orig/drivers/acpi/processor_idle.c
+++ linux-pm/drivers/acpi/processor_idle.c
@@ -827,6 +827,7 @@ static int acpi_idle_enter(struct cpuidl
return index;
}
+#ifdef CONFIG_SUSPEND
static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
@@ -848,6 +849,14 @@ static void acpi_idle_enter_freeze(struc
acpi_idle_do_entry(cx);
}
+static inline void set_enter_freeze(struct cpuidle_state *state)
+{
+ state->enter_freeze = acpi_idle_enter_freeze;
+}
+#else
+static inline void set_enter_freeze(struct cpuidle_state *state) {}
+#endif
+
struct cpuidle_driver acpi_idle_driver = {
.name = "acpi_idle",
.owner = THIS_MODULE,
@@ -954,7 +963,7 @@ static int acpi_processor_setup_cpuidle_
* to it altogether.
*/
if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))
- state->enter_freeze = acpi_idle_enter_freeze;
+ set_enter_freeze(state);
count++;
if (count == CPUIDLE_STATE_MAX)
Index: linux-pm/drivers/idle/intel_idle.c
===================================================================
--- linux-pm.orig/drivers/idle/intel_idle.c
+++ linux-pm/drivers/idle/intel_idle.c
@@ -97,8 +97,6 @@ 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,
- struct cpuidle_driver *drv, int index);
static int intel_idle_cpu_init(int cpu);
static struct cpuidle_state *cpuidle_state_table;
@@ -133,32 +131,28 @@ static struct cpuidle_state nehalem_csta
.flags = MWAIT2flg(0x00),
.exit_latency = 3,
.target_residency = 6,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-NHM",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-NHM",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 20,
.target_residency = 80,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-NHM",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 200,
.target_residency = 800,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -170,40 +164,35 @@ static struct cpuidle_state snb_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 2,
.target_residency = 2,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-SNB",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-SNB",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 80,
.target_residency = 211,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-SNB",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 104,
.target_residency = 345,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7-SNB",
.desc = "MWAIT 0x30",
.flags = MWAIT2flg(0x30) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 109,
.target_residency = 345,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -215,40 +204,35 @@ static struct cpuidle_state byt_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6N-BYT",
.desc = "MWAIT 0x58",
.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
.target_residency = 275,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6S-BYT",
.desc = "MWAIT 0x52",
.flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 500,
.target_residency = 560,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7-BYT",
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 1200,
.target_residency = 4000,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7S-BYT",
.desc = "MWAIT 0x64",
.flags = MWAIT2flg(0x64) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 10000,
.target_residency = 20000,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -260,40 +244,35 @@ static struct cpuidle_state cht_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6N-CHT",
.desc = "MWAIT 0x58",
.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 80,
.target_residency = 275,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6S-CHT",
.desc = "MWAIT 0x52",
.flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 200,
.target_residency = 560,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7-CHT",
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 1200,
.target_residency = 4000,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7S-CHT",
.desc = "MWAIT 0x64",
.flags = MWAIT2flg(0x64) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 10000,
.target_residency = 20000,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -305,40 +284,35 @@ static struct cpuidle_state ivb_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-IVB",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-IVB",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 59,
.target_residency = 156,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-IVB",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 80,
.target_residency = 300,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7-IVB",
.desc = "MWAIT 0x30",
.flags = MWAIT2flg(0x30) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 87,
.target_residency = 300,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -350,32 +324,28 @@ static struct cpuidle_state ivt_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-IVT",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 80,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-IVT",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 59,
.target_residency = 156,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-IVT",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 82,
.target_residency = 300,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -387,32 +357,28 @@ static struct cpuidle_state ivt_cstates_
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-IVT-4S",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 250,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-IVT-4S",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 59,
.target_residency = 300,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-IVT-4S",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 84,
.target_residency = 400,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -424,32 +390,28 @@ static struct cpuidle_state ivt_cstates_
.flags = MWAIT2flg(0x00),
.exit_latency = 1,
.target_residency = 1,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-IVT-8S",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 500,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-IVT-8S",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 59,
.target_residency = 600,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-IVT-8S",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 88,
.target_residency = 700,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -461,64 +423,56 @@ static struct cpuidle_state hsw_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 2,
.target_residency = 2,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-HSW",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-HSW",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 33,
.target_residency = 100,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-HSW",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
.target_residency = 400,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7s-HSW",
.desc = "MWAIT 0x32",
.flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 166,
.target_residency = 500,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C8-HSW",
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
.target_residency = 900,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C9-HSW",
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 600,
.target_residency = 1800,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C10-HSW",
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 2600,
.target_residency = 7700,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -529,64 +483,56 @@ static struct cpuidle_state bdw_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 2,
.target_residency = 2,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C1E-BDW",
.desc = "MWAIT 0x01",
.flags = MWAIT2flg(0x01),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C3-BDW",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 40,
.target_residency = 100,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-BDW",
.desc = "MWAIT 0x20",
.flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 133,
.target_residency = 400,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C7s-BDW",
.desc = "MWAIT 0x32",
.flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 166,
.target_residency = 500,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C8-BDW",
.desc = "MWAIT 0x40",
.flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 300,
.target_residency = 900,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C9-BDW",
.desc = "MWAIT 0x50",
.flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 600,
.target_residency = 1800,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C10-BDW",
.desc = "MWAIT 0x60",
.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 2600,
.target_residency = 7700,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -598,32 +544,28 @@ static struct cpuidle_state atom_cstates
.flags = MWAIT2flg(0x00),
.exit_latency = 10,
.target_residency = 20,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C2-ATM",
.desc = "MWAIT 0x10",
.flags = MWAIT2flg(0x10),
.exit_latency = 20,
.target_residency = 80,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C4-ATM",
.desc = "MWAIT 0x30",
.flags = MWAIT2flg(0x30) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 100,
.target_residency = 400,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-ATM",
.desc = "MWAIT 0x52",
.flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 140,
.target_residency = 560,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -634,16 +576,14 @@ static struct cpuidle_state avn_cstates[
.flags = MWAIT2flg(0x00),
.exit_latency = 2,
.target_residency = 2,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.name = "C6-AVN",
.desc = "MWAIT 0x51",
.flags = MWAIT2flg(0x51) | CPUIDLE_FLAG_TLB_FLUSHED,
.exit_latency = 15,
.target_residency = 45,
- .enter = &intel_idle,
- .enter_freeze = intel_idle_freeze, },
+ .enter = &intel_idle, },
{
.enter = NULL }
};
@@ -685,6 +625,7 @@ static int intel_idle(struct cpuidle_dev
return index;
}
+#ifdef CONFIG_SUSPEND
/**
* intel_idle_freeze - simplified "enter" callback routine for suspend-to-idle
* @dev: cpuidle_device
@@ -700,6 +641,14 @@ static void intel_idle_freeze(struct cpu
mwait_idle_with_hints(eax, ecx);
}
+static inline void set_enter_freeze(struct cpuidle_state *state)
+{
+ state->enter_freeze = intel_idle_freeze;
+}
+#else
+static inline void set_enter_freeze(struct cpuidle_state *state) {}
+#endif
+
static void __setup_broadcast_timer(void *arg)
{
unsigned long on = (unsigned long)arg;
@@ -992,6 +941,7 @@ static int __init intel_idle_cpuidle_dri
drv->states[drv->state_count] = /* structure copy */
cpuidle_state_table[cstate];
+ set_enter_freeze(&drv->states[drv->state_count]);
drv->state_count += 1;
}
Index: linux-pm/drivers/cpuidle/cpuidle.c
===================================================================
--- linux-pm.orig/drivers/cpuidle/cpuidle.c
+++ linux-pm/drivers/cpuidle/cpuidle.c
@@ -88,7 +88,7 @@ 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))
+ || (freeze && !cpuidle_has_enter_freeze(s)))
continue;
latency_req = s->exit_latency;
^ permalink raw reply [flat|nested] 9+ messages in thread