Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f3de4be9d5f8551d7880a1f1f5231a30e0161b1f
Commit: f3de4be9d5f8551d7880a1f1f5231a30e0161b1f
Parent: b07e35f94a7b6a059f889b904529ee907dc0634d
Author: Rafael J. Wysocki <[EMAIL PROTECTED]>
AuthorDate: Thu Aug 30 23:56:29 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Fri Aug 31 01:42:22 2007 -0700
PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION
Dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION introduced by commit
296699de6bdc717189a331ab6bbe90e05c94db06 "Introduce CONFIG_SUSPEND for
suspend-to-Ram and standby" are incorrect, as they don't cover the facts
that
(1) not all architectures support suspend and (2) SMP hibernation is only
possible on X86 and PPC64 (if CONFIG_PPC64_SWSUSP is set).
Signed-off-by: Rafael J. Wysocki <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/x86_64/defconfig | 1 -
include/linux/cpu.h | 6 +++---
kernel/cpu.c | 4 ++--
kernel/power/Kconfig | 41 +++++++++++++++++++++++++++++++----------
4 files changed, 36 insertions(+), 16 deletions(-)
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index e64f65c..b091c5e 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -201,7 +201,6 @@ CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
-CONFIG_SUSPEND_SMP=y
#
# ACPI (Advanced Configuration and Power Interface) Support
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 1d5ded0..0ad72c4 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -126,16 +126,16 @@ static inline void cpuhotplug_mutex_unlock(struct mutex
*cpu_hp_mutex)
static inline int cpu_is_offline(int cpu) { return 0; }
#endif /* CONFIG_HOTPLUG_CPU */
-#ifdef CONFIG_SUSPEND_SMP
+#ifdef CONFIG_PM_SLEEP_SMP
extern int suspend_cpu_hotplug;
extern int disable_nonboot_cpus(void);
extern void enable_nonboot_cpus(void);
-#else
+#else /* !CONFIG_PM_SLEEP_SMP */
#define suspend_cpu_hotplug 0
static inline int disable_nonboot_cpus(void) { return 0; }
static inline void enable_nonboot_cpus(void) {}
-#endif
+#endif /* !CONFIG_PM_SLEEP_SMP */
#endif /* _LINUX_CPU_H_ */
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 181ae70..38033db 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -273,7 +273,7 @@ int __cpuinit cpu_up(unsigned int cpu)
return err;
}
-#ifdef CONFIG_SUSPEND_SMP
+#ifdef CONFIG_PM_SLEEP_SMP
static cpumask_t frozen_cpus;
int disable_nonboot_cpus(void)
@@ -334,4 +334,4 @@ void enable_nonboot_cpus(void)
out:
mutex_unlock(&cpu_add_remove_lock);
}
-#endif
+#endif /* CONFIG_PM_SLEEP_SMP */
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 412859f..c8580a1 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -72,15 +72,10 @@ config PM_TRACE
CAUTION: this option will cause your machine's real-time clock to be
set to an invalid time after a resume.
-config SUSPEND_SMP_POSSIBLE
- bool
- depends on (X86 && !X86_VOYAGER) || (PPC64 && (PPC_PSERIES || PPC_PMAC))
- depends on SMP
- default y
-
-config SUSPEND_SMP
+config PM_SLEEP_SMP
bool
- depends on SUSPEND_SMP_POSSIBLE && PM_SLEEP
+ depends on SUSPEND_SMP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+ depends on PM_SLEEP
select HOTPLUG_CPU
default y
@@ -89,20 +84,46 @@ config PM_SLEEP
depends on SUSPEND || HIBERNATION
default y
+config SUSPEND_UP_POSSIBLE
+ bool
+ depends on (X86 && !X86_VOYAGER) || PPC || ARM || BLACKFIN || MIPS \
+ || SUPERH || FRV
+ depends on !SMP
+ default y
+
+config SUSPEND_SMP_POSSIBLE
+ bool
+ depends on (X86 && !X86_VOYAGER) \
+ || (PPC && (PPC_PSERIES || PPC_PMAC)) || ARM
+ depends on SMP
+ default y
+
config SUSPEND
bool "Suspend to RAM and standby"
depends on PM
- depends on !SMP || SUSPEND_SMP_POSSIBLE
+ depends on SUSPEND_UP_POSSIBLE || SUSPEND_SMP_POSSIBLE
default y
---help---
Allow the system to enter sleep states in which main memory is
powered and thus its contents are preserved, such as the
suspend-to-RAM state (i.e. the ACPI S3 state).
+config HIBERNATION_UP_POSSIBLE
+ bool
+ depends on X86 || PPC64_SWSUSP || FRV || PPC32
+ depends on !SMP
+ default y
+
+config HIBERNATION_SMP_POSSIBLE
+ bool
+ depends on (X86 && !X86_VOYAGER) || PPC64_SWSUSP
+ depends on SMP
+ default y
+
config HIBERNATION
bool "Hibernation (aka 'suspend to disk')"
depends on PM && SWAP
- depends on ((X86 || PPC64_SWSUSP || FRV || PPC32) && !SMP) ||
SUSPEND_SMP_POSSIBLE
+ depends on HIBERNATION_UP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
---help---
Enable the suspend to disk (STD) functionality, which is usually
called "hibernation" in user interfaces. STD checkpoints the
-
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