linux.git/kernel/power/main.c, branch v2.6.19

[PATCH] PM: Add pm_trace switch

2006-09-26T15:49:04+00:00

Add the pm_trace attribute in /sys/power which has to be explicitly set to
one to really enable the "PM tracing" code compiled in when CONFIG_PM_TRACE
is set (which modifies the machine's CMOS clock in unpredictable ways).

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Disable CPU hotplug during suspend

2006-09-26T15:48:59+00:00

The current suspend code has to be run on one CPU, so we use the CPU
hotplug to take the non-boot CPUs offline on SMP machines.  However, we
should also make sure that these CPUs will not be enabled by someone else
after we have disabled them.

The functions disable_nonboot_cpus() and enable_nonboot_cpus() are moved to
kernel/cpu.c, because they now refer to some stuff in there that should
better be static.  Also it's better if disable_nonboot_cpus() returns an
error instead of panicking if something goes wrong, and
enable_nonboot_cpus() has no reason to panic(), because the CPUs may have
been enabled by the userland before it tries to take them online.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] constify parts of kernel/power/

2006-06-25T17:01:08+00:00

Signed-off-by: Andreas Mohr 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] suspend_console() warning fix

2006-06-22T22:05:56+00:00

kernel/power/main.c: In function 'suspend_prepare':
kernel/power/main.c:89: warning: implicit declaration of function 'suspend_console'
kernel/power/main.c: In function 'suspend_finish':
kernel/power/main.c:137: warning: implicit declaration of function 'resume_console'

Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Add support for suspending and resuming the whole console subsystem

2006-06-20T01:16:01+00:00

Trying to suspend/resume with console messages flying all around is
doomed to failure, when the devices that the messages are trying to
go to are being shut down.

Signed-off-by: Linus Torvalds

[PATCH] off-by-1 in kernel/power/main.c

2006-04-28T15:33:46+00:00

There's an off-by-1 in kernel/power/main.c:state_store() ...  if your
kernel just happens to have some non-zero data at pm_states[PM_SUSPEND_MAX]
(i.e.  one past the end of the array) then it'll let you write anything you
want to /sys/power/state and in response the box will enter S5.

Signed-off-by: dean gaudet 
Acked-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: add s2ram ioctl to userland interface

2006-03-23T15:38:08+00:00

Add the SNAPSHOT_S2RAM ioctl to the snapshot device.

This ioctl allows a userland application to make the system (previously frozen
with the SNAPSHOT_FREE ioctl) enter the S3 state without freezing processes
and disabling nonboot CPUs for the second time.

This will allow us to implement the suspend-to-disk-and-RAM (STDR)
functionality in the userland suspend tools.

Signed-off-by: Luca Tettamanti 
Signed-off-by: Rafael J. Wysocki 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[ACPI] SMP S3 resume: evaluate _WAK after INIT

2005-12-01T04:15:55+00:00

On SMP resume from S3, we reset (INIT) the non-boot
processors to boot them cleanly.  But the BIOS needs
to execute _WAK after INIT in order to properly
initialized these processors upon resume.

http://bugzilla.kernel.org/show_bug.cgi?id=5651

Signed-off-by: David Shaohua Li 
Signed-off-by: Len Brown

[PATCH] fix swsusp on machines not supporting S4

2005-11-30T03:47:03+00:00

Fix swsusp on machines not supporting S4.  With recent changes, it is not
possible to trigger it using /sys filesystem.  Swsusp does not really need
any support from low-level code, it is possible to reboot or halt at the
end of suspend.

Signed-off-by: Pavel Machek 
Cc: "Brown, Len" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] sleep: Fix oops in enter_state

2005-11-09T15:55:50+00:00

If ACPI sleep is not configured, but someone still wants to run swsusp,
he'd get oops in enter_state.  This is regression since 2.6.14 and this
fixes it.

Signed-off-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds