linux.git/arch/i386/kernel/cpu/intel_cacheinfo.c, branch v2.6.22

Add suspend-related notifications for CPU hotplug

2007-05-09T19:30:56+00:00

Since nonboot CPUs are now disabled after tasks and devices have been
frozen and the CPU hotplug infrastructure is used for this purpose, we need
special CPU hotplug notifications that will help the CPU-hotplug-aware
subsystems distinguish normal CPU hotplug events from CPU hotplug events
related to a system-wide suspend or resume operation in progress.  This
patch introduces such notifications and causes them to be used during
suspend and resume transitions.  It also changes all of the
CPU-hotplug-aware subsystems to take these notifications into consideration
(for now they are handled in the same way as the corresponding "normal"
ones).

[oleg@tv-sign.ru: cleanups]
Signed-off-by: Rafael J. Wysocki 
Cc: Gautham R Shenoy 
Cc: Pavel Machek 
Signed-off-by: Oleg Nesterov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] i386: replace kmalloc+memset with kzalloc

2006-12-07T01:14:19+00:00

Signed-off-by: Andrew Morton 
Signed-off-by: Andi Kleen

[PATCH] cpu hotplug: use hotplug version of registration in late inits

2006-07-31T20:28:39+00:00

Use hotplug version of register_cpu_notifier in late init functions.

Signed-off-by: Chandra Seetharaman 
Cc: "Luck, Tony" 
Cc: Martin Schwidefsky 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only

2006-06-28T00:32:41+00:00

Make notifier_blocks associated with cpu_notifier as __cpuinitdata.

__cpuinitdata makes sure that the data is init time only unless
CONFIG_HOTPLUG_CPU is defined.

Signed-off-by: Chandra Seetharaman 
Cc: Ashok Raj 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] cpu hotplug: revert init patch submitted for 2.6.17

2006-06-28T00:32:40+00:00

In 2.6.17, there was a problem with cpu_notifiers and XFS.  I provided a
band-aid solution to solve that problem.  In the process, i undid all the
changes you both were making to ensure that these notifiers were available
only at init time (unless CONFIG_HOTPLUG_CPU is defined).

We deferred the real fix to 2.6.18.  Here is a set of patches that fixes the
XFS problem cleanly and makes the cpu notifiers available only at init time
(unless CONFIG_HOTPLUG_CPU is defined).

If CONFIG_HOTPLUG_CPU is defined then cpu notifiers are available at run
time.

This patch reverts the notifier_call changes made in 2.6.17

Signed-off-by: Chandra Seetharaman 
Cc: Ashok Raj 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] fix subarchitecture breakage with CONFIG_SCHED_SMT

2006-06-28T00:32:38+00:00

Commit 1e9f28fa1eb9773bf65bae08288c6a0a38eef4a7 ("[PATCH] sched: new
sched domain for representing multi-core") incorrectly made SCHED_SMT
and some of the structures it uses dependent on SMP.

However, this is wrong, the structures are only defined if X86_HT, so
SCHED_SMT has to depend on that as well.

The patch broke voyager, since it doesn't provide any of the multi-core
or hyperthreading structures.

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

[PATCH] x86: constify some parts of arch/i386/kernel/cpu/

2006-06-28T00:32:37+00:00

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

[PATCH] i386/x86-64: Emulate CPUID4 on AMD

2006-06-26T17:48:14+00:00

Intel systems report the cache level data from CPUID 4 in sysfs.
Add a CPUID 4 emulation for AMD CPUs to report the same
information for them. This allows programs to read this
information in a uniform way.

The AMD way to report this is less flexible so some assumptions
are hardcoded (e.g. no L3)

Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] Remove devinit and cpuinit from notifier_call definitions

2006-04-26T15:30:03+00:00

Few of the notifier_chain_register() callers use __init in the definition
of notifier_call.  It is incorrect as the function definition should be
available after the initializations (they do not unregister them during
initializations).

This patch fixes all such usages to _not_ have the notifier_call __init
section.

Signed-off-by: Chandra Seetharaman 
Signed-off-by: Linus Torvalds

[PATCH] x86: don't use cpuid.2 to determine cache info if cpuid.4 is supported

2006-03-27T16:44:44+00:00

Don't use cpuid.2 to determine cache info if cpuid.4 is supported.  The
exception is P4 trace cache.  We always use cpuid.2 to get trace cache
under P4.

Signed-off-by: Shaohua Li 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds