]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] i386: add command line option "local_apic_timer_c2_ok"
authorThomas Gleixner <tglx@linutronix.de>
Fri, 23 Mar 2007 15:08:01 +0000 (16:08 +0100)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Fri, 23 Mar 2007 17:21:02 +0000 (10:21 -0700)
commite585bef815c0315f2730d7bb4e15b82602454efd
tree914d777ba187e656a89075398f81e485885f0aab
parent296d93cd0205433489b0689533426ce0a8cf2dec
[PATCH] i386: add command line option "local_apic_timer_c2_ok"

It turned out that it is almost impossible to trust ACPI, BIOS & Co.
regarding the C states. This was the reason to switch the local apic
timer off in C2 state already. OTOH there are sane and well behaving
systems, which get punished by that decision.

Allow the user to confirm that the local apic timer is trustworthy in C2
state. This keeps the default behaviour on the safe side.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/kernel-parameters.txt
arch/i386/kernel/apic.c
drivers/acpi/processor_idle.c
include/asm-i386/apic.h