| commit | 196cf0d67acad70ebb2572da489d5cc7066cdd05 | |
| author | Yinghai Lu <yinghai@kernel.org> | |
| Wed, 11 Nov 2009 02:27:23 +0000 (10 18:27 -0800) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Wed, 11 Nov 2009 19:14:32 +0000 (11 20:14 +0100) | ||
| tree | ba475e8afc56aeb6392d146a7cb9bdae7ff65279 | treesnapshot (tar.gz zip) |
| parent | 0420101c075530c65ba00b6fe7291b126fbfc5d2 | commitdiff |
x86: Make sure wakeup trampoline code is below 1MB
Instead of using bootmem, try find_e820_area()/reserve_early(),
and call acpi_reserve_memory() early, to allocate the wakeup
trampoline code area below 1M.
This is more reliable, and it also removes a dependency on
bootmem.
-v2: change function name to acpi_reserve_wakeup_memory(),
as suggested by Rafael.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <4AFA210B.3020207@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Instead of using bootmem, try find_e820_area()/reserve_early(),
and call acpi_reserve_memory() early, to allocate the wakeup
trampoline code area below 1M.
This is more reliable, and it also removes a dependency on
bootmem.
-v2: change function name to acpi_reserve_wakeup_memory(),
as suggested by Rafael.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <4AFA210B.3020207@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| arch/x86/include/asm/acpi.h | diffblobblamehistory | |
| arch/x86/kernel/acpi/sleep.c | diffblobblamehistory | |
| arch/x86/kernel/setup.c | diffblobblamehistory |