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| author | Yinghai Lu <yinghai@kernel.org> | 2009-11-10 18:27:23 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-11 20:14:32 +0100 |
| commit | 196cf0d67acad70ebb2572da489d5cc7066cdd05 (patch) | |
| tree | ba475e8afc56aeb6392d146a7cb9bdae7ff65279 /arch/x86/include/asm/acpi.h | |
| parent | 0420101c075530c65ba00b6fe7291b126fbfc5d2 (diff) | |
| download | blackbird-obmc-linux-196cf0d67acad70ebb2572da489d5cc7066cdd05.tar.gz blackbird-obmc-linux-196cf0d67acad70ebb2572da489d5cc7066cdd05.zip | |
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>
Diffstat (limited to 'arch/x86/include/asm/acpi.h')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index e3d4a0daff57..60d2b2db0bc5 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -118,7 +118,7 @@ extern void acpi_restore_state_mem(void); extern unsigned long acpi_wakeup_address; /* early initialization routine */ -extern void acpi_reserve_bootmem(void); +extern void acpi_reserve_wakeup_memory(void); /* * Check if the CPU can handle C2 and deeper |
