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x86, realmode: Move ACPI wakeup to unified realmode code

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Migrated ACPI wakeup code to the real-mode blob.
Code existing in .x86_trampoline  can be completely
removed. Static descriptor table in wakeup_asm.S is
courtesy of H. Peter Anvin.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-7-git-send-email-jarkko.sakkinen@intel.com
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Jarkko Sakkinen
2012-05-08 21:22:29 +03:00
committed by H. Peter Anvin
parent 48927bbb97
commit c9b77ccb52
35 changed files with 111 additions and 565 deletions
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8
drivers/acpi/sleep.c
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@@ -25,6 +25,8 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <asm/realmode.h>
#include "internal.h"
#include "sleep.h"
@@ -91,13 +93,13 @@ static struct notifier_block tts_notifier = {
static int acpi_sleep_prepare(u32 acpi_state)
{
#ifdef CONFIG_ACPI_SLEEP
unsigned long wakeup_pa = real_mode_header.wakeup_start;
/* do we have a wakeup address for S2 and S3? */
if (acpi_state == ACPI_STATE_S3) {
if (!acpi_wakeup_address) {
if (!wakeup_pa)
return -EFAULT;
}
acpi_set_firmware_waking_vector(
(acpi_physical_address)acpi_wakeup_address);
(acpi_physical_address)wakeup_pa);
}
ACPI_FLUSH_CPU_CACHE();