diff options
| author | Jarkko Sakkinen <jarkko.sakkinen@intel.com> | 2012-05-08 20:22:29 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-08 20:46:05 +0200 |
| commit | c9b77ccb52a5c77233b0e557b7d4417b00ef4012 (patch) | |
| tree | 152d1c9b60796db21458583a76b57f995c4cd3bf /drivers/acpi/sleep.c | |
| parent | x86, realmode: Move SMP trampoline to unified realmode code (diff) | |
| download | linux-c9b77ccb52a5c77233b0e557b7d4417b00ef4012.tar.xz linux-c9b77ccb52a5c77233b0e557b7d4417b00ef4012.zip | |
x86, realmode: Move ACPI wakeup to unified realmode code
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>
Diffstat (limited to 'drivers/acpi/sleep.c')
| -rw-r--r-- | drivers/acpi/sleep.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index eb6fd233764b..e77aa4a1c9f6 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -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(); |