diff options
| author | Zhao Yakui <yakui.zhao@intel.com> | 2010-01-08 21:29:58 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-02-09 04:50:44 -0800 |
| commit | 3b4f785d6fd9df90b783e9a6ce9414884877593e (patch) | |
| tree | 20e6f733e78dc0e8ec73ae6566f9df8c0b188786 /drivers | |
| parent | 0d48a1a716844bc72f0e105418261024c75ce494 (diff) | |
ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes
commit 6a4e2b7503d1f630bface040cf0f5a7aac1fabdb upstream.
If the BIOS pokes the system-wide OSC bits to see if Linux
supports evaluating _OST after a _PPC change notification,
answer yes.
Also, fix an oversight where we neglected to set the OSC
bit advertising processor aggregator device support
when acpi-pad is compiled as a module.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/bus.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 0c1ad3105da..49f6ededb6b 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -490,9 +490,14 @@ static void acpi_bus_osc_support(void) capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ -#ifdef CONFIG_ACPI_PROCESSOR_AGGREGATOR +#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\ + defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT; #endif + +#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE) + capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT; +#endif if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return; if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) |