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| author | Zhao Yakui <yakui.zhao@intel.com> | 2010-01-08 21:29:58 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-01-15 23:05:00 -0500 |
| commit | 6a4e2b7503d1f630bface040cf0f5a7aac1fabdb (patch) | |
| tree | 16ab480f39dcb8cda72441c4824f7359ccf31607 | |
| parent | 61c39bb354a1f791ba6f562b766a72e508a036ee (diff) | |
| download | linux-rt-6a4e2b7503d1f630bface040cf0f5a7aac1fabdb.tar.gz | |
ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes
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>
| -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 cf761b904e4a..a52126e46307 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))) |