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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-09-10 02:56:50 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-09-11 19:44:37 +0400 |
| commit | ef4e03658420bbf91365647615460668c2510e79 (patch) | |
| tree | e5a566fc95349dfdcbc81e042801dd6648b2c326 /drivers/gpu/drm/radeon/ppsmc.h | |
| parent | 6ea4e84d209c1b49c90b52efff2ab0b1824619a6 (diff) | |
| download | linux-ef4e03658420bbf91365647615460668c2510e79.tar.xz | |
drm/radeon/dpm: handle bapm on trinity
bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs. This
patch adds support for enabling or disabling it.
For now disable it by default. Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.
This patch fixes hangs on boot on certain trinity
laptops when the system is on battery power.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/ppsmc.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/ppsmc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/ppsmc.h b/drivers/gpu/drm/radeon/ppsmc.h index 682842804bce..5670b8291285 100644 --- a/drivers/gpu/drm/radeon/ppsmc.h +++ b/drivers/gpu/drm/radeon/ppsmc.h @@ -163,6 +163,8 @@ typedef uint8_t PPSMC_Result; #define PPSMC_MSG_VCEPowerON ((uint32_t) 0x10f) #define PPSMC_MSG_DCE_RemoveVoltageAdjustment ((uint32_t) 0x11d) #define PPSMC_MSG_DCE_AllowVoltageAdjustment ((uint32_t) 0x11e) +#define PPSMC_MSG_EnableBAPM ((uint32_t) 0x120) +#define PPSMC_MSG_DisableBAPM ((uint32_t) 0x121) #define PPSMC_MSG_UVD_DPM_Config ((uint32_t) 0x124) |