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authorAlex Deucher <alexander.deucher@amd.com>2013-09-10 02:56:50 +0400
committerAlex Deucher <alexander.deucher@amd.com>2013-09-11 19:44:37 +0400
commitef4e03658420bbf91365647615460668c2510e79 (patch)
treee5a566fc95349dfdcbc81e042801dd6648b2c326 /drivers/gpu/drm/radeon/ppsmc.h
parent6ea4e84d209c1b49c90b52efff2ab0b1824619a6 (diff)
downloadlinux-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.h2
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)