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| author | Akshu Agrawal <akshu.agrawal@amd.com> | 2018-09-24 15:48:02 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-10-09 17:01:03 -0500 |
| commit | 51ef434a15b450bfbef1e06cc87ee4e98a224486 (patch) | |
| tree | 7c08628d37e6ec76feedffc53dc1e93bcea0301b /drivers/gpu/drm/amd/powerplay | |
| parent | 479afffe214759276afece3797b1677c7e1b39d4 (diff) | |
| download | lwn-51ef434a15b450bfbef1e06cc87ee4e98a224486.tar.gz lwn-51ef434a15b450bfbef1e06cc87ee4e98a224486.zip | |
drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD
We observe black lines (underflow) on display when playing a
4K video with UVD. On Disabling Low memory P state this issue is
not seen.
Multiple runs of power measurement shows no imapct.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Satyajit Sahu <satyajit.sahu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c index 53cf787560f7..fef111ddb736 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c @@ -1228,14 +1228,17 @@ static int smu8_dpm_force_dpm_level(struct pp_hwmgr *hwmgr, static int smu8_dpm_powerdown_uvd(struct pp_hwmgr *hwmgr) { - if (PP_CAP(PHM_PlatformCaps_UVDPowerGating)) + if (PP_CAP(PHM_PlatformCaps_UVDPowerGating)) { + smu8_nbdpm_pstate_enable_disable(hwmgr, true, true); return smum_send_msg_to_smc(hwmgr, PPSMC_MSG_UVDPowerOFF); + } return 0; } static int smu8_dpm_powerup_uvd(struct pp_hwmgr *hwmgr) { if (PP_CAP(PHM_PlatformCaps_UVDPowerGating)) { + smu8_nbdpm_pstate_enable_disable(hwmgr, false, true); return smum_send_msg_to_smc_with_parameter( hwmgr, PPSMC_MSG_UVDPowerON, |