diff options
| author |   Evan Quan <evan.quan@amd.com> | 2019-06-17 17:27:49 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-06-27 11:22:08 -0500 |
| commit | b213646519f4988ac1f40468e3fba81f7de7ccd7 (patch) | |
| tree | 8dd297b500e994d9004e89841a2b076e6f22b851 /drivers/gpu/drm/amd/powerplay | |
| parent | drm/ttm: return -EBUSY if waiting for busy BO fails (diff) | |
| download | linux-dev-b213646519f4988ac1f40468e3fba81f7de7ccd7.tar.xz linux-dev-b213646519f4988ac1f40468e3fba81f7de7ccd7.zip | |
drm/amd/powerplay: check prerequisite for VCN power gating
VCN DPM is a necessary prerequisite for VCN power gating.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c index 527f7fa442ef..137c2a34a606 100644 --- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c +++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c @@ -574,15 +574,19 @@ static int navi10_dpm_set_uvd_enable(struct smu_context *smu, bool enable) struct smu_power_gate *power_gate = &smu_power->power_gate; if (enable && power_gate->uvd_gated) { - ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1); - if (ret) - return ret; + if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UVD_BIT)) { + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1); + if (ret) + return ret; + } power_gate->uvd_gated = false; } else { if (!enable && !power_gate->uvd_gated) { - ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn); - if (ret) - return ret; + if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UVD_BIT)) { + ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn); + if (ret) + return ret; + } power_gate->uvd_gated = true; } } |