[PATCH] drm/amdgpu: Power down VCN and JPEG before disabling SMU features

Chengzhe Liu ChengZhe.Liu at amd.com
Fri Jun 18 09:17:11 UTC 2021


When unloading driver, if VCN is powered on, sending message
DisableAllSmuFeatures to SMU will cause SMU hang. We need to
power down VCN and JPEG before clean up SMU.

Signed-off-by: Chengzhe Liu <ChengZhe.Liu at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index cb375f1beebd..ebe672142808 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1453,10 +1453,14 @@ static int smu_hw_fini(void *handle)
 
 	if (smu->is_apu) {
 		smu_powergate_sdma(&adev->smu, true);
-		smu_dpm_set_vcn_enable(smu, false);
-		smu_dpm_set_jpeg_enable(smu, false);
 	}
 
+	smu_dpm_set_vcn_enable(smu, false);
+	smu_dpm_set_jpeg_enable(smu, false);
+
+	adev->vcn.cur_state = AMD_PG_STATE_GATE;
+	adev->jpeg.cur_state = AMD_PG_STATE_GATE;
+
 	if (!smu->pm_enabled)
 		return 0;
 
-- 
2.25.1



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