[PATCH 2/7] drm/amdgpu/vcn : Skip vcn power-gating change for sriov

[Samir Dhume]

Signed-off-by: Samir Dhume 
---
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 9 +
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c 
b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
index 550ac040b4be..411c1d802823 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
@@ -1317,6 +1317,15 @@ static int vcn_v4_0_3_set_powergating_state(void *handle,
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
 
+   /* for SRIOV, guest should not control VCN Power-gating
+* MMSCH FW should control Power-gating and clock-gating
+* guest should avoid touching CGC and PG
+*/
+   if (amdgpu_sriov_vf(adev)) {
+   adev->vcn.cur_state = AMD_PG_STATE_UNGATE;
+   return 0;
+   }
+
if (state == adev->vcn.cur_state)
return 0;
 
-- 
2.34.1

[PATCH 2/7] drm/amdgpu/vcn : Skip vcn power-gating change for sriov

[Samir Dhume]

Signed-off-by: Samir Dhume 
---
 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 9 +
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c 
b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
index 550ac040b4be..411c1d802823 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
@@ -1317,6 +1317,15 @@ static int vcn_v4_0_3_set_powergating_state(void *handle,
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
 
+   /* for SRIOV, guest should not control VCN Power-gating
+* MMSCH FW should control Power-gating and clock-gating
+* guest should avoid touching CGC and PG
+*/
+   if (amdgpu_sriov_vf(adev)) {
+   adev->vcn.cur_state = AMD_PG_STATE_UNGATE;
+   return 0;
+   }
+
if (state == adev->vcn.cur_state)
return 0;
 
-- 
2.34.1