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| author | Samir Dhume <samir.dhume@amd.com> | 2023-07-17 18:09:38 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-16 18:33:59 +0300 |
| commit | dd12b858c246b81f6ad6d616857f04f1db33a544 (patch) | |
| tree | ee464c77eb0667a947deb2247cb88344bd9d1d84 /drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | |
| parent | 0fc7d79b45f6fd5129c69cccc41385b09b5e63c1 (diff) | |
| download | linux-dd12b858c246b81f6ad6d616857f04f1db33a544.tar.xz | |
drm/amdgpu/vcn: Skip vcn power-gating change for sriov
CG/PG is handled on the host side.
Signed-off-by: Samir Dhume <samir.dhume@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 9 |
1 files changed, 9 insertions, 0 deletions
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 503cd26d3fdd..f85d18cd74ec 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c @@ -1536,6 +1536,15 @@ 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; |