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| author | Victor Lu <victorchengchi.lu@amd.com> | 2023-10-11 23:27:59 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-10 01:01:42 +0300 |
| commit | 0b1695710ab8be263a5c19f17240c6a44b4b0a3e (patch) | |
| tree | ab6674e073435e97ce8f9128c7b04c7b490c728f | |
| parent | a78b4814697251419f3460bb124aaa5689e65055 (diff) | |
| download | linux-0b1695710ab8be263a5c19f17240c6a44b4b0a3e.tar.xz | |
drm/amdgpu: Do not program PF-only regs in hdp_v4_0.c under SRIOV (v2)
The following regs can only be programmed by the PF:
HDP_MISC_CNTL
HDP_NONSURFACE_BASE
HDP_NONSURFACE_BASE_HI
v2: update commit message
Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Reviewed-by: Samir Dhume <samir.dhume@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c index 3f3a6445c006..49e934975719 100644 --- a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c @@ -145,6 +145,10 @@ static void hdp_v4_0_init_registers(struct amdgpu_device *adev) break; } + /* Do not program registers if VF */ + if (amdgpu_sriov_vf(adev)) + return; + WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); if (amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 0)) |