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authorVictor Lu <victorchengchi.lu@amd.com>2023-10-11 23:27:59 +0300
committerAlex Deucher <alexander.deucher@amd.com>2023-11-10 01:01:42 +0300
commit0b1695710ab8be263a5c19f17240c6a44b4b0a3e (patch)
treeab6674e073435e97ce8f9128c7b04c7b490c728f
parenta78b4814697251419f3460bb124aaa5689e65055 (diff)
downloadlinux-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.c4
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))