drm/amdgpu: Skip access gfx11 golden registers under SRIOV

ZhenGuo Yin · alexdeucher · commit 04fcc3fec5db · 2023-11-30T18:21:30.000-05:00
[Why]
Golden registers are PF-only registers on gfx11.
RLCG interface will return "out-of-range" under SRIOV VF.

[How]
Skip access gfx11 golden registers under SRIOV.

Reviewed-by: Horace Chen &lt;horace.chen@amd.com&gt;
Signed-off-by: ZhenGuo Yin &lt;zhenguo.yin@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -293,6 +293,9 @@ static void gfx_v11_0_set_kiq_pm4_funcs(struct amdgpu_device *adev)
 
 static void gfx_v11_0_init_golden_registers(struct amdgpu_device *adev)
 {
+	if (amdgpu_sriov_vf(adev))
+		return;
+
 	switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
 	case IP_VERSION(11, 0, 1):
 	case IP_VERSION(11, 0, 4):

Original file line number	Diff line number	Diff line change
`@@ -293,6 +293,9 @@ static void gfx_v11_0_set_kiq_pm4_funcs(struct amdgpu_device *adev)`
`293`	`293`
`294`	`294`	`static void gfx_v11_0_init_golden_registers(struct amdgpu_device *adev)`
`295`	`295`	`{`
	`296`	`+ if (amdgpu_sriov_vf(adev))`
	`297`	`+ return;`
	`298`	`+`
`296`	`299`	`switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {`
`297`	`300`	`case IP_VERSION(11, 0, 1):`
`298`	`301`	`case IP_VERSION(11, 0, 4):`