diff options
| author | Yifan Zha <Yifan.Zha@amd.com> | 2022-08-01 06:11:20 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-01 22:11:40 +0300 |
| commit | 5818eae501c57e003de9e4f52a6001827e123a88 (patch) | |
| tree | b25e4b016a971878a8488553bf4bdfb6b0aa0571 /drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | |
| parent | c1026c6f319724dc88fc08d9d9d35bcbdf492b42 (diff) | |
| download | linux-5818eae501c57e003de9e4f52a6001827e123a88.tar.xz | |
drm/amdgpu: skip "Issue additional private vm invalidation to MMHUB" on SRIOV
[Why]
vm_l2_bank_select_reserved_cid2 is a PF_only register
that cannot be programmed by VF. This feature is only
support HDP using GPUVM page tables to access FB memory
which should be disabled on SRIOV.
[How]
Disable the feature on VF.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c index 497f52283a30..592729cb0f48 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c @@ -234,7 +234,8 @@ static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid, /* Issue additional private vm invalidation to MMHUB */ if ((vmhub != AMDGPU_GFXHUB_0) && - (hub->vm_l2_bank_select_reserved_cid2)) { + (hub->vm_l2_bank_select_reserved_cid2) && + !amdgpu_sriov_vf(adev)) { inv_req = RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2); /* bit 25: RSERVED_CACHE_PRIVATE_INVALIDATION */ inv_req |= (1 << 25); |