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| author | Victor Lu <victorchengchi.lu@amd.com> | 2023-10-04 20:24:15 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-17 06:46:27 +0100 |
| commit | 0288603040c38ccfeb5342f34a52673366d90038 (patch) | |
| tree | e965c18d2c632396435064fab0b6a7681c44ae2b /drivers/gpu | |
| parent | drm/amd/display: Guard against invalid RPTR/WPTR being set (diff) | |
| download | linux-0288603040c38ccfeb5342f34a52673366d90038.tar.xz linux-0288603040c38ccfeb5342f34a52673366d90038.zip | |
drm/amdgpu: Do not program VF copy regs in mmhub v1.8 under SRIOV (v2)
MC_VM_AGP_* registers should not be programmed by guest driver.
v2: move early return outside of loop
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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c index ea142611be1c..9b0146732e13 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c @@ -130,6 +130,9 @@ static void mmhub_v1_8_init_system_aperture_regs(struct amdgpu_device *adev) uint64_t value; int i; + if (amdgpu_sriov_vf(adev)) + return; + inst_mask = adev->aid_mask; for_each_inst(i, inst_mask) { /* Program the AGP BAR */ @@ -139,9 +142,6 @@ static void mmhub_v1_8_init_system_aperture_regs(struct amdgpu_device *adev) WREG32_SOC15(MMHUB, i, regMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); - if (amdgpu_sriov_vf(adev)) - return; - /* Program the system aperture low logical page number. */ WREG32_SOC15(MMHUB, i, regMC_VM_SYSTEM_APERTURE_LOW_ADDR, min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); |