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authorVictor Lu <victorchengchi.lu@amd.com>2023-10-04 14:24:15 -0400
committerAlex Deucher <alexander.deucher@amd.com>2023-11-17 00:46:27 -0500
commit0288603040c38ccfeb5342f34a52673366d90038 (patch)
treee965c18d2c632396435064fab0b6a7681c44ae2b /drivers
parent1ffa8602e39b89469dc703ebab7a7e44c33da0f7 (diff)
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')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c6
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);