diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2024-06-21 11:25:30 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-06-27 17:10:35 -0400 |
| commit | 9da0f7736763aa0fbf63bb15060c6827135f3f67 (patch) | |
| tree | c4262fb7804b2d30a7d257bf5ce2df2556c50248 | |
| parent | 4fa0046f11d998c39689ece909b912527081e558 (diff) | |
drm/amdgpu: Fix register access violation
fault_status is read only register. fault_cntl
is not accessible from guest environment.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c | 8 |
3 files changed, 12 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c index e14acab5cceb..72109abe7c86 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c @@ -629,9 +629,11 @@ static bool gfxhub_v1_2_query_utcl2_poison_status(struct amdgpu_device *adev, status = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regVM_L2_PROTECTION_FAULT_STATUS); fed = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, FED); - /* reset page fault status */ - WREG32_P(SOC15_REG_OFFSET(GC, GET_INST(GC, xcc_id), - regVM_L2_PROTECTION_FAULT_STATUS), 1, ~1); + if (!amdgpu_sriov_vf(adev)) { + /* clear page fault status and address */ + WREG32_P(SOC15_REG_OFFSET(GC, GET_INST(GC, xcc_id), + regVM_L2_PROTECTION_FAULT_CNTL), 1, ~1); + } return fed; } diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 88b4644f8e96..b73136d390cc 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -672,7 +672,8 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(9, 4, 2))) return 0; - WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); + if (!amdgpu_sriov_vf(adev)) + WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status, vmhub); diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c index 7a1ff298417a..8d7267a013d2 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c @@ -566,9 +566,11 @@ static bool mmhub_v1_8_query_utcl2_poison_status(struct amdgpu_device *adev, status = RREG32_SOC15(MMHUB, hub_inst, regVM_L2_PROTECTION_FAULT_STATUS); fed = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, FED); - /* reset page fault status */ - WREG32_P(SOC15_REG_OFFSET(MMHUB, hub_inst, - regVM_L2_PROTECTION_FAULT_STATUS), 1, ~1); + if (!amdgpu_sriov_vf(adev)) { + /* clear page fault status and address */ + WREG32_P(SOC15_REG_OFFSET(MMHUB, hub_inst, + regVM_L2_PROTECTION_FAULT_STATUS), 1, ~1); + } return fed; } |