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drm/amdgpu: Introduce VF critical region check for RAS poison injection

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The SRIOV guest send requet to host to check whether the poison
injection address is in VF critical region or not via mabox.

Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Shravan Kumar Gande <Shravankumar.Gande@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiang Liu
2025-08-19 12:51:28 +08:00
committed by Alex Deucher
parent 18f769ff36
commit f1fdeb3d07
5 changed files with 79 additions and 0 deletions
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14
drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
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@@ -202,6 +202,9 @@ send_request:
case IDH_REQ_RAS_CPER_DUMP:
event = IDH_RAS_CPER_DUMP_READY;
break;
case IDH_REQ_RAS_CHK_CRITI:
event = IDH_REQ_RAS_CHK_CRITI_READY;
break;
default:
break;
}
@@ -556,6 +559,16 @@ static int xgpu_nv_req_ras_bad_pages(struct amdgpu_device *adev)
return xgpu_nv_send_access_requests(adev, IDH_REQ_RAS_BAD_PAGES);
}
static int xgpu_nv_check_vf_critical_region(struct amdgpu_device *adev, u64 addr)
{
uint32_t addr_hi, addr_lo;
addr_hi = (uint32_t)(addr >> 32);
addr_lo = (uint32_t)(addr & 0xFFFFFFFF);
return xgpu_nv_send_access_requests_with_param(
adev, IDH_REQ_RAS_CHK_CRITI, addr_hi, addr_lo, 0);
}
const struct amdgpu_virt_ops xgpu_nv_virt_ops = {
.req_full_gpu = xgpu_nv_request_full_gpu_access,
.rel_full_gpu = xgpu_nv_release_full_gpu_access,
@@ -569,4 +582,5 @@ const struct amdgpu_virt_ops xgpu_nv_virt_ops = {
.req_ras_err_count = xgpu_nv_req_ras_err_count,
.req_ras_cper_dump = xgpu_nv_req_ras_cper_dump,
.req_bad_pages = xgpu_nv_req_ras_bad_pages,
.req_ras_chk_criti = xgpu_nv_check_vf_critical_region
};