drm/amdgpu: Generate bad page threshold cper records

Generate CPER record when bad page threshold exceed and
commit to CPER ring.

v2: return -ENOMEM instead of false
v2: check return value of fill section function

Signed-off-by: Xiang Liu <[email protected]>
Reviewed-by: Tao Zhou <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Xiang Liu

drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c

@@ -207,7 +207,7 @@ int amdgpu_cper_entry_fill_bad_page_threshold_section(struct amdgpu_device *adev
 		   NONSTD_SEC_OFFSET(hdr->sec_cnt, idx));
 
 	amdgpu_cper_entry_fill_section_desc(adev, section_desc, true, false,
-					    CPER_SEV_FATAL, RUNTIME, NONSTD_SEC_LEN,
+					    CPER_SEV_NUM, RUNTIME, NONSTD_SEC_LEN,
 					    NONSTD_SEC_OFFSET(hdr->sec_cnt, idx));
 
 	section->hdr.valid_bits.err_info_cnt = 1;
@@ -308,6 +308,28 @@ int amdgpu_cper_generate_ue_record(struct amdgpu_device *adev,
 	return 0;
 }
 
+int amdgpu_cper_generate_bp_threshold_record(struct amdgpu_device *adev)
+{
+	struct cper_hdr *bp_threshold = NULL;
+	struct amdgpu_ring *ring = &adev->cper.ring_buf;
+	int ret;
+
+	bp_threshold = amdgpu_cper_alloc_entry(adev, AMDGPU_CPER_TYPE_BP_THRESHOLD, 1);
+	if (!bp_threshold) {
+		dev_err(adev->dev, "fail to alloc cper entry for bad page threshold record\n");
+		return -ENOMEM;
+	}
+
+	amdgpu_cper_entry_fill_hdr(adev, bp_threshold, AMDGPU_CPER_TYPE_BP_THRESHOLD, CPER_SEV_NUM);
+	ret = amdgpu_cper_entry_fill_bad_page_threshold_section(adev, bp_threshold, 0);
+	if (ret)
+		return ret;
+
+	amdgpu_cper_ring_write(ring, bp_threshold, bp_threshold->record_length);
+
+	return 0;
+}
+
 static enum cper_error_severity amdgpu_aca_err_type_to_cper_sev(struct amdgpu_device *adev,
 								enum aca_error_type aca_err_type)
 {

drivers/gpu/drm/amd/amdgpu/amdgpu_cper.h

@@ -95,6 +95,8 @@ int amdgpu_cper_generate_ue_record(struct amdgpu_device *adev,
 int amdgpu_cper_generate_ce_records(struct amdgpu_device *adev,
 				    struct aca_banks *banks,
 				    uint16_t bank_count);
+/* Bad page threshold is encoded into separated cper entry */
+int amdgpu_cper_generate_bp_threshold_record(struct amdgpu_device *adev);
 void amdgpu_cper_ring_write(struct amdgpu_ring *ring,
 			void *src, int count);
 int amdgpu_cper_init(struct amdgpu_device *adev);

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

@@ -716,6 +716,9 @@ int amdgpu_dpm_send_rma_reason(struct amdgpu_device *adev)
 	ret = smu_send_rma_reason(smu);
 	mutex_unlock(&adev->pm.mutex);
 
+	if (amdgpu_cper_generate_bp_threshold_record(adev))
+		dev_warn(adev->dev, "fail to generate bad page threshold cper records\n");
+
 	return ret;
 }