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authorMukul Joshi <mukul.joshi@amd.com>2021-03-24 18:51:35 +0300
committerAlex Deucher <alexander.deucher@amd.com>2021-04-21 04:45:17 +0300
commitceb47e0d84d9d327ef3cd7091fb54f612394f189 (patch)
tree7e5909849ce474ad92436abce27dd644b20e0fa7 /drivers/gpu
parent1f0d8e3781f40c6cae7cb68a4cccfc54dd4ad3a1 (diff)
downloadlinux-ceb47e0d84d9d327ef3cd7091fb54f612394f189.tar.xz
drm/amdgpu: Fix SDMA RAS error reporting on Aldebaran
Fix the following issues with SDMA RAS error reporting: 1. Read the EDC_COUNTER2 register also to fetch error counts for all sub-blocks in SDMA. 2. SDMA RAS on Aldebaran suports single-bit uncorrectable errors only. So, report error count in UE count instead of CE count. Signed-off-by: Mukul Joshi <mukul.joshi@amd.com> Reviewed-By: John Clements <John.Clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c35
1 files changed, 28 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c
index 6fcb95c89999..bf95007f0843 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c
@@ -160,6 +160,7 @@ static const struct soc15_ras_field_entry sdma_v4_4_ras_fields[] = {
};
static void sdma_v4_4_get_ras_error_count(struct amdgpu_device *adev,
+ uint32_t reg_offset,
uint32_t value,
uint32_t instance,
uint32_t *sec_count)
@@ -169,6 +170,9 @@ static void sdma_v4_4_get_ras_error_count(struct amdgpu_device *adev,
/* double bits error (multiple bits) error detection is not supported */
for (i = 0; i < ARRAY_SIZE(sdma_v4_4_ras_fields); i++) {
+ if (sdma_v4_4_ras_fields[i].reg_offset != reg_offset)
+ continue;
+
/* the SDMA_EDC_COUNTER register in each sdma instance
* shares the same sed shift_mask
* */
@@ -197,13 +201,30 @@ static int sdma_v4_4_query_ras_error_count(struct amdgpu_device *adev,
reg_value = RREG32(reg_offset);
/* double bit error is not supported */
if (reg_value)
- sdma_v4_4_get_ras_error_count(adev, reg_value, instance, &sec_count);
- /* err_data->ce_count should be initialized to 0
- * before calling into this function */
- err_data->ce_count += sec_count;
- /* double bit error is not supported
- * set ue count to 0 */
- err_data->ue_count = 0;
+ sdma_v4_4_get_ras_error_count(adev, regSDMA0_EDC_COUNTER, reg_value,
+ instance, &sec_count);
+
+ reg_offset = sdma_v4_4_get_reg_offset(adev, instance, regSDMA0_EDC_COUNTER2);
+ reg_value = RREG32(reg_offset);
+ /* double bit error is not supported */
+ if (reg_value)
+ sdma_v4_4_get_ras_error_count(adev, regSDMA0_EDC_COUNTER2, reg_value,
+ instance, &sec_count);
+
+ /*
+ * err_data->ue_count should be initialized to 0
+ * before calling into this function
+ *
+ * SDMA RAS supports single bit uncorrectable error detection.
+ * So, increment uncorrectable error count.
+ */
+ err_data->ue_count += sec_count;
+
+ /*
+ * SDMA RAS does not support correctable errors.
+ * Set ce count to 0.
+ */
+ err_data->ce_count = 0;
return 0;
};