drm/amdgpu: add sdma ras error query callback for aldebaran

The callback will be invoked to harvest all kinds
of sdma ras error
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Dennis Li<Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v4_4.c

@@ -21,8 +21,195 @@
  *
  */
 #include "amdgpu.h"
+#include "sdma/sdma_4_4_0_offset.h"
+#include "sdma/sdma_4_4_0_sh_mask.h"
+#include "soc15.h"
+#include "amdgpu_ras.h"
+
+#define SDMA1_REG_OFFSET 0x600
+#define SDMA2_REG_OFFSET 0x1cda0
+#define SDMA3_REG_OFFSET 0x1d1a0
+#define SDMA4_REG_OFFSET 0x1d5a0
+
+/* helper function that allow only use sdma0 register offset
+ * to calculate register offset for all the sdma instances */
+static uint32_t sdma_v4_4_get_reg_offset(struct amdgpu_device *adev,
+					 uint32_t instance,
+					 uint32_t offset)
+{
+	uint32_t sdma_base = adev->reg_offset[SDMA0_HWIP][0][0];
+
+	switch (instance) {
+	case 0:
+		return (sdma_base + offset);
+	case 1:
+		return (sdma_base + SDMA1_REG_OFFSET + offset);
+	case 2:
+		return (sdma_base + SDMA2_REG_OFFSET + offset);
+	case 3:
+		return (sdma_base + SDMA3_REG_OFFSET + offset);
+	case 4:
+		return (sdma_base + SDMA4_REG_OFFSET + offset);
+	default:
+		break;
+	}
+	return 0;
+}
+
+static const struct soc15_ras_field_entry sdma_v4_4_ras_fields[] = {
+	{ "SDMA_MBANK_DATA_BUF0_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF0_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF1_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF1_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF2_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF2_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF3_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF3_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF4_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF4_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF5_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF5_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF6_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF6_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF7_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF7_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF8_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF8_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF9_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF9_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF10_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF10_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF11_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF11_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF12_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF12_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF13_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF13_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF14_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF14_SED),
+	0, 0,
+	},
+	{ "SDMA_MBANK_DATA_BUF15_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF15_SED),
+	0, 0,
+	},
+	{ "SDMA_UCODE_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_UCODE_BUF_SED),
+	0, 0,
+	},
+	{ "SDMA_RB_CMD_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_RB_CMD_BUF_SED),
+	0, 0,
+	},
+	{ "SDMA_IB_CMD_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_IB_CMD_BUF_SED),
+	0, 0,
+	},
+	{ "SDMA_UTCL1_RD_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_UTCL1_RD_FIFO_SED),
+	0, 0,
+	},
+	{ "SDMA_UTCL1_RDBST_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_UTCL1_RDBST_FIFO_SED),
+	0, 0,
+	},
+	{ "SDMA_DATA_LUT_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_DATA_LUT_FIFO_SED),
+	0, 0,
+	},
+	{ "SDMA_SPLIT_DATA_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_SPLIT_DATA_BUF_SED),
+	0, 0,
+	},
+	{ "SDMA_MC_WR_ADDR_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_MC_WR_ADDR_FIFO_SED),
+	0, 0,
+	},
+	{ "SDMA_MC_RDRET_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, regSDMA0_EDC_COUNTER2),
+	SOC15_REG_FIELD(SDMA0_EDC_COUNTER2, SDMA_MC_WR_ADDR_FIFO_SED),
+	0, 0,
+	},
+};
+
+static void sdma_v4_4_get_ras_error_count(struct amdgpu_device *adev,
+					  uint32_t value,
+					  uint32_t instance,
+					  uint32_t *sec_count)
+{
+	uint32_t i;
+	uint32_t sec_cnt;
+
+	/* double bits error (multiple bits) error detection is not supported */
+	for (i = 0; i < ARRAY_SIZE(sdma_v4_4_ras_fields); i++) {
+		/* the SDMA_EDC_COUNTER register in each sdma instance
+		 * shares the same sed shift_mask
+		 * */
+		sec_cnt = (value &
+			sdma_v4_4_ras_fields[i].sec_count_mask) >>
+			sdma_v4_4_ras_fields[i].sec_count_shift;
+		if (sec_cnt) {
+			dev_info(adev->dev, "Detected %s in SDMA%d, SED %d\n",
+				 sdma_v4_4_ras_fields[i].name,
+				 instance, sec_cnt);
+			*sec_count += sec_cnt;
+		}
+	}
+}
+
+static int sdma_v4_4_query_ras_error_count(struct amdgpu_device *adev,
+					   uint32_t instance,
+					   void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+	uint32_t sec_count = 0;
+	uint32_t reg_value = 0;
+	uint32_t reg_offset = 0;
+
+	reg_offset = sdma_v4_4_get_reg_offset(adev, instance, regSDMA0_EDC_COUNTER);
+	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;
+
+	return 0;
+};
 
 const struct amdgpu_sdma_ras_funcs sdma_v4_4_ras_funcs = {
 	.ras_late_init = amdgpu_sdma_ras_late_init,
 	.ras_fini = amdgpu_sdma_ras_fini,
+	.query_ras_error_count = sdma_v4_4_query_ras_error_count,
 };