[PATCH 3/5] drm/amdgpu: Add ras helper to query boot errors
Hawking Zhang
Hawking.Zhang at amd.com
Tue Jan 2 03:43:39 UTC 2024
Add ras helper function to query boot time gpu
errors.
Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 95 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 15 +++-
3 files changed, 112 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 616b6c911767..db44ec857a31 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1328,6 +1328,9 @@ int emu_soc_asic_init(struct amdgpu_device *adev);
#define WREG32_FIELD_OFFSET(reg, offset, field, val) \
WREG32(mm##reg + offset, (RREG32(mm##reg + offset) & ~REG_FIELD_MASK(reg, field)) | (val) << REG_FIELD_SHIFT(reg, field))
+#define AMDGPU_SMN_TARGET_AID(x) ((u64)(x) << 32)
+#define AMDGPU_SMN_CROSS_AID (1ULL << 34)
+#define AMDGPU_GET_REG_FIELD(x, h, l) (((x) & GENMASK_ULL(h, l)) >> (l))
/*
* BIOS helpers.
*/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 39399d0f2ce5..5f302b7693b3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -3764,3 +3764,98 @@ int amdgpu_ras_error_statistic_ce_count(struct ras_err_data *err_data,
return 0;
}
+
+#define mmMP0_SMN_C2PMSG_92 0x1609C
+#define mmMP0_SMN_C2PMSG_126 0x160BE
+static void amdgpu_ras_boot_time_error_reporting(struct amdgpu_device *adev,
+ u32 instance, u32 boot_error)
+{
+ u32 socket_id, aid_id, hbm_id;
+ u32 reg_data;
+ u64 reg_addr;
+
+ socket_id = AMDGPU_RAS_GPU_ERR_SOCKET_ID(boot_error);
+ aid_id = AMDGPU_RAS_GPU_ERR_AID_ID(boot_error);
+ hbm_id = AMDGPU_RAS_GPU_ERR_HBM_ID(boot_error);
+
+ if (instance)
+ reg_addr = (mmMP0_SMN_C2PMSG_92 << 2) +
+ AMDGPU_SMN_TARGET_AID(instance) +
+ AMDGPU_SMN_CROSS_AID;
+ else
+ reg_addr = (mmMP0_SMN_C2PMSG_92 << 2);
+
+ reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
+ dev_err(adev->dev, "socket: %d, aid: %d, firmware boot failed, fw status is 0x%x\n",
+ socket_id, aid_id, reg_data);
+
+ if (AMDGPU_RAS_GPU_ERR_MEM_TRAINING(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, memory training failed\n",
+ socket_id, aid_id, hbm_id);
+
+ if (AMDGPU_RAS_GPU_ERR_FW_LOAD(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, firmware load failed at boot time\n",
+ socket_id, aid_id);
+
+ if (AMDGPU_RAS_GPU_ERR_WAFL_LINK_TRAINING(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, wafl link training failed\n",
+ socket_id, aid_id);
+
+ if (AMDGPU_RAS_GPU_ERR_XGMI_LINK_TRAINING(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, xgmi link training failed\n",
+ socket_id, aid_id);
+
+ if (AMDGPU_RAS_GPU_ERR_USR_CP_LINK_TRAINING(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, usr cp link training failed\n",
+ socket_id, aid_id);
+
+ if (AMDGPU_RAS_GPU_ERR_USR_DP_LINK_TRAINING(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, usr dp link training failed\n",
+ socket_id, aid_id);
+
+ if (AMDGPU_RAS_GPU_ERR_HBM_MEM_TEST(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, hbm memory test failed\n",
+ socket_id, aid_id, hbm_id);
+
+ if (AMDGPU_RAS_GPU_ERR_HBM_BIST_TEST(boot_error))
+ dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, hbm bist test failed\n",
+ socket_id, aid_id, hbm_id);
+}
+
+static int amdgpu_ras_wait_for_boot_complete(struct amdgpu_device *adev,
+ u32 instance, u32 *boot_error)
+{
+ u32 reg_addr;
+ u32 reg_data;
+ int retry_loop;
+
+ if (instance)
+ reg_addr = (mmMP0_SMN_C2PMSG_126 << 2) +
+ AMDGPU_SMN_TARGET_AID(instance) +
+ AMDGPU_SMN_CROSS_AID;
+ else
+ reg_addr = (mmMP0_SMN_C2PMSG_126 << 2);
+
+ for (retry_loop = 0; retry_loop < 1000; retry_loop++) {
+ reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
+ if (AMDGPU_RAS_GPU_ERR_BOOT_STATUS(reg_data)) {
+ *boot_error = reg_data;
+ return 0;
+ }
+ msleep(1);
+ }
+
+ *boot_error = reg_data;
+ return -ETIME;
+}
+
+void amdgpu_ras_query_boot_status(struct amdgpu_device *adev, u32 num_instances)
+{
+ u32 boot_error = 0;
+ u32 i;
+
+ for (i = 0; i < num_instances; i++) {
+ if (amdgpu_ras_wait_for_boot_complete(adev, i, &boot_error))
+ amdgpu_ras_boot_time_error_reporting(adev, i, boot_error);
+ }
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index 76fb85628716..5785b705c692 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -32,6 +32,19 @@
struct amdgpu_iv_entry;
+#define AMDGPU_RAS_GPU_ERR_MEM_TRAINING(x) AMDGPU_GET_REG_FIELD(x, 0, 0)
+#define AMDGPU_RAS_GPU_ERR_FW_LOAD(x) AMDGPU_GET_REG_FIELD(x, 1, 1)
+#define AMDGPU_RAS_GPU_ERR_WAFL_LINK_TRAINING(x) AMDGPU_GET_REG_FIELD(x, 2, 2)
+#define AMDGPU_RAS_GPU_ERR_XGMI_LINK_TRAINING(x) AMDGPU_GET_REG_FIELD(x, 3, 3)
+#define AMDGPU_RAS_GPU_ERR_USR_CP_LINK_TRAINING(x) AMDGPU_GET_REG_FIELD(x, 4, 4)
+#define AMDGPU_RAS_GPU_ERR_USR_DP_LINK_TRAINING(x) AMDGPU_GET_REG_FIELD(x, 5, 5)
+#define AMDGPU_RAS_GPU_ERR_HBM_MEM_TEST(x) AMDGPU_GET_REG_FIELD(x, 6, 6)
+#define AMDGPU_RAS_GPU_ERR_HBM_BIST_TEST(x) AMDGPU_GET_REG_FIELD(x, 7, 7)
+#define AMDGPU_RAS_GPU_ERR_SOCKET_ID(x) AMDGPU_GET_REG_FIELD(x, 10, 8)
+#define AMDGPU_RAS_GPU_ERR_AID_ID(x) AMDGPU_GET_REG_FIELD(x, 12, 11)
+#define AMDGPU_RAS_GPU_ERR_HBM_ID(x) AMDGPU_GET_REG_FIELD(x, 13, 13)
+#define AMDGPU_RAS_GPU_ERR_BOOT_STATUS(x) AMDGPU_GET_REG_FIELD(x, 31, 31)
+
#define AMDGPU_RAS_FLAG_INIT_BY_VBIOS (0x1 << 0)
/* position of instance value in sub_block_index of
* ta_ras_trigger_error_input, the sub block uses lower 12 bits
@@ -818,5 +831,5 @@ int amdgpu_ras_error_statistic_ce_count(struct ras_err_data *err_data,
int amdgpu_ras_error_statistic_ue_count(struct ras_err_data *err_data,
struct amdgpu_smuio_mcm_config_info *mcm_info,
struct ras_err_addr *err_addr, u64 count);
-
+void amdgpu_ras_query_boot_status(struct amdgpu_device *adev, u32 num_instances);
#endif
--
2.17.1
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