Add interface to collect STB logs.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
Reviewed-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Reviewed-by: Luben Tuikov <luben.tuikov@xxxxxxx>
---
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h | 15 +++++++++++++++
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 18 ++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index 7a06021a58f0..4301403af761 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -474,6 +474,12 @@ struct cmn2asic_mapping {
int map_to;
};
+struct stb_context {
+ uint32_t stb_buf_size;
+ bool enabled;
+ spinlock_t lock;
+};
+
#define WORKLOAD_POLICY_MAX 7
struct smu_context
{
@@ -561,6 +567,8 @@ struct smu_context
uint16_t cpu_core_num;
struct smu_user_dpm_profile user_dpm_profile;
+
+ struct stb_context stb_context;
};
struct i2c_adapter;
@@ -1268,6 +1276,12 @@ struct pptable_funcs {
* @get_ecc_table: message SMU to get ECC INFO table.
*/
ssize_t (*get_ecc_info)(struct smu_context *smu, void *table);
+
+
+ /**
+ * @stb_collect_info: Collects Smart Trace Buffers data.
+ */
+ int (*stb_collect_info)(struct smu_context *smu, void *buf, uint32_t size);
};
typedef enum {
@@ -1405,6 +1419,7 @@ int smu_set_light_sbr(struct smu_context *smu, bool enable);
int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event,
uint64_t event_arg);
int smu_get_ecc_info(struct smu_context *smu, void *umc_ecc);
+int smu_stb_collect_info(struct smu_context *smu, void *buff, uint32_t size);
#endif
#endif
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index fd3b6b460b12..97bafba4c5c9 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -3175,3 +3175,21 @@ int smu_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event,
return ret;
}
+
+int smu_stb_collect_info(struct smu_context *smu, void *buf, uint32_t size)
+{
+
+ if (!smu->ppt_funcs->stb_collect_info || !smu->stb_context.enabled)
+ return -EOPNOTSUPP;
+
+ /* Confirm the buffer allocated is of correct size */
+ if (size != smu->stb_context.stb_buf_size)
+ return -EINVAL;
+
+ /*
+ * No need to lock smu mutex as we access STB directly through MMIO
+ * and not going through SMU messaging route (for now at least).
+ * For registers access rely on implementation internal locking.
+ */
+ return smu->ppt_funcs->stb_collect_info(smu, buf, size);
+}
--
2.25.1
