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drm/amd/pm: Add STB accessors interface 

Add interface to collect STB logs.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andrey Grodzovsky 2021-09-23 18:17:53 -04:00 committed by Alex Deucher
parent ae360bf182
commit 79aae67ef8
2 changed files with 33 additions and 0 deletions
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15
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
View File

@ -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

18
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -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);
}