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drm/amdgpu: fix xgmi perfmon a-b-a problem

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Mapping hw counters per event config will cause ABA problems so map per
event instead.

v2: Discontinue starting perf counters if add fails.  Make it clear what's
happening with pmc_start.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jonathan Kim
2020-06-18 10:40:14 -04:00
committed by Alex Deucher
parent 4b74ed75ae
commit 576e0ec26b
3 changed files with 78 additions and 75 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_df.h
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@@ -44,11 +44,11 @@ struct amdgpu_df_funcs {
void (*enable_ecc_force_par_wr_rmw)(struct amdgpu_device *adev,
bool enable);
int (*pmc_start)(struct amdgpu_device *adev, uint64_t config,
int is_add);
int counter_idx, int is_add);
int (*pmc_stop)(struct amdgpu_device *adev, uint64_t config,
int is_remove);
int counter_idx, int is_remove);
void (*pmc_get_count)(struct amdgpu_device *adev, uint64_t config,
uint64_t *count);
int counter_idx, uint64_t *count);
uint64_t (*get_fica)(struct amdgpu_device *adev, uint32_t ficaa_val);
void (*set_fica)(struct amdgpu_device *adev, uint32_t ficaa_val,
uint32_t ficadl_val, uint32_t ficadh_val);