diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpu.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index 07ee6573a301..02419f2ca2bc 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -160,6 +160,13 @@ struct msm_gpu { int nr_rings; /** + * sysprof_active: + * + * The count of contexts that have enabled system profiling. + */ + refcount_t sysprof_active; + + /** * cur_ctx_seqno: * * The ctx->seqno value of the last context to submit rendering, @@ -330,6 +337,24 @@ struct msm_file_private { int seqno; /** + * sysprof: + * + * The value of MSM_PARAM_SYSPROF set by userspace. This is + * intended to be used by system profiling tools like Mesa's + * pps-producer (perfetto), and restricted to CAP_SYS_ADMIN. + * + * Setting a value of 1 will preserve performance counters across + * context switches. Setting a value of 2 will in addition + * suppress suspend. (Performance counters lose state across + * power collapse, which is undesirable for profiling in some + * cases.) + * + * The value automatically reverts to zero when the drm device + * file is closed. + */ + int sysprof; + + /** * entities: * * Table of per-priority-level sched entities used by submitqueues @@ -525,6 +550,8 @@ void msm_submitqueue_close(struct msm_file_private *ctx); void msm_submitqueue_destroy(struct kref *kref); +int msm_file_private_set_sysprof(struct msm_file_private *ctx, + struct msm_gpu *gpu, int sysprof); void __msm_file_private_destroy(struct kref *kref); static inline void msm_file_private_put(struct msm_file_private *ctx) |