diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h | 3 |
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index 9036c93b4a0c..fc83445fbc40 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -652,12 +652,14 @@ void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr) mutex_destroy(&mgr->lock); } -void amdgpu_ctx_fence_time(struct amdgpu_ctx *ctx, struct amdgpu_ctx_entity *centity, - ktime_t *total, ktime_t *max) +static void amdgpu_ctx_fence_time(struct amdgpu_ctx *ctx, + struct amdgpu_ctx_entity *centity, ktime_t *total, ktime_t *max) { ktime_t now, t1; uint32_t i; + *total = *max = 0; + now = ktime_get(); for (i = 0; i < amdgpu_sched_jobs; i++) { struct dma_fence *fence; @@ -703,11 +705,22 @@ ktime_t amdgpu_ctx_mgr_fence_usage(struct amdgpu_ctx_mgr *mgr, uint32_t hwip, idp = &mgr->ctx_handles; mutex_lock(&mgr->lock); idr_for_each_entry(idp, ctx, id) { + ktime_t ttotal, tmax; + if (!ctx->entities[hwip][idx]) continue; centity = ctx->entities[hwip][idx]; - amdgpu_ctx_fence_time(ctx, centity, &total, &max); + amdgpu_ctx_fence_time(ctx, centity, &ttotal, &tmax); + + /* Harmonic mean approximation diverges for very small + * values. If ratio < 0.01% ignore + */ + if (AMDGPU_CTX_FENCE_USAGE_MIN_RATIO(tmax, ttotal)) + continue; + + total = ktime_add(total, ttotal); + max = ktime_after(tmax, max) ? tmax : max; } mutex_unlock(&mgr->lock); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h index 10dcf59a5c6b..14db16bc3322 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h @@ -30,6 +30,7 @@ struct drm_file; struct amdgpu_fpriv; #define AMDGPU_MAX_ENTITY_NUM 4 +#define AMDGPU_CTX_FENCE_USAGE_MIN_RATIO(max, total) ((max) > 16384ULL*(total)) struct amdgpu_ctx_entity { uint64_t sequence; @@ -89,6 +90,4 @@ long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout); void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr); ktime_t amdgpu_ctx_mgr_fence_usage(struct amdgpu_ctx_mgr *mgr, uint32_t hwip, uint32_t idx, uint64_t *elapsed); -void amdgpu_ctx_fence_time(struct amdgpu_ctx *ctx, struct amdgpu_ctx_entity *centity, - ktime_t *total, ktime_t *max); #endif |