diff options
Diffstat (limited to 'drivers/gpu/drm/v3d')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_drv.c | 33 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_drv.h | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_gem.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_irq.c | 52 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_sched.c | 94 | ||||
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_sysfs.c | 13 |
6 files changed, 109 insertions, 122 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c index 3debf37e7d9b..28b7ddce7747 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.c +++ b/drivers/gpu/drm/v3d/v3d_drv.c @@ -115,14 +115,13 @@ v3d_open(struct drm_device *dev, struct drm_file *file) v3d_priv->v3d = v3d; for (i = 0; i < V3D_MAX_QUEUES; i++) { - v3d_priv->enabled_ns[i] = 0; - v3d_priv->start_ns[i] = 0; - v3d_priv->jobs_sent[i] = 0; - sched = &v3d->queue[i].sched; drm_sched_entity_init(&v3d_priv->sched_entity[i], DRM_SCHED_PRIORITY_NORMAL, &sched, 1, NULL); + + memset(&v3d_priv->stats[i], 0, sizeof(v3d_priv->stats[i])); + seqcount_init(&v3d_priv->stats[i].lock); } v3d_perfmon_open_file(v3d_priv); @@ -144,6 +143,20 @@ v3d_postclose(struct drm_device *dev, struct drm_file *file) kfree(v3d_priv); } +void v3d_get_stats(const struct v3d_stats *stats, u64 timestamp, + u64 *active_runtime, u64 *jobs_completed) +{ + unsigned int seq; + + do { + seq = read_seqcount_begin(&stats->lock); + *active_runtime = stats->enabled_ns; + if (stats->start_ns) + *active_runtime += timestamp - stats->start_ns; + *jobs_completed = stats->jobs_completed; + } while (read_seqcount_retry(&stats->lock, seq)); +} + static void v3d_show_fdinfo(struct drm_printer *p, struct drm_file *file) { struct v3d_file_priv *file_priv = file->driver_priv; @@ -151,20 +164,22 @@ static void v3d_show_fdinfo(struct drm_printer *p, struct drm_file *file) enum v3d_queue queue; for (queue = 0; queue < V3D_MAX_QUEUES; queue++) { + struct v3d_stats *stats = &file_priv->stats[queue]; + u64 active_runtime, jobs_completed; + + v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed); + /* Note that, in case of a GPU reset, the time spent during an * attempt of executing the job is not computed in the runtime. */ drm_printf(p, "drm-engine-%s: \t%llu ns\n", - v3d_queue_to_string(queue), - file_priv->start_ns[queue] ? file_priv->enabled_ns[queue] - + timestamp - file_priv->start_ns[queue] - : file_priv->enabled_ns[queue]); + v3d_queue_to_string(queue), active_runtime); /* Note that we only count jobs that completed. Therefore, jobs * that were resubmitted due to a GPU reset are not computed. */ drm_printf(p, "v3d-jobs-%s: \t%llu jobs\n", - v3d_queue_to_string(queue), file_priv->jobs_sent[queue]); + v3d_queue_to_string(queue), jobs_completed); } } diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 1950c723dde1..a2c516fe6d79 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -36,15 +36,27 @@ static inline char *v3d_queue_to_string(enum v3d_queue queue) return "UNKNOWN"; } +struct v3d_stats { + u64 start_ns; + u64 enabled_ns; + u64 jobs_completed; + + /* + * This seqcount is used to protect the access to the GPU stats + * variables. It must be used as, while we are reading the stats, + * IRQs can happen and the stats can be updated. + */ + seqcount_t lock; +}; + struct v3d_queue_state { struct drm_gpu_scheduler sched; u64 fence_context; u64 emit_seqno; - u64 start_ns; - u64 enabled_ns; - u64 jobs_sent; + /* Stores the GPU stats for this queue in the global context. */ + struct v3d_stats stats; }; /* Performance monitor object. The perform lifetime is controlled by userspace @@ -188,11 +200,8 @@ struct v3d_file_priv { struct drm_sched_entity sched_entity[V3D_MAX_QUEUES]; - u64 start_ns[V3D_MAX_QUEUES]; - - u64 enabled_ns[V3D_MAX_QUEUES]; - - u64 jobs_sent[V3D_MAX_QUEUES]; + /* Stores the GPU stats for a specific queue for this fd. */ + struct v3d_stats stats[V3D_MAX_QUEUES]; }; struct v3d_bo { @@ -508,6 +517,10 @@ struct drm_gem_object *v3d_prime_import_sg_table(struct drm_device *dev, /* v3d_debugfs.c */ void v3d_debugfs_init(struct drm_minor *minor); +/* v3d_drv.c */ +void v3d_get_stats(const struct v3d_stats *stats, u64 timestamp, + u64 *active_runtime, u64 *jobs_completed); + /* v3d_fence.c */ extern const struct dma_fence_ops v3d_fence_ops; struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue); @@ -543,6 +556,7 @@ void v3d_mmu_insert_ptes(struct v3d_bo *bo); void v3d_mmu_remove_ptes(struct v3d_bo *bo); /* v3d_sched.c */ +void v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue); int v3d_sched_init(struct v3d_dev *v3d); void v3d_sched_fini(struct v3d_dev *v3d); diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index afc565078c78..da8faf3b9011 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -247,10 +247,11 @@ v3d_gem_init(struct drm_device *dev) int ret, i; for (i = 0; i < V3D_MAX_QUEUES; i++) { - v3d->queue[i].fence_context = dma_fence_context_alloc(1); - v3d->queue[i].start_ns = 0; - v3d->queue[i].enabled_ns = 0; - v3d->queue[i].jobs_sent = 0; + struct v3d_queue_state *queue = &v3d->queue[i]; + + queue->fence_context = dma_fence_context_alloc(1); + memset(&queue->stats, 0, sizeof(queue->stats)); + seqcount_init(&queue->stats.lock); } spin_lock_init(&v3d->mm_lock); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index 2e04f6cb661e..d469bda52c1a 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -102,19 +102,8 @@ v3d_irq(int irq, void *arg) if (intsts & V3D_INT_FLDONE) { struct v3d_fence *fence = to_v3d_fence(v3d->bin_job->base.irq_fence); - struct v3d_file_priv *file = v3d->bin_job->base.file->driver_priv; - u64 runtime = local_clock() - file->start_ns[V3D_BIN]; - - file->enabled_ns[V3D_BIN] += local_clock() - file->start_ns[V3D_BIN]; - file->jobs_sent[V3D_BIN]++; - v3d->queue[V3D_BIN].jobs_sent++; - - file->start_ns[V3D_BIN] = 0; - v3d->queue[V3D_BIN].start_ns = 0; - - file->enabled_ns[V3D_BIN] += runtime; - v3d->queue[V3D_BIN].enabled_ns += runtime; + v3d_job_update_stats(&v3d->bin_job->base, V3D_BIN); trace_v3d_bcl_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); status = IRQ_HANDLED; @@ -123,19 +112,8 @@ v3d_irq(int irq, void *arg) if (intsts & V3D_INT_FRDONE) { struct v3d_fence *fence = to_v3d_fence(v3d->render_job->base.irq_fence); - struct v3d_file_priv *file = v3d->render_job->base.file->driver_priv; - u64 runtime = local_clock() - file->start_ns[V3D_RENDER]; - - file->enabled_ns[V3D_RENDER] += local_clock() - file->start_ns[V3D_RENDER]; - file->jobs_sent[V3D_RENDER]++; - v3d->queue[V3D_RENDER].jobs_sent++; - - file->start_ns[V3D_RENDER] = 0; - v3d->queue[V3D_RENDER].start_ns = 0; - - file->enabled_ns[V3D_RENDER] += runtime; - v3d->queue[V3D_RENDER].enabled_ns += runtime; + v3d_job_update_stats(&v3d->render_job->base, V3D_RENDER); trace_v3d_rcl_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); status = IRQ_HANDLED; @@ -144,19 +122,8 @@ v3d_irq(int irq, void *arg) if (intsts & V3D_INT_CSDDONE(v3d->ver)) { struct v3d_fence *fence = to_v3d_fence(v3d->csd_job->base.irq_fence); - struct v3d_file_priv *file = v3d->csd_job->base.file->driver_priv; - u64 runtime = local_clock() - file->start_ns[V3D_CSD]; - - file->enabled_ns[V3D_CSD] += local_clock() - file->start_ns[V3D_CSD]; - file->jobs_sent[V3D_CSD]++; - v3d->queue[V3D_CSD].jobs_sent++; - - file->start_ns[V3D_CSD] = 0; - v3d->queue[V3D_CSD].start_ns = 0; - - file->enabled_ns[V3D_CSD] += runtime; - v3d->queue[V3D_CSD].enabled_ns += runtime; + v3d_job_update_stats(&v3d->csd_job->base, V3D_CSD); trace_v3d_csd_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); status = IRQ_HANDLED; @@ -192,19 +159,8 @@ v3d_hub_irq(int irq, void *arg) if (intsts & V3D_HUB_INT_TFUC) { struct v3d_fence *fence = to_v3d_fence(v3d->tfu_job->base.irq_fence); - struct v3d_file_priv *file = v3d->tfu_job->base.file->driver_priv; - u64 runtime = local_clock() - file->start_ns[V3D_TFU]; - - file->enabled_ns[V3D_TFU] += local_clock() - file->start_ns[V3D_TFU]; - file->jobs_sent[V3D_TFU]++; - v3d->queue[V3D_TFU].jobs_sent++; - - file->start_ns[V3D_TFU] = 0; - v3d->queue[V3D_TFU].start_ns = 0; - - file->enabled_ns[V3D_TFU] += runtime; - v3d->queue[V3D_TFU].enabled_ns += runtime; + v3d_job_update_stats(&v3d->tfu_job->base, V3D_TFU); trace_v3d_tfu_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); status = IRQ_HANDLED; diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c index 54015ad765c7..7cd8c335cd9b 100644 --- a/drivers/gpu/drm/v3d/v3d_sched.c +++ b/drivers/gpu/drm/v3d/v3d_sched.c @@ -105,11 +105,51 @@ v3d_switch_perfmon(struct v3d_dev *v3d, struct v3d_job *job) v3d_perfmon_start(v3d, job->perfmon); } +static void +v3d_job_start_stats(struct v3d_job *job, enum v3d_queue queue) +{ + struct v3d_dev *v3d = job->v3d; + struct v3d_file_priv *file = job->file->driver_priv; + struct v3d_stats *global_stats = &v3d->queue[queue].stats; + struct v3d_stats *local_stats = &file->stats[queue]; + u64 now = local_clock(); + + write_seqcount_begin(&local_stats->lock); + local_stats->start_ns = now; + write_seqcount_end(&local_stats->lock); + + write_seqcount_begin(&global_stats->lock); + global_stats->start_ns = now; + write_seqcount_end(&global_stats->lock); +} + +static void +v3d_stats_update(struct v3d_stats *stats, u64 now) +{ + write_seqcount_begin(&stats->lock); + stats->enabled_ns += now - stats->start_ns; + stats->jobs_completed++; + stats->start_ns = 0; + write_seqcount_end(&stats->lock); +} + +void +v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue) +{ + struct v3d_dev *v3d = job->v3d; + struct v3d_file_priv *file = job->file->driver_priv; + struct v3d_stats *global_stats = &v3d->queue[queue].stats; + struct v3d_stats *local_stats = &file->stats[queue]; + u64 now = local_clock(); + + v3d_stats_update(local_stats, now); + v3d_stats_update(global_stats, now); +} + static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job) { struct v3d_bin_job *job = to_bin_job(sched_job); struct v3d_dev *v3d = job->base.v3d; - struct v3d_file_priv *file = job->base.file->driver_priv; struct drm_device *dev = &v3d->drm; struct dma_fence *fence; unsigned long irqflags; @@ -141,9 +181,7 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_cl(dev, false, to_v3d_fence(fence)->seqno, job->start, job->end); - file->start_ns[V3D_BIN] = local_clock(); - v3d->queue[V3D_BIN].start_ns = file->start_ns[V3D_BIN]; - + v3d_job_start_stats(&job->base, V3D_BIN); v3d_switch_perfmon(v3d, &job->base); /* Set the current and end address of the control list. @@ -168,7 +206,6 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job) { struct v3d_render_job *job = to_render_job(sched_job); struct v3d_dev *v3d = job->base.v3d; - struct v3d_file_priv *file = job->base.file->driver_priv; struct drm_device *dev = &v3d->drm; struct dma_fence *fence; @@ -196,9 +233,7 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_cl(dev, true, to_v3d_fence(fence)->seqno, job->start, job->end); - file->start_ns[V3D_RENDER] = local_clock(); - v3d->queue[V3D_RENDER].start_ns = file->start_ns[V3D_RENDER]; - + v3d_job_start_stats(&job->base, V3D_RENDER); v3d_switch_perfmon(v3d, &job->base); /* XXX: Set the QCFG */ @@ -217,7 +252,6 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job) { struct v3d_tfu_job *job = to_tfu_job(sched_job); struct v3d_dev *v3d = job->base.v3d; - struct v3d_file_priv *file = job->base.file->driver_priv; struct drm_device *dev = &v3d->drm; struct dma_fence *fence; @@ -232,8 +266,7 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_tfu(dev, to_v3d_fence(fence)->seqno); - file->start_ns[V3D_TFU] = local_clock(); - v3d->queue[V3D_TFU].start_ns = file->start_ns[V3D_TFU]; + v3d_job_start_stats(&job->base, V3D_TFU); V3D_WRITE(V3D_TFU_IIA(v3d->ver), job->args.iia); V3D_WRITE(V3D_TFU_IIS(v3d->ver), job->args.iis); @@ -260,7 +293,6 @@ v3d_csd_job_run(struct drm_sched_job *sched_job) { struct v3d_csd_job *job = to_csd_job(sched_job); struct v3d_dev *v3d = job->base.v3d; - struct v3d_file_priv *file = job->base.file->driver_priv; struct drm_device *dev = &v3d->drm; struct dma_fence *fence; int i, csd_cfg0_reg, csd_cfg_reg_count; @@ -279,9 +311,7 @@ v3d_csd_job_run(struct drm_sched_job *sched_job) trace_v3d_submit_csd(dev, to_v3d_fence(fence)->seqno); - file->start_ns[V3D_CSD] = local_clock(); - v3d->queue[V3D_CSD].start_ns = file->start_ns[V3D_CSD]; - + v3d_job_start_stats(&job->base, V3D_CSD); v3d_switch_perfmon(v3d, &job->base); csd_cfg0_reg = V3D_CSD_QUEUED_CFG0(v3d->ver); @@ -530,8 +560,6 @@ v3d_cpu_job_run(struct drm_sched_job *sched_job) { struct v3d_cpu_job *job = to_cpu_job(sched_job); struct v3d_dev *v3d = job->base.v3d; - struct v3d_file_priv *file = job->base.file->driver_priv; - u64 runtime; v3d->cpu_job = job; @@ -540,25 +568,13 @@ v3d_cpu_job_run(struct drm_sched_job *sched_job) return NULL; } - file->start_ns[V3D_CPU] = local_clock(); - v3d->queue[V3D_CPU].start_ns = file->start_ns[V3D_CPU]; - + v3d_job_start_stats(&job->base, V3D_CPU); trace_v3d_cpu_job_begin(&v3d->drm, job->job_type); cpu_job_function[job->job_type](job); trace_v3d_cpu_job_end(&v3d->drm, job->job_type); - - runtime = local_clock() - file->start_ns[V3D_CPU]; - - file->enabled_ns[V3D_CPU] += runtime; - v3d->queue[V3D_CPU].enabled_ns += runtime; - - file->jobs_sent[V3D_CPU]++; - v3d->queue[V3D_CPU].jobs_sent++; - - file->start_ns[V3D_CPU] = 0; - v3d->queue[V3D_CPU].start_ns = 0; + v3d_job_update_stats(&job->base, V3D_CPU); return NULL; } @@ -568,24 +584,12 @@ v3d_cache_clean_job_run(struct drm_sched_job *sched_job) { struct v3d_job *job = to_v3d_job(sched_job); struct v3d_dev *v3d = job->v3d; - struct v3d_file_priv *file = job->file->driver_priv; - u64 runtime; - file->start_ns[V3D_CACHE_CLEAN] = local_clock(); - v3d->queue[V3D_CACHE_CLEAN].start_ns = file->start_ns[V3D_CACHE_CLEAN]; + v3d_job_start_stats(job, V3D_CACHE_CLEAN); v3d_clean_caches(v3d); - runtime = local_clock() - file->start_ns[V3D_CACHE_CLEAN]; - - file->enabled_ns[V3D_CACHE_CLEAN] += runtime; - v3d->queue[V3D_CACHE_CLEAN].enabled_ns += runtime; - - file->jobs_sent[V3D_CACHE_CLEAN]++; - v3d->queue[V3D_CACHE_CLEAN].jobs_sent++; - - file->start_ns[V3D_CACHE_CLEAN] = 0; - v3d->queue[V3D_CACHE_CLEAN].start_ns = 0; + v3d_job_update_stats(job, V3D_CACHE_CLEAN); return NULL; } diff --git a/drivers/gpu/drm/v3d/v3d_sysfs.c b/drivers/gpu/drm/v3d/v3d_sysfs.c index d106845ba890..d610e355964f 100644 --- a/drivers/gpu/drm/v3d/v3d_sysfs.c +++ b/drivers/gpu/drm/v3d/v3d_sysfs.c @@ -15,16 +15,15 @@ gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf) struct v3d_dev *v3d = to_v3d_dev(drm); enum v3d_queue queue; u64 timestamp = local_clock(); - u64 active_runtime; ssize_t len = 0; len += sysfs_emit(buf, "queue\ttimestamp\tjobs\truntime\n"); for (queue = 0; queue < V3D_MAX_QUEUES; queue++) { - if (v3d->queue[queue].start_ns) - active_runtime = timestamp - v3d->queue[queue].start_ns; - else - active_runtime = 0; + struct v3d_stats *stats = &v3d->queue[queue].stats; + u64 active_runtime, jobs_completed; + + v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed); /* Each line will display the queue name, timestamp, the number * of jobs sent to that queue and the runtime, as can be seem here: @@ -38,9 +37,7 @@ gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf) */ len += sysfs_emit_at(buf, len, "%s\t%llu\t%llu\t%llu\n", v3d_queue_to_string(queue), - timestamp, - v3d->queue[queue].jobs_sent, - v3d->queue[queue].enabled_ns + active_runtime); + timestamp, jobs_completed, active_runtime); } return len; |