From patchwork Tue Sep 5 21:06:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ma=C3=ADra_Canal?= X-Patchwork-Id: 13375081 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B2F4FCA1008 for ; Tue, 5 Sep 2023 21:34:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6E1D310E553; Tue, 5 Sep 2023 21:34:47 +0000 (UTC) Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6625310E553 for ; Tue, 5 Sep 2023 21:34:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=grRL10pMQ0cGBXQe5FMwOWz/Bd8RUP8GagsoWJS0TcA=; b=qzbpzEFioSG2ZTsfLwy0d+sZ9J VOv+OhaOh/2816Ohqcu6ll85dGCOHYjG9SIool2xC4G+tQppeireBn0wU8pLkvTm1gPmWCyb6nk1u itABnJQVN5o+lXVH0hrcgZdp67lnwvQSpT9J1gArssxwuflOYzeBebdYpcnE15hAHixVFtO0kGC6x O0QZYBRvwdA4w0Agan0aGcl37U5I3B2NYmlW5TueVAmwSLIWTlXphdgwG0NBZiRsrRLJFSwX+6b0W shfUGp6eaJT6qnTjk7Cwnwp/D1ru4cEsrBLIzUe16DtenBA6xR36PvKIWG51oy2G2Mz1DMyKbnzph pcKew61Q==; Received: from [187.36.235.191] (helo=morissey..) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1qddh3-002mEQ-9V; Tue, 05 Sep 2023 23:34:41 +0200 From: =?utf-8?q?Ma=C3=ADra_Canal?= To: Emma Anholt , Melissa Wen , Chema Casanova , David Airlie , Daniel Vetter , Tvrtko Ursulin , Rob Clark Subject: [PATCH v3 2/2] drm/v3d: Expose the total GPU usage stats on sysfs Date: Tue, 5 Sep 2023 18:06:35 -0300 Message-ID: <20230905213416.1290219-3-mcanal@igalia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230905213416.1290219-1-mcanal@igalia.com> References: <20230905213416.1290219-1-mcanal@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Ma=C3=ADra_Canal?= , kernel-dev@igalia.com, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The previous patch exposed the accumulated amount of active time per client for each V3D queue. But this doesn't provide a global notion of the GPU usage. Therefore, provide the accumulated amount of active time for each V3D queue (BIN, RENDER, CSD, TFU and CACHE_CLEAN), considering all the jobs submitted to the queue, independent of the client. This data is exposed through the sysfs interface, so that if the interface is queried at two different points of time the usage percentage of each of the queues can be calculated. Co-developed-by: Jose Maria Casanova Crespo Signed-off-by: Jose Maria Casanova Crespo Signed-off-by: Maíra Canal --- drivers/gpu/drm/v3d/Makefile | 3 +- drivers/gpu/drm/v3d/v3d_drv.c | 9 +++++ drivers/gpu/drm/v3d/v3d_drv.h | 8 ++++ drivers/gpu/drm/v3d/v3d_gem.c | 6 ++- drivers/gpu/drm/v3d/v3d_irq.c | 28 +++++++++++++ drivers/gpu/drm/v3d/v3d_sched.c | 15 ++++++- drivers/gpu/drm/v3d/v3d_sysfs.c | 69 +++++++++++++++++++++++++++++++++ 7 files changed, 135 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/v3d/v3d_sysfs.c -- 2.41.0 diff --git a/drivers/gpu/drm/v3d/Makefile b/drivers/gpu/drm/v3d/Makefile index e8b314137020..4b21b20e4998 100644 --- a/drivers/gpu/drm/v3d/Makefile +++ b/drivers/gpu/drm/v3d/Makefile @@ -11,7 +11,8 @@ v3d-y := \ v3d_mmu.o \ v3d_perfmon.o \ v3d_trace_points.o \ - v3d_sched.o + v3d_sched.o \ + v3d_sysfs.o v3d-$(CONFIG_DEBUG_FS) += v3d_debugfs.o diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c index 5003c9ef1914..c7d22952b3ae 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.c +++ b/drivers/gpu/drm/v3d/v3d_drv.c @@ -315,8 +315,14 @@ static int v3d_platform_drm_probe(struct platform_device *pdev) if (ret) goto irq_disable; + ret = v3d_sysfs_init(dev); + if (ret) + goto drm_unregister; + return 0; +drm_unregister: + drm_dev_unregister(drm); irq_disable: v3d_irq_disable(v3d); gem_destroy: @@ -330,6 +336,9 @@ static void v3d_platform_drm_remove(struct platform_device *pdev) { struct drm_device *drm = platform_get_drvdata(pdev); struct v3d_dev *v3d = to_v3d_dev(drm); + struct device *dev = &pdev->dev; + + v3d_sysfs_destroy(dev); drm_dev_unregister(drm); diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 7f2897e5b2cb..adebcdde4ebd 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -38,6 +38,10 @@ struct v3d_queue_state { u64 fence_context; u64 emit_seqno; + + u64 start_ns; + u64 enabled_ns; + u64 jobs_sent; }; /* Performance monitor object. The perform lifetime is controlled by userspace @@ -441,3 +445,7 @@ int v3d_perfmon_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_perfmon_get_values_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); + +/* v3d_sysfs.c */ +int v3d_sysfs_init(struct device *dev); +void v3d_sysfs_destroy(struct device *dev); diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 40ed0c7c3fad..da6376909e10 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -1014,8 +1014,12 @@ v3d_gem_init(struct drm_device *dev) u32 pt_size = 4096 * 1024; int ret, i; - for (i = 0; i < V3D_MAX_QUEUES; 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; + } spin_lock_init(&v3d->mm_lock); spin_lock_init(&v3d->job_lock); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index c724f65058f4..622111e613e3 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -102,10 +102,17 @@ v3d_irq(int irq, void *arg) 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; trace_v3d_bcl_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); @@ -116,10 +123,17 @@ v3d_irq(int irq, void *arg) 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; trace_v3d_rcl_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); @@ -130,10 +144,17 @@ v3d_irq(int irq, void *arg) 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; trace_v3d_csd_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); @@ -171,10 +192,17 @@ v3d_hub_irq(int irq, void *arg) 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; trace_v3d_tfu_irq(&v3d->drm, fence->seqno); dma_fence_signal(&fence->base); diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c index 6736d17b15d8..b2a46738960c 100644 --- a/drivers/gpu/drm/v3d/v3d_sched.c +++ b/drivers/gpu/drm/v3d/v3d_sched.c @@ -110,6 +110,7 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job) job->start, job->end); file->start_ns[V3D_BIN] = local_clock(); + v3d->queue[V3D_BIN].start_ns = file->start_ns[V3D_BIN]; v3d_switch_perfmon(v3d, &job->base); @@ -164,6 +165,7 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job) job->start, job->end); file->start_ns[V3D_RENDER] = local_clock(); + v3d->queue[V3D_RENDER].start_ns = file->start_ns[V3D_RENDER]; v3d_switch_perfmon(v3d, &job->base); @@ -199,6 +201,7 @@ 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_WRITE(V3D_TFU_IIA, job->args.iia); V3D_WRITE(V3D_TFU_IIS, job->args.iis); @@ -243,6 +246,7 @@ 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_switch_perfmon(v3d, &job->base); @@ -260,14 +264,23 @@ 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_clean_caches(v3d); - file->enabled_ns[V3D_CACHE_CLEAN] += local_clock() - file->start_ns[V3D_CACHE_CLEAN]; + 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; return NULL; } diff --git a/drivers/gpu/drm/v3d/v3d_sysfs.c b/drivers/gpu/drm/v3d/v3d_sysfs.c new file mode 100644 index 000000000000..d106845ba890 --- /dev/null +++ b/drivers/gpu/drm/v3d/v3d_sysfs.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2023 Igalia S.L. + */ + +#include +#include + +#include "v3d_drv.h" + +static ssize_t +gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct drm_device *drm = dev_get_drvdata(dev); + 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; + + /* Each line will display the queue name, timestamp, the number + * of jobs sent to that queue and the runtime, as can be seem here: + * + * queue timestamp jobs runtime + * bin 239043069420 22620 17438164056 + * render 239043069420 22619 27284814161 + * tfu 239043069420 8763 394592566 + * csd 239043069420 3168 10787905530 + * cache_clean 239043069420 6127 237375940 + */ + 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); + } + + return len; +} +static DEVICE_ATTR_RO(gpu_stats); + +static struct attribute *v3d_sysfs_entries[] = { + &dev_attr_gpu_stats.attr, + NULL, +}; + +static struct attribute_group v3d_sysfs_attr_group = { + .attrs = v3d_sysfs_entries, +}; + +int +v3d_sysfs_init(struct device *dev) +{ + return sysfs_create_group(&dev->kobj, &v3d_sysfs_attr_group); +} + +void +v3d_sysfs_destroy(struct device *dev) +{ + return sysfs_remove_group(&dev->kobj, &v3d_sysfs_attr_group); +}