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[78.45.66.209]) by smtp.gmail.com with ESMTPSA id vv11-20020a170907a68b00b009226f644a07sm2009958ejc.139.2023.03.12.16.31.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Mar 2023 16:31:41 -0700 (PDT) From: Erico Nunes To: Qiang Yu , dri-devel@lists.freedesktop.org Cc: David Airlie , Daniel Vetter , lima@lists.freedesktop.org, linux-kernel@vger.kernel.org, Erico Nunes Subject: [PATCH 1/3] drm/lima: add usage counting method to ctx_mgr Date: Mon, 13 Mar 2023 00:30:50 +0100 Message-Id: <20230312233052.21095-2-nunes.erico@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230312233052.21095-1-nunes.erico@gmail.com> References: <20230312233052.21095-1-nunes.erico@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" lima maintains a context manager per drm_file, similar to amdgpu. In order to account for the complete usage per drm_file, all of the associated contexts need to be considered. Previously released contexts also need to be accounted for but their drm_sched_entity info is gone once they get released, so account for it in the ctx_mgr. Signed-off-by: Erico Nunes Reviewed-by: Qiang Yu --- drivers/gpu/drm/lima/lima_ctx.c | 30 +++++++++++++++++++++++++++++- drivers/gpu/drm/lima/lima_ctx.h | 3 +++ 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/lima/lima_ctx.c b/drivers/gpu/drm/lima/lima_ct= x.c index 891d5cd5019a..e008e586fad0 100644 --- a/drivers/gpu/drm/lima/lima_ctx.c +++ b/drivers/gpu/drm/lima/lima_ctx.c @@ -15,6 +15,7 @@ int lima_ctx_create(struct lima_device *dev, struct lima_= ctx_mgr *mgr, u32 *id) if (!ctx) return -ENOMEM; ctx->dev =3D dev; + ctx->mgr =3D mgr; kref_init(&ctx->refcnt); =20 for (i =3D 0; i < lima_pipe_num; i++) { @@ -42,10 +43,17 @@ int lima_ctx_create(struct lima_device *dev, struct lim= a_ctx_mgr *mgr, u32 *id) static void lima_ctx_do_release(struct kref *ref) { struct lima_ctx *ctx =3D container_of(ref, struct lima_ctx, refcnt); + struct lima_ctx_mgr *mgr =3D ctx->mgr; int i; =20 - for (i =3D 0; i < lima_pipe_num; i++) + for (i =3D 0; i < lima_pipe_num; i++) { + struct lima_sched_context *context =3D &ctx->context[i]; + struct drm_sched_entity *entity =3D &context->base; + + mgr->elapsed_ns[i] +=3D entity->elapsed_ns; + lima_sched_context_fini(ctx->dev->pipe + i, ctx->context + i); + } kfree(ctx); } =20 @@ -99,3 +107,23 @@ void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr) xa_destroy(&mgr->handles); mutex_destroy(&mgr->lock); } + +void lima_ctx_mgr_usage(struct lima_ctx_mgr *mgr, u64 usage[lima_pipe_num]) +{ + struct lima_ctx *ctx; + unsigned long id; + + for (int i =3D 0; i < lima_pipe_num; i++) + usage[i] =3D mgr->elapsed_ns[i]; + + mutex_lock(&mgr->lock); + xa_for_each(&mgr->handles, id, ctx) { + for (int i =3D 0; i < lima_pipe_num; i++) { + struct lima_sched_context *context =3D &ctx->context[i]; + struct drm_sched_entity *entity =3D &context->base; + + usage[i] +=3D entity->elapsed_ns; + } + } + mutex_unlock(&mgr->lock); +} diff --git a/drivers/gpu/drm/lima/lima_ctx.h b/drivers/gpu/drm/lima/lima_ct= x.h index 74e2be09090f..6068863880eb 100644 --- a/drivers/gpu/drm/lima/lima_ctx.h +++ b/drivers/gpu/drm/lima/lima_ctx.h @@ -12,6 +12,7 @@ struct lima_ctx { struct kref refcnt; struct lima_device *dev; + struct lima_ctx_mgr *mgr; struct lima_sched_context context[lima_pipe_num]; atomic_t guilty; =20 @@ -23,6 +24,7 @@ struct lima_ctx { struct lima_ctx_mgr { struct mutex lock; struct xarray handles; + u64 elapsed_ns[lima_pipe_num]; }; =20 int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32= *id); @@ -31,5 +33,6 @@ struct lima_ctx *lima_ctx_get(struct lima_ctx_mgr *mgr, u= 32 id); void lima_ctx_put(struct lima_ctx *ctx); void lima_ctx_mgr_init(struct lima_ctx_mgr *mgr); void lima_ctx_mgr_fini(struct lima_ctx_mgr *mgr); +void lima_ctx_mgr_usage(struct lima_ctx_mgr *mgr, u64 usage[lima_pipe_num]= ); =20 #endif --=20 2.39.2 From nobody Wed Feb 11 17:17:11 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4DB7C6FD19 for ; Sun, 12 Mar 2023 23:31:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229884AbjCLXb4 (ORCPT ); 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[78.45.66.209]) by smtp.gmail.com with ESMTPSA id vv11-20020a170907a68b00b009226f644a07sm2009958ejc.139.2023.03.12.16.31.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Mar 2023 16:31:42 -0700 (PDT) From: Erico Nunes To: Qiang Yu , dri-devel@lists.freedesktop.org Cc: David Airlie , Daniel Vetter , lima@lists.freedesktop.org, linux-kernel@vger.kernel.org, Erico Nunes Subject: [PATCH 2/3] drm/lima: allocate unique id per drm_file Date: Mon, 13 Mar 2023 00:30:51 +0100 Message-Id: <20230312233052.21095-3-nunes.erico@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230312233052.21095-1-nunes.erico@gmail.com> References: <20230312233052.21095-1-nunes.erico@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" To track if fds are pointing to the same execution context and export the expected information to fdinfo, similar to what is done in other drivers. Signed-off-by: Erico Nunes Reviewed-by: Qiang Yu --- drivers/gpu/drm/lima/lima_device.h | 3 +++ drivers/gpu/drm/lima/lima_drv.c | 12 ++++++++++++ drivers/gpu/drm/lima/lima_drv.h | 1 + 3 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/lima/lima_device.h b/drivers/gpu/drm/lima/lima= _device.h index 41b9d7b4bcc7..71b2db60d161 100644 --- a/drivers/gpu/drm/lima/lima_device.h +++ b/drivers/gpu/drm/lima/lima_device.h @@ -106,6 +106,9 @@ struct lima_device { struct lima_dump_head dump; struct list_head error_task_list; struct mutex error_task_list_lock; + + struct xarray active_contexts; + u32 next_context_id; }; =20 static inline struct lima_device * diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_dr= v.c index 7b8d7178d09a..d23c0b77a252 100644 --- a/drivers/gpu/drm/lima/lima_drv.c +++ b/drivers/gpu/drm/lima/lima_drv.c @@ -218,6 +218,11 @@ static int lima_drm_driver_open(struct drm_device *dev= , struct drm_file *file) if (!priv) return -ENOMEM; =20 + err =3D xa_alloc_cyclic(&ldev->active_contexts, &priv->id, priv, + xa_limit_32b, &ldev->next_context_id, GFP_KERNEL); + if (err < 0) + goto err_out0; + priv->vm =3D lima_vm_create(ldev); if (!priv->vm) { err =3D -ENOMEM; @@ -237,6 +242,9 @@ static int lima_drm_driver_open(struct drm_device *dev,= struct drm_file *file) static void lima_drm_driver_postclose(struct drm_device *dev, struct drm_f= ile *file) { struct lima_drm_priv *priv =3D file->driver_priv; + struct lima_device *ldev =3D to_lima_dev(dev); + + xa_erase(&ldev->active_contexts, priv->id); =20 lima_ctx_mgr_fini(&priv->ctx_mgr); lima_vm_put(priv->vm); @@ -388,6 +396,8 @@ static int lima_pdev_probe(struct platform_device *pdev) ldev->dev =3D &pdev->dev; ldev->id =3D (enum lima_gpu_id)of_device_get_match_data(&pdev->dev); =20 + xa_init_flags(&ldev->active_contexts, XA_FLAGS_ALLOC); + platform_set_drvdata(pdev, ldev); =20 /* Allocate and initialize the DRM device. */ @@ -444,6 +454,8 @@ static int lima_pdev_remove(struct platform_device *pde= v) struct lima_device *ldev =3D platform_get_drvdata(pdev); struct drm_device *ddev =3D ldev->ddev; =20 + xa_destroy(&ldev->active_contexts); + sysfs_remove_bin_file(&ldev->dev->kobj, &lima_error_state_attr); =20 drm_dev_unregister(ddev); diff --git a/drivers/gpu/drm/lima/lima_drv.h b/drivers/gpu/drm/lima/lima_dr= v.h index c738d288547b..e49b7ab651d0 100644 --- a/drivers/gpu/drm/lima/lima_drv.h +++ b/drivers/gpu/drm/lima/lima_drv.h @@ -20,6 +20,7 @@ struct lima_sched_task; struct drm_lima_gem_submit_bo; =20 struct lima_drm_priv { + int id; struct lima_vm *vm; struct lima_ctx_mgr ctx_mgr; }; --=20 2.39.2 From nobody Wed Feb 11 17:17:11 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C49AC6FD19 for ; Sun, 12 Mar 2023 23:32:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229807AbjCLXb6 (ORCPT ); Sun, 12 Mar 2023 19:31:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229827AbjCLXbt (ORCPT ); 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[78.45.66.209]) by smtp.gmail.com with ESMTPSA id vv11-20020a170907a68b00b009226f644a07sm2009958ejc.139.2023.03.12.16.31.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Mar 2023 16:31:43 -0700 (PDT) From: Erico Nunes To: Qiang Yu , dri-devel@lists.freedesktop.org Cc: David Airlie , Daniel Vetter , lima@lists.freedesktop.org, linux-kernel@vger.kernel.org, Erico Nunes Subject: [PATCH 3/3] drm/lima: add show_fdinfo for drm usage stats Date: Mon, 13 Mar 2023 00:30:52 +0100 Message-Id: <20230312233052.21095-4-nunes.erico@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230312233052.21095-1-nunes.erico@gmail.com> References: <20230312233052.21095-1-nunes.erico@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This exposes an accumulated active time per client via the fdinfo infrastructure per execution engine, following Documentation/gpu/drm-usage-stats.rst. In lima, the exposed execution engines are gp and pp. Signed-off-by: Erico Nunes Reviewed-by: Qiang Yu --- drivers/gpu/drm/lima/lima_drv.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_dr= v.c index d23c0b77a252..c044a31493a4 100644 --- a/drivers/gpu/drm/lima/lima_drv.c +++ b/drivers/gpu/drm/lima/lima_drv.c @@ -261,7 +261,36 @@ static const struct drm_ioctl_desc lima_drm_driver_ioc= tls[] =3D { DRM_IOCTL_DEF_DRV(LIMA_CTX_FREE, lima_ioctl_ctx_free, DRM_RENDER_ALLOW), }; =20 -DEFINE_DRM_GEM_FOPS(lima_drm_driver_fops); +static void lima_drm_driver_show_fdinfo(struct seq_file *m, struct file *f= ilp) +{ + struct drm_file *file =3D filp->private_data; + struct drm_device *dev =3D file->minor->dev; + struct lima_device *ldev =3D dev->dev_private; + struct lima_drm_priv *priv =3D file->driver_priv; + struct lima_ctx_mgr *ctx_mgr =3D &priv->ctx_mgr; + u64 usage[lima_pipe_num]; + + lima_ctx_mgr_usage(ctx_mgr, usage); + + /* + * For a description of the text output format used here, see + * Documentation/gpu/drm-usage-stats.rst. + */ + seq_printf(m, "drm-driver:\t%s\n", dev->driver->name); + seq_printf(m, "drm-client-id:\t%u\n", priv->id); + for (int i =3D 0; i < lima_pipe_num; i++) { + struct lima_sched_pipe *pipe =3D &ldev->pipe[i]; + struct drm_gpu_scheduler *sched =3D &pipe->base; + + seq_printf(m, "drm-engine-%s:\t%llu ns\n", sched->name, usage[i]); + } +} + +static const struct file_operations lima_drm_driver_fops =3D { + .owner =3D THIS_MODULE, + DRM_GEM_FOPS, + .show_fdinfo =3D lima_drm_driver_show_fdinfo, +}; =20 /* * Changelog: --=20 2.39.2