From patchwork Fri May 21 09:09:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 12272505 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8BDD7C433ED for ; Fri, 21 May 2021 09:10:21 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 4CA4C613AC for ; Fri, 21 May 2021 09:10:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4CA4C613AC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ffwll.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A20826F5EA; Fri, 21 May 2021 09:10:11 +0000 (UTC) Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6DE026F5E7 for ; Fri, 21 May 2021 09:10:08 +0000 (UTC) Received: by mail-wr1-x433.google.com with SMTP id x7so686163wrt.12 for ; Fri, 21 May 2021 02:10:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=uR9DJ2jr8CtcwsyrpRGKPhRjzhUtmedeglZUml8ukWI=; b=D358aI72G7Z8RB1g0ZjFMZ550KSzBgA01qygw0+7GbzVZyVPpi+fbyIfMjSzFocn1M ZHY3VuqQTFFGTnqiz2rrknwFjnc9bugVRhUc4PBRVYITNWRLCy+/yT9BWhDjLmoB1TLp 2hD2rj6mpcyXXjkmi/fOmlXrQqcqtAhn/OVVE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uR9DJ2jr8CtcwsyrpRGKPhRjzhUtmedeglZUml8ukWI=; b=bvXRC6YK3NIOICXLYlA8hCwOOfrGmVYWtOAXVEmU2B/RFL0xsT+Z/Ne5ZpWkBfp/m8 bi3GidwcjJ9jXg+qbU/BxP0gvZjL8LqeHHXhLIw+Uj++VCkMxGkAiSMIsyiXQOoFtvje CThwGQH9rnzU+WvxakKZhcpqFazgcsqo7pptP/2hFWzyUYbGx/ASP5ipIwatNMmuoyzF r6qy0lplYFdUwXs8sKgoLh7IHCIRXuGUhXGb/dfTUI81avS1PxGc3U3RkR42RBJYhX7T dUMtEd+b3GmE13UJW4hXhzEYGH9tqCtBhAxxGqtxyHEGx05SPOp1sCz8QKyJAir3QmFX tGJw== X-Gm-Message-State: AOAM532ZDBumTgXaiYKN+ebJZR1oFJsK/mFEWwb3EiBLXmB9tLwwgzFE HgerekvbMIYD7ZZJFfahJBV1Ww== X-Google-Smtp-Source: ABdhPJyV03WtTPWcuWSUSfzX27B39Gja1SJYx6ys8Uq9kTJPc/guCGF6Ua1Qi84vOdtB1jBqU6XmOw== X-Received: by 2002:a5d:6d8f:: with SMTP id l15mr8522028wrs.313.1621588207333; Fri, 21 May 2021 02:10:07 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id y2sm13589457wmq.45.2021.05.21.02.10.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 May 2021 02:10:06 -0700 (PDT) From: Daniel Vetter To: DRI Development Date: Fri, 21 May 2021 11:09:51 +0200 Message-Id: <20210521090959.1663703-3-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210521090959.1663703-1-daniel.vetter@ffwll.ch> References: <20210521090959.1663703-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 03/11] drm/panfrost: Use xarray and helpers for depedency tracking X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sumit Semwal , Rob Herring , Tomeu Vizoso , Daniel Vetter , Intel Graphics Development , Steven Price , linaro-mm-sig@lists.linaro.org, Luben Tuikov , Alyssa Rosenzweig , Alex Deucher , Daniel Vetter , Lee Jones , =?utf-8?q?Christian_K=C3=B6nig?= , linux-media@vger.kernel.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" More consistency and prep work for the next patch. Aside: I wonder whether we shouldn't just move this entire xarray business into the scheduler so that not everyone has to reinvent the same wheels. Cc'ing some scheduler people for this too. Cc: "Christian König" Cc: Luben Tuikov Cc: Alex Deucher Cc: Lee Jones Cc: Steven Price Cc: Rob Herring Cc: Tomeu Vizoso Cc: Alyssa Rosenzweig Cc: Sumit Semwal Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Daniel Vetter --- drivers/gpu/drm/panfrost/panfrost_drv.c | 41 ++++++++--------- drivers/gpu/drm/panfrost/panfrost_job.c | 61 ++++++++++--------------- drivers/gpu/drm/panfrost/panfrost_job.h | 8 ++-- 3 files changed, 46 insertions(+), 64 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index ca07098a6141..7977b4752b5c 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -137,12 +137,6 @@ panfrost_lookup_bos(struct drm_device *dev, if (!job->bo_count) return 0; - job->implicit_fences = kvmalloc_array(job->bo_count, - sizeof(struct dma_fence *), - GFP_KERNEL | __GFP_ZERO); - if (!job->implicit_fences) - return -ENOMEM; - ret = drm_gem_objects_lookup(file_priv, (void __user *)(uintptr_t)args->bo_handles, job->bo_count, &job->bos); @@ -173,7 +167,7 @@ panfrost_lookup_bos(struct drm_device *dev, } /** - * panfrost_copy_in_sync() - Sets up job->in_fences[] with the sync objects + * panfrost_copy_in_sync() - Sets up job->deps with the sync objects * referenced by the job. * @dev: DRM device * @file_priv: DRM file for this fd @@ -193,22 +187,14 @@ panfrost_copy_in_sync(struct drm_device *dev, { u32 *handles; int ret = 0; - int i; + int i, in_fence_count; - job->in_fence_count = args->in_sync_count; + in_fence_count = args->in_sync_count; - if (!job->in_fence_count) + if (!in_fence_count) return 0; - job->in_fences = kvmalloc_array(job->in_fence_count, - sizeof(struct dma_fence *), - GFP_KERNEL | __GFP_ZERO); - if (!job->in_fences) { - DRM_DEBUG("Failed to allocate job in fences\n"); - return -ENOMEM; - } - - handles = kvmalloc_array(job->in_fence_count, sizeof(u32), GFP_KERNEL); + handles = kvmalloc_array(in_fence_count, sizeof(u32), GFP_KERNEL); if (!handles) { ret = -ENOMEM; DRM_DEBUG("Failed to allocate incoming syncobj handles\n"); @@ -217,16 +203,23 @@ panfrost_copy_in_sync(struct drm_device *dev, if (copy_from_user(handles, (void __user *)(uintptr_t)args->in_syncs, - job->in_fence_count * sizeof(u32))) { + in_fence_count * sizeof(u32))) { ret = -EFAULT; DRM_DEBUG("Failed to copy in syncobj handles\n"); goto fail; } - for (i = 0; i < job->in_fence_count; i++) { + for (i = 0; i < in_fence_count; i++) { + struct dma_fence *fence; + ret = drm_syncobj_find_fence(file_priv, handles[i], 0, 0, - &job->in_fences[i]); - if (ret == -EINVAL) + &fence); + if (ret) + goto fail; + + ret = drm_gem_fence_array_add(&job->deps, fence); + + if (ret) goto fail; } @@ -264,6 +257,8 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data, kref_init(&job->refcount); + xa_init_flags(&job->deps, XA_FLAGS_ALLOC); + job->pfdev = pfdev; job->jc = args->jc; job->requirements = args->requirements; diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c index f5d39ee14ab5..707d912ff64a 100644 --- a/drivers/gpu/drm/panfrost/panfrost_job.c +++ b/drivers/gpu/drm/panfrost/panfrost_job.c @@ -196,14 +196,21 @@ static void panfrost_job_hw_submit(struct panfrost_job *job, int js) job_write(pfdev, JS_COMMAND_NEXT(js), JS_COMMAND_START); } -static void panfrost_acquire_object_fences(struct drm_gem_object **bos, - int bo_count, - struct dma_fence **implicit_fences) +static int panfrost_acquire_object_fences(struct drm_gem_object **bos, + int bo_count, + struct xarray *deps) { - int i; + int i, ret; - for (i = 0; i < bo_count; i++) - implicit_fences[i] = dma_resv_get_excl_rcu(bos[i]->resv); + for (i = 0; i < bo_count; i++) { + struct dma_fence *fence = dma_resv_get_excl_rcu(bos[i]->resv); + + ret = drm_gem_fence_array_add(deps, fence); + if (ret) + return ret; + } + + return 0; } static void panfrost_attach_object_fences(struct drm_gem_object **bos, @@ -236,8 +243,10 @@ int panfrost_job_push(struct panfrost_job *job) kref_get(&job->refcount); /* put by scheduler job completion */ - panfrost_acquire_object_fences(job->bos, job->bo_count, - job->implicit_fences); + ret = panfrost_acquire_object_fences(job->bos, job->bo_count, + &job->deps); + if (ret) + goto unlock; drm_sched_entity_push_job(&job->base, entity); @@ -254,18 +263,15 @@ static void panfrost_job_cleanup(struct kref *ref) { struct panfrost_job *job = container_of(ref, struct panfrost_job, refcount); + struct dma_fence *fence; + unsigned long index; unsigned int i; - if (job->in_fences) { - for (i = 0; i < job->in_fence_count; i++) - dma_fence_put(job->in_fences[i]); - kvfree(job->in_fences); - } - if (job->implicit_fences) { - for (i = 0; i < job->bo_count; i++) - dma_fence_put(job->implicit_fences[i]); - kvfree(job->implicit_fences); + xa_for_each(&job->deps, index, fence) { + dma_fence_put(fence); } + xa_destroy(&job->deps); + dma_fence_put(job->done_fence); dma_fence_put(job->render_done_fence); @@ -308,26 +314,9 @@ static struct dma_fence *panfrost_job_dependency(struct drm_sched_job *sched_job struct drm_sched_entity *s_entity) { struct panfrost_job *job = to_panfrost_job(sched_job); - struct dma_fence *fence; - unsigned int i; - /* Explicit fences */ - for (i = 0; i < job->in_fence_count; i++) { - if (job->in_fences[i]) { - fence = job->in_fences[i]; - job->in_fences[i] = NULL; - return fence; - } - } - - /* Implicit fences, max. one per BO */ - for (i = 0; i < job->bo_count; i++) { - if (job->implicit_fences[i]) { - fence = job->implicit_fences[i]; - job->implicit_fences[i] = NULL; - return fence; - } - } + if (!xa_empty(&job->deps)) + return xa_erase(&job->deps, job->last_dep++); return NULL; } diff --git a/drivers/gpu/drm/panfrost/panfrost_job.h b/drivers/gpu/drm/panfrost/panfrost_job.h index bbd3ba97ff67..82306a03b57e 100644 --- a/drivers/gpu/drm/panfrost/panfrost_job.h +++ b/drivers/gpu/drm/panfrost/panfrost_job.h @@ -19,9 +19,9 @@ struct panfrost_job { struct panfrost_device *pfdev; struct panfrost_file_priv *file_priv; - /* Optional fences userspace can pass in for the job to depend on. */ - struct dma_fence **in_fences; - u32 in_fence_count; + /* Contains both explicit and implicit fences */ + struct xarray deps; + unsigned long last_dep; /* Fence to be signaled by IRQ handler when the job is complete. */ struct dma_fence *done_fence; @@ -30,8 +30,6 @@ struct panfrost_job { __u32 requirements; __u32 flush_id; - /* Exclusive fences we have taken from the BOs to wait for */ - struct dma_fence **implicit_fences; struct panfrost_gem_mapping **mappings; struct drm_gem_object **bos; u32 bo_count;