From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 9D288C433E8 for ; Tue, 7 Jul 2020 20:13:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7A0F920720 for ; Tue, 7 Jul 2020 20:13:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="exbtvFm/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728711AbgGGUNE (ORCPT ); Tue, 7 Jul 2020 16:13:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728648AbgGGUNE (ORCPT ); Tue, 7 Jul 2020 16:13:04 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D59FC061755 for ; Tue, 7 Jul 2020 13:13:04 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id a6so46608776wrm.4 for ; Tue, 07 Jul 2020 13:13:04 -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=288QC5fKBToLFpFuoOPQqa37hzJ8GViPNZgBbpolevY=; b=exbtvFm/IDGUVNkPZ+J6eOk/nKAYYZYnwZjGPqn4diJ0GPNqgp8huhSLLZXvWl635s SW4E6QQuTZgdY7pe95x7AGPcPBSzYsyKzcyQVjeYtQ/3mSTlpcm9bstPy6xqhxQdc3lU nhih5p7E42c1af44f6sBfO4t1NWm5I/2bCo5A= 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=288QC5fKBToLFpFuoOPQqa37hzJ8GViPNZgBbpolevY=; b=l1UQ47Ajr7jHoI7/z84NV6ppVqkCci3pPn8/HxrpEYaTT5X5r0P8t0FA6EfR35J+Ce ICirv8dfmj4ka7c1d15TJmNpIP3YlUAOPs2jhaE0et3JLr4SwgI9tIXL60i5Fxet4V/S xLsEby0SZXu4GyU2PNWUFAqUZf2H3U30kAIgo3vC65YCoCYRKutR3CyWeI+4n0sW/Drt 8TGwpXaeBGnb+PZbCDUAx3z8DNOts/qLafRRA6baJuYm4QnP0LHRJINicVxQYWYG7j00 4AyRaGLWmQZAe7JbIfGvpasUb4wmqgJs8b9npt3gryRL6ZYP0Dsj2QAUprSQjhitGO8F qbIg== X-Gm-Message-State: AOAM532fV8neq85YzRA8QBQlm50za3ZUw/t8lL8ETi7TjnKJUPfKYlDX ij3c93f7kjqJ8B+m7NUNLs+mtZVg4+Y= X-Google-Smtp-Source: ABdhPJzJC+HAl1m5YFWCn6DTeDFu8lcCd90/+4+vD1TO4Q9nKElNEoSd/j3rcAA3OQS0WKjwS/G1Mg== X-Received: by 2002:a5d:40cb:: with SMTP id b11mr56760051wrq.263.1594152782893; Tue, 07 Jul 2020 13:13:02 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id q7sm2515262wra.56.2020.07.07.13.13.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 13:13:02 -0700 (PDT) From: Daniel Vetter To: DRI Development Cc: Intel Graphics Development , linux-rdma@vger.kernel.org, Daniel Vetter , linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, amd-gfx@lists.freedesktop.org, Chris Wilson , Maarten Lankhorst , =?UTF-8?q?Christian=20K=C3=B6nig?= , Daniel Vetter Subject: [PATCH 18/25] drm/amdgpu: use dma-fence annotations in cs_submit() Date: Tue, 7 Jul 2020 22:12:22 +0200 Message-Id: <20200707201229.472834-19-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200707201229.472834-1-daniel.vetter@ffwll.ch> References: <20200707201229.472834-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This is a bit tricky, since ->notifier_lock is held while calling dma_fence_wait we must ensure that also the read side (i.e. dma_fence_begin_signalling) is on the same side. If we mix this up lockdep complaints, and that's again why we want to have these annotations. A nice side effect of this is that because of the fs_reclaim priming for dma_fence_enable lockdep now automatically checks for us that nothing in here allocates memory, without even running any userptr workloads. Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Cc: linux-rdma@vger.kernel.org Cc: amd-gfx@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Cc: Chris Wilson Cc: Maarten Lankhorst Cc: Christian König Signed-off-by: Daniel Vetter --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index a512ccbc4dea..858528a06fe7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1212,6 +1212,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, struct amdgpu_job *job; uint64_t seq; int r; + bool fence_cookie; job = p->job; p->job = NULL; @@ -1226,6 +1227,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, */ mutex_lock(&p->adev->notifier_lock); + fence_cookie = dma_fence_begin_signalling(); + /* If userptr are invalidated after amdgpu_cs_parser_bos(), return * -EAGAIN, drmIoctl in libdrm will restart the amdgpu_cs_ioctl. */ @@ -1262,12 +1265,14 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, amdgpu_vm_move_to_lru_tail(p->adev, &fpriv->vm); ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence); + dma_fence_end_signalling(fence_cookie); mutex_unlock(&p->adev->notifier_lock); return 0; error_abort: drm_sched_job_cleanup(&job->base); + dma_fence_end_signalling(fence_cookie); mutex_unlock(&p->adev->notifier_lock); error_unlock: -- 2.27.0 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 4CC12C433E8 for ; Tue, 7 Jul 2020 20:14:08 +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 2267D208D5 for ; 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Tue, 07 Jul 2020 13:13:02 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id q7sm2515262wra.56.2020.07.07.13.13.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 13:13:02 -0700 (PDT) From: Daniel Vetter To: DRI Development Date: Tue, 7 Jul 2020 22:12:22 +0200 Message-Id: <20200707201229.472834-19-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200707201229.472834-1-daniel.vetter@ffwll.ch> References: <20200707201229.472834-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 18/25] drm/amdgpu: use dma-fence annotations in cs_submit() 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: linux-rdma@vger.kernel.org, Daniel Vetter , Intel Graphics Development , amd-gfx@lists.freedesktop.org, Chris Wilson , linaro-mm-sig@lists.linaro.org, Daniel Vetter , =?UTF-8?q?Christian=20K=C3=B6nig?= , linux-media@vger.kernel.org Content-Type: text/plain; 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Tue, 07 Jul 2020 13:13:02 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id q7sm2515262wra.56.2020.07.07.13.13.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 13:13:02 -0700 (PDT) From: Daniel Vetter To: DRI Development Subject: [PATCH 18/25] drm/amdgpu: use dma-fence annotations in cs_submit() Date: Tue, 7 Jul 2020 22:12:22 +0200 Message-Id: <20200707201229.472834-19-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200707201229.472834-1-daniel.vetter@ffwll.ch> References: <20200707201229.472834-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rdma@vger.kernel.org, Daniel Vetter , Intel Graphics Development , Maarten Lankhorst , amd-gfx@lists.freedesktop.org, Chris Wilson , linaro-mm-sig@lists.linaro.org, Daniel Vetter , =?UTF-8?q?Christian=20K=C3=B6nig?= , linux-media@vger.kernel.org Content-Type: text/plain; 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