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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 9ABCCC6377D for ; Thu, 15 Jul 2021 19:09:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7FF15613D4 for ; Thu, 15 Jul 2021 19:09:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243945AbhGOTMc (ORCPT ); Thu, 15 Jul 2021 15:12:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:46430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243646AbhGOTJ7 (ORCPT ); Thu, 15 Jul 2021 15:09:59 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0FEDF61415; Thu, 15 Jul 2021 19:06:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626375977; bh=cUqT5HGXumM4TBFcuqG8XVP4oJ3+IBDFlH7m3Z1t154=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j/f0Ka41V1pf4W8iOsWXVQZ8NG9iLnqCNbgL1wq53r05RS8GecDIY/TKmzLpWNSLN j+YlUSxNBioeUHlqjIN4oZ8v6U3uxs3oxHnTbmUwrkyTHzdyznTqyjEHENGaxqdlVS BaU+6epua5zL/2/3xzxMSOOFATejn2TTl+D9r1bs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrey Grodzovsky , =?UTF-8?q?Christian=20K=C3=B6nig?= , Sasha Levin Subject: [PATCH 5.13 033/266] drm/sched: Avoid data corruptions Date: Thu, 15 Jul 2021 20:36:28 +0200 Message-Id: <20210715182620.169774199@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210715182613.933608881@linuxfoundation.org> References: <20210715182613.933608881@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Andrey Grodzovsky [ Upstream commit 0b10ab80695d61422337ede6ff496552d8ace99d ] Wait for all dependencies of a job to complete before killing it to avoid data corruptions. Signed-off-by: Andrey Grodzovsky Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20210519141407.88444-1-andrey.grodzovsky@amd.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/scheduler/sched_entity.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c index cb58f692dad9..86a4209d8c77 100644 --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -222,11 +222,16 @@ static void drm_sched_entity_kill_jobs_cb(struct dma_fence *f, static void drm_sched_entity_kill_jobs(struct drm_sched_entity *entity) { struct drm_sched_job *job; + struct dma_fence *f; int r; while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) { struct drm_sched_fence *s_fence = job->s_fence; + /* Wait for all dependencies to avoid data corruptions */ + while ((f = job->sched->ops->dependency(job, entity))) + dma_fence_wait(f, false); + drm_sched_fence_scheduled(s_fence); dma_fence_set_error(&s_fence->finished, -ESRCH); -- 2.30.2