From patchwork Mon Apr 27 15:04:35 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 6281521 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EFEE79F1C4 for ; Mon, 27 Apr 2015 15:04:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1F4EE200F3 for ; Mon, 27 Apr 2015 15:04:51 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 044A220035 for ; Mon, 27 Apr 2015 15:04:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 458DD6E3C3; Mon, 27 Apr 2015 08:04:43 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pegasos-out.vodafone.de (pegasos-out.vodafone.de [80.84.1.38]) by gabe.freedesktop.org (Postfix) with ESMTP id 6CE4D6E3C8 for ; Mon, 27 Apr 2015 08:04:42 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by pegasos-out.vodafone.de (Rohrpostix1 Daemon) with ESMTP id 0CB1026013E; Mon, 27 Apr 2015 17:04:41 +0200 (CEST) X-Virus-Scanned: amavisd-new at vodafone.de X-Spam-Score: 0.201 X-Spam-Level: X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, FREEMAIL_FROM,RCVD_IN_DNSWL_MED,T_DKIM_INVALID,T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Authentication-Results: rohrpostix1.prod.vfnet.de (amavisd-new); dkim=pass header.i=@vodafone.de Received: from pegasos-out.vodafone.de ([127.0.0.1]) by localhost (rohrpostix1.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id P05cMqBvV+64; Mon, 27 Apr 2015 17:04:39 +0200 (CEST) Received: from smtp-03.vodafone.de (xsmail-dmz9.prod.vfnet.de [10.215.254.40]) by pegasos-out.vodafone.de (Rohrpostix1 Daemon) with ESMTP id 72C4E26059D; Mon, 27 Apr 2015 17:04:39 +0200 (CEST) X-DKIM: OpenDKIM Filter v2.6.8 pegasos-out.vodafone.de 72C4E26059D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vodafone.de; s=mail; t=1430147079; bh=wjRyC3BHMutcferoeIRiYT3S1jrjzFNnpfoPzxb/K1Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=c4sqKfJW6ec2ikXMRm8F1IwZN5ghB+BBjMvVsf92HutMqXcJjUdGpBy61x/+6wgHS Q+Z9NDcvReLUKE69Awc8dWvfL9jeERhub2rJrx2C5oImY+O8GnsNocil6tZa5HTzUa m94ME5KpqhWZxECWmbF7pj9OsA5Wvh+y/sGPgVb0= X-Virus-Scanned: amavisd-new at vodafone.de Received: from smtp-03.vodafone.de ([127.0.0.1]) by localhost (xsmail-dmz9.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DeAq0hZLhigx; Mon, 27 Apr 2015 17:04:38 +0200 (CEST) From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: alexdeucher@gmail.com Subject: [PATCH 2/4] drm/radeon: reset BOs address after clearing it. Date: Mon, 27 Apr 2015 17:04:35 +0200 Message-Id: <1430147077-5116-2-git-send-email-deathsimple@vodafone.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1430147077-5116-1-git-send-email-deathsimple@vodafone.de> References: <1430147077-5116-1-git-send-email-deathsimple@vodafone.de> MIME-Version: 1.0 Cc: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Christian König Otherwise it is possible that we will have page table corruption if we change a BOs address multiple times. Signed-off-by: Christian König CC: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_vm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 16d8e95..cabcb0a 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -490,6 +490,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, spin_lock(&vm->status_lock); list_add(&tmp->vm_status, &vm->freed); spin_unlock(&vm->status_lock); + + bo_va->addr = 0; } interval_tree_remove(&bo_va->it, &vm->va);