From owner-svn-src-head@FreeBSD.ORG  Mon May 28 13:58:08 2012
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E82ED106566B;
	Mon, 28 May 2012 13:58:08 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id D412B8FC08;
	Mon, 28 May 2012 13:58:08 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q4SDw83u015074;
	Mon, 28 May 2012 13:58:08 GMT (envelope-from kib@svn.freebsd.org)
Received: (from kib@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id q4SDw8Lq015072;
	Mon, 28 May 2012 13:58:08 GMT (envelope-from kib@svn.freebsd.org)
Message-Id: <201205281358.q4SDw8Lq015072@svn.freebsd.org>
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon, 28 May 2012 13:58:08 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r236183 - head/sys/dev/drm2/i915
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 28 May 2012 13:58:09 -0000

Author: kib
Date: Mon May 28 13:58:08 2012
New Revision: 236183
URL: http://svn.freebsd.org/changeset/base/236183

Log:
  Disable end of buffer fixup by default. New DDX does not need this, and
  since batch_len is unused by Linux driver, it seems that it is sometimes
  gets passed wrong. This causes command buffer corruption and GPU hung.
  
  Old GEMified DDX drivers that needs this workaround are not supported.
  
  MFC after:	1 month

Modified:
  head/sys/dev/drm2/i915/i915_gem_execbuffer.c

Modified: head/sys/dev/drm2/i915/i915_gem_execbuffer.c
==============================================================================
--- head/sys/dev/drm2/i915/i915_gem_execbuffer.c	Mon May 28 13:55:49 2012	(r236182)
+++ head/sys/dev/drm2/i915/i915_gem_execbuffer.c	Mon May 28 13:58:08 2012	(r236183)
@@ -1090,7 +1090,7 @@ DRM_DEBUG("batchbuffer does not end by M
 	pmap_unmapdev((vm_offset_t)mkva, 2 * PAGE_SIZE);
 }
 
-int i915_fix_mi_batchbuffer_end = 1;
+int i915_fix_mi_batchbuffer_end = 0;
 
  static int
 i915_reset_gen7_sol_offsets(struct drm_device *dev,