From patchwork Wed Aug 4 14:22:17 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 117063 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o74EO0fn022774 for ; Wed, 4 Aug 2010 14:24:35 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 804519F01D for ; Wed, 4 Aug 2010 07:24:00 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (server109-228-4-14.live-servers.net [109.228.4.14]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AF229F00F for ; Wed, 4 Aug 2010 07:23:13 -0700 (PDT) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.66.37; Received: from arrandale.alporthouse.com (unverified [78.156.66.37]) by fireflyinternet.com (Firefly Internet SMTP) with ESMTP id 1771558-1500048 for multiple; Wed, 04 Aug 2010 15:24:54 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Wed, 4 Aug 2010 15:22:17 +0100 Message-Id: <1280931737-32001-1-git-send-email-chris@chris-wilson.co.uk> X-Mailer: git-send-email 1.7.1 X-Originating-IP: 78.156.66.37 Subject: [Intel-gfx] [PATCH] drm/i915: Write to display base last. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 04 Aug 2010 14:24:37 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9b5fab4..f9d88c2 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1486,15 +1486,13 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, Start, Offset, x, y, crtc->fb->pitch); I915_WRITE(dspstride, crtc->fb->pitch); if (IS_I965G(dev)) { - I915_WRITE(dspbase, Offset); - I915_READ(dspbase); I915_WRITE(dspsurf, Start); - I915_READ(dspsurf); I915_WRITE(dsptileoff, (y << 16) | x); + I915_WRITE(dspbase, Offset); } else { I915_WRITE(dspbase, Start + Offset); - I915_READ(dspbase); } + POSTING_READ(dspbase); if ((IS_I965G(dev) || plane == 0)) intel_update_fbc(crtc, &crtc->mode);