From patchwork Tue Oct 2 22:43:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jesse Barnes X-Patchwork-Id: 1539501 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 9CB9E3FDAE for ; Tue, 2 Oct 2012 22:47:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 668299E963 for ; Tue, 2 Oct 2012 15:47:46 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from oproxy11-pub.bluehost.com (oproxy11-pub.bluehost.com [173.254.64.10]) by gabe.freedesktop.org (Postfix) with SMTP id 5C1849E9CC for ; Tue, 2 Oct 2012 15:44:07 -0700 (PDT) Received: (qmail 18813 invoked by uid 0); 2 Oct 2012 22:44:07 -0000 Received: from unknown (HELO box514.bluehost.com) (74.220.219.114) by oproxy11.bluehost.com with SMTP; 2 Oct 2012 22:44:07 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuousgeek.org; s=default; h=References:In-Reply-To:Message-Id:Date:Subject:To:From; bh=upU5OecPIob/xlwQ4GcJCXDuubS/GE8pV3XoUP76QIk=; b=QHNSh/SlNa/0RCG+6HahpAYw0eC9wDeWcwR2g23wUmNqRfK6G/vYMEKlDWYvruEfSmBcw/7HZFTkUyPgNTr5WBxG2JxvbgQ3ZVF+56hqG+Vg8ujPSi+tzeylvxd7febC; Received: from [192.55.60.129] (port=30963 helo=jbarnes-t420.nims.intel.com) by box514.bluehost.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.76) (envelope-from ) id 1TJBCA-00065W-Fz for intel-gfx@lists.freedesktop.org; Tue, 02 Oct 2012 16:44:06 -0600 From: Jesse Barnes To: intel-gfx@lists.freedesktop.org Date: Tue, 2 Oct 2012 17:43:42 -0500 Message-Id: <1349217826-2538-9-git-send-email-jbarnes@virtuousgeek.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1349217826-2538-1-git-send-email-jbarnes@virtuousgeek.org> References: <1349217826-2538-1-git-send-email-jbarnes@virtuousgeek.org> X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 192.55.60.129 authed with jbarnes@virtuousgeek.org} Subject: [Intel-gfx] [PATCH 08/12] drm/i915: implement WaDisablePSDDualDispatchEnable on IVB X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 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 Workaround for dual port PS dispatch on GT1. Signed-off-by: Jesse Barnes --- drivers/gpu/drm/i915/intel_pm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 400dd05..ce8d7b2 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3541,6 +3541,16 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE | CHICKEN3_DGMG_DONE_FIX_DISABLE); + /* WaDisablePSDDualDispatchEnable */ + if (IS_MOBILE(dev)) + I915_WRITE(GEN7_HALF_SLICE_CHICKEN1, + I915_READ(GEN7_HALF_SLICE_CHICKEN1) | + _MASKED_BIT_ENABLE(GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE)); + else + I915_WRITE(GEN7_HALF_SLICE_CHICKEN1_IVB, + I915_READ(GEN7_HALF_SLICE_CHICKEN1) | + _MASKED_BIT_ENABLE(GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE)); + /* Apply the WaDisableRHWOOptimizationForRenderHang workaround. */ I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, GEN7_CSC1_RHWO_OPT_DISABLE_IN_RCC);