From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: [PATCH 3/8] drm/i915: implement WaForceL3Serialization on VLV and IVB Date: Thu, 25 Oct 2012 12:15:43 -0700 Message-ID: <1351192548-2992-3-git-send-email-jbarnes@virtuousgeek.org> References: <1351192548-2992-1-git-send-email-jbarnes@virtuousgeek.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from oproxy12-pub.bluehost.com (oproxy12-pub.bluehost.com [50.87.16.10]) by gabe.freedesktop.org (Postfix) with SMTP id 417E8A0A89 for ; Thu, 25 Oct 2012 12:15:51 -0700 (PDT) Received: from [67.161.37.189] (port=50070 helo=localhost.localdomain) by box514.bluehost.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.76) (envelope-from ) id 1TRSuE-0000wA-OT for intel-gfx@lists.freedesktop.org; Thu, 25 Oct 2012 13:15:50 -0600 In-Reply-To: <1351192548-2992-1-git-send-email-jbarnes@virtuousgeek.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org References: https://bugs.freedesktop.org/show_bug.cgi?id=50250 Reviewed-by: Ben Widawsky Signed-off-by: Jesse Barnes --- drivers/gpu/drm/i915/intel_pm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a5ae0e7..d04e87f 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3653,6 +3653,10 @@ static void valleyview_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_ROW_CHICKEN2, _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE)); + /* WaForceL3Serialization */ + I915_WRITE(GEN7_L3SQCREG4, I915_READ(GEN7_L3SQCREG4) & + ~L3SQ_URB_READ_CAM_MATCH_DISABLE); + /* This is required by WaCatErrorRejectionIssue */ I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | -- 1.7.9.5