From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: [PATCH 59/62] drm/i915/bdw: Sampler power bypass disable Date: Sat, 2 Nov 2013 21:07:57 -0700 Message-ID: <1383451680-11173-60-git-send-email-benjamin.widawsky@intel.com> References: <1383451680-11173-1-git-send-email-benjamin.widawsky@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 7BEF4EE738 for ; Sat, 2 Nov 2013 21:08:31 -0700 (PDT) In-Reply-To: <1383451680-11173-1-git-send-email-benjamin.widawsky@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Intel GFX Cc: Ben Widawsky List-Id: intel-gfx@lists.freedesktop.org From: Ben Widawsky BDW-A workaround. BDW Bug #1899812 Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_pm.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 8080a4d..3ae3751 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4988,6 +4988,7 @@ #define HALF_SLICE_CHICKEN3 0xe184 #define GEN8_CENTROID_PIXEL_OPT_DIS (1<<8) +#define GEN8_SAMPLER_POWER_BYPASS_DIS (1<<1) #define G4X_AUD_VID_DID (dev_priv->info->display_mmio_offset + 0x62020) #define INTEL_AUDIO_DEVCL 0x808629FB diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index dd0d375..48ffe54 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5288,6 +5288,8 @@ static void gen8_init_clock_gating(struct drm_device *dev) I915_WRITE(HALF_SLICE_CHICKEN3, _MASKED_BIT_ENABLE(GEN8_CENTROID_PIXEL_OPT_DIS)); + I915_WRITE(HALF_SLICE_CHICKEN3, + _MASKED_BIT_ENABLE(GEN8_SAMPLER_POWER_BYPASS_DIS)); I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_BWGTLB_DISABLE)); /* WaSwitchSolVfFArbitrationPriority */ -- 1.8.4.2