From patchwork Tue Sep 8 09:31:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: arun.siluvery@linux.intel.com X-Patchwork-Id: 7139501 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0F2299F1D5 for ; Tue, 8 Sep 2015 09:32:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3990720639 for ; Tue, 8 Sep 2015 09:32:06 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 0F3C220631 for ; Tue, 8 Sep 2015 09:32:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9C2E16E143; Tue, 8 Sep 2015 02:32:01 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id D576D6E0B4 for ; Tue, 8 Sep 2015 02:32:00 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 08 Sep 2015 02:32:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,489,1437462000"; d="scan'208";a="799918952" Received: from asiluver-linux.isw.intel.com ([10.102.226.117]) by orsmga002.jf.intel.com with ESMTP; 08 Sep 2015 02:31:58 -0700 From: Arun Siluvery To: intel-gfx@lists.freedesktop.org Date: Tue, 8 Sep 2015 10:31:49 +0100 Message-Id: <1441704713-21575-2-git-send-email-arun.siluvery@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1441704713-21575-1-git-send-email-arun.siluvery@linux.intel.com> References: <1441704713-21575-1-git-send-email-arun.siluvery@linux.intel.com> Cc: Mika Kuoppala Subject: [Intel-gfx] [PATCH 2/6] drm/i915/bxt: Add WaSetClckGatingDisableMedia X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Arun Siluvery Reviewed-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_pm.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 84ed9ab..2c719b0 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6894,6 +6894,7 @@ enum skl_disp_power_wells { #define GEN7_DOP_CLOCK_GATE_ENABLE (1<<0) #define GEN8_DOP_CLOCK_GATE_CFCLK_ENABLE (1<<2) #define GEN8_DOP_CLOCK_GATE_GUC_ENABLE (1<<4) +#define GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE (1<<6) #define GEN8_GARBCNTL 0xB004 #define GEN9_GAPS_TSV_CREDIT_DISABLE (1<<7) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 64bc77e..920872a 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -134,6 +134,12 @@ static void bxt_init_clock_gating(struct drm_device *dev) */ I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_TLBPF); } + + /* WaSetClckGatingDisableMedia:bxt */ + if (INTEL_REVID(dev) == BXT_REVID_A0) { + I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) & + ~GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE)); + } } static void i915_pineview_get_mem_freq(struct drm_device *dev)