From patchwork Wed Apr 6 16:07:10 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jesse Barnes X-Patchwork-Id: 690121 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p36G8qKn005305 for ; Wed, 6 Apr 2011 16:09:13 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0991F9EF55 for ; Wed, 6 Apr 2011 09:08:52 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from oproxy2-pub.bluehost.com (oproxy2-pub.bluehost.com [67.222.39.60]) by gabe.freedesktop.org (Postfix) with SMTP id 8CAE89EF39 for ; Wed, 6 Apr 2011 09:07:19 -0700 (PDT) Received: (qmail 16827 invoked by uid 0); 6 Apr 2011 16:07:18 -0000 Received: from unknown (HELO box514.bluehost.com) (74.220.219.114) by oproxy2.bluehost.com with SMTP; 6 Apr 2011 16:07:18 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer:X-Identified-User; b=iaCmf9nnl5mhaWYOs1ASeBb9Z7//PQC364z9Xl3YRy4MCss7XgUSSgV1uQOUDa26d8yX7rf1OdYmfhWgRfxiHkLpQdVU+ATzoXEuK3hd0QgE9QVP0DoBhrhaauuFs5jQ; Received: from c-67-161-37-189.hsd1.ca.comcast.net ([67.161.37.189] helo=jbarnes-desktop.intel.com) by box514.bluehost.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1Q7VGH-0001CS-K1; Wed, 06 Apr 2011 10:07:17 -0600 From: Jesse Barnes To: intel-gfx@lists.freedesktop.org Date: Wed, 6 Apr 2011 09:07:10 -0700 Message-Id: <1302106030-10268-1-git-send-email-jbarnes@virtuousgeek.org> X-Mailer: git-send-email 1.7.1 X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 67.161.37.189 authed with jbarnes@virtuousgeek.org} Cc: stable@kernel.org Subject: [Intel-gfx] [PATCH] drm/i915: disable RC6+ on Sandy Bridge 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-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 06 Apr 2011 16:09:13 +0000 (UTC) RC6+ can cause trouble, so keep it disabled (this costs us a little power, around 20mW I think, but better safe than sorry). Cc: stable@kernel.org Signed-off-by: Jesse Barnes --- drivers/gpu/drm/i915/intel_display.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 432fc04..b265bd3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6874,7 +6874,6 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv) I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */ I915_WRITE(GEN6_RC_CONTROL, - GEN6_RC_CTL_RC6p_ENABLE | GEN6_RC_CTL_RC6_ENABLE | GEN6_RC_CTL_EI_MODE(1) | GEN6_RC_CTL_HW_ENABLE);