From patchwork Wed Nov 27 15:44:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: deepak.s@intel.com X-Patchwork-Id: 3248821 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 06BAD9F54F for ; Wed, 27 Nov 2013 15:43:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E29E9205DB for ; Wed, 27 Nov 2013 15:43:19 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 54E30205D8 for ; Wed, 27 Nov 2013 15:43:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 890D4FAC25 for ; Wed, 27 Nov 2013 07:43:15 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id C7D2BFAB92 for ; Wed, 27 Nov 2013 07:43:05 -0800 (PST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 27 Nov 2013 07:43:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,782,1378882800"; d="scan'208";a="441081747" Received: from deepaks.iind.intel.com ([10.223.82.165]) by fmsmga002.fm.intel.com with ESMTP; 27 Nov 2013 07:43:03 -0800 From: deepak.s@intel.com To: intel-gfx@lists.freedesktop.org Date: Wed, 27 Nov 2013 21:14:03 +0530 Message-Id: <1385567043-14626-1-git-send-email-deepak.s@intel.com> X-Mailer: git-send-email 1.8.4.2 Cc: Deepak S Subject: [Intel-gfx] [PATCH 1/2] drm/i915/vlv: correct promotion timer value for RC6 Timeout method. 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 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 From: Deepak S For RC6 Timeout method, we need to set promotion timer to 1750 us ( 1367 * 1.28 us) Signed-off-by: Deepak S --- drivers/gpu/drm/i915/intel_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 04e9863..cf3d54d 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4102,7 +4102,8 @@ static void valleyview_enable_rps(struct drm_device *dev) for_each_ring(ring, dev_priv, i) I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10); - I915_WRITE(GEN6_RC6_THRESHOLD, 0xc350); + /* Timer for RC6 Timeout Mode set to 1750 us ( 1367 * 1.28 us) */ + I915_WRITE(GEN6_RC6_THRESHOLD, 0x557); /* allows RC6 residency counter to work */ I915_WRITE(VLV_COUNTER_CONTROL,