From patchwork Sat Mar 28 09:53:35 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: deepak.s@linux.intel.com X-Patchwork-Id: 6113521 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 43EBC9F327 for ; Sat, 28 Mar 2015 09:57:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 838AC20386 for ; Sat, 28 Mar 2015 09:57:03 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id A513D2038A for ; Sat, 28 Mar 2015 09:57:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2E47D6E140; Sat, 28 Mar 2015 02:57:02 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 36EFC6E140 for ; Sat, 28 Mar 2015 02:57:01 -0700 (PDT) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 28 Mar 2015 02:57:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,484,1422950400"; d="scan'208";a="686936962" Received: from deepu.iind.intel.com ([10.223.82.32]) by fmsmga001.fm.intel.com with ESMTP; 28 Mar 2015 02:56:59 -0700 From: deepak.s@linux.intel.com To: intel-gfx@lists.freedesktop.org Date: Sat, 28 Mar 2015 15:23:35 +0530 Message-Id: <1427536418-22801-3-git-send-email-deepak.s@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1427536418-22801-1-git-send-email-deepak.s@linux.intel.com> References: <1427536418-22801-1-git-send-email-deepak.s@linux.intel.com> Subject: [Intel-gfx] [PATCH v3 2/5] drm/i915: Re-adjusting rc6 promotional timer for chv 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 From: Deepak S After feedback from the hardware team we are changing the RC6 promotional timer to increase the power saving without changing performance. Signed-off-by: Deepak S Reviewed-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_pm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index fa4ccb3..44428e4 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4996,8 +4996,8 @@ static void cherryview_enable_rps(struct drm_device *dev) I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10); I915_WRITE(GEN6_RC_SLEEP, 0); - /* TO threshold set to 1750 us ( 0x557 * 1.28 us) */ - I915_WRITE(GEN6_RC6_THRESHOLD, 0x557); + /* TO threshold set to 500 us ( 0x186 * 1.28 us) */ + I915_WRITE(GEN6_RC6_THRESHOLD, 0x186); /* allows RC6 residency counter to work */ I915_WRITE(VLV_COUNTER_CONTROL,