From patchwork Fri Aug 16 00:30:37 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: James Ausmus X-Patchwork-Id: 2845349 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 B3CFA9F239 for ; Fri, 16 Aug 2013 00:54:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F32A9202B1 for ; Fri, 16 Aug 2013 00:54:43 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 193E02021E for ; Fri, 16 Aug 2013 00:54:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 15680E854A for ; Thu, 15 Aug 2013 17:54:43 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id D8413E7096 for ; Thu, 15 Aug 2013 17:32:08 -0700 (PDT) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 15 Aug 2013 17:29:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.89,889,1367996400"; d="scan'208";a="387901441" Received: from jausmus-gentoo-dev5.jf.intel.com ([10.7.198.60]) by orsmga002.jf.intel.com with ESMTP; 15 Aug 2013 17:31:56 -0700 From: james.ausmus@intel.com To: intel-gfx@lists.freedesktop.org Date: Thu, 15 Aug 2013 17:30:37 -0700 Message-Id: <1376613069-15790-13-git-send-email-james.ausmus@intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1376613069-15790-1-git-send-email-james.ausmus@intel.com> References: <1376613069-15790-1-git-send-email-james.ausmus@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] CHROMIUM: enable i915 power-saving render C-state 6 by default. 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: , 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=-7.0 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: Todd Broch BUG=chrome-os-partner:6768 TEST=manual, - boot kernel 1. cat /sys/module/i915/parameters/i915_enable_rc6 - should equal 1 2. start powertop, goto 'Idle Stats' tab - make sure that the Package c-states (C6, C7) are entered at some non-trivial percentage when system is idle Signed-off-by: Todd Broch Change-Id: Ib557a14e3cf20b55a6670808e681ef21b1e0ed1b Reviewed-on: https://gerrit.chromium.org/gerrit/12280 Reviewed-by: Stéphane Marchesin --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1172658..cdcc7c0 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -63,8 +63,8 @@ module_param_named(semaphores, i915_semaphores, int, 0600); MODULE_PARM_DESC(semaphores, "Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))"); -int i915_enable_rc6 __read_mostly = -1; -module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0400); +int i915_enable_rc6 __read_mostly = 1; +module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); MODULE_PARM_DESC(i915_enable_rc6, "Enable power-saving render C-state 6. " "Different stages can be selected via bitmask values "