From patchwork Thu Oct 1 09:57:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: sagar.a.kamble@intel.com X-Patchwork-Id: 7307191 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4223EBEEA4 for ; Thu, 1 Oct 2015 09:55:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C18C020595 for ; Thu, 1 Oct 2015 09:55:50 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id D4D4120585 for ; Thu, 1 Oct 2015 09:55:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AACEA6E1F2; Thu, 1 Oct 2015 02:55:48 -0700 (PDT) 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 C65296E1F2 for ; Thu, 1 Oct 2015 02:55:47 -0700 (PDT) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP; 01 Oct 2015 02:55:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,616,1437462000"; d="scan'208";a="571987025" Received: from sakamble-desktop.iind.intel.com ([10.223.82.56]) by FMSMGA003.fm.intel.com with ESMTP; 01 Oct 2015 02:55:46 -0700 From: Sagar Arun Kamble To: intel-gfx@lists.freedesktop.org Date: Thu, 1 Oct 2015 15:27:44 +0530 Message-Id: <1443693464-5581-1-git-send-email-sagar.a.kamble@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: Subject: [Intel-gfx] [PATCH v2 1/1] drm/i915: Update Promotion timer for RC6 TO Mode 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 When using RC6 timeout mode, the timeout value should be written to GEN6_RC6_THRESHOLD. v2: Updated commit message. (Tom) Signed-off-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/intel_pm.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index c98eee6..c16f496 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4791,7 +4791,6 @@ static void gen9_enable_rc6(struct drm_device *dev) I915_WRITE(GUC_MAX_IDLE_COUNT, 0xA); I915_WRITE(GEN6_RC_SLEEP, 0); - I915_WRITE(GEN6_RC6_THRESHOLD, 37500); /* 37.5/125ms per EI */ /* 2c: Program Coarse Power Gating Policies. */ I915_WRITE(GEN9_MEDIA_PG_IDLE_HYSTERESIS, 25); @@ -4802,16 +4801,19 @@ static void gen9_enable_rc6(struct drm_device *dev) rc6_mask = GEN6_RC_CTL_RC6_ENABLE; DRM_INFO("RC6 %s\n", (rc6_mask & GEN6_RC_CTL_RC6_ENABLE) ? "on" : "off"); - + /* WaRsUseTimeoutMode */ if ((IS_SKYLAKE(dev) && INTEL_REVID(dev) <= SKL_REVID_D0) || - (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A0)) + (IS_BROXTON(dev) && INTEL_REVID(dev) <= BXT_REVID_A0)) { + I915_WRITE(GEN6_RC6_THRESHOLD, 625); /* 800us */ I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE | GEN7_RC_CTL_TO_MODE | rc6_mask); - else + } else { + I915_WRITE(GEN6_RC6_THRESHOLD, 37500); /* 37.5/125ms per EI */ I915_WRITE(GEN6_RC_CONTROL, GEN6_RC_CTL_HW_ENABLE | GEN6_RC_CTL_EI_MODE(1) | rc6_mask); + } /* * 3b: Enable Coarse Power Gating only when RC6 is enabled.