From patchwork Fri Mar 6 05:37:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: akash.goel@intel.com X-Patchwork-Id: 5949971 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 4CB9A9F318 for ; Fri, 6 Mar 2015 05:31:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6DC3D2024F for ; Fri, 6 Mar 2015 05:31:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 15A48202B8 for ; Fri, 6 Mar 2015 05:31:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8F1B06E83E; Thu, 5 Mar 2015 21:31:50 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id CED756E83D for ; Thu, 5 Mar 2015 21:31:48 -0800 (PST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 05 Mar 2015 21:31:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,351,1422950400"; d="scan'208";a="675998469" Received: from akashgoe-desktop.iind.intel.com ([10.223.82.76]) by fmsmga001.fm.intel.com with ESMTP; 05 Mar 2015 21:31:47 -0800 From: akash.goel@intel.com To: intel-gfx@lists.freedesktop.org Date: Fri, 6 Mar 2015 11:07:19 +0530 Message-Id: <1425620244-12637-7-git-send-email-akash.goel@intel.com> X-Mailer: git-send-email 1.9.2 In-Reply-To: <1425620244-12637-1-git-send-email-akash.goel@intel.com> References: <1425620244-12637-1-git-send-email-akash.goel@intel.com> MIME-Version: 1.0 Cc: Akash Goel Subject: [Intel-gfx] [PATCH 06/11] drm/i915/skl: Updated the gen6_rps_limits function 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: , 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: Akash Goel RP Interrupt Up/Down Frequency Limits register (A014) definition has changed for SKL. Updated the gen6_rps_limits function as per that v2: Renamed the function to intel_rps_limits (Chris) Signed-off-by: Akash Goel Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_pm.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b9b6fc1..c49950f 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3705,7 +3705,7 @@ static void ironlake_disable_drps(struct drm_device *dev) * ourselves, instead of doing a rmw cycle (which might result in us clearing * all limits and the gpu stuck at whatever frequency it is at atm). */ -static u32 gen6_rps_limits(struct drm_i915_private *dev_priv, u8 val) +static u32 intel_rps_limits(struct drm_i915_private *dev_priv, u8 val) { u32 limits; @@ -3715,9 +3715,15 @@ static u32 gen6_rps_limits(struct drm_i915_private *dev_priv, u8 val) * the hw runs at the minimal clock before selecting the desired * frequency, if the down threshold expires in that window we will not * receive a down interrupt. */ - limits = dev_priv->rps.max_freq_softlimit << 24; - if (val <= dev_priv->rps.min_freq_softlimit) - limits |= dev_priv->rps.min_freq_softlimit << 16; + if (IS_GEN9(dev_priv->dev)) { + limits = (dev_priv->rps.max_freq_softlimit) << 23; + if (val <= dev_priv->rps.min_freq_softlimit) + limits |= (dev_priv->rps.min_freq_softlimit) << 14; + } else { + limits = dev_priv->rps.max_freq_softlimit << 24; + if (val <= dev_priv->rps.min_freq_softlimit) + limits |= dev_priv->rps.min_freq_softlimit << 16; + } return limits; } @@ -3858,7 +3864,7 @@ static void gen6_set_rps(struct drm_device *dev, u8 val) /* Make sure we continue to get interrupts * until we hit the minimum or maximum frequencies. */ - I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, gen6_rps_limits(dev_priv, val)); + I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, intel_rps_limits(dev_priv, val)); I915_WRITE(GEN6_PMINTRMSK, gen6_rps_pm_mask(dev_priv, val)); POSTING_READ(GEN6_RPNSWREQ);