From patchwork Thu Dec 5 13:51:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 3288321 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 367539F387 for ; Thu, 5 Dec 2013 13:52:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 954332051D for ; Thu, 5 Dec 2013 13:51:55 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 042072051A for ; Thu, 5 Dec 2013 13:51:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F3BEAFB6BE; Thu, 5 Dec 2013 05:51:52 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 0F0A7FB72A for ; Thu, 5 Dec 2013 05:51:51 -0800 (PST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 05 Dec 2013 05:51:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,833,1378882800"; d="scan'208";a="419888757" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.66]) by orsmga001.jf.intel.com with SMTP; 05 Dec 2013 05:51:48 -0800 Received: by stinkbox (sSMTP sendmail emulation); Thu, 05 Dec 2013 15:51:48 +0200 From: ville.syrjala@linux.intel.com To: intel-gfx@lists.freedesktop.org Date: Thu, 5 Dec 2013 15:51:29 +0200 Message-Id: <1386251501-10602-3-git-send-email-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1386251501-10602-1-git-send-email-ville.syrjala@linux.intel.com> References: <1386251501-10602-1-git-send-email-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 02/14] drm/i915: Add ILK/SNB/IVB WM latency field support 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@lists.freedesktop.org Errors-To: intel-gfx-bounces@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: Ville Syrjälä Add a new function ilk_wm_lp_latency() which will tell us what to write into the WM_LPx register latency field. HSW is different from erlier gens in this regard. Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_pm.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 940f159..f2cd539 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2716,6 +2716,17 @@ static int ilk_wm_lp_to_level(int wm_lp, const struct intel_pipe_wm *pipe_wm) return wm_lp + (wm_lp >= 2 && pipe_wm->wm[4].enable); } +/* The value we need to program into the WM_LPx latency field */ +static unsigned int ilk_wm_lp_latency(struct drm_device *dev, int level) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + if (IS_HASWELL(dev)) + return 2 * level; + else + return dev_priv->wm.pri_latency[level]; +} + static void hsw_compute_wm_results(struct drm_device *dev, const struct intel_pipe_wm *merged, enum intel_ddb_partitioning partitioning, @@ -2738,7 +2749,7 @@ static void hsw_compute_wm_results(struct drm_device *dev, break; results->wm_lp[wm_lp - 1] = WM3_LP_EN | - ((level * 2) << WM1_LP_LATENCY_SHIFT) | + (ilk_wm_lp_latency(dev, level) << WM1_LP_LATENCY_SHIFT) | (r->pri_val << WM1_LP_SR_SHIFT) | r->cur_val;