From patchwork Thu Jun 12 17:16:42 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 4346231 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 0A6AC9F314 for ; Fri, 13 Jun 2014 00:15:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 46BBF20303 for ; Fri, 13 Jun 2014 00:15:25 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 71883202F0 for ; Fri, 13 Jun 2014 00:15:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 88E996E986; Thu, 12 Jun 2014 17:15:23 -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 0A15C6E1E7 for ; Thu, 12 Jun 2014 17:15:18 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP; 12 Jun 2014 17:10:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,468,1400050800"; d="scan'208";a="527695684" Received: from di-604.jf.intel.com (HELO rdvivi-hillsboro.jf.intel.com) ([10.7.201.28]) by orsmga001.jf.intel.com with ESMTP; 12 Jun 2014 17:15:17 -0700 From: Rodrigo Vivi To: intel-gfx@lists.freedesktop.org Date: Thu, 12 Jun 2014 10:16:42 -0700 Message-Id: <1402593406-17869-5-git-send-email-rodrigo.vivi@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1402593406-17869-1-git-send-email-rodrigo.vivi@intel.com> References: <1402593406-17869-1-git-send-email-rodrigo.vivi@intel.com> Cc: Rodrigo Vivi Subject: [Intel-gfx] [PATCH 5/9] drm/i915: BDW PSR: Add single frame update support. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 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=-3.3 required=5.0 tests=BAYES_00, DATE_IN_PAST_06_12, 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 When link is in stand by and PSR exit is triggered by a primary or sprite plane flip this mode allows only one single updated frame to be send to display than get back to PSR immediately. Reviewed-by: Vijay Purushothaman Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_dp.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 05e2541..9ce017b 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2409,6 +2409,7 @@ enum punit_power_well { #define EDP_PSR_BASE(dev) (IS_HASWELL(dev) ? 0x64800 : 0x6f800) #define EDP_PSR_CTL(dev) (EDP_PSR_BASE(dev) + 0) #define EDP_PSR_ENABLE (1<<31) +#define BDW_PSR_SINGLE_FRAME (1<<30) #define EDP_PSR_LINK_DISABLE (0<<27) #define EDP_PSR_LINK_STANDBY (1<<27) #define EDP_PSR_MIN_LINK_ENTRY_TIME_MASK (3<<25) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index f7b2414..0d9c7b6 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1723,6 +1723,7 @@ static void intel_edp_psr_enable_source(struct intel_dp *intel_dp) val |= EDP_PSR_TP2_TP3_TIME_0us; val |= EDP_PSR_TP1_TIME_0us; val |= EDP_PSR_SKIP_AUX_EXIT; + val |= IS_BROADWELL(dev) ? BDW_PSR_SINGLE_FRAME : 0; } else val |= EDP_PSR_LINK_DISABLE;