From patchwork Fri May 16 00:13:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 4186531 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 DB4D19F387 for ; Fri, 16 May 2014 00:13:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2511E20397 for ; Fri, 16 May 2014 00:13:33 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 26A0420395 for ; Fri, 16 May 2014 00:13:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C6C146EF42; Thu, 15 May 2014 17:13:31 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by gabe.freedesktop.org (Postfix) with ESMTP id 56BDA6EF3F for ; Thu, 15 May 2014 17:13:29 -0700 (PDT) Received: by mail-pa0-f42.google.com with SMTP id rd3so1745118pab.15 for ; Thu, 15 May 2014 17:13:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/AfzNZgmjutymE4qzh4yqRg7NFUXR6goSobeDX4dWHY=; b=ZCbSfZXbjREST/uP5aISGvejYutIuTBZJ3a61smaOTeA4HfmwvbGRx2TrWnnA6h+d3 vmqExuUNX+uQHNpWPfCnPLerJi0Ok4x7LFy5yQR0K+2LurxB24Ekv/TY4tgVgRQUgMTP JT1w8wUMVpPSWISEG/0VRscdVMwnp/c52LyGSbH3Ehmp5WnuE0S0L7mHuq5rMF+I4cly aQeM268XG5FME2LEYoBF1qlQYstVHuTsC8h24ZAyHNYcKHceQ6iG27Y3Z0J5vQYQojEO 1xys4g2HKdZhstCg+VRUV0Jbq1Xj11SVsqDHzH+z8zcCnxzaXEQD2EHxKs6TqEFd/8KO QJuQ== X-Received: by 10.68.130.6 with SMTP id oa6mr16166066pbb.102.1400199209252; Thu, 15 May 2014 17:13:29 -0700 (PDT) Received: from localhost (jfdmzpr05-ext.jf.intel.com. [134.134.139.74]) by mx.google.com with ESMTPSA id eh4sm11176419pbc.79.2014.05.15.17.13.28 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 15 May 2014 17:13:28 -0700 (PDT) From: Rodrigo Vivi To: intel-gfx@lists.freedesktop.org Date: Thu, 15 May 2014 20:13:06 -0400 Message-Id: <1400199190-2424-8-git-send-email-rodrigo.vivi@gmail.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1400199190-2424-1-git-send-email-rodrigo.vivi@gmail.com> References: <1400199190-2424-1-git-send-email-rodrigo.vivi@gmail.com> Subject: [Intel-gfx] [PATCH 07/11] 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=-4.7 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, 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. 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 957bd9a..7755a05 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2252,6 +2252,7 @@ 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 59baee5..28144d3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1715,6 +1715,7 @@ 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;