From patchwork Fri Nov 30 02:25:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Souza, Jose" X-Patchwork-Id: 10705679 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 97A9A13AD for ; Fri, 30 Nov 2018 02:25:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A2FA2F606 for ; Fri, 30 Nov 2018 02:25:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7E7CB2FC8C; Fri, 30 Nov 2018 02:25:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3EE062F606 for ; Fri, 30 Nov 2018 02:25:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E039F6E57F; Fri, 30 Nov 2018 02:25:35 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4F98B6E57B; Fri, 30 Nov 2018 02:25:33 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Nov 2018 18:25:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,297,1539673200"; d="scan'208";a="94323509" Received: from josouza-mobl.jf.intel.com ([10.24.11.14]) by orsmga007.jf.intel.com with ESMTP; 29 Nov 2018 18:25:31 -0800 From: =?utf-8?q?Jos=C3=A9_Roberto_de_Souza?= To: intel-gfx@lists.freedesktop.org Subject: [PATCH v2 07/11] drm/i915/psr: Check if resolution is supported by default SU granularity Date: Thu, 29 Nov 2018 18:25:21 -0800 Message-Id: <20181130022525.25676-7-jose.souza@intel.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181130022525.25676-1-jose.souza@intel.com> References: <20181130022525.25676-1-jose.souza@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Jos=C3=A9_Roberto_de_Souza?= , Dhinakaran Pandiyan , dri-devel@lists.freedesktop.org, Rodrigo Vivi Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Selective updates have a default granularity requirements as stated by eDP spec, so check if HW can match those requirements before enable PSR2. Cc: Dhinakaran Pandiyan Cc: Rodrigo Vivi Signed-off-by: José Roberto de Souza Reviewed-by: Dhinakaran Pandiyan --- drivers/gpu/drm/i915/intel_psr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index c4a8f476eea9..282ff1bc68a7 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -539,6 +539,18 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, return false; } + /* HW will always send full lines in SU blocks, so X will + * always be 0 and we only need to check the width to validate + * horizontal granularity. + * About vertical granularity HW works by SU blocks starting + * at each 4 lines with height of 4 lines, what eDP states + * that sink should support. + */ + if (crtc_hdisplay % 4) { + DRM_DEBUG_KMS("PSR2 not enabled, default SU granularity not match\n"); + return false; + } + return true; }