From patchwork Sat Feb 24 02:03:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Souza, Jose" X-Patchwork-Id: 10240157 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 51244602A0 for ; Sat, 24 Feb 2018 02:05:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3FD5129AF0 for ; Sat, 24 Feb 2018 02:05:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3125629AF2; Sat, 24 Feb 2018 02:05:02 +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=-4.2 required=2.0 tests=BAYES_00, 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 EE99A29AF0 for ; Sat, 24 Feb 2018 02:05:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 499D76F3AC; Sat, 24 Feb 2018 02:05:00 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0EDC26F39B for ; Sat, 24 Feb 2018 02:04:56 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Feb 2018 18:04:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,385,1515484800"; d="scan'208";a="19840945" Received: from josouza-mobl.jf.intel.com ([10.24.11.40]) by fmsmga007.fm.intel.com with ESMTP; 23 Feb 2018 18:04:55 -0800 From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= To: intel-gfx@lists.freedesktop.org Date: Fri, 23 Feb 2018 18:03:10 -0800 Message-Id: <20180224020311.14813-5-jose.souza@intel.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180224020311.14813-1-jose.souza@intel.com> References: <20180224020311.14813-1-jose.souza@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 5/6] drm/i915/psr: Handle PSR RFB storage error X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dhinakaran.pandiyan@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Sink will interrupt source when it have any problem saving or reading the remote frame buffer. Signed-off-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_psr.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index ab3713c2582b..4e73edf1ea5b 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -1010,6 +1010,16 @@ void intel_psr_hpd_short_pulse_handle(struct intel_dp *intel_dp) if ((val & DP_PSR_SINK_STATE_MASK) == DP_PSR_SINK_INTERNAL_ERROR) psr->exit(intel_dp, false); + if (drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_ERROR_STATUS, &val) != 1) { + DRM_DEBUG_KMS("PSR_ERROR_STATUS read failed\n"); + goto dpcd_read_error; + } + + if (val & DP_PSR_RFB_STORAGE_ERROR) + dev_priv->psr.exit(intel_dp, false); + /* clear status register */ + drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_ERROR_STATUS, val); + /* TODO: handle other PSR/PSR2 errors */ dpcd_read_error: intel_psr_active_schedule(psr, PSR_ACTIVE_DELAY_MSEC);