From patchwork Tue Apr 2 09:49:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Hogander, Jouni" X-Patchwork-Id: 13613613 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C57DBCD1292 for ; Tue, 2 Apr 2024 09:50:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9A49310FBD1; Tue, 2 Apr 2024 09:50:33 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="bhjo+qwr"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id BA46D10FBD1 for ; Tue, 2 Apr 2024 09:50:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1712051433; x=1743587433; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Tz78wr1eWle9La7XLzo1yJR5GtLBYf2wdnczEYrHziU=; b=bhjo+qwr8UVXh2it2xtslrTikD3HdGmmgicfa/guCKSwrp4mdGnGRZp2 sJJB8gwO2ljPm566Z0b2zAlIVkgF53BXxDuQisP4hfaylp7l20Z5OlzbA B7mV2azAwHzVtUnEtRcJdCom3bH69C5zEmm/AuVvf0B9fi0xIj7Eug5Dl icNgpsbG4rfVcWR6MAK0UYHeFOCgHpQGHWj6njD//atAJ8s329+zclXOy PCVz85jddsT73EjLk6vcZftk49nbexNXvyZW05esKcpFD0aQYDqRu2AoX JPbN8gefVBvCGUDOKgaewhbiDNEpvu6F+UyYMCEdBhJfnlQWFvW3A6Ih0 Q==; X-CSE-ConnectionGUID: S9ElocZ7R6CyTFMloRgz2A== X-CSE-MsgGUID: dzj+5+3XTPK7mG4KYaeVag== X-IronPort-AV: E=McAfee;i="6600,9927,11031"; a="7422640" X-IronPort-AV: E=Sophos;i="6.07,174,1708416000"; d="scan'208";a="7422640" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Apr 2024 02:50:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,174,1708416000"; d="scan'208";a="22693291" Received: from sudhirj1-mobl.ger.corp.intel.com (HELO jhogande-mobl1.intel.com) ([10.249.34.252]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Apr 2024 02:50:31 -0700 From: =?utf-8?q?Jouni_H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org Cc: Animesh Manna , =?utf-8?q?Jouni_H=C3=B6gander?= Subject: [PATCH v4 05/19] drm/i915/psr: Check possible errors for panel replay as well Date: Tue, 2 Apr 2024 12:49:57 +0300 Message-Id: <20240402095011.200558-6-jouni.hogander@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240402095011.200558-1-jouni.hogander@intel.com> References: <20240402095011.200558-1-jouni.hogander@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On HPD interrupt we want to check if the reason for HPD was some panel replay error detected by monitor/panel. This is already done for PSR. We want to do this for panel replay as well. Modify intel_psr_short_pulse to support panel replay as well. Signed-off-by: Jouni Högander Reviewed-by: Animesh Manna --- drivers/gpu/drm/i915/display/intel_psr.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 07c1ddec2d86..d7547eefc2fa 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -3256,6 +3256,13 @@ static void psr_capability_changed_check(struct intel_dp *intel_dp) } } +/* + * On common bits: + * DP_PSR_RFB_STORAGE_ERROR == DP_PANEL_REPLAY_RFB_STORAGE_ERROR + * DP_PSR_VSC_SDP_UNCORRECTABLE_ERROR == DP_PANEL_REPLAY_VSC_SDP_UNCORRECTABLE_ERROR + * DP_PSR_LINK_CRC_ERROR == DP_PANEL_REPLAY_LINK_CRC_ERROR + * this function is relying on PSR definitions + */ void intel_psr_short_pulse(struct intel_dp *intel_dp) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); @@ -3265,7 +3272,7 @@ void intel_psr_short_pulse(struct intel_dp *intel_dp) DP_PSR_VSC_SDP_UNCORRECTABLE_ERROR | DP_PSR_LINK_CRC_ERROR; - if (!CAN_PSR(intel_dp)) + if (!CAN_PSR(intel_dp) && !CAN_PANEL_REPLAY(intel_dp)) return; mutex_lock(&psr->lock); @@ -3279,12 +3286,14 @@ void intel_psr_short_pulse(struct intel_dp *intel_dp) goto exit; } - if (status == DP_PSR_SINK_INTERNAL_ERROR || (error_status & errors)) { + if ((!psr->panel_replay_enabled && status == DP_PSR_SINK_INTERNAL_ERROR) || + (error_status & errors)) { intel_psr_disable_locked(intel_dp); psr->sink_not_reliable = true; } - if (status == DP_PSR_SINK_INTERNAL_ERROR && !error_status) + if (!psr->panel_replay_enabled && status == DP_PSR_SINK_INTERNAL_ERROR && + !error_status) drm_dbg_kms(&dev_priv->drm, "PSR sink internal error, disabling PSR\n"); if (error_status & DP_PSR_RFB_STORAGE_ERROR) @@ -3304,8 +3313,10 @@ void intel_psr_short_pulse(struct intel_dp *intel_dp) /* clear status register */ drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_ERROR_STATUS, error_status); - psr_alpm_check(intel_dp); - psr_capability_changed_check(intel_dp); + if (!psr->panel_replay_enabled) { + psr_alpm_check(intel_dp); + psr_capability_changed_check(intel_dp); + } exit: mutex_unlock(&psr->lock);