From mboxrd@z Thu Jan 1 00:00:00 1970 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 F25DCC5CFC1 for ; Fri, 14 Aug 2026 14:32:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B246910E56E; Fri, 14 Aug 2026 14:32:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="m74OZGv+"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6425810E56E for ; Fri, 14 Aug 2026 14:32:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786717932; x=1818253932; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=C9gtDzui4/vdwzVQI5Qqux1Tg08ZGb5e5kEieI89rFo=; b=m74OZGv+R3nW3N/n/GFCO+V/F8c6yuQEmPK9WkdGIojvdDjYihnc1OWV 6iKHpjlLnu9q7WdToNEnRPnAE/vhqgaJ/X7p8XWGXBk0n3K7m+hYLb+EK oKLy+u9ZqO3D6eITHTqeSVz2RxsG62kH8921Og4fWLcXB8+vmIiVunMDW dRCCH53WHpsdg0SFYQqfW8p2h7dAit+C4IvmisqwKIPRSOVU6c7fdXLc0 jjixZBT0LurZvGmKs1e9ZhllZq2d0iUklE+nEFmlREwDgAklVCr0vvKWA jxlEyDFcERmYFhiC+rskUjMtn5Q+n8o93uXAsnduIUVtYQvPkobf1srut Q==; X-CSE-ConnectionGUID: 0Pkf/05eRYKSxe9vFH3H5Q== X-CSE-MsgGUID: q+qnCWDjTSWFE0KrSblWQA== X-IronPort-AV: E=McAfee;i="6800,10657,11875"; a="97886849" X-IronPort-AV: E=Sophos;i="6.25,222,1779174000"; d="scan'208";a="97886849" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Aug 2026 07:32:12 -0700 X-CSE-ConnectionGUID: V+t6z40RSNmHDbqPYmtzgQ== X-CSE-MsgGUID: wKi438PcQDacIzx76lBftg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,222,1779174000"; d="scan'208";a="287718595" Received: from jraag-z790m-itx-wifi.iind.intel.com ([10.190.239.23]) by fmviesa002.fm.intel.com with ESMTP; 14 Aug 2026 07:32:10 -0700 From: Raag Jadav To: intel-xe@lists.freedesktop.org Cc: riana.tauro@intel.com, michal.wajdeczko@intel.com, matthew.d.roper@intel.com, mallesh.koujalagi@intel.com, Raag Jadav Subject: [PATCH v1] drm/xe/pci_error: Allow debugging PCI errors Date: Fri, 14 Aug 2026 20:01:21 +0530 Message-ID: <20260814143121.390791-1-raag.jadav@intel.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET is intended for debugging hangs. Disconnect the device on AER and prevent bus reset, so that it is available to the user for debugging. Signed-off-by: Raag Jadav --- drivers/gpu/drm/xe/xe_pci_error.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_pci_error.c b/drivers/gpu/drm/xe/xe_pci_error.c index e41af2ac7f23..4858ce2f9c19 100644 --- a/drivers/gpu/drm/xe/xe_pci_error.c +++ b/drivers/gpu/drm/xe/xe_pci_error.c @@ -63,6 +63,12 @@ static pci_ers_result_t xe_pci_error_detected(struct pci_dev *pdev, pci_channel_ if (xe_survivability_mode_is_boot_enabled(xe) || xe_device_wedged(xe)) return PCI_ERS_RESULT_DISCONNECT; + /* User wants to debug the error, prevent reset */ + if (xe->wedged.mode == XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET) { + xe_device_declare_wedged(xe); + return PCI_ERS_RESULT_DISCONNECT; + } + switch (state) { case pci_channel_io_normal: return PCI_ERS_RESULT_CAN_RECOVER; -- 2.43.0