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 6DC80C5DF81 for ; Tue, 18 Aug 2026 10:32:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 16F2610E4B5; Tue, 18 Aug 2026 10:32:44 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="mE0RQ4Sw"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id D6FD610E4B5 for ; Tue, 18 Aug 2026 10:32:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787049163; x=1818585163; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=95I/VMHwMH+zbW8HwW3eOKOYUfCMqma2YWc5/qZl8ck=; b=mE0RQ4SwyMsl/nFmjwOGN0M4YuRsSmrWdZ4RkWMX3OdpDpOSFzVJZ+GW vDyVq/ofFPzQm5DO4sVtJQOFgge1Y4qnH49c6Gb4K6yXFPWKW308wjA60 3iFwDh1R1gvWRVT0eaEgHElw75ht3kt3rsT0IeLf6U3rDjBv1Dtlsl8Gv srVVihMq52fO17p92qNx8B5LkZR0ICOWNRRGmEMnjINYIbil4ZCfr4jmo HPtllH+koTufvvsCA1XE/a9v0veh0wW6S5a4tB/rrVQNQaWuMqozrUKQI p1IOCHI3khcsG1zKxQ8y+gH6cFzPcnJxvR8v2h52CXzKQ9wUZfbSeUgGi g==; X-CSE-ConnectionGUID: eYeTZbY4Rpm9wVDXEmeasA== X-CSE-MsgGUID: uxFalF4ERB+dATSTLJ8D2A== X-IronPort-AV: E=McAfee;i="6800,10657,11878"; a="98691109" X-IronPort-AV: E=Sophos;i="6.25,230,1779174000"; d="scan'208";a="98691109" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2026 03:32:42 -0700 X-CSE-ConnectionGUID: LCBK6q/PTtyjjGQxElDZjQ== X-CSE-MsgGUID: lUGZM1eHSUuVj5Kx5cXJPg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,230,1779174000"; d="scan'208";a="267158938" Received: from jraag-z790m-itx-wifi.iind.intel.com ([10.190.239.23]) by fmviesa004.fm.intel.com with ESMTP; 18 Aug 2026 03:32:40 -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 v2] drm/xe/pci_error: Allow debugging PCI errors Date: Tue, 18 Aug 2026 16:00:50 +0530 Message-ID: <20260818103050.493252-1-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 --- v2: Process errors before wedging (Riana) --- 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 fb965f52be5e..79ce0c671549 100644 --- a/drivers/gpu/drm/xe/xe_pci_error.c +++ b/drivers/gpu/drm/xe/xe_pci_error.c @@ -84,6 +84,12 @@ static pci_ers_result_t xe_pci_error_mmio_enabled(struct pci_dev *pdev) xe_info(xe, "PCI error: MMIO enabled\n"); action = xe_ras_process_errors(xe); + /* 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; + } + return ras_action_to_pci_result(pdev, action); } -- 2.43.0