From 9b8234d176bb98e8612ddc4c3dbfd014219d5f6f Mon Sep 17 00:00:00 2001 From: Raag Jadav Date: Wed, 19 Aug 2026 17:05:19 +0530 Subject: [PATCH] drm/xe/pci_error: Allow debugging PCI errors Update PCI error handling path to disconnect the device when XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET is set. This prevents bus reset and preserves the device state so that it is available to the user for debugging. Signed-off-by: Raag Jadav Reviewed-by: Riana Tauro Link: https://patch.msgid.link/20260819113519.510853-1-raag.jadav@intel.com Signed-off-by: Matt Roper --- 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); }