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drm/xe/xe_pci_error: Process errors in mmio_enabled

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Query system controller when any non fatal error occurs to check
the type of the error, contain and recover.

The system controller is queried in the mmio_enabled callback.

Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com>
Link: https://patch.msgid.link/20260713074755.1278607-10-riana.tauro@intel.com
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
This commit is contained in:
Riana Tauro
2026-07-13 13:18:00 +05:30
parent d9732e498f
commit acc744fa62
1 changed files with 19 additions and 2 deletions
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21
drivers/gpu/drm/xe/xe_pci_error.c
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@@ -10,6 +10,7 @@
#include "xe_pci.h"
#include "xe_pm.h"
#include "xe_printk.h"
#include "xe_ras.h"
#include "xe_survivability_mode.h"
static void prepare_device_for_reset(struct pci_dev *pdev)
@@ -34,6 +35,21 @@ static void prepare_device_for_reset(struct pci_dev *pdev)
pci_disable_device(pdev);
}
static pci_ers_result_t ras_action_to_pci_result(struct pci_dev *pdev, u8 action)
{
switch (action) {
case XE_RAS_RECOVERY_ACTION_RECOVERED:
return PCI_ERS_RESULT_RECOVERED;
case XE_RAS_RECOVERY_ACTION_RESET:
prepare_device_for_reset(pdev);
return PCI_ERS_RESULT_NEED_RESET;
case XE_RAS_RECOVERY_ACTION_DISCONNECT:
return PCI_ERS_RESULT_DISCONNECT;
default:
return PCI_ERS_RESULT_DISCONNECT;
}
}
static pci_ers_result_t xe_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct xe_device *xe = pdev_to_xe_device(pdev);
@@ -62,11 +78,12 @@ static pci_ers_result_t xe_pci_error_detected(struct pci_dev *pdev, pci_channel_
static pci_ers_result_t xe_pci_error_mmio_enabled(struct pci_dev *pdev)
{
struct xe_device *xe = pdev_to_xe_device(pdev);
enum xe_ras_recovery_action action;
xe_info(xe, "PCI error: MMIO enabled\n");
action = xe_ras_process_errors(xe);
/* TODO: Query system controller for the type of error and take appropriate action */
return PCI_ERS_RESULT_RECOVERED;
return ras_action_to_pci_result(pdev, action);
}
static pci_ers_result_t xe_pci_error_slot_reset(struct pci_dev *pdev)