diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh_pseries.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_pseries.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index b1ae0c0d1187..1893f66371fa 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -784,6 +784,43 @@ static int pseries_notify_resume(struct eeh_dev *edev) } #endif +/** + * pseries_eeh_err_inject - Inject specified error to the indicated PE + * @pe: the indicated PE + * @type: error type + * @func: specific error type + * @addr: address + * @mask: address mask + * The routine is called to inject specified error, which is + * determined by @type and @func, to the indicated PE + */ +static int pseries_eeh_err_inject(struct eeh_pe *pe, int type, int func, + unsigned long addr, unsigned long mask) +{ + struct eeh_dev *pdev; + + /* Check on PCI error type */ + if (type != EEH_ERR_TYPE_32 && type != EEH_ERR_TYPE_64) + return -EINVAL; + + switch (func) { + case EEH_ERR_FUNC_LD_MEM_ADDR: + case EEH_ERR_FUNC_LD_MEM_DATA: + case EEH_ERR_FUNC_ST_MEM_ADDR: + case EEH_ERR_FUNC_ST_MEM_DATA: + /* injects a MMIO error for all pdev's belonging to PE */ + pci_lock_rescan_remove(); + list_for_each_entry(pdev, &pe->edevs, entry) + eeh_pe_inject_mmio_error(pdev->pdev); + pci_unlock_rescan_remove(); + break; + default: + return -ERANGE; + } + + return 0; +} + static struct eeh_ops pseries_eeh_ops = { .name = "pseries", .probe = pseries_eeh_probe, @@ -792,7 +829,7 @@ static struct eeh_ops pseries_eeh_ops = { .reset = pseries_eeh_reset, .get_log = pseries_eeh_get_log, .configure_bridge = pseries_eeh_configure_bridge, - .err_inject = NULL, + .err_inject = pseries_eeh_err_inject, .read_config = pseries_eeh_read_config, .write_config = pseries_eeh_write_config, .next_error = NULL, |