powerpc/eeh: Add restore_config operation
After reset on the specific PE or PHB, we never configure AER correctly on PowerNV platform. We needn't care it on pSeries platform. The patch introduces additional EEH operation eeh_ops:: restore_config() so that we have chance to configure AER correctly for PowerNV platform. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -157,6 +157,7 @@ struct eeh_ops {
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int (*read_config)(struct device_node *dn, int where, int size, u32 *val);
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int (*write_config)(struct device_node *dn, int where, int size, u32 val);
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int (*next_error)(struct eeh_pe **pe);
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int (*restore_config)(struct device_node *dn);
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};
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extern struct eeh_ops *eeh_ops;
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@ -736,6 +736,9 @@ static void *eeh_restore_one_device_bars(void *data, void *flag)
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else
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eeh_restore_device_bars(edev, dn);
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if (eeh_ops->restore_config)
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eeh_ops->restore_config(dn);
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return NULL;
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}
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@ -359,7 +359,8 @@ static struct eeh_ops powernv_eeh_ops = {
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.configure_bridge = powernv_eeh_configure_bridge,
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.read_config = pnv_pci_cfg_read,
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.write_config = pnv_pci_cfg_write,
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.next_error = powernv_eeh_next_error
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.next_error = powernv_eeh_next_error,
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.restore_config = NULL
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};
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/**
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@ -689,7 +689,9 @@ static struct eeh_ops pseries_eeh_ops = {
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.get_log = pseries_eeh_get_log,
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.configure_bridge = pseries_eeh_configure_bridge,
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.read_config = pseries_eeh_read_config,
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.write_config = pseries_eeh_write_config
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.write_config = pseries_eeh_write_config,
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.next_error = NULL,
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.restore_config = NULL
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};
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/**
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