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powerpc/eeh: Make eeh_init() public

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For EEH on PowerNV platform, we will do EEH probe based on the
real PCI devices. The PCI devices are available after PCI probe.
So we have to call eeh_init() explicitly on PowerNV platform
after PCI probe. The patch also does EEH probe for PowerNV platform
in eeh_init().

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gavin Shan
2013-06-20 13:20:56 +08:00
committed by Benjamin Herrenschmidt
parent 8cdb283371
commit 51fb5f5632
2 changed files with 27 additions and 3 deletions
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22
arch/powerpc/kernel/eeh.c
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@@ -674,11 +674,21 @@ int __exit eeh_ops_unregister(const char *name)
* Even if force-off is set, the EEH hardware is still enabled, so that
* newer systems can boot.
*/
static int __init eeh_init(void)
int __init eeh_init(void)
{
struct pci_controller *hose, *tmp;
struct device_node *phb;
int ret;
static int cnt = 0;
int ret = 0;
/*
* We have to delay the initialization on PowerNV after
* the PCI hierarchy tree has been built because the PEs
* are figured out based on PCI devices instead of device
* tree nodes
*/
if (machine_is(powernv) && cnt++ <= 0)
return ret;
/* call platform initialization function */
if (!eeh_ops) {
@@ -700,6 +710,14 @@ static int __init eeh_init(void)
phb = hose->dn;
traverse_pci_devices(phb, eeh_ops->of_probe, NULL);
}
} else if (eeh_probe_mode_dev()) {
list_for_each_entry_safe(hose, tmp,
&hose_list, list_node)
pci_walk_bus(hose->bus, eeh_ops->dev_probe, NULL);
} else {
pr_warning("%s: Invalid probe mode %d\n",
__func__, eeh_probe_mode);
return -EINVAL;
}
if (eeh_subsystem_enabled)