The patch adds new EEH operation post_init. It's used to notify
the platform that EEH core has completed the EEH probe. By that,
PowerNV platform starts to use the services supplied by EEH
functionality.
Signed-off-by: Gavin Shan <sha...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/eeh.h | 1 +
arch/powerpc/kernel/eeh.c | 11 +++++++++++
2 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index beb3cbc..beec788 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -131,6 +131,7 @@ static inline struct pci_dev *eeh_dev_to_pci_dev(struct
eeh_dev *edev)
struct eeh_ops {
char *name;
int (*init)(void);
+ int (*post_init)(void);
void* (*of_probe)(struct device_node *dn, void *flag);
int (*dev_probe)(struct pci_dev *dev, void *flag);
int (*set_option)(struct eeh_pe *pe, int option);
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index c865c5f..a29cf47 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -720,6 +720,17 @@ int __init eeh_init(void)
return -EINVAL;
}
+ /*
+ * Call platform post-initialization. Actually, It's good chance
+ * to inform platform that EEH is ready to supply service if the
+ * I/O cache stuff has been built up.
+ */
+ if (eeh_ops->post_init) {
+ ret = eeh_ops->post_init();
+ if (ret)
+ return ret;
+ }
+
if (eeh_subsystem_enabled)
pr_info("EEH: PCI Enhanced I/O Error Handling Enabled\n");
else
--
1.7.5.4
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