powerpc/eeh: pseries platform EEH initialization

The platform specific EEH operations have been abstracted by
struct eeh_ops. The individual platroms, including pSeries, needs
doing necessary initialization before the platform dependent EEH
operations work properly.

The patch is addressing that and do necessary platform initialization
for pSeries platform. More specificly, it will figure out the tokens
of EEH related RTAS calls.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index b0e3fb0b32a5..bb6de6c97911 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -1279,6 +1279,18 @@ void __init eeh_init(void)
 {
         struct device_node *phb, *np;
         struct eeh_early_enable_info info;
+        int ret;
+
+        /* call platform initialization function */
+        if (!eeh_ops) {
+                pr_warning("%s: Platform EEH operation not found\n",
+                        __func__);
+                return;
+        } else if ((ret = eeh_ops->init())) {
+                pr_warning("%s: Failed to call platform init function (%d)\n",
+                        __func__, ret);
+                return;
+        }
 
         raw_spin_lock_init(&confirm_error_lock);
         spin_lock_init(&slot_errbuf_lock);