powerpc/eeh: More logs for EEH initialization

The patch adds more logs to EEH initialization functions for
debugging purpose. Also, the machine type (pSeries) is checked
in the platform initialization to assure it's the correct platform
to invoke it.

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

2 files changed, 15 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/pseries/eeh_dev.c b/arch/powerpc/platforms/pseries/eeh_dev.c
index 8e3443b260e4..a0cee3a29c97 100644
--- a/arch/powerpc/platforms/pseries/eeh_dev.c
+++ b/arch/powerpc/platforms/pseries/eeh_dev.c
@@ -100,6 +100,8 @@ static int __init eeh_dev_phb_init(void)
         list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
                 eeh_dev_phb_init_dynamic(phb);
 
+        pr_info("EEH: devices created\n");
+
         return 0;
 }
 
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 5e2805a019c3..cf6d6cc0be80 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -561,7 +561,19 @@ static struct eeh_ops pseries_eeh_ops = {
  */
 static int __init eeh_pseries_init(void)
 {
-        return eeh_ops_register(&pseries_eeh_ops);
+        int ret = -EINVAL;
+
+        if (!machine_is(pseries))
+                return ret;
+
+        ret = eeh_ops_register(&pseries_eeh_ops);
+        if (!ret)
+                pr_info("EEH: pSeries platform initialized\n");
+        else
+                pr_info("EEH: pSeries platform initialization failure (%d)\n",
+                        ret);
+
+        return ret;
 }
 
 early_initcall(eeh_pseries_init);