[POWERPC] EEH: log error only after driver notification.
It turns out many/most versions of firmware enable MMIO when
the slto-error-detail rtas call is made (in violation of the
architecture). Thus, it would be best to call slot-error-detail
only after notifying device drivers of a freeze, as otherwise,
a variety of strange and unexpected things may happen.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 3170e00..e5b7635 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -361,7 +361,6 @@
goto hard_fail;
}
- eeh_slot_error_detail(frozen_pdn, 1 /* Temporary Error */);
printk(KERN_WARNING
"EEH: This PCI device has failed %d times since last reboot: "
"location=%s driver=%s pci addr=%s\n",
@@ -375,6 +374,11 @@
*/
pci_walk_bus(frozen_bus, eeh_report_error, &result);
+ /* Since rtas may enable MMIO when posting the error log,
+ * don't post the error log until after all dev drivers
+ * have been informed. */
+ eeh_slot_error_detail(frozen_pdn, 1 /* Temporary Error */);
+
/* If all device drivers were EEH-unaware, then shut
* down all of the device drivers, and hope they
* go down willingly, without panicing the system.
