[PATCH] ppc64: RTAS error reporting restructuring

05-eeh-slot-error-detail.patch

This patch encapsulates a section of code that reports the EEH event.
The new subroutine can be used in several places to report the error.

Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 30 insertions, 16 deletions

diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c
index 926d3110dfd7..b23159464abb 100644
--- a/arch/ppc64/kernel/eeh.c
+++ b/arch/ppc64/kernel/eeh.c
@@ -397,6 +397,28 @@ void __init pci_addr_cache_build(void)
 /* --------------------------------------------------------------- */
 /* Above lies the PCI Address Cache. Below lies the EEH event infrastructure */
 
+void eeh_slot_error_detail (struct pci_dn *pdn, int severity)
+{
+        unsigned long flags;
+        int rc;
+
+        /* Log the error with the rtas logger */
+        spin_lock_irqsave(&slot_errbuf_lock, flags);
+        memset(slot_errbuf, 0, eeh_error_buf_size);
+
+        rc = rtas_call(ibm_slot_error_detail,
+                       8, 1, NULL, pdn->eeh_config_addr,
+                       BUID_HI(pdn->phb->buid),
+                       BUID_LO(pdn->phb->buid), NULL, 0,
+                       virt_to_phys(slot_errbuf),
+                       eeh_error_buf_size,
+                       severity);
+
+        if (rc == 0)
+                log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
+        spin_unlock_irqrestore(&slot_errbuf_lock, flags);
+}
+
 /**
  * eeh_register_notifier - Register to find out about EEH events.
  * @nb: notifier block to callback on events
@@ -454,9 +476,12 @@ static void eeh_panic(struct pci_dev *dev, int reset_state)
          * Since the panic_on_oops sysctl is used to halt the system
          * in light of potential corruption, we can use it here.
          */
-        if (panic_on_oops)
+        if (panic_on_oops) {
+                struct device_node *dn = pci_device_to_OF_node(dev);
+                eeh_slot_error_detail (PCI_DN(dn), 2 /* Permanent Error */);
                 panic("EEH: MMIO failure (%d) on device:%s\n", reset_state,
                       pci_name(dev));
+        }
         else {
                 __get_cpu_var(ignored_failures)++;
                 printk(KERN_INFO "EEH: Ignored MMIO failure (%d) on device:%s\n",
@@ -539,7 +564,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
         int ret;
         int rets[3];
         unsigned long flags;
-        int rc, reset_state;
+        int reset_state;
         struct eeh_event  *event;
         struct pci_dn *pdn;
 
@@ -603,20 +628,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
 
         reset_state = rets[0];
 
-        spin_lock_irqsave(&slot_errbuf_lock, flags);
-        memset(slot_errbuf, 0, eeh_error_buf_size);
-
-        rc = rtas_call(ibm_slot_error_detail,
-                       8, 1, NULL, pdn->eeh_config_addr,
-                       BUID_HI(pdn->phb->buid),
-                       BUID_LO(pdn->phb->buid), NULL, 0,
-                       virt_to_phys(slot_errbuf),
-                       eeh_error_buf_size,
-                       1 /* Temporary Error */);
-
-        if (rc == 0)
-                log_error(slot_errbuf, ERR_TYPE_RTAS_LOG, 0);
-        spin_unlock_irqrestore(&slot_errbuf_lock, flags);
+        eeh_slot_error_detail (pdn, 1 /* Temporary Error */);
 
         printk(KERN_INFO "EEH: MMIO failure (%d) on device: %s %s\n",
                rets[0], dn->name, dn->full_name);
@@ -783,6 +795,8 @@ void __init eeh_init(void)
         struct device_node *phb, *np;
         struct eeh_early_enable_info info;
 
+        spin_lock_init(&slot_errbuf_lock);
+
         np = of_find_node_by_path("/rtas");
         if (np == NULL)
                 return;