Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

[powerpc.git] / include / asm-ppc64 / eeh.h

diff --git a/include/asm-ppc64/eeh.h b/include/asm-ppc64/eeh.h
index 40c8eb5..89f26ab 100644 (file)
--- a/include/asm-ppc64/eeh.h
+++ b/include/asm-ppc64/eeh.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * eeh.h
  * Copyright (C) 2001  Dave Engebretsen & Todd Inglett IBM Corporation.
  *
@@ -6,12 +6,12 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
@@ -27,8 +27,6 @@
 
 struct pci_dev;
 struct device_node;
-struct device_node;
-struct notifier_block;
 
 #ifdef CONFIG_EEH
 
@@ -37,6 +35,10 @@ struct notifier_block;
 #define EEH_MODE_NOCHECK       (1<<1)
 #define EEH_MODE_ISOLATED      (1<<2)
 
+/* Max number of EEH freezes allowed before we consider the device
+ * to be permanently disabled. */
+#define EEH_MAX_ALLOWED_FREEZES 5
+
 void __init eeh_init(void);
 unsigned long eeh_check_failure(const volatile void __iomem *token,
                                unsigned long val);
@@ -59,36 +61,14 @@ void eeh_add_device_late(struct pci_dev *);
  * eeh_remove_device - undo EEH setup for the indicated pci device
  * @dev: pci device to be removed
  *
- * This routine should be when a device is removed from a running
- * system (e.g. by hotplug or dlpar).
+ * This routine should be called when a device is removed from
+ * a running system (e.g. by hotplug or dlpar).  It unregisters
+ * the PCI device from the EEH subsystem.  I/O errors affecting
+ * this device will no longer be detected after this call; thus,
+ * i/o errors affecting this slot may leave this device unusable.
  */
 void eeh_remove_device(struct pci_dev *);
 
-#define EEH_DISABLE            0
-#define EEH_ENABLE             1
-#define EEH_RELEASE_LOADSTORE  2
-#define EEH_RELEASE_DMA                3
-
-/**
- * Notifier event flags.
- */
-#define EEH_NOTIFY_FREEZE  1
-
-/** EEH event -- structure holding pci slot data that describes
- *  a change in the isolation status of a PCI slot.  A pointer
- *  to this struct is passed as the data pointer in a notify callback.
- */
-struct eeh_event {
-       struct list_head     list;
-       struct pci_dev       *dev;
-       struct device_node   *dn;
-       int                  reset_state;
-};
-
-/** Register to find out about EEH events. */
-int eeh_register_notifier(struct notifier_block *nb);
-int eeh_unregister_notifier(struct notifier_block *nb);
-
 /**
  * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure.
  *
@@ -129,7 +109,7 @@ static inline void eeh_remove_device(struct pci_dev *dev) { }
 #define EEH_IO_ERROR_VALUE(size) (-1UL)
 #endif /* CONFIG_EEH */
 
-/* 
+/*
  * MMIO read/write operations with EEH support.
  */
 static inline u8 eeh_readb(const volatile void __iomem *addr)