Merge git://oak/home/sfr/kernels/iseries/work
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 3a857b2..79de231 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -478,32 +478,47 @@
* an interrupt context, which is bad.
*/
-static void __eeh_mark_slot (struct device_node *dn)
+static void __eeh_mark_slot (struct device_node *dn, int mode_flag)
{
while (dn) {
- PCI_DN(dn)->eeh_mode |= EEH_MODE_ISOLATED;
+ if (PCI_DN(dn)) {
+ PCI_DN(dn)->eeh_mode |= mode_flag;
- if (dn->child)
- __eeh_mark_slot (dn->child);
+ if (dn->child)
+ __eeh_mark_slot (dn->child, mode_flag);
+ }
dn = dn->sibling;
}
}
-static void __eeh_clear_slot (struct device_node *dn)
+void eeh_mark_slot (struct device_node *dn, int mode_flag)
+{
+ dn = find_device_pe (dn);
+ PCI_DN(dn)->eeh_mode |= mode_flag;
+ __eeh_mark_slot (dn->child, mode_flag);
+}
+
+static void __eeh_clear_slot (struct device_node *dn, int mode_flag)
{
while (dn) {
- PCI_DN(dn)->eeh_mode &= ~EEH_MODE_ISOLATED;
- if (dn->child)
- __eeh_clear_slot (dn->child);
+ if (PCI_DN(dn)) {
+ PCI_DN(dn)->eeh_mode &= ~mode_flag;
+ PCI_DN(dn)->eeh_check_count = 0;
+ if (dn->child)
+ __eeh_clear_slot (dn->child, mode_flag);
+ }
dn = dn->sibling;
}
}
-static inline void eeh_clear_slot (struct device_node *dn)
+void eeh_clear_slot (struct device_node *dn, int mode_flag)
{
unsigned long flags;
spin_lock_irqsave(&confirm_error_lock, flags);
- __eeh_clear_slot (dn);
+ dn = find_device_pe (dn);
+ PCI_DN(dn)->eeh_mode &= ~mode_flag;
+ PCI_DN(dn)->eeh_check_count = 0;
+ __eeh_clear_slot (dn->child, mode_flag);
spin_unlock_irqrestore(&confirm_error_lock, flags);
}
@@ -528,7 +543,6 @@
int rets[3];
unsigned long flags;
struct pci_dn *pdn;
- struct device_node *pe_dn;
int rc = 0;
__get_cpu_var(total_mmio_ffs)++;
@@ -630,8 +644,7 @@
/* Avoid repeated reports of this failure, including problems
* with other functions on this device, and functions under
* bridges. */
- pe_dn = find_device_pe (dn);
- __eeh_mark_slot (pe_dn);
+ eeh_mark_slot (dn, EEH_MODE_ISOLATED);
spin_unlock_irqrestore(&confirm_error_lock, flags);
eeh_send_failure_event (dn, dev, rets[0], rets[2]);
@@ -743,9 +756,6 @@
rc, state, pdn->node->full_name);
return;
}
-
- if (state == 0)
- eeh_clear_slot (pdn->node->parent->child);
}
/** rtas_set_slot_reset -- assert the pci #RST line for 1/4 second
@@ -764,6 +774,12 @@
#define PCI_BUS_RST_HOLD_TIME_MSEC 250
msleep (PCI_BUS_RST_HOLD_TIME_MSEC);
+
+ /* We might get hit with another EEH freeze as soon as the
+ * pci slot reset line is dropped. Make sure we don't miss
+ * these, and clear the flag now. */
+ eeh_clear_slot (pdn->node, EEH_MODE_ISOLATED);
+
rtas_pci_slot_reset (pdn, 0);
/* After a PCI slot has been reset, the PCI Express spec requires
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index fcb66b9..e8593a6 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -306,7 +306,7 @@
{
struct pci_controller *phb;
- if (PCI_DN(dn)->phb) {
+ if (PCI_DN(dn) && PCI_DN(dn)->phb) {
/* PHB already exists */
return -EINVAL;
}
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index d86c478..9896fad 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -87,6 +87,13 @@
int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
+/**
+ * mark and clear slots: find "partition endpoint" PE and set or
+ * clear the flags for each subnode of the PE.
+ */
+void eeh_mark_slot (struct device_node *dn, int mode_flag);
+void eeh_clear_slot (struct device_node *dn, int mode_flag);
+
#endif
#endif /* _ASM_POWERPC_PPC_PCI_H */
diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h
index 76bb026..ddfe186 100644
--- a/include/asm-ppc64/prom.h
+++ b/include/asm-ppc64/prom.h
@@ -204,6 +204,8 @@
extern unsigned long prom_init(unsigned long, unsigned long, unsigned long,
unsigned long, unsigned long);
extern void finish_device_tree(void);
+extern void unflatten_device_tree(void);
+extern void early_init_devtree(void *);
extern int device_is_compatible(struct device_node *device, const char *);
extern int machine_is_compatible(const char *compat);
extern unsigned char *get_property(struct device_node *node, const char *name,
diff --git a/include/asm-ppc64/system.h b/include/asm-ppc64/system.h
index 0cdd66c..bf9a6ab 100644
--- a/include/asm-ppc64/system.h
+++ b/include/asm-ppc64/system.h
@@ -149,6 +149,8 @@
extern struct task_struct * _switch(struct thread_struct *prev,
struct thread_struct *next);
+extern unsigned long klimit;
+
extern int powersave_nap; /* set if nap mode can be used in idle loop */
/*