3 files changed, 36 insertions, 12 deletions

diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index fd98ca998b4f..cf83f2d7e2a5 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -138,6 +138,8 @@ typedef struct {
 
 struct thread_struct {
         unsigned long   ksp;            /* Kernel stack pointer */
+        unsigned long   ksp_limit;      /* if ksp <= ksp_limit stack overflow */
+
 #ifdef CONFIG_PPC64
         unsigned long   ksp_vsid;
 #endif
@@ -182,11 +184,14 @@ struct thread_struct {
 #define ARCH_MIN_TASKALIGN 16
 
 #define INIT_SP         (sizeof(init_stack) + (unsigned long) &init_stack)
+#define INIT_SP_LIMIT \
+        (_ALIGN_UP(sizeof(init_thread_info), 16) + (unsigned long) &init_stack)
 
 
 #ifdef CONFIG_PPC32
 #define INIT_THREAD { \
         .ksp = INIT_SP, \
+        .ksp_limit = INIT_SP_LIMIT, \
         .fs = KERNEL_DS, \
         .pgdir = swapper_pg_dir, \
         .fpexc_mode = MSR_FE0 | MSR_FE1, \
@@ -194,6 +199,7 @@ struct thread_struct {
 #else
 #define INIT_THREAD  { \
         .ksp = INIT_SP, \
+        .ksp_limit = INIT_SP_LIMIT, \
         .regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
         .fs = KERNEL_DS, \
         .fpr = {0}, \
diff --git a/include/asm-powerpc/rio.h b/include/asm-powerpc/rio.h
new file mode 100644
index 000000000000..0018bf80cb25
--- /dev/null
+++ b/include/asm-powerpc/rio.h
@@ -0,0 +1,18 @@
+/*
+ * RapidIO architecture support
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify 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.
+ */
+
+#ifndef ASM_PPC_RIO_H
+#define ASM_PPC_RIO_H
+
+extern void platform_rio_init(void);
+
+#endif                          /* ASM_PPC_RIO_H */
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index fab1674b31b6..2b6559a6d113 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -204,7 +204,7 @@ extern int powersave_nap;	/* set if nap mode can be used in idle loop */
  * Changes the memory location '*ptr' to be val and returns
  * the previous value stored there.
  */
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg_u32(volatile void *p, unsigned long val)
 {
         unsigned long prev;
@@ -229,7 +229,7 @@ __xchg_u32(volatile void *p, unsigned long val)
  * Changes the memory location '*ptr' to be val and returns
  * the previous value stored there.
  */
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg_u32_local(volatile void *p, unsigned long val)
 {
         unsigned long prev;
@@ -247,7 +247,7 @@ __xchg_u32_local(volatile void *p, unsigned long val)
 }
 
 #ifdef CONFIG_PPC64
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg_u64(volatile void *p, unsigned long val)
 {
         unsigned long prev;
@@ -266,7 +266,7 @@ __xchg_u64(volatile void *p, unsigned long val)
         return prev;
 }
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg_u64_local(volatile void *p, unsigned long val)
 {
         unsigned long prev;
@@ -290,7 +290,7 @@ __xchg_u64_local(volatile void *p, unsigned long val)
  */
 extern void __xchg_called_with_bad_pointer(void);
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg(volatile void *ptr, unsigned long x, unsigned int size)
 {
         switch (size) {
@@ -305,7 +305,7 @@ __xchg(volatile void *ptr, unsigned long x, unsigned int size)
         return x;
 }
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __xchg_local(volatile void *ptr, unsigned long x, unsigned int size)
 {
         switch (size) {
@@ -338,7 +338,7 @@ __xchg_local(volatile void *ptr, unsigned long x, unsigned int size)
  */
 #define __HAVE_ARCH_CMPXCHG     1
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
 {
         unsigned int prev;
@@ -361,7 +361,7 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
         return prev;
 }
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
                         unsigned long new)
 {
@@ -384,7 +384,7 @@ __cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
 }
 
 #ifdef CONFIG_PPC64
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
 {
         unsigned long prev;
@@ -406,7 +406,7 @@ __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
         return prev;
 }
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,
                         unsigned long new)
 {
@@ -432,7 +432,7 @@ __cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,
    if something tries to do an invalid cmpxchg().  */
 extern void __cmpxchg_called_with_bad_pointer(void);
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
           unsigned int size)
 {
@@ -448,7 +448,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
         return old;
 }
 
-static __inline__ unsigned long
+static __always_inline unsigned long
 __cmpxchg_local(volatile void *ptr, unsigned long old, unsigned long new,
           unsigned int size)
 {