Merge branch 'master' into upstream-fixes

[linux-2.6-omap-h63xx.git] / include / asm-m32r / system.h

diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 06cdece358653bf249ac001f250287cc8852f939..2365de5c29553d5d6c3dca5679370c62c6b64c27 100644 (file)
--- a/include/asm-m32r/system.h
+++ b/include/asm-m32r/system.h
@@ -10,6 +10,7 @@
  * Copyright (C) 2004, 2006  Hirokazu Takata <takata at linux-m32r.org>
  */
 
+#include <linux/compiler.h>
 #include <asm/assembler.h>
 
 #ifdef __KERNEL__
@@ -21,12 +22,22 @@
  * `next' and `prev' should be struct task_struct, but it isn't always defined
  */
 
+#if defined(CONFIG_FRAME_POINTER) || \
+       !defined(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER)
+#define M32R_PUSH_FP " push fp\n"
+#define M32R_POP_FP  " pop  fp\n"
+#else
+#define M32R_PUSH_FP ""
+#define M32R_POP_FP  ""
+#endif
+
 #define switch_to(prev, next, last)  do { \
        __asm__ __volatile__ ( \
                "       seth    lr, #high(1f)                           \n" \
                "       or3     lr, lr, #low(1f)                        \n" \
                "       st      lr, @%4  ; store old LR                 \n" \
                "       ld      lr, @%5  ; load new LR                  \n" \
+                       M32R_PUSH_FP \
                "       st      sp, @%2  ; store old SP                 \n" \
                "       ld      sp, @%3  ; load new SP                  \n" \
                "       push    %1  ; store `prev' on new stack         \n" \
@@ -34,6 +45,7 @@
                "       .fillinsn                                       \n" \
                "1:                                                     \n" \
                "       pop     %0  ; restore `__last' from new stack   \n" \
+                       M32R_POP_FP \
                : "=r" (last) \
                : "0" (prev), \
                  "r" (&(prev->thread.sp)), "r" (&(next->thread.sp)), \
@@ -42,16 +54,6 @@
        ); \
 } while(0)
 
-/*
- * On SMP systems, when the scheduler does migration-cost autodetection,
- * it needs a way to flush as much of the CPU's caches as possible.
- *
- * TODO: fill this in!
- */
-static inline void sched_cacheflush(void)
-{
-}
-
 /* Interrupt Control */
 #if !defined(CONFIG_CHIP_M32102) && !defined(CONFIG_CHIP_M32104)
 #define local_irq_enable() \
@@ -136,14 +138,14 @@ extern void  __xchg_called_with_bad_pointer(void);
        "add3   "reg0", "addr", #0x2000;                \n\t"   \
        "ld     "reg0", @"reg0";                        \n\t"   \
        "unlock "reg0", @"reg1";                        \n\t"
-       /* FIXME: This workaround code cannot handle kenrel modules
+       /* FIXME: This workaround code cannot handle kernel modules
         * correctly under SMP environment.
         */
 #else  /* CONFIG_CHIP_M32700_TS1 */
 #define DCACHE_CLEAR(reg0, reg1, addr)
 #endif /* CONFIG_CHIP_M32700_TS1 */
 
-static inline unsigned long
+static __always_inline unsigned long
 __xchg(unsigned long x, volatile void * ptr, int size)
 {
        unsigned long flags;