X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-m32r%2Fsystem.h;h=2365de5c29553d5d6c3dca5679370c62c6b64c27;hb=9004acc70e8c49c50c4c7b652f906f1e0ed5709d;hp=99ee09889ff78578ca1c913e1c75a1ce4b65f319;hpb=920841d8d1d61bc12b43f95a579a5374f6d98f81;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 99ee09889ff..2365de5c295 100644
--- 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() \
@@ -122,8 +124,6 @@ static inline void local_irq_disable(void)
 #define xchg(ptr,x) \
 	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
-#define tas(ptr)	(xchg((ptr),1))
-
 #ifdef CONFIG_SMP
 extern void  __xchg_called_with_bad_pointer(void);
 #endif
@@ -138,14 +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;