Disintegrate asm/system.h for FRV

Disintegrate asm/system.h for FRV.

Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 5 insertions, 157 deletions

diff --git a/arch/frv/include/asm/system.h b/arch/frv/include/asm/system.h
index 6c10fd2c626d..5c707a235403 100644
--- a/arch/frv/include/asm/system.h
+++ b/arch/frv/include/asm/system.h
@@ -1,158 +1,6 @@
-/* system.h: FR-V CPU control definitions
- *
- * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * 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_SYSTEM_H
-#define _ASM_SYSTEM_H
-
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <linux/kernel.h>
-
-struct thread_struct;
-
-/*
- * switch_to(prev, next) should switch from task `prev' to `next'
- * `prev' will never be the same as `next'.
- * The `mb' is to tell GCC not to cache `current' across this call.
- */
-extern asmlinkage
-struct task_struct *__switch_to(struct thread_struct *prev_thread,
-				struct thread_struct *next_thread,
-				struct task_struct *prev);
-
-#define switch_to(prev, next, last)					\
-do {									\
-	(prev)->thread.sched_lr =					\
-		(unsigned long) __builtin_return_address(0);		\
-	(last) = __switch_to(&(prev)->thread, &(next)->thread, (prev));	\
-	mb();								\
-} while(0)
-
-/*
- * Force strict CPU ordering.
- */
-#define nop()			asm volatile ("nop"::)
-#define mb()			asm volatile ("membar" : : :"memory")
-#define rmb()			asm volatile ("membar" : : :"memory")
-#define wmb()			asm volatile ("membar" : : :"memory")
-#define read_barrier_depends()	do { } while (0)
-
-#define smp_mb()			barrier()
-#define smp_rmb()			barrier()
-#define smp_wmb()			barrier()
-#define smp_read_barrier_depends()	do {} while(0)
-#define set_mb(var, value) \
-	do { var = (value); barrier(); } while (0)
-
-extern void die_if_kernel(const char *, ...) __attribute__((format(printf, 1, 2)));
+/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
+#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
+#include <asm/exec.h>
+#include <asm/switch_to.h>
 extern void free_initmem(void);
-
-#define arch_align_stack(x) (x)
-
-/*****************************************************************************/
-/*
- * compare and conditionally exchange value with memory
- * - if (*ptr == test) then orig = *ptr; *ptr = test;
- * - if (*ptr != test) then orig = *ptr;
- */
-extern uint64_t __cmpxchg_64(uint64_t test, uint64_t new, volatile uint64_t *v);
-
-#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
-
-#define cmpxchg(ptr, test, new)							\
-({										\
-	__typeof__(ptr) __xg_ptr = (ptr);					\
-	__typeof__(*(ptr)) __xg_orig, __xg_tmp;					\
-	__typeof__(*(ptr)) __xg_test = (test);					\
-	__typeof__(*(ptr)) __xg_new = (new);					\
-										\
-	switch (sizeof(__xg_orig)) {						\
-	case 4:									\
-		asm volatile(							\
-			"0:						\n"	\
-			"	orcc		gr0,gr0,gr0,icc3	\n"	\
-			"	ckeq		icc3,cc7		\n"	\
-			"	ld.p		%M0,%1			\n"	\
-			"	orcr		cc7,cc7,cc3		\n"	\
-			"	sub%I4cc	%1,%4,%2,icc0		\n"	\
-			"	bne		icc0,#0,1f		\n"	\
-			"	cst.p		%3,%M0		,cc3,#1	\n"	\
-			"	corcc		gr29,gr29,gr0	,cc3,#1	\n"	\
-			"	beq		icc3,#0,0b		\n"	\
-			"1:						\n"	\
-			: "+U"(*__xg_ptr), "=&r"(__xg_orig), "=&r"(__xg_tmp)	\
-			: "r"(__xg_new), "NPr"(__xg_test)			\
-			: "memory", "cc7", "cc3", "icc3", "icc0"		\
-			);							\
-		break;								\
-										\
-	default:								\
-		__xg_orig = (__typeof__(__xg_orig))0;				\
-		asm volatile("break");						\
-		break;								\
-	}									\
-										\
-	__xg_orig;								\
-})
-
-#else
-
-extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new);
-
-#define cmpxchg(ptr, test, new)							\
-({										\
-	__typeof__(ptr) __xg_ptr = (ptr);					\
-	__typeof__(*(ptr)) __xg_orig;						\
-	__typeof__(*(ptr)) __xg_test = (test);					\
-	__typeof__(*(ptr)) __xg_new = (new);					\
-										\
-	switch (sizeof(__xg_orig)) {						\
-	case 4: __xg_orig = (__force __typeof__(*ptr))				\
-			__cmpxchg_32((__force uint32_t *)__xg_ptr,		\
-					 (__force uint32_t)__xg_test,		\
-					 (__force uint32_t)__xg_new); break;	\
-	default:								\
-		__xg_orig = (__typeof__(__xg_orig))0;				\
-		asm volatile("break");						\
-		break;								\
-	}									\
-										\
-	__xg_orig;								\
-})
-
-#endif
-
-#include <asm-generic/cmpxchg-local.h>
-
-static inline unsigned long __cmpxchg_local(volatile void *ptr,
-				      unsigned long old,
-				      unsigned long new, int size)
-{
-	switch (size) {
-	case 4:
-		return cmpxchg((unsigned long *)ptr, old, new);
-	default:
-		return __cmpxchg_local_generic(ptr, old, new, size);
-	}
-
-	return old;
-}
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n)				  	\
-	((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o),	\
-			(unsigned long)(n), sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-
-#endif /* _ASM_SYSTEM_H */