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-rw-r--r--include/asm-generic/system.h141
1 files changed, 0 insertions, 141 deletions
diff --git a/include/asm-generic/system.h b/include/asm-generic/system.h
deleted file mode 100644
index 215efa74f5a2..000000000000
--- a/include/asm-generic/system.h
+++ /dev/null
@@ -1,141 +0,0 @@
-/* Generic system definitions, based on MN10300 definitions.
- *
- * It should be possible to use these on really simple architectures,
- * but it serves more as a starting point for new ports.
- *
- * Copyright (C) 2007 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 Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef __ASM_GENERIC_SYSTEM_H
-#define __ASM_GENERIC_SYSTEM_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/types.h>
-#include <linux/irqflags.h>
-
-#include <asm/cmpxchg-local.h>
-#include <asm/cmpxchg.h>
-
-struct task_struct;
-
-/* context switching is now performed out-of-line in switch_to.S */
-extern struct task_struct *__switch_to(struct task_struct *,
- struct task_struct *);
-#define switch_to(prev, next, last) \
- do { \
- ((last) = __switch_to((prev), (next))); \
- } while (0)
-
-#define arch_align_stack(x) (x)
-
-#define nop() asm volatile ("nop")
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * Force strict CPU ordering.
- * And yes, this is required on UP too when we're talking
- * to devices.
- *
- * This implementation only contains a compiler barrier.
- */
-
-#define mb() asm volatile ("": : :"memory")
-#define rmb() mb()
-#define wmb() asm volatile ("": : :"memory")
-
-#ifdef CONFIG_SMP
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-#else
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#endif
-
-#define set_mb(var, value) do { var = value; mb(); } while (0)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-
-#define read_barrier_depends() do {} while (0)
-#define smp_read_barrier_depends() do {} while (0)
-
-/*
- * we make sure local_irq_enable() doesn't cause priority inversion
- */
-#ifndef __ASSEMBLY__
-
-/* This function doesn't exist, so you'll get a linker error
- * if something tries to do an invalid xchg(). */
-extern void __xchg_called_with_bad_pointer(void);
-
-static inline
-unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
-{
- unsigned long ret, flags;
-
- switch (size) {
- case 1:
-#ifdef __xchg_u8
- return __xchg_u8(x, ptr);
-#else
- local_irq_save(flags);
- ret = *(volatile u8 *)ptr;
- *(volatile u8 *)ptr = x;
- local_irq_restore(flags);
- return ret;
-#endif /* __xchg_u8 */
-
- case 2:
-#ifdef __xchg_u16
- return __xchg_u16(x, ptr);
-#else
- local_irq_save(flags);
- ret = *(volatile u16 *)ptr;
- *(volatile u16 *)ptr = x;
- local_irq_restore(flags);
- return ret;
-#endif /* __xchg_u16 */
-
- case 4:
-#ifdef __xchg_u32
- return __xchg_u32(x, ptr);
-#else
- local_irq_save(flags);
- ret = *(volatile u32 *)ptr;
- *(volatile u32 *)ptr = x;
- local_irq_restore(flags);
- return ret;
-#endif /* __xchg_u32 */
-
-#ifdef CONFIG_64BIT
- case 8:
-#ifdef __xchg_u64
- return __xchg_u64(x, ptr);
-#else
- local_irq_save(flags);
- ret = *(volatile u64 *)ptr;
- *(volatile u64 *)ptr = x;
- local_irq_restore(flags);
- return ret;
-#endif /* __xchg_u64 */
-#endif /* CONFIG_64BIT */
-
- default:
- __xchg_called_with_bad_pointer();
- return x;
- }
-}
-
-#define xchg(ptr, x) \
- ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __ASM_GENERIC_SYSTEM_H */