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Diffstat (limited to 'include/asm-arm/proc-armv/system.h')
-rw-r--r--include/asm-arm/proc-armv/system.h169
1 files changed, 0 insertions, 169 deletions
diff --git a/include/asm-arm/proc-armv/system.h b/include/asm-arm/proc-armv/system.h
deleted file mode 100644
index b4cfa68..0000000
--- a/include/asm-arm/proc-armv/system.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * linux/include/asm-arm/proc-armv/system.h
- *
- * Copyright (C) 1996 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_PROC_SYSTEM_H
-#define __ASM_PROC_SYSTEM_H
-
-#include <linux/config.h>
-
-/*
- * Save the current interrupt enable state & disable IRQs
- */
-#define local_irq_save(x) \
- ({ \
- unsigned long temp; \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ local_irq_save\n" \
-" orr %1, %0, #128\n" \
-" msr cpsr_c, %1" \
- : "=r" (x), "=r" (temp) \
- : \
- : "memory"); \
- })
-
-/*
- * Enable IRQs
- */
-#define local_irq_enable() \
- ({ \
- unsigned long temp; \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ local_irq_enable\n" \
-" bic %0, %0, #128\n" \
-" msr cpsr_c, %0" \
- : "=r" (temp) \
- : \
- : "memory"); \
- })
-
-/*
- * Disable IRQs
- */
-#define local_irq_disable() \
- ({ \
- unsigned long temp; \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ local_irq_disable\n" \
-" orr %0, %0, #128\n" \
-" msr cpsr_c, %0" \
- : "=r" (temp) \
- : \
- : "memory"); \
- })
-
-/*
- * Enable FIQs
- */
-#define __stf() \
- ({ \
- unsigned long temp; \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ stf\n" \
-" bic %0, %0, #64\n" \
-" msr cpsr_c, %0" \
- : "=r" (temp) \
- : \
- : "memory"); \
- })
-
-/*
- * Disable FIQs
- */
-#define __clf() \
- ({ \
- unsigned long temp; \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ clf\n" \
-" orr %0, %0, #64\n" \
-" msr cpsr_c, %0" \
- : "=r" (temp) \
- : \
- : "memory"); \
- })
-
-/*
- * Save the current interrupt enable state.
- */
-#define local_save_flags(x) \
- ({ \
- __asm__ __volatile__( \
- "mrs %0, cpsr @ local_save_flags\n" \
- : "=r" (x) \
- : \
- : "memory"); \
- })
-
-/*
- * restore saved IRQ & FIQ state
- */
-#define local_irq_restore(x) \
- __asm__ __volatile__( \
- "msr cpsr_c, %0 @ local_irq_restore\n" \
- : \
- : "r" (x) \
- : "memory")
-
-#if defined(CONFIG_CPU_SA1100) || defined(CONFIG_CPU_SA110)
-/*
- * On the StrongARM, "swp" is terminally broken since it bypasses the
- * cache totally. This means that the cache becomes inconsistent, and,
- * since we use normal loads/stores as well, this is really bad.
- * Typically, this causes oopsen in filp_close, but could have other,
- * more disasterous effects. There are two work-arounds:
- * 1. Disable interrupts and emulate the atomic swap
- * 2. Clean the cache, perform atomic swap, flush the cache
- *
- * We choose (1) since its the "easiest" to achieve here and is not
- * dependent on the processor type.
- */
-#define swp_is_buggy
-#endif
-
-static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
-{
- extern void __bad_xchg(volatile void *, int);
- unsigned long ret;
-#ifdef swp_is_buggy
- unsigned long flags;
-#endif
-
- switch (size) {
-#ifdef swp_is_buggy
- case 1:
- local_irq_save(flags);
- ret = *(volatile unsigned char *)ptr;
- *(volatile unsigned char *)ptr = x;
- local_irq_restore(flags);
- break;
-
- case 4:
- local_irq_save(flags);
- ret = *(volatile unsigned long *)ptr;
- *(volatile unsigned long *)ptr = x;
- local_irq_restore(flags);
- break;
-#else
- case 1: __asm__ __volatile__ ("swpb %0, %1, [%2]"
- : "=&r" (ret)
- : "r" (x), "r" (ptr)
- : "memory");
- break;
- case 4: __asm__ __volatile__ ("swp %0, %1, [%2]"
- : "=&r" (ret)
- : "r" (x), "r" (ptr)
- : "memory");
- break;
-#endif
- default: __bad_xchg(ptr, size), ret = 0;
- }
-
- return ret;
-}
-
-#endif