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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:08 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:12 +0200 |
commit | 819833af39a91fa1c1e8252862bbda6f5a602f7b (patch) | |
tree | d5c9d1628643347ab2b5a8085acfa6f96709fda3 /include/asm-mips/system.h | |
parent | 61f2b38a17f5b21c59f2afe6cf1cbb5f28638cf9 (diff) |
Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'include/asm-mips/system.h')
-rw-r--r-- | include/asm-mips/system.h | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h deleted file mode 100644 index b6d50e2f04..0000000000 --- a/include/asm-mips/system.h +++ /dev/null @@ -1,268 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1994 - 1999 by Ralf Baechle - * Copyright (C) 1996 by Paul M. Antoine - * Copyright (C) 1994 - 1999 by Ralf Baechle - * - * Changed set_except_vector declaration to allow return of previous - * vector address value - necessary for "borrowing" vectors. - * - * Kevin D. Kissell, kevink@mips.org and Carsten Langgaard, carstenl@mips.com - * Copyright (C) 2000 MIPS Technologies, Inc. - */ -#ifndef _ASM_SYSTEM_H -#define _ASM_SYSTEM_H - -#include <linux/config.h> -#include <asm/sgidefs.h> -#include <asm/ptrace.h> -#if 0 -#include <linux/kernel.h> -#endif - -extern __inline__ void -__sti(void) -{ - __asm__ __volatile__( - ".set\tpush\n\t" - ".set\treorder\n\t" - ".set\tnoat\n\t" - "mfc0\t$1,$12\n\t" - "ori\t$1,0x1f\n\t" - "xori\t$1,0x1e\n\t" - "mtc0\t$1,$12\n\t" - ".set\tpop\n\t" - : /* no outputs */ - : /* no inputs */ - : "$1", "memory"); -} - -/* - * For cli() we have to insert nops to make shure that the new value - * has actually arrived in the status register before the end of this - * macro. - * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs - * no nops at all. - */ -extern __inline__ void -__cli(void) -{ - __asm__ __volatile__( - ".set\tpush\n\t" - ".set\treorder\n\t" - ".set\tnoat\n\t" - "mfc0\t$1,$12\n\t" - "ori\t$1,1\n\t" - "xori\t$1,1\n\t" - ".set\tnoreorder\n\t" - "mtc0\t$1,$12\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - ".set\tpop\n\t" - : /* no outputs */ - : /* no inputs */ - : "$1", "memory"); -} - -#define __save_flags(x) \ -__asm__ __volatile__( \ - ".set\tpush\n\t" \ - ".set\treorder\n\t" \ - "mfc0\t%0,$12\n\t" \ - ".set\tpop\n\t" \ - : "=r" (x)) - -#define __save_and_cli(x) \ -__asm__ __volatile__( \ - ".set\tpush\n\t" \ - ".set\treorder\n\t" \ - ".set\tnoat\n\t" \ - "mfc0\t%0,$12\n\t" \ - "ori\t$1,%0,1\n\t" \ - "xori\t$1,1\n\t" \ - ".set\tnoreorder\n\t" \ - "mtc0\t$1,$12\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - ".set\tpop\n\t" \ - : "=r" (x) \ - : /* no inputs */ \ - : "$1", "memory") - -#define __restore_flags(flags) \ -do { \ - unsigned long __tmp1; \ - \ - __asm__ __volatile__( \ - ".set\tnoreorder\t\t\t# __restore_flags\n\t" \ - ".set\tnoat\n\t" \ - "mfc0\t$1, $12\n\t" \ - "andi\t%0, 1\n\t" \ - "ori\t$1, 1\n\t" \ - "xori\t$1, 1\n\t" \ - "or\t%0, $1\n\t" \ - "mtc0\t%0, $12\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - ".set\tat\n\t" \ - ".set\treorder" \ - : "=r" (__tmp1) \ - : "0" (flags) \ - : "$1", "memory"); \ -} while(0) - -#ifdef CONFIG_SMP - -extern void __global_sti(void); -extern void __global_cli(void); -extern unsigned long __global_save_flags(void); -extern void __global_restore_flags(unsigned long); -# define sti() __global_sti() -# define cli() __global_cli() -# define save_flags(x) do { x = __global_save_flags(); } while (0) -# define restore_flags(x) __global_restore_flags(x) -# define save_and_cli(x) do { save_flags(x); cli(); } while(0) - -#else /* Single processor */ - -# define sti() __sti() -# define cli() __cli() -# define save_flags(x) __save_flags(x) -# define save_and_cli(x) __save_and_cli(x) -# define restore_flags(x) __restore_flags(x) - -#endif /* SMP */ - -/* For spinlocks etc */ -#define local_irq_save(x) __save_and_cli(x); -#define local_irq_restore(x) __restore_flags(x); -#define local_irq_disable() __cli(); -#define local_irq_enable() __sti(); - -/* - * These are probably defined overly paranoid ... - */ -#ifdef CONFIG_CPU_HAS_WB - -#include <asm/wbflush.h> -#define rmb() do { } while(0) -#define wmb() wbflush() -#define mb() wbflush() - -#else /* CONFIG_CPU_HAS_WB */ - -#define mb() \ -__asm__ __volatile__( \ - "# prevent instructions being moved around\n\t" \ - ".set\tnoreorder\n\t" \ - "# 8 nops to fool the R4400 pipeline\n\t" \ - "nop;nop;nop;nop;nop;nop;nop;nop\n\t" \ - ".set\treorder" \ - : /* no output */ \ - : /* no input */ \ - : "memory") -#define rmb() mb() -#define wmb() mb() - -#endif /* CONFIG_CPU_HAS_WB */ - -#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) - -#if !defined (_LANGUAGE_ASSEMBLY) -/* - * switch_to(n) should switch tasks to task nr n, first - * checking that n isn't the current task, in which case it does nothing. - */ -#if 0 -extern asmlinkage void *resume(void *last, void *next); -#endif -#endif /* !defined (_LANGUAGE_ASSEMBLY) */ - -#define prepare_to_switch() do { } while(0) -#define switch_to(prev,next,last) \ -do { \ - (last) = resume(prev, next); \ -} while(0) - -/* - * For 32 and 64 bit operands we can take advantage of ll and sc. - * FIXME: This doesn't work for R3000 machines. - */ -extern __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val) -{ -#ifdef CONFIG_CPU_HAS_LLSC - unsigned long dummy; - - __asm__ __volatile__( - ".set\tnoreorder\t\t\t# xchg_u32\n\t" - ".set\tnoat\n\t" - "ll\t%0, %3\n" - "1:\tmove\t$1, %2\n\t" - "sc\t$1, %1\n\t" - "beqzl\t$1, 1b\n\t" - " ll\t%0, %3\n\t" - ".set\tat\n\t" - ".set\treorder" - : "=r" (val), "=o" (*m), "=r" (dummy) - : "o" (*m), "2" (val) - : "memory"); - - return val; -#else - unsigned long flags, retval; - - save_flags(flags); - cli(); - retval = *m; - *m = val; - restore_flags(flags); - return retval; -#endif /* Processor-dependent optimization */ -} - -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) -#define tas(ptr) (xchg((ptr),1)) - -static __inline__ unsigned long -__xchg(unsigned long x, volatile void * ptr, int size) -{ - switch (size) { - case 4: - return xchg_u32(ptr, x); - } - return x; -} - -extern void *set_except_vector(int n, void *addr); - -extern void __die(const char *, struct pt_regs *, const char *where, - unsigned long line) __attribute__((noreturn)); -extern void __die_if_kernel(const char *, struct pt_regs *, const char *where, - unsigned long line); - -#define die(msg, regs) \ - __die(msg, regs, __FILE__ ":"__FUNCTION__, __LINE__) -#define die_if_kernel(msg, regs) \ - __die_if_kernel(msg, regs, __FILE__ ":"__FUNCTION__, __LINE__) - -#endif /* _ASM_SYSTEM_H */ |