u-boot-1.1.6 源码包

				/*				 *  linux/include/asm-arm/processor.h				 *				 *  Copyright (C) 1995-2002 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_ARM_PROCESSOR_H				#define __ASM_ARM_PROCESSOR_H								/*				 * Default implementation of macro that returns current				 * instruction pointer ("program counter").				 */				#define current_text_addr() ({ __label__ _l; _l: &&_l;})								#define FP_SIZE 35								struct fp_hard_struct {					unsigned int save[FP_SIZE];		/* as yet undefined */				};								struct fp_soft_struct {					unsigned int save[FP_SIZE];		/* undefined information */				};								union fp_state {					struct fp_hard_struct	hard;					struct fp_soft_struct	soft;				};								typedef unsigned long mm_segment_t;		/* domain register	*/								#ifdef __KERNEL__								#define EISA_bus 0				#define MCA_bus 0				#define MCA_bus__is_a_macro								#include 				#include 				#if 0	/* XXX###XXX */				#include 				#endif	/* XXX###XXX */				#include 				#include 								union debug_insn {					u32	arm;					u16	thumb;				};								struct debug_entry {					u32			address;					union debug_insn	insn;				};								struct debug_info {					int			nsaved;					struct debug_entry	bp[2];				};								struct thread_struct {					atomic_t			refcount;											/* fault info	  */					unsigned long			address;					unsigned long			trap_no;					unsigned long			error_code;											/* floating point */					union fp_state			fpstate;											/* debugging	  */					struct debug_info		debug;											/* context info	  */					struct context_save_struct	*save;					EXTRA_THREAD_STRUCT				};								#define INIT_THREAD  {					\					refcount:	ATOMIC_INIT(1),			\					EXTRA_THREAD_STRUCT_INIT			\				}								/*				 * Return saved PC of a blocked thread.				 */				static inline unsigned long thread_saved_pc(struct thread_struct *t)				{					return t->save ? pc_pointer(t->save->pc) : 0;				}								static inline unsigned long thread_saved_fp(struct thread_struct *t)				{					return t->save ? t->save->fp : 0;				}								/* Forward declaration, a strange C thing */				struct task_struct;								/* Free all resources held by a thread. */				extern void release_thread(struct task_struct *);								/* Copy and release all segment info associated with a VM */				#define copy_segments(tsk, mm)		do { } while (0)				#define release_segments(mm)		do { } while (0)								unsigned long get_wchan(struct task_struct *p);								#define THREAD_SIZE	(8192)								extern struct task_struct *alloc_task_struct(void);				extern void __free_task_struct(struct task_struct *);				#define get_task_struct(p)	atomic_inc(&(p)->thread.refcount)				#define free_task_struct(p)					\				 do {								\					if (atomic_dec_and_test(&(p)->thread.refcount))		\						__free_task_struct((p));			\				 } while (0)								#define init_task	(init_task_union.task)				#define init_stack	(init_task_union.stack)								#define cpu_relax()	barrier()								/*				 * Create a new kernel thread				 */				extern int arch_kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);								#endif								#endif /* __ASM_ARM_PROCESSOR_H */