/* * Copyright (C) 2004-2006 Atmel Corporation * * 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_AVR32_PROCESSOR_H#define __ASM_AVR32_PROCESSOR_H #include <asm/page.h>#include <asm/cache.h> #define TASK_SIZE	0x80000000 #ifndef __ASSEMBLY__ static inline void *current_text_addr(void){	register void *pc asm("pc");	return pc;} enum arch_type {	ARCH_AVR32A,	ARCH_AVR32B,	ARCH_MAX}; enum cpu_type {	CPU_MORGAN,	CPU_AT32AP,	CPU_MAX}; enum tlb_config {	TLB_NONE,	TLB_SPLIT,	TLB_UNIFIED,	TLB_INVALID}; struct avr32_cpuinfo {	struct clk *clk;	unsigned long loops_per_jiffy;	enum arch_type arch_type;	enum cpu_type cpu_type;	unsigned short arch_revision;	unsigned short cpu_revision;	enum tlb_config tlb_config; 	struct cache_info icache;	struct cache_info dcache;}; extern struct avr32_cpuinfo boot_cpu_data; #ifdef CONFIG_SMPextern struct avr32_cpuinfo cpu_data[];#define current_cpu_data cpu_data[smp_processor_id()]#else#define cpu_data (&boot_cpu_data)#define current_cpu_data boot_cpu_data#endif /* This decides where the kernel will search for a free chunk of vm * space during mmap's */#define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3)) #define cpu_relax()		barrier()#define cpu_sync_pipeline()	asm volatile("sub pc, -2" : : : "memory") struct cpu_context {	unsigned long sr;	unsigned long pc;	unsigned long ksp;	/* Kernel stack pointer */	unsigned long r7;	unsigned long r6;	unsigned long r5;	unsigned long r4;	unsigned long r3;	unsigned long r2;	unsigned long r1;	unsigned long r0;}; /* This struct contains the CPU context as stored by switch_to() */struct thread_struct {	struct cpu_context cpu_context;	unsigned long single_step_addr;	u16 single_step_insn;}; #define INIT_THREAD {						\	.cpu_context = {					\		.ksp = sizeof(init_stack) + (long)&init_stack,	\	},							\} /* * Do necessary setup to start up a newly executed thread. */#define start_thread(regs, new_pc, new_sp)	 \	do {					 \		set_fs(USER_DS);		 \		memset(regs, 0, sizeof(*regs));	 \		regs->sr = MODE_USER;		 \		regs->pc = new_pc & ~1;		 \		regs->sp = new_sp;		 \	} while(0) struct task_struct; /* Free all resources held by a thread */extern void release_thread(struct task_struct *); /* Create a kernel thread without removing it from tasklists */extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); /* Prepare to copy thread state - unlazy all lazy status */#define prepare_to_copy(tsk) do { } while(0) /* Return saved PC of a blocked thread */#define thread_saved_pc(tsk)    ((tsk)->thread.cpu_context.pc) struct pt_regs;void show_trace(struct task_struct *task, unsigned long *stack,		struct pt_regs *regs); extern unsigned long get_wchan(struct task_struct *p); #define KSTK_EIP(tsk)	((tsk)->thread.cpu_context.pc)#define KSTK_ESP(tsk)	((tsk)->thread.cpu_context.ksp) #define ARCH_HAS_PREFETCH static inline void prefetch(const void *x){	const char *c = x;	asm volatile("pref %0" : : "r"(c));}#define PREFETCH_STRIDE	L1_CACHE_BYTES #endif /* __ASSEMBLY__ */ #endif /* __ASM_AVR32_PROCESSOR_H */