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/*
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __UM_PROCESSOR_GENERIC_H
#define __UM_PROCESSOR_GENERIC_H
struct pt_regs;
struct task_struct;
#include <asm/ptrace.h>
#include <registers.h>
#include <sysdep/archsetjmp.h>
#include <linux/prefetch.h>
struct mm_struct;
struct thread_struct {
struct pt_regs regs;
struct pt_regs *segv_regs;
int singlestep_syscall;
void *fault_addr;
jmp_buf *fault_catcher;
struct task_struct *prev_sched;
unsigned long temp_stack;
struct arch_thread arch;
jmp_buf switch_buf;
int mm_count;
struct {
int op;
union {
struct {
int pid;
} fork, exec;
struct {
int (*proc)(void *);
void *arg;
} thread;
struct {
void (*proc)(void *);
void *arg;
} cb;
} u;
} request;
};
#define INIT_THREAD \
{ \
.regs = EMPTY_REGS, \
.fault_addr = NULL, \
.prev_sched = NULL, \
.temp_stack = 0, \
.arch = INIT_ARCH_THREAD, \
.request = { 0 } \
}
static inline void release_thread(struct task_struct *task)
{
}
extern unsigned long thread_saved_pc(struct task_struct *t);
static inline void mm_copy_segments(struct mm_struct *from_mm,
struct mm_struct *new_mm)
{
}
#define init_stack (init_thread_union.stack)
/*
* User space process size: 3GB (default).
*/
extern unsigned long task_size;
#define TASK_SIZE (task_size)
#undef STACK_TOP
#undef STACK_TOP_MAX
extern unsigned long stacksizelim;
#define STACK_ROOM (stacksizelim)
#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
#define STACK_TOP_MAX STACK_TOP
/* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
*/
#define TASK_UNMAPPED_BASE (0x40000000)
extern void start_thread(struct pt_regs *regs, unsigned long entry,
unsigned long stack);
struct cpuinfo_um {
unsigned long loops_per_jiffy;
int ipi_pipe[2];
};
extern struct cpuinfo_um boot_cpu_data;
#define my_cpu_data cpu_data[smp_processor_id()]
#ifdef CONFIG_SMP
extern struct cpuinfo_um 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
#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf)
extern unsigned long get_wchan(struct task_struct *p);
#endif