2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
6 #ifndef __UM_PROCESSOR_GENERIC_H
7 #define __UM_PROCESSOR_GENERIC_H
13 #include <asm/ptrace.h>
14 #include <registers.h>
15 #include <sysdep/archsetjmp.h>
17 #include <linux/prefetch.h>
21 struct thread_struct
{
23 struct pt_regs
*segv_regs
;
24 int singlestep_syscall
;
26 jmp_buf *fault_catcher
;
27 struct task_struct
*prev_sched
;
28 struct arch_thread arch
;
53 .arch = INIT_ARCH_THREAD, \
57 static inline void release_thread(struct task_struct
*task
)
61 #define init_stack (init_thread_union.stack)
64 * User space process size: 3GB (default).
66 extern unsigned long task_size
;
68 #define TASK_SIZE (task_size)
73 extern unsigned long stacksizelim
;
75 #define STACK_ROOM (stacksizelim)
76 #define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE)
77 #define STACK_TOP_MAX STACK_TOP
79 /* This decides where the kernel will search for a free chunk of vm
80 * space during mmap's.
82 #define TASK_UNMAPPED_BASE (0x40000000)
84 extern void start_thread(struct pt_regs
*regs
, unsigned long entry
,
88 unsigned long loops_per_jiffy
;
92 extern struct cpuinfo_um boot_cpu_data
;
94 #define cpu_data (&boot_cpu_data)
95 #define current_cpu_data boot_cpu_data
97 #define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf)
98 extern unsigned long get_wchan(struct task_struct
*p
);