Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
ba180fd4 | 2 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
1da177e4 LT |
3 | * Licensed under the GPL |
4 | */ | |
5 | ||
6 | #ifndef __UM_PROCESSOR_GENERIC_H | |
7 | #define __UM_PROCESSOR_GENERIC_H | |
8 | ||
9 | struct pt_regs; | |
10 | ||
11 | struct task_struct; | |
12 | ||
37185b33 AV |
13 | #include <asm/ptrace.h> |
14 | #include <registers.h> | |
15 | #include <sysdep/archsetjmp.h> | |
1da177e4 | 16 | |
607647ab RW |
17 | #include <linux/prefetch.h> |
18 | ||
1da177e4 LT |
19 | struct mm_struct; |
20 | ||
21 | struct thread_struct { | |
1da177e4 | 22 | struct pt_regs regs; |
f72c22e4 | 23 | struct pt_regs *segv_regs; |
1da177e4 LT |
24 | int singlestep_syscall; |
25 | void *fault_addr; | |
fab95c55 | 26 | jmp_buf *fault_catcher; |
1da177e4 | 27 | struct task_struct *prev_sched; |
1da177e4 | 28 | struct arch_thread arch; |
77bf4400 | 29 | jmp_buf switch_buf; |
1da177e4 LT |
30 | struct { |
31 | int op; | |
32 | union { | |
33 | struct { | |
34 | int pid; | |
35 | } fork, exec; | |
36 | struct { | |
37 | int (*proc)(void *); | |
38 | void *arg; | |
39 | } thread; | |
40 | struct { | |
41 | void (*proc)(void *); | |
42 | void *arg; | |
43 | } cb; | |
44 | } u; | |
45 | } request; | |
46 | }; | |
47 | ||
48 | #define INIT_THREAD \ | |
49 | { \ | |
ba180fd4 | 50 | .regs = EMPTY_REGS, \ |
1da177e4 LT |
51 | .fault_addr = NULL, \ |
52 | .prev_sched = NULL, \ | |
1da177e4 LT |
53 | .arch = INIT_ARCH_THREAD, \ |
54 | .request = { 0 } \ | |
55 | } | |
56 | ||
77bf4400 JD |
57 | static inline void release_thread(struct task_struct *task) |
58 | { | |
59 | } | |
60 | ||
1da177e4 LT |
61 | #define init_stack (init_thread_union.stack) |
62 | ||
63 | /* | |
64 | * User space process size: 3GB (default). | |
65 | */ | |
536788fe JD |
66 | extern unsigned long task_size; |
67 | ||
68 | #define TASK_SIZE (task_size) | |
1da177e4 | 69 | |
922a70d3 DH |
70 | #undef STACK_TOP |
71 | #undef STACK_TOP_MAX | |
72 | ||
73 | extern unsigned long stacksizelim; | |
74 | ||
75 | #define STACK_ROOM (stacksizelim) | |
76 | #define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE) | |
77 | #define STACK_TOP_MAX STACK_TOP | |
78 | ||
1da177e4 LT |
79 | /* This decides where the kernel will search for a free chunk of vm |
80 | * space during mmap's. | |
81 | */ | |
82 | #define TASK_UNMAPPED_BASE (0x40000000) | |
83 | ||
84 | extern void start_thread(struct pt_regs *regs, unsigned long entry, | |
85 | unsigned long stack); | |
86 | ||
87 | struct cpuinfo_um { | |
88 | unsigned long loops_per_jiffy; | |
89 | int ipi_pipe[2]; | |
90 | }; | |
91 | ||
92 | extern struct cpuinfo_um boot_cpu_data; | |
93 | ||
1da177e4 LT |
94 | #define cpu_data (&boot_cpu_data) |
95 | #define current_cpu_data boot_cpu_data | |
1da177e4 | 96 | |
77bf4400 | 97 | #define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) |
c1127465 | 98 | extern unsigned long get_wchan(struct task_struct *p); |
1da177e4 | 99 | |
fad1c45c | 100 | #endif |