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13#ifndef _ASM_THREAD_INFO_H
14#define _ASM_THREAD_INFO_H
15
16#ifdef __KERNEL__
17
18#ifndef __ASSEMBLY__
19#include <asm/processor.h>
20#endif
21
22#define THREAD_SIZE 8192
23
24
25
26
27
28
29
30#ifndef __ASSEMBLY__
31
32struct thread_info {
33 struct task_struct *task;
34 struct exec_domain *exec_domain;
35 unsigned long flags;
36 unsigned long status;
37 __u32 cpu;
38 int preempt_count;
39
40 mm_segment_t addr_limit;
41
42
43
44 struct restart_block restart_block;
45
46 __u8 supervisor_stack[0];
47};
48
49#else
50
51#include <asm/asm-offsets.h>
52
53#endif
54
55#define PREEMPT_ACTIVE 0x10000000
56
57
58
59
60#ifndef __ASSEMBLY__
61
62#define INIT_THREAD_INFO(tsk) \
63{ \
64 .task = &tsk, \
65 .exec_domain = &default_exec_domain, \
66 .flags = 0, \
67 .cpu = 0, \
68 .preempt_count = INIT_PREEMPT_COUNT, \
69 .addr_limit = KERNEL_DS, \
70 .restart_block = { \
71 .fn = do_no_restart_syscall, \
72 }, \
73}
74
75#define init_thread_info (init_thread_union.thread_info)
76#define init_stack (init_thread_union.stack)
77
78
79register struct thread_info *__current_thread_info asm("gr15");
80
81#define current_thread_info() ({ __current_thread_info; })
82
83#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
84
85
86#ifdef CONFIG_DEBUG_STACK_USAGE
87#define alloc_thread_info(tsk) \
88 ({ \
89 struct thread_info *ret; \
90 \
91 ret = kzalloc(THREAD_SIZE, GFP_KERNEL); \
92 \
93 ret; \
94 })
95#else
96#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
97#endif
98
99#define free_thread_info(info) kfree(info)
100
101#endif
102
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107
108
109#define TIF_SYSCALL_TRACE 0
110#define TIF_NOTIFY_RESUME 1
111#define TIF_SIGPENDING 2
112#define TIF_NEED_RESCHED 3
113#define TIF_SINGLESTEP 4
114#define TIF_RESTORE_SIGMASK 5
115#define TIF_POLLING_NRFLAG 16
116#define TIF_MEMDIE 17
117#define TIF_FREEZE 18
118
119#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
120#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
121#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
122#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
123#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
124#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
125#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
126#define _TIF_FREEZE (1 << TIF_FREEZE)
127
128#define _TIF_WORK_MASK 0x0000FFFE
129#define _TIF_ALLWORK_MASK 0x0000FFFF
130
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134
135
136
137
138#define TS_USEDFPM 0x0001
139
140#endif
141
142#endif
143