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11#ifndef _ASM_THREAD_INFO_H
12#define _ASM_THREAD_INFO_H
13
14#ifdef __KERNEL__
15
16#ifndef __ASSEMBLY__
17
18#include <asm/btfixup.h>
19#include <asm/ptrace.h>
20#include <asm/page.h>
21
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24
25
26
27#define NSWINS 8
28struct thread_info {
29 unsigned long uwinmask;
30 struct task_struct *task;
31 struct exec_domain *exec_domain;
32 unsigned long flags;
33 int cpu;
34 int preempt_count;
35
36 int softirq_count;
37 int hardirq_count;
38
39
40 unsigned long ksp;
41 unsigned long kpc;
42 unsigned long kpsr;
43 unsigned long kwim;
44
45
46
47
48 struct reg_window32 reg_window[NSWINS];
49 unsigned long rwbuf_stkptrs[NSWINS];
50 unsigned long w_saved;
51
52 struct restart_block restart_block;
53};
54
55
56
57
58#define INIT_THREAD_INFO(tsk) \
59{ \
60 .uwinmask = 0, \
61 .task = &tsk, \
62 .exec_domain = &default_exec_domain, \
63 .flags = 0, \
64 .cpu = 0, \
65 .preempt_count = INIT_PREEMPT_COUNT, \
66 .restart_block = { \
67 .fn = do_no_restart_syscall, \
68 }, \
69}
70
71#define init_thread_info (init_thread_union.thread_info)
72#define init_stack (init_thread_union.stack)
73
74
75register struct thread_info *current_thread_info_reg asm("g6");
76#define current_thread_info() (current_thread_info_reg)
77
78
79
80
81#define THREAD_INFO_ORDER 1
82
83#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
84
85BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info, void)
86#define alloc_thread_info(tsk) BTFIXUP_CALL(alloc_thread_info)()
87
88BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
89#define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti)
90
91#endif
92
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96
97
98#define THREAD_SIZE 8192
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103
104#define TI_UWINMASK 0x00
105#define TI_TASK 0x04
106#define TI_EXECDOMAIN 0x08
107#define TI_FLAGS 0x0c
108#define TI_CPU 0x10
109#define TI_PREEMPT 0x14
110#define TI_SOFTIRQ 0x18
111#define TI_HARDIRQ 0x1c
112#define TI_KSP 0x20
113#define TI_KPC 0x24
114#define TI_KPSR 0x28
115#define TI_KWIM 0x2c
116#define TI_REG_WINDOW 0x30
117#define TI_RWIN_SPTRS 0x230
118#define TI_W_SAVED 0x250
119
120
121#define PREEMPT_ACTIVE 0x4000000
122
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124
125
126#define TIF_SYSCALL_TRACE 0
127#define TIF_NOTIFY_RESUME 1
128#define TIF_SIGPENDING 2
129#define TIF_NEED_RESCHED 3
130#define TIF_RESTORE_SIGMASK 4
131#define TIF_USEDFPU 8
132
133#define TIF_POLLING_NRFLAG 9
134
135#define TIF_MEMDIE 10
136#define TIF_FREEZE 11
137
138
139#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
140#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
141#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
142#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
143#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
144#define _TIF_USEDFPU (1<<TIF_USEDFPU)
145#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
146
147#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \
148 _TIF_SIGPENDING | \
149 _TIF_RESTORE_SIGMASK)
150#define _TIF_FREEZE (1<<TIF_FREEZE)
151
152#endif
153
154#endif
155