1
2
3
4
5#ifndef _ASM_IA64_THREAD_INFO_H
6#define _ASM_IA64_THREAD_INFO_H
7
8#ifndef ASM_OFFSETS_C
9#include <asm/asm-offsets.h>
10#endif
11#include <asm/processor.h>
12#include <asm/ptrace.h>
13
14#define PREEMPT_ACTIVE_BIT 30
15#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT)
16
17#ifndef __ASSEMBLY__
18
19
20
21
22
23
24struct thread_info {
25 struct task_struct *task;
26 struct exec_domain *exec_domain;
27 __u32 flags;
28 __u32 cpu;
29 __u32 last_cpu;
30 __u32 status;
31 mm_segment_t addr_limit;
32 int preempt_count;
33 struct restart_block restart_block;
34#ifdef CONFIG_VIRT_CPU_ACCOUNTING
35 __u64 ac_stamp;
36 __u64 ac_leave;
37 __u64 ac_stime;
38 __u64 ac_utime;
39#endif
40};
41
42#define THREAD_SIZE KERNEL_STACK_SIZE
43
44#define INIT_THREAD_INFO(tsk) \
45{ \
46 .task = &tsk, \
47 .exec_domain = &default_exec_domain, \
48 .flags = 0, \
49 .cpu = 0, \
50 .addr_limit = KERNEL_DS, \
51 .preempt_count = INIT_PREEMPT_COUNT, \
52 .restart_block = { \
53 .fn = do_no_restart_syscall, \
54 }, \
55}
56
57#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
58
59#ifndef ASM_OFFSETS_C
60
61#define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE))
62#define alloc_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE))
63#define task_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE))
64#else
65#define current_thread_info() ((struct thread_info *) 0)
66#define alloc_thread_info(tsk) ((struct thread_info *) 0)
67#define task_thread_info(tsk) ((struct thread_info *) 0)
68#endif
69#define free_thread_info(ti)
70#define task_stack_page(tsk) ((void *)(tsk))
71
72#define __HAVE_THREAD_FUNCTIONS
73#ifdef CONFIG_VIRT_CPU_ACCOUNTING
74#define setup_thread_stack(p, org) \
75 *task_thread_info(p) = *task_thread_info(org); \
76 task_thread_info(p)->ac_stime = 0; \
77 task_thread_info(p)->ac_utime = 0; \
78 task_thread_info(p)->task = (p);
79#else
80#define setup_thread_stack(p, org) \
81 *task_thread_info(p) = *task_thread_info(org); \
82 task_thread_info(p)->task = (p);
83#endif
84#define end_of_stack(p) (unsigned long *)((void *)(p) + IA64_RBS_OFFSET)
85
86#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
87#define alloc_task_struct() ((struct task_struct *)__get_free_pages(GFP_KERNEL | __GFP_COMP, KERNEL_STACK_SIZE_ORDER))
88#define free_task_struct(tsk) free_pages((unsigned long) (tsk), KERNEL_STACK_SIZE_ORDER)
89
90#endif
91
92
93
94
95
96
97
98#define TIF_SIGPENDING 0
99#define TIF_NEED_RESCHED 1
100#define TIF_SYSCALL_TRACE 2
101#define TIF_SYSCALL_AUDIT 3
102#define TIF_SINGLESTEP 4
103#define TIF_NOTIFY_RESUME 6
104#define TIF_POLLING_NRFLAG 16
105#define TIF_MEMDIE 17
106#define TIF_MCA_INIT 18
107#define TIF_DB_DISABLED 19
108#define TIF_FREEZE 20
109#define TIF_RESTORE_RSE 21
110
111#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
112#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
113#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
114#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
115#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
116#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
117#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
118#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
119#define _TIF_MCA_INIT (1 << TIF_MCA_INIT)
120#define _TIF_DB_DISABLED (1 << TIF_DB_DISABLED)
121#define _TIF_FREEZE (1 << TIF_FREEZE)
122#define _TIF_RESTORE_RSE (1 << TIF_RESTORE_RSE)
123
124
125#define TIF_ALLWORK_MASK (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SYSCALL_AUDIT|\
126 _TIF_NEED_RESCHED|_TIF_SYSCALL_TRACE)
127
128#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
129
130#define TS_POLLING 1
131#define TS_RESTORE_SIGMASK 2
132
133#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
134
135#ifndef __ASSEMBLY__
136#define HAVE_SET_RESTORE_SIGMASK 1
137static inline void set_restore_sigmask(void)
138{
139 struct thread_info *ti = current_thread_info();
140 ti->status |= TS_RESTORE_SIGMASK;
141 set_bit(TIF_SIGPENDING, &ti->flags);
142}
143#endif
144
145#endif
146