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authorTony Luck <tony.luck@intel.com>2008-08-01 13:13:32 -0400
committerTony Luck <tony.luck@intel.com>2008-08-01 13:21:21 -0400
commit7f30491ccd28627742e37899453ae20e3da8e18f (patch)
tree7291c0a26ed3a31acf9542857af3981d278f5de8 /include/asm-ia64/thread_info.h
parent94ad374a0751f40d25e22e036c37f7263569d24c (diff)
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/thread_info.h')
-rw-r--r--include/asm-ia64/thread_info.h148
1 files changed, 0 insertions, 148 deletions
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
deleted file mode 100644
index 7c60fcdd2efd..000000000000
--- a/include/asm-ia64/thread_info.h
+++ /dev/null
@@ -1,148 +0,0 @@
1/*
2 * Copyright (C) 2002-2003 Hewlett-Packard Co
3 * David Mosberger-Tang <davidm@hpl.hp.com>
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 * On IA-64, we want to keep the task structure and kernel stack together, so they can be
21 * mapped by a single TLB entry and so they can be addressed by the "current" pointer
22 * without having to do pointer masking.
23 */
24struct thread_info {
25 struct task_struct *task; /* XXX not really needed, except for dup_task_struct() */
26 struct exec_domain *exec_domain;/* execution domain */
27 __u32 flags; /* thread_info flags (see TIF_*) */
28 __u32 cpu; /* current CPU */
29 __u32 last_cpu; /* Last CPU thread ran on */
30 __u32 status; /* Thread synchronous flags */
31 mm_segment_t addr_limit; /* user-level address space limit */
32 int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
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 = 0, \
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/* how to get the thread information struct from C */
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) /* nothing */
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#define tsk_set_notify_resume(tsk) \
91 set_ti_thread_flag(task_thread_info(tsk), TIF_NOTIFY_RESUME)
92extern void tsk_clear_notify_resume(struct task_struct *tsk);
93#endif /* !__ASSEMBLY */
94
95/*
96 * thread information flags
97 * - these are process state flags that various assembly files may need to access
98 * - pending work-to-be-done flags are in least-significant 16 bits, other flags
99 * in top 16 bits
100 */
101#define TIF_SIGPENDING 0 /* signal pending */
102#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
103#define TIF_SYSCALL_TRACE 2 /* syscall trace active */
104#define TIF_SYSCALL_AUDIT 3 /* syscall auditing active */
105#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */
106#define TIF_NOTIFY_RESUME 6 /* resumption notification requested */
107#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
108#define TIF_MEMDIE 17
109#define TIF_MCA_INIT 18 /* this task is processing MCA or INIT */
110#define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */
111#define TIF_FREEZE 20 /* is freezing for suspend */
112#define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */
113
114#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
115#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
116#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
117#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
118#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
119#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
120#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
121#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
122#define _TIF_MCA_INIT (1 << TIF_MCA_INIT)
123#define _TIF_DB_DISABLED (1 << TIF_DB_DISABLED)
124#define _TIF_FREEZE (1 << TIF_FREEZE)
125#define _TIF_RESTORE_RSE (1 << TIF_RESTORE_RSE)
126
127/* "work to do on user-return" bits */
128#define TIF_ALLWORK_MASK (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SYSCALL_AUDIT|\
129 _TIF_NEED_RESCHED|_TIF_SYSCALL_TRACE)
130/* like TIF_ALLWORK_BITS but sans TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT */
131#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
132
133#define TS_POLLING 1 /* true if in idle loop and not sleeping */
134#define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */
135
136#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
137
138#ifndef __ASSEMBLY__
139#define HAVE_SET_RESTORE_SIGMASK 1
140static inline void set_restore_sigmask(void)
141{
142 struct thread_info *ti = current_thread_info();
143 ti->status |= TS_RESTORE_SIGMASK;
144 set_bit(TIF_SIGPENDING, &ti->flags);
145}
146#endif /* !__ASSEMBLY__ */
147
148#endif /* _ASM_IA64_THREAD_INFO_H */
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