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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 17:38:14 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 17:40:31 -0400
commite3d2f927f788adcdabc42f8a1616f6cc56c53bbe (patch)
treeff051e33cff49e23f4c4ef84360f22cf7a1998c9 /arch/parisc/include/asm/thread_info.h
parenta9b6148d25f15ddfe9d7a7f3e526fdb64e7cf7da (diff)
parent81e192d6ce303b6792aa38ff35f41a1a7357f23a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: convert to generic compat_sys_ptrace parisc: add rtc platform driver parisc: initialize unwinder much earlier parisc: add new syscalls parisc: hijack jump to start_kernel parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked parisc: move include/asm-parisc to arch/parisc/include/asm parisc: move pdc_result to real2.S parisc: unify CCIO_COLLECT_STATS implementation parisc: add arch/parisc/kernel/.gitignore parisc: ropes.h - fix <asm-parisc/*> -> <asm/*> parisc: parisc-agp - fix <asm-parisc/*> -> <asm/*> Resolve remove/rename conflict: include/asm-parisc/a.out.h is no longer relevant.
Diffstat (limited to 'arch/parisc/include/asm/thread_info.h')
-rw-r--r--arch/parisc/include/asm/thread_info.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
new file mode 100644
index 000000000000..0407959da489
--- /dev/null
+++ b/arch/parisc/include/asm/thread_info.h
@@ -0,0 +1,76 @@
1#ifndef _ASM_PARISC_THREAD_INFO_H
2#define _ASM_PARISC_THREAD_INFO_H
3
4#ifdef __KERNEL__
5
6#ifndef __ASSEMBLY__
7#include <asm/processor.h>
8
9struct thread_info {
10 struct task_struct *task; /* main task structure */
11 struct exec_domain *exec_domain;/* execution domain */
12 unsigned long flags; /* thread_info flags (see TIF_*) */
13 mm_segment_t addr_limit; /* user-level address space limit */
14 __u32 cpu; /* current CPU */
15 int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
16 struct restart_block restart_block;
17};
18
19#define INIT_THREAD_INFO(tsk) \
20{ \
21 .task = &tsk, \
22 .exec_domain = &default_exec_domain, \
23 .flags = 0, \
24 .cpu = 0, \
25 .addr_limit = KERNEL_DS, \
26 .preempt_count = 1, \
27 .restart_block = { \
28 .fn = do_no_restart_syscall \
29 } \
30}
31
32#define init_thread_info (init_thread_union.thread_info)
33#define init_stack (init_thread_union.stack)
34
35/* thread information allocation */
36
37#define THREAD_SIZE_ORDER 2
38/* Be sure to hunt all references to this down when you change the size of
39 * the kernel stack */
40#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
41#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
42
43/* how to get the thread information struct from C */
44#define current_thread_info() ((struct thread_info *)mfctl(30))
45
46#endif /* !__ASSEMBLY */
47
48#define PREEMPT_ACTIVE_BIT 28
49#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT)
50
51/*
52 * thread information flags
53 */
54#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
55#define TIF_SIGPENDING 1 /* signal pending */
56#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
57#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
58#define TIF_32BIT 4 /* 32 bit binary */
59#define TIF_MEMDIE 5
60#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
61#define TIF_FREEZE 7 /* is freezing for suspend */
62
63#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
64#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
65#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
66#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
67#define _TIF_32BIT (1 << TIF_32BIT)
68#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
69#define _TIF_FREEZE (1 << TIF_FREEZE)
70
71#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \
72 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
73
74#endif /* __KERNEL__ */
75
76#endif /* _ASM_PARISC_THREAD_INFO_H */