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-rw-r--r--include/asm-sh/thread_info.h141
1 files changed, 0 insertions, 141 deletions
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
deleted file mode 100644
index eeb4c747119e..000000000000
--- a/include/asm-sh/thread_info.h
+++ /dev/null
@@ -1,141 +0,0 @@
1#ifndef __ASM_SH_THREAD_INFO_H
2#define __ASM_SH_THREAD_INFO_H
3
4/* SuperH version
5 * Copyright (C) 2002 Niibe Yutaka
6 *
7 * The copyright of original i386 version is:
8 *
9 * Copyright (C) 2002 David Howells (dhowells@redhat.com)
10 * - Incorporating suggestions made by Linus Torvalds and Dave Miller
11 */
12#ifdef __KERNEL__
13#include <asm/page.h>
14
15#ifndef __ASSEMBLY__
16#include <asm/processor.h>
17
18struct thread_info {
19 struct task_struct *task; /* main task structure */
20 struct exec_domain *exec_domain; /* execution domain */
21 unsigned long flags; /* low level flags */
22 __u32 cpu;
23 int preempt_count; /* 0 => preemptable, <0 => BUG */
24 mm_segment_t addr_limit; /* thread address space */
25 struct restart_block restart_block;
26 unsigned long previous_sp; /* sp of previous stack in case
27 of nested IRQ stacks */
28 __u8 supervisor_stack[0];
29};
30
31#endif
32
33#define PREEMPT_ACTIVE 0x10000000
34
35#if defined(CONFIG_4KSTACKS)
36#define THREAD_SIZE_ORDER (0)
37#elif defined(CONFIG_PAGE_SIZE_4KB)
38#define THREAD_SIZE_ORDER (1)
39#elif defined(CONFIG_PAGE_SIZE_8KB)
40#define THREAD_SIZE_ORDER (1)
41#elif defined(CONFIG_PAGE_SIZE_16KB)
42#define THREAD_SIZE_ORDER (0)
43#elif defined(CONFIG_PAGE_SIZE_64KB)
44#define THREAD_SIZE_ORDER (0)
45#else
46#error "Unknown thread size"
47#endif
48
49#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
50#define STACK_WARN (THREAD_SIZE >> 3)
51
52/*
53 * macros/functions for gaining access to the thread information structure
54 */
55#ifndef __ASSEMBLY__
56#define INIT_THREAD_INFO(tsk) \
57{ \
58 .task = &tsk, \
59 .exec_domain = &default_exec_domain, \
60 .flags = 0, \
61 .cpu = 0, \
62 .preempt_count = 1, \
63 .addr_limit = KERNEL_DS, \
64 .restart_block = { \
65 .fn = do_no_restart_syscall, \
66 }, \
67}
68
69#define init_thread_info (init_thread_union.thread_info)
70#define init_stack (init_thread_union.stack)
71
72/* how to get the current stack pointer from C */
73register unsigned long current_stack_pointer asm("r15") __used;
74
75/* how to get the thread information struct from C */
76static inline struct thread_info *current_thread_info(void)
77{
78 struct thread_info *ti;
79#if defined(CONFIG_SUPERH64)
80 __asm__ __volatile__ ("getcon cr17, %0" : "=r" (ti));
81#elif defined(CONFIG_CPU_HAS_SR_RB)
82 __asm__ __volatile__ ("stc r7_bank, %0" : "=r" (ti));
83#else
84 unsigned long __dummy;
85
86 __asm__ __volatile__ (
87 "mov r15, %0\n\t"
88 "and %1, %0\n\t"
89 : "=&r" (ti), "=r" (__dummy)
90 : "1" (~(THREAD_SIZE - 1))
91 : "memory");
92#endif
93
94 return ti;
95}
96
97#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
98
99/* thread information allocation */
100#ifdef CONFIG_DEBUG_STACK_USAGE
101#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL)
102#else
103#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL)
104#endif
105#define free_thread_info(ti) kfree(ti)
106
107#endif /* __ASSEMBLY__ */
108
109/*
110 * thread information flags
111 * - these are process state flags that various assembly files may need to access
112 * - pending work-to-be-done flags are in LSW
113 * - other flags in MSW
114 */
115#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
116#define TIF_SIGPENDING 1 /* signal pending */
117#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
118#define TIF_RESTORE_SIGMASK 3 /* restore signal mask in do_signal() */
119#define TIF_SINGLESTEP 4 /* singlestepping active */
120#define TIF_SYSCALL_AUDIT 5
121#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
122#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */
123#define TIF_MEMDIE 18
124#define TIF_FREEZE 19
125
126#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
127#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
128#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
129#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
130#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
131#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
132#define _TIF_USEDFPU (1<<TIF_USEDFPU)
133#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
134#define _TIF_FREEZE (1<<TIF_FREEZE)
135
136#define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */
137#define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */
138
139#endif /* __KERNEL__ */
140
141#endif /* __ASM_SH_THREAD_INFO_H */