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Diffstat (limited to 'include/asm-sh/thread_info.h')
-rw-r--r-- | include/asm-sh/thread_info.h | 141 |
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 | |||
18 | struct 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 */ | ||
73 | register unsigned long current_stack_pointer asm("r15") __used; | ||
74 | |||
75 | /* how to get the thread information struct from C */ | ||
76 | static 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 */ | ||