diff options
Diffstat (limited to 'include/asm-arm26/processor.h')
-rw-r--r-- | include/asm-arm26/processor.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/asm-arm26/processor.h b/include/asm-arm26/processor.h new file mode 100644 index 000000000000..1d2d5f7b467b --- /dev/null +++ b/include/asm-arm26/processor.h | |||
@@ -0,0 +1,113 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm26/processor.h | ||
3 | * | ||
4 | * Copyright (C) 1995 Russell King | ||
5 | * Copyright (C) 2003 Ian Molton | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License version 2 as | ||
9 | * published by the Free Software Foundation. | ||
10 | */ | ||
11 | |||
12 | #ifndef __ASM_ARM_PROCESSOR_H | ||
13 | #define __ASM_ARM_PROCESSOR_H | ||
14 | |||
15 | /* | ||
16 | * Default implementation of macro that returns current | ||
17 | * instruction pointer ("program counter"). | ||
18 | */ | ||
19 | #define current_text_addr() ({ __label__ _l; _l: &&_l;}) | ||
20 | |||
21 | #ifdef __KERNEL__ | ||
22 | |||
23 | #include <asm/atomic.h> | ||
24 | #include <asm/ptrace.h> | ||
25 | #include <linux/string.h> | ||
26 | |||
27 | #define KERNEL_STACK_SIZE 4096 | ||
28 | |||
29 | typedef struct { | ||
30 | void (*put_byte)(void); /* Special calling convention */ | ||
31 | void (*get_byte)(void); /* Special calling convention */ | ||
32 | void (*put_half)(void); /* Special calling convention */ | ||
33 | void (*get_half)(void); /* Special calling convention */ | ||
34 | void (*put_word)(void); /* Special calling convention */ | ||
35 | void (*get_word)(void); /* Special calling convention */ | ||
36 | void (*put_dword)(void); /* Special calling convention */ | ||
37 | unsigned long (*copy_from_user)(void *to, const void *from, unsigned long sz); | ||
38 | unsigned long (*copy_to_user)(void *to, const void *from, unsigned long sz); | ||
39 | unsigned long (*clear_user)(void *addr, unsigned long sz); | ||
40 | unsigned long (*strncpy_from_user)(char *to, const char *from, unsigned long sz); | ||
41 | unsigned long (*strnlen_user)(const char *s, long n); | ||
42 | } uaccess_t; | ||
43 | |||
44 | extern uaccess_t uaccess_user, uaccess_kernel; | ||
45 | |||
46 | #define EXTRA_THREAD_STRUCT \ | ||
47 | uaccess_t *uaccess; /* User access functions*/ | ||
48 | |||
49 | #define EXTRA_THREAD_STRUCT_INIT \ | ||
50 | .uaccess = &uaccess_kernel, | ||
51 | |||
52 | // FIXME?!! | ||
53 | |||
54 | #define start_thread(regs,pc,sp) \ | ||
55 | ({ \ | ||
56 | unsigned long *stack = (unsigned long *)sp; \ | ||
57 | set_fs(USER_DS); \ | ||
58 | memzero(regs->uregs, sizeof (regs->uregs)); \ | ||
59 | regs->ARM_pc = pc | ~0xfc000003; /* pc */ \ | ||
60 | regs->ARM_sp = sp; /* sp */ \ | ||
61 | regs->ARM_r2 = stack[2]; /* r2 (envp) */ \ | ||
62 | regs->ARM_r1 = stack[1]; /* r1 (argv) */ \ | ||
63 | regs->ARM_r0 = stack[0]; /* r0 (argc) */ \ | ||
64 | }) | ||
65 | |||
66 | #define KSTK_EIP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1020]) | ||
67 | #define KSTK_ESP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1018]) | ||
68 | |||
69 | struct debug_entry { | ||
70 | u32 address; | ||
71 | u32 insn; | ||
72 | }; | ||
73 | |||
74 | struct debug_info { | ||
75 | int nsaved; | ||
76 | struct debug_entry bp[2]; | ||
77 | }; | ||
78 | |||
79 | struct thread_struct { | ||
80 | /* fault info */ | ||
81 | unsigned long address; | ||
82 | unsigned long trap_no; | ||
83 | unsigned long error_code; | ||
84 | /* debugging */ | ||
85 | struct debug_info debug; | ||
86 | EXTRA_THREAD_STRUCT | ||
87 | }; | ||
88 | |||
89 | #define INIT_THREAD { \ | ||
90 | EXTRA_THREAD_STRUCT_INIT \ | ||
91 | } | ||
92 | |||
93 | /* Forward declaration, a strange C thing */ | ||
94 | struct task_struct; | ||
95 | |||
96 | /* Free all resources held by a thread. */ | ||
97 | extern void release_thread(struct task_struct *); | ||
98 | |||
99 | unsigned long get_wchan(struct task_struct *p); | ||
100 | |||
101 | #define cpu_relax() barrier() | ||
102 | |||
103 | /* Prepare to copy thread state - unlazy all lazy status */ | ||
104 | #define prepare_to_copy(tsk) do { } while (0) | ||
105 | |||
106 | /* | ||
107 | * Create a new kernel thread | ||
108 | */ | ||
109 | extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); | ||
110 | |||
111 | #endif | ||
112 | |||
113 | #endif /* __ASM_ARM_PROCESSOR_H */ | ||