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Diffstat (limited to 'include/asm-h8300/processor.h')
-rw-r--r-- | include/asm-h8300/processor.h | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/include/asm-h8300/processor.h b/include/asm-h8300/processor.h deleted file mode 100644 index 69e8a34eb6d5..000000000000 --- a/include/asm-h8300/processor.h +++ /dev/null | |||
@@ -1,140 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-h8300/processor.h | ||
3 | * | ||
4 | * Copyright (C) 2002 Yoshinori Sato | ||
5 | * | ||
6 | * Based on: linux/asm-m68nommu/processor.h | ||
7 | * | ||
8 | * Copyright (C) 1995 Hamish Macdonald | ||
9 | */ | ||
10 | |||
11 | #ifndef __ASM_H8300_PROCESSOR_H | ||
12 | #define __ASM_H8300_PROCESSOR_H | ||
13 | |||
14 | /* | ||
15 | * Default implementation of macro that returns current | ||
16 | * instruction pointer ("program counter"). | ||
17 | */ | ||
18 | #define current_text_addr() ({ __label__ _l; _l: &&_l;}) | ||
19 | |||
20 | #include <linux/compiler.h> | ||
21 | #include <asm/segment.h> | ||
22 | #include <asm/fpu.h> | ||
23 | #include <asm/ptrace.h> | ||
24 | #include <asm/current.h> | ||
25 | |||
26 | static inline unsigned long rdusp(void) { | ||
27 | extern unsigned int sw_usp; | ||
28 | return(sw_usp); | ||
29 | } | ||
30 | |||
31 | static inline void wrusp(unsigned long usp) { | ||
32 | extern unsigned int sw_usp; | ||
33 | sw_usp = usp; | ||
34 | } | ||
35 | |||
36 | /* | ||
37 | * User space process size: 3.75GB. This is hardcoded into a few places, | ||
38 | * so don't change it unless you know what you are doing. | ||
39 | */ | ||
40 | #define TASK_SIZE (0xFFFFFFFFUL) | ||
41 | |||
42 | #ifdef __KERNEL__ | ||
43 | #define STACK_TOP TASK_SIZE | ||
44 | #define STACK_TOP_MAX STACK_TOP | ||
45 | #endif | ||
46 | |||
47 | /* | ||
48 | * This decides where the kernel will search for a free chunk of vm | ||
49 | * space during mmap's. We won't be using it | ||
50 | */ | ||
51 | #define TASK_UNMAPPED_BASE 0 | ||
52 | |||
53 | struct thread_struct { | ||
54 | unsigned long ksp; /* kernel stack pointer */ | ||
55 | unsigned long usp; /* user stack pointer */ | ||
56 | unsigned long ccr; /* saved status register */ | ||
57 | unsigned long esp0; /* points to SR of stack frame */ | ||
58 | struct { | ||
59 | unsigned short *addr; | ||
60 | unsigned short inst; | ||
61 | } breakinfo; | ||
62 | }; | ||
63 | |||
64 | #define INIT_THREAD { \ | ||
65 | .ksp = sizeof(init_stack) + (unsigned long)init_stack, \ | ||
66 | .usp = 0, \ | ||
67 | .ccr = PS_S, \ | ||
68 | .esp0 = 0, \ | ||
69 | .breakinfo = { \ | ||
70 | .addr = (unsigned short *)-1, \ | ||
71 | .inst = 0 \ | ||
72 | } \ | ||
73 | } | ||
74 | |||
75 | /* | ||
76 | * Do necessary setup to start up a newly executed thread. | ||
77 | * | ||
78 | * pass the data segment into user programs if it exists, | ||
79 | * it can't hurt anything as far as I can tell | ||
80 | */ | ||
81 | #if defined(__H8300H__) | ||
82 | #define start_thread(_regs, _pc, _usp) \ | ||
83 | do { \ | ||
84 | set_fs(USER_DS); /* reads from user space */ \ | ||
85 | (_regs)->pc = (_pc); \ | ||
86 | (_regs)->ccr = 0x00; /* clear all flags */ \ | ||
87 | (_regs)->er5 = current->mm->start_data; /* GOT base */ \ | ||
88 | wrusp((unsigned long)(_usp) - sizeof(unsigned long)*3); \ | ||
89 | } while(0) | ||
90 | #endif | ||
91 | #if defined(__H8300S__) | ||
92 | #define start_thread(_regs, _pc, _usp) \ | ||
93 | do { \ | ||
94 | set_fs(USER_DS); /* reads from user space */ \ | ||
95 | (_regs)->pc = (_pc); \ | ||
96 | (_regs)->ccr = 0x00; /* clear kernel flag */ \ | ||
97 | (_regs)->exr = 0x78; /* enable all interrupts */ \ | ||
98 | (_regs)->er5 = current->mm->start_data; /* GOT base */ \ | ||
99 | /* 14 = space for retaddr(4), vector(4), er0(4) and ext(2) on stack */ \ | ||
100 | wrusp(((unsigned long)(_usp)) - 14); \ | ||
101 | } while(0) | ||
102 | #endif | ||
103 | |||
104 | /* Forward declaration, a strange C thing */ | ||
105 | struct task_struct; | ||
106 | |||
107 | /* Free all resources held by a thread. */ | ||
108 | static inline void release_thread(struct task_struct *dead_task) | ||
109 | { | ||
110 | } | ||
111 | |||
112 | extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); | ||
113 | |||
114 | #define prepare_to_copy(tsk) do { } while (0) | ||
115 | |||
116 | /* | ||
117 | * Free current thread data structures etc.. | ||
118 | */ | ||
119 | static inline void exit_thread(void) | ||
120 | { | ||
121 | } | ||
122 | |||
123 | /* | ||
124 | * Return saved PC of a blocked thread. | ||
125 | */ | ||
126 | unsigned long thread_saved_pc(struct task_struct *tsk); | ||
127 | unsigned long get_wchan(struct task_struct *p); | ||
128 | |||
129 | #define KSTK_EIP(tsk) \ | ||
130 | ({ \ | ||
131 | unsigned long eip = 0; \ | ||
132 | if ((tsk)->thread.esp0 > PAGE_SIZE && \ | ||
133 | MAP_NR((tsk)->thread.esp0) < max_mapnr) \ | ||
134 | eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \ | ||
135 | eip; }) | ||
136 | #define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) | ||
137 | |||
138 | #define cpu_relax() barrier() | ||
139 | |||
140 | #endif | ||