diff options
Diffstat (limited to 'include/asm-m68k/processor.h')
-rw-r--r-- | include/asm-m68k/processor.h | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/include/asm-m68k/processor.h b/include/asm-m68k/processor.h deleted file mode 100644 index 1f61ef53f0e0..000000000000 --- a/include/asm-m68k/processor.h +++ /dev/null | |||
@@ -1,130 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-m68k/processor.h | ||
3 | * | ||
4 | * Copyright (C) 1995 Hamish Macdonald | ||
5 | */ | ||
6 | |||
7 | #ifndef __ASM_M68K_PROCESSOR_H | ||
8 | #define __ASM_M68K_PROCESSOR_H | ||
9 | |||
10 | /* | ||
11 | * Default implementation of macro that returns current | ||
12 | * instruction pointer ("program counter"). | ||
13 | */ | ||
14 | #define current_text_addr() ({ __label__ _l; _l: &&_l;}) | ||
15 | |||
16 | #include <linux/thread_info.h> | ||
17 | #include <asm/segment.h> | ||
18 | #include <asm/fpu.h> | ||
19 | #include <asm/ptrace.h> | ||
20 | |||
21 | static inline unsigned long rdusp(void) | ||
22 | { | ||
23 | unsigned long usp; | ||
24 | |||
25 | __asm__ __volatile__("move %/usp,%0" : "=a" (usp)); | ||
26 | return usp; | ||
27 | } | ||
28 | |||
29 | static inline void wrusp(unsigned long usp) | ||
30 | { | ||
31 | __asm__ __volatile__("move %0,%/usp" : : "a" (usp)); | ||
32 | } | ||
33 | |||
34 | /* | ||
35 | * User space process size: 3.75GB. This is hardcoded into a few places, | ||
36 | * so don't change it unless you know what you are doing. | ||
37 | */ | ||
38 | #ifndef CONFIG_SUN3 | ||
39 | #define TASK_SIZE (0xF0000000UL) | ||
40 | #else | ||
41 | #define TASK_SIZE (0x0E000000UL) | ||
42 | #endif | ||
43 | |||
44 | #ifdef __KERNEL__ | ||
45 | #define STACK_TOP TASK_SIZE | ||
46 | #define STACK_TOP_MAX STACK_TOP | ||
47 | #endif | ||
48 | |||
49 | /* This decides where the kernel will search for a free chunk of vm | ||
50 | * space during mmap's. | ||
51 | */ | ||
52 | #ifndef CONFIG_SUN3 | ||
53 | #define TASK_UNMAPPED_BASE 0xC0000000UL | ||
54 | #else | ||
55 | #define TASK_UNMAPPED_BASE 0x0A000000UL | ||
56 | #endif | ||
57 | #define TASK_UNMAPPED_ALIGN(addr, off) PAGE_ALIGN(addr) | ||
58 | |||
59 | struct thread_struct { | ||
60 | unsigned long ksp; /* kernel stack pointer */ | ||
61 | unsigned long usp; /* user stack pointer */ | ||
62 | unsigned short sr; /* saved status register */ | ||
63 | unsigned short fs; /* saved fs (sfc, dfc) */ | ||
64 | unsigned long crp[2]; /* cpu root pointer */ | ||
65 | unsigned long esp0; /* points to SR of stack frame */ | ||
66 | unsigned long faddr; /* info about last fault */ | ||
67 | int signo, code; | ||
68 | unsigned long fp[8*3]; | ||
69 | unsigned long fpcntl[3]; /* fp control regs */ | ||
70 | unsigned char fpstate[FPSTATESIZE]; /* floating point state */ | ||
71 | struct thread_info info; | ||
72 | }; | ||
73 | |||
74 | #define INIT_THREAD { \ | ||
75 | .ksp = sizeof(init_stack) + (unsigned long) init_stack, \ | ||
76 | .sr = PS_S, \ | ||
77 | .fs = __KERNEL_DS, \ | ||
78 | .info = INIT_THREAD_INFO(init_task), \ | ||
79 | } | ||
80 | |||
81 | /* | ||
82 | * Do necessary setup to start up a newly executed thread. | ||
83 | */ | ||
84 | static inline void start_thread(struct pt_regs * regs, unsigned long pc, | ||
85 | unsigned long usp) | ||
86 | { | ||
87 | /* reads from user space */ | ||
88 | set_fs(USER_DS); | ||
89 | |||
90 | regs->pc = pc; | ||
91 | regs->sr &= ~0x2000; | ||
92 | wrusp(usp); | ||
93 | } | ||
94 | |||
95 | /* Forward declaration, a strange C thing */ | ||
96 | struct task_struct; | ||
97 | |||
98 | /* Free all resources held by a thread. */ | ||
99 | static inline void release_thread(struct task_struct *dead_task) | ||
100 | { | ||
101 | } | ||
102 | |||
103 | /* Prepare to copy thread state - unlazy all lazy status */ | ||
104 | #define prepare_to_copy(tsk) do { } while (0) | ||
105 | |||
106 | extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); | ||
107 | |||
108 | /* | ||
109 | * Free current thread data structures etc.. | ||
110 | */ | ||
111 | static inline void exit_thread(void) | ||
112 | { | ||
113 | } | ||
114 | |||
115 | extern unsigned long thread_saved_pc(struct task_struct *tsk); | ||
116 | |||
117 | unsigned long get_wchan(struct task_struct *p); | ||
118 | |||
119 | #define KSTK_EIP(tsk) \ | ||
120 | ({ \ | ||
121 | unsigned long eip = 0; \ | ||
122 | if ((tsk)->thread.esp0 > PAGE_SIZE && \ | ||
123 | (virt_addr_valid((tsk)->thread.esp0))) \ | ||
124 | eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \ | ||
125 | eip; }) | ||
126 | #define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) | ||
127 | |||
128 | #define cpu_relax() barrier() | ||
129 | |||
130 | #endif | ||