diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-v850/processor.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-v850/processor.h')
-rw-r--r-- | include/asm-v850/processor.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/include/asm-v850/processor.h b/include/asm-v850/processor.h new file mode 100644 index 000000000000..d41f925f5182 --- /dev/null +++ b/include/asm-v850/processor.h | |||
@@ -0,0 +1,120 @@ | |||
1 | /* | ||
2 | * include/asm-v850/processor.h | ||
3 | * | ||
4 | * Copyright (C) 2001,02,03 NEC Electronics Corporation | ||
5 | * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General | ||
8 | * Public License. See the file COPYING in the main directory of this | ||
9 | * archive for more details. | ||
10 | * | ||
11 | * Written by Miles Bader <miles@gnu.org> | ||
12 | */ | ||
13 | |||
14 | #ifndef __V850_PROCESSOR_H__ | ||
15 | #define __V850_PROCESSOR_H__ | ||
16 | |||
17 | #include <linux/config.h> | ||
18 | #ifndef __ASSEMBLY__ /* <linux/thread_info.h> is not asm-safe. */ | ||
19 | #include <linux/thread_info.h> | ||
20 | #endif | ||
21 | |||
22 | #include <asm/ptrace.h> | ||
23 | #include <asm/entry.h> | ||
24 | |||
25 | /* Some code expects `segment' stuff to be defined here. */ | ||
26 | #include <asm/segment.h> | ||
27 | |||
28 | |||
29 | /* | ||
30 | * The only places this is used seem to be horrible bletcherous kludges, | ||
31 | * so we just define it to be as large as possible. | ||
32 | */ | ||
33 | #define TASK_SIZE (0xFFFFFFFF) | ||
34 | |||
35 | /* | ||
36 | * This decides where the kernel will search for a free chunk of vm | ||
37 | * space during mmap's. We won't be using it. | ||
38 | */ | ||
39 | #define TASK_UNMAPPED_BASE 0 | ||
40 | |||
41 | |||
42 | #ifndef __ASSEMBLY__ | ||
43 | |||
44 | |||
45 | /* | ||
46 | * Default implementation of macro that returns current | ||
47 | * instruction pointer ("program counter"). | ||
48 | */ | ||
49 | #define current_text_addr() ({ __label__ _l; _l: &&_l;}) | ||
50 | |||
51 | /* If you change this, you must change the associated assembly-languages | ||
52 | constants defined below, THREAD_*. */ | ||
53 | struct thread_struct { | ||
54 | /* kernel stack pointer (must be first field in structure) */ | ||
55 | unsigned long ksp; | ||
56 | }; | ||
57 | |||
58 | #define INIT_THREAD { sizeof init_stack + (unsigned long)init_stack } | ||
59 | |||
60 | |||
61 | /* Do necessary setup to start up a newly executed thread. */ | ||
62 | extern inline void start_thread (struct pt_regs *regs, | ||
63 | unsigned long pc, unsigned long usp) | ||
64 | { | ||
65 | regs->pc = pc; | ||
66 | regs->gpr[GPR_SP] = usp; | ||
67 | regs->kernel_mode = 0; | ||
68 | } | ||
69 | |||
70 | /* Free all resources held by a thread. */ | ||
71 | extern inline void release_thread (struct task_struct *dead_task) | ||
72 | { | ||
73 | } | ||
74 | |||
75 | /* Prepare to copy thread state - unlazy all lazy status */ | ||
76 | #define prepare_to_copy(tsk) do { } while (0) | ||
77 | |||
78 | extern int kernel_thread (int (*fn)(void *), void * arg, unsigned long flags); | ||
79 | |||
80 | /* Free current thread data structures etc. */ | ||
81 | static inline void exit_thread (void) | ||
82 | { | ||
83 | } | ||
84 | |||
85 | |||
86 | /* Return the registers saved during context-switch by the currently | ||
87 | not-running thread T. Note that this only includes some registers! | ||
88 | See entry.S for details. */ | ||
89 | #define thread_saved_regs(t) \ | ||
90 | ((struct pt_regs*)((t)->thread.ksp + STATE_SAVE_PT_OFFSET)) | ||
91 | /* Return saved (kernel) PC of a blocked thread. Actually, we return the | ||
92 | LP register, because the thread is actually blocked in switch_thread, | ||
93 | and we're interested in the PC it will _return_ to. */ | ||
94 | #define thread_saved_pc(t) (thread_saved_regs(t)->gpr[GPR_LP]) | ||
95 | |||
96 | |||
97 | unsigned long get_wchan (struct task_struct *p); | ||
98 | |||
99 | |||
100 | /* Return some info about the user process TASK. */ | ||
101 | #define task_tos(task) ((unsigned long)(task)->thread_info + THREAD_SIZE) | ||
102 | #define task_regs(task) ((struct pt_regs *)task_tos (task) - 1) | ||
103 | #define task_sp(task) (task_regs (task)->gpr[GPR_SP]) | ||
104 | #define task_pc(task) (task_regs (task)->pc) | ||
105 | /* Grotty old names for some. */ | ||
106 | #define KSTK_EIP(task) task_pc (task) | ||
107 | #define KSTK_ESP(task) task_sp (task) | ||
108 | |||
109 | |||
110 | #define cpu_relax() ((void)0) | ||
111 | |||
112 | |||
113 | #else /* __ASSEMBLY__ */ | ||
114 | |||
115 | #define THREAD_KSP 0 | ||
116 | |||
117 | #endif /* !__ASSEMBLY__ */ | ||
118 | |||
119 | |||
120 | #endif /* __V850_PROCESSOR_H__ */ | ||