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-frv/registers.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-frv/registers.h')
-rw-r--r-- | include/asm-frv/registers.h | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/include/asm-frv/registers.h b/include/asm-frv/registers.h new file mode 100644 index 000000000000..fccfd95cff68 --- /dev/null +++ b/include/asm-frv/registers.h | |||
@@ -0,0 +1,255 @@ | |||
1 | /* registers.h: register frame declarations | ||
2 | * | ||
3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | /* | ||
13 | * notes: | ||
14 | * | ||
15 | * (1) that the members of all these structures are carefully aligned to permit | ||
16 | * usage of STD/STDF instructions | ||
17 | * | ||
18 | * (2) if you change these structures, you must change the code in | ||
19 | * arch/frvnommu/kernel/{break.S,entry.S,switch_to.S,gdb-stub.c} | ||
20 | * | ||
21 | * | ||
22 | * the kernel stack space block looks like this: | ||
23 | * | ||
24 | * +0x2000 +---------------------- | ||
25 | * | union { | ||
26 | * | struct user_context | ||
27 | * | struct pt_regs [user exception] | ||
28 | * | } | ||
29 | * +---------------------- <-- __kernel_frame0_ptr (maybe GR28) | ||
30 | * | | ||
31 | * | kernel stack | ||
32 | * | | ||
33 | * |...................... | ||
34 | * | struct pt_regs [kernel exception] | ||
35 | * |...................... <-- __kernel_frame0_ptr (maybe GR28) | ||
36 | * | | ||
37 | * | kernel stack | ||
38 | * | | ||
39 | * |...................... <-- stack pointer (GR1) | ||
40 | * | | ||
41 | * | unused stack space | ||
42 | * | | ||
43 | * +---------------------- | ||
44 | * | struct thread_info | ||
45 | * +0x0000 +---------------------- <-- __current_thread_info (GR15); | ||
46 | * | ||
47 | * note that GR28 points to the current exception frame | ||
48 | */ | ||
49 | |||
50 | #ifndef _ASM_REGISTERS_H | ||
51 | #define _ASM_REGISTERS_H | ||
52 | |||
53 | #ifndef __ASSEMBLY__ | ||
54 | #define __OFFSET(X) (X) | ||
55 | #define __OFFSETC(X,N) xxxxxxxxxxxxxxxxxxxxxxxx | ||
56 | #else | ||
57 | #define __OFFSET(X) ((X)*4) | ||
58 | #define __OFFSETC(X,N) ((X)*4+(N)) | ||
59 | #endif | ||
60 | |||
61 | /*****************************************************************************/ | ||
62 | /* | ||
63 | * Exception/Interrupt frame | ||
64 | * - held on kernel stack | ||
65 | * - 8-byte aligned on stack (old SP is saved in frame) | ||
66 | * - GR0 is fixed 0, so we don't save it | ||
67 | */ | ||
68 | #ifndef __ASSEMBLY__ | ||
69 | |||
70 | struct pt_regs { | ||
71 | unsigned long psr; /* Processor Status Register */ | ||
72 | unsigned long isr; /* Integer Status Register */ | ||
73 | unsigned long ccr; /* Condition Code Register */ | ||
74 | unsigned long cccr; /* Condition Code for Conditional Insns Register */ | ||
75 | unsigned long lr; /* Link Register */ | ||
76 | unsigned long lcr; /* Loop Count Register */ | ||
77 | unsigned long pc; /* Program Counter Register */ | ||
78 | unsigned long __status; /* exception status */ | ||
79 | unsigned long syscallno; /* syscall number or -1 */ | ||
80 | unsigned long orig_gr8; /* original syscall arg #1 */ | ||
81 | unsigned long gner0; | ||
82 | unsigned long gner1; | ||
83 | unsigned long long iacc0; | ||
84 | unsigned long tbr; /* GR0 is fixed zero, so we use this for TBR */ | ||
85 | unsigned long sp; /* GR1: USP/KSP */ | ||
86 | unsigned long fp; /* GR2: FP */ | ||
87 | unsigned long gr3; | ||
88 | unsigned long gr4; | ||
89 | unsigned long gr5; | ||
90 | unsigned long gr6; | ||
91 | unsigned long gr7; /* syscall number */ | ||
92 | unsigned long gr8; /* 1st syscall param; syscall return */ | ||
93 | unsigned long gr9; /* 2nd syscall param */ | ||
94 | unsigned long gr10; /* 3rd syscall param */ | ||
95 | unsigned long gr11; /* 4th syscall param */ | ||
96 | unsigned long gr12; /* 5th syscall param */ | ||
97 | unsigned long gr13; /* 6th syscall param */ | ||
98 | unsigned long gr14; | ||
99 | unsigned long gr15; | ||
100 | unsigned long gr16; /* GP pointer */ | ||
101 | unsigned long gr17; /* small data */ | ||
102 | unsigned long gr18; /* PIC/PID */ | ||
103 | unsigned long gr19; | ||
104 | unsigned long gr20; | ||
105 | unsigned long gr21; | ||
106 | unsigned long gr22; | ||
107 | unsigned long gr23; | ||
108 | unsigned long gr24; | ||
109 | unsigned long gr25; | ||
110 | unsigned long gr26; | ||
111 | unsigned long gr27; | ||
112 | struct pt_regs *next_frame; /* GR28 - next exception frame */ | ||
113 | unsigned long gr29; /* GR29 - OS reserved */ | ||
114 | unsigned long gr30; /* GR30 - OS reserved */ | ||
115 | unsigned long gr31; /* GR31 - OS reserved */ | ||
116 | } __attribute__((aligned(8))); | ||
117 | |||
118 | #endif | ||
119 | |||
120 | #define REG_PSR __OFFSET( 0) /* Processor Status Register */ | ||
121 | #define REG_ISR __OFFSET( 1) /* Integer Status Register */ | ||
122 | #define REG_CCR __OFFSET( 2) /* Condition Code Register */ | ||
123 | #define REG_CCCR __OFFSET( 3) /* Condition Code for Conditional Insns Register */ | ||
124 | #define REG_LR __OFFSET( 4) /* Link Register */ | ||
125 | #define REG_LCR __OFFSET( 5) /* Loop Count Register */ | ||
126 | #define REG_PC __OFFSET( 6) /* Program Counter */ | ||
127 | |||
128 | #define REG__STATUS __OFFSET( 7) /* exception status */ | ||
129 | #define REG__STATUS_STEP 0x00000001 /* - reenable single stepping on return */ | ||
130 | #define REG__STATUS_STEPPED 0x00000002 /* - single step caused exception */ | ||
131 | #define REG__STATUS_BROKE 0x00000004 /* - BREAK insn caused exception */ | ||
132 | #define REG__STATUS_SYSC_ENTRY 0x40000000 /* - T on syscall entry (ptrace.c only) */ | ||
133 | #define REG__STATUS_SYSC_EXIT 0x80000000 /* - T on syscall exit (ptrace.c only) */ | ||
134 | |||
135 | #define REG_SYSCALLNO __OFFSET( 8) /* syscall number or -1 */ | ||
136 | #define REG_ORIG_GR8 __OFFSET( 9) /* saved GR8 for signal handling */ | ||
137 | #define REG_GNER0 __OFFSET(10) | ||
138 | #define REG_GNER1 __OFFSET(11) | ||
139 | #define REG_IACC0 __OFFSET(12) | ||
140 | |||
141 | #define REG_TBR __OFFSET(14) /* Trap Vector Register */ | ||
142 | #define REG_GR(R) __OFFSET((14+(R))) | ||
143 | #define REG__END REG_GR(32) | ||
144 | |||
145 | #define REG_SP REG_GR(1) | ||
146 | #define REG_FP REG_GR(2) | ||
147 | #define REG_PREV_FRAME REG_GR(28) /* previous exception frame pointer (old gr28 value) */ | ||
148 | #define REG_CURR_TASK REG_GR(29) /* current task */ | ||
149 | |||
150 | /*****************************************************************************/ | ||
151 | /* | ||
152 | * extension tacked in front of the exception frame in debug mode | ||
153 | */ | ||
154 | #ifndef __ASSEMBLY__ | ||
155 | |||
156 | struct pt_debug_regs | ||
157 | { | ||
158 | unsigned long bpsr; | ||
159 | unsigned long dcr; | ||
160 | unsigned long brr; | ||
161 | unsigned long nmar; | ||
162 | struct pt_regs normal_regs; | ||
163 | } __attribute__((aligned(8))); | ||
164 | |||
165 | #endif | ||
166 | |||
167 | #define REG_NMAR __OFFSET(-1) | ||
168 | #define REG_BRR __OFFSET(-2) | ||
169 | #define REG_DCR __OFFSET(-3) | ||
170 | #define REG_BPSR __OFFSET(-4) | ||
171 | #define REG__DEBUG_XTRA __OFFSET(4) | ||
172 | |||
173 | /*****************************************************************************/ | ||
174 | /* | ||
175 | * userspace registers | ||
176 | */ | ||
177 | #ifndef __ASSEMBLY__ | ||
178 | |||
179 | struct user_int_regs | ||
180 | { | ||
181 | /* integer registers | ||
182 | * - up to gr[31] mirror pt_regs | ||
183 | * - total size must be multiple of 8 bytes | ||
184 | */ | ||
185 | unsigned long psr; /* Processor Status Register */ | ||
186 | unsigned long isr; /* Integer Status Register */ | ||
187 | unsigned long ccr; /* Condition Code Register */ | ||
188 | unsigned long cccr; /* Condition Code for Conditional Insns Register */ | ||
189 | unsigned long lr; /* Link Register */ | ||
190 | unsigned long lcr; /* Loop Count Register */ | ||
191 | unsigned long pc; /* Program Counter Register */ | ||
192 | unsigned long __status; /* exception status */ | ||
193 | unsigned long syscallno; /* syscall number or -1 */ | ||
194 | unsigned long orig_gr8; /* original syscall arg #1 */ | ||
195 | unsigned long gner[2]; | ||
196 | unsigned long long iacc[1]; | ||
197 | |||
198 | union { | ||
199 | unsigned long tbr; | ||
200 | unsigned long gr[64]; | ||
201 | }; | ||
202 | }; | ||
203 | |||
204 | struct user_fpmedia_regs | ||
205 | { | ||
206 | /* FP/Media registers */ | ||
207 | unsigned long fr[64]; | ||
208 | unsigned long fner[2]; | ||
209 | unsigned long msr[2]; | ||
210 | unsigned long acc[8]; | ||
211 | unsigned char accg[8]; | ||
212 | unsigned long fsr[1]; | ||
213 | }; | ||
214 | |||
215 | struct user_context | ||
216 | { | ||
217 | struct user_int_regs i; | ||
218 | struct user_fpmedia_regs f; | ||
219 | |||
220 | /* we provide a context extension so that we can save the regs for CPUs that | ||
221 | * implement many more of Fujitsu's lavish register spec | ||
222 | */ | ||
223 | void *extension; | ||
224 | } __attribute__((aligned(8))); | ||
225 | |||
226 | #endif | ||
227 | |||
228 | #define NR_USER_INT_REGS (14 + 64) | ||
229 | #define NR_USER_FPMEDIA_REGS (64 + 2 + 2 + 8 + 8/4 + 1) | ||
230 | #define NR_USER_CONTEXT (NR_USER_INT_REGS + NR_USER_FPMEDIA_REGS + 1) | ||
231 | |||
232 | #define USER_CONTEXT_SIZE (((NR_USER_CONTEXT + 1) & ~1) * 4) | ||
233 | |||
234 | #define __THREAD_FRAME __OFFSET(0) | ||
235 | #define __THREAD_CURR __OFFSET(1) | ||
236 | #define __THREAD_SP __OFFSET(2) | ||
237 | #define __THREAD_FP __OFFSET(3) | ||
238 | #define __THREAD_LR __OFFSET(4) | ||
239 | #define __THREAD_PC __OFFSET(5) | ||
240 | #define __THREAD_GR(R) __OFFSET(6 + (R) - 16) | ||
241 | #define __THREAD_FRAME0 __OFFSET(19) | ||
242 | #define __THREAD_USER __OFFSET(19) | ||
243 | |||
244 | #define __USER_INT __OFFSET(0) | ||
245 | #define __INT_GR(R) __OFFSET(14 + (R)) | ||
246 | |||
247 | #define __USER_FPMEDIA __OFFSET(NR_USER_INT_REGS) | ||
248 | #define __FPMEDIA_FR(R) __OFFSET(NR_USER_INT_REGS + (R)) | ||
249 | #define __FPMEDIA_FNER(R) __OFFSET(NR_USER_INT_REGS + 64 + (R)) | ||
250 | #define __FPMEDIA_MSR(R) __OFFSET(NR_USER_INT_REGS + 66 + (R)) | ||
251 | #define __FPMEDIA_ACC(R) __OFFSET(NR_USER_INT_REGS + 68 + (R)) | ||
252 | #define __FPMEDIA_ACCG(R) __OFFSETC(NR_USER_INT_REGS + 76, (R)) | ||
253 | #define __FPMEDIA_FSR(R) __OFFSET(NR_USER_INT_REGS + 78 + (R)) | ||
254 | |||
255 | #endif /* _ASM_REGISTERS_H */ | ||