2 * linux/include/asm/traps.h
4 * Copyright (C) 1993 Hamish Macdonald
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive
16 typedef void (*e_vector)(void);
18 extern e_vector vectors[];
22 #define VEC_RESETSP (0)
23 #define VEC_RESETPC (1)
24 #define VEC_BUSERR (2)
25 #define VEC_ADDRERR (3)
26 #define VEC_ILLEGAL (4)
27 #define VEC_ZERODIV (5)
32 #define VEC_LINE10 (10)
33 #define VEC_LINE11 (11)
34 #define VEC_RESV12 (12)
35 #define VEC_COPROC (13)
36 #define VEC_FORMAT (14)
37 #define VEC_UNINT (15)
38 #define VEC_RESV16 (16)
39 #define VEC_RESV17 (17)
40 #define VEC_RESV18 (18)
41 #define VEC_RESV19 (19)
42 #define VEC_RESV20 (20)
43 #define VEC_RESV21 (21)
44 #define VEC_RESV22 (22)
45 #define VEC_RESV23 (23)
55 #define VEC_TRAP1 (33)
56 #define VEC_TRAP2 (34)
57 #define VEC_TRAP3 (35)
58 #define VEC_TRAP4 (36)
59 #define VEC_TRAP5 (37)
60 #define VEC_TRAP6 (38)
61 #define VEC_TRAP7 (39)
62 #define VEC_TRAP8 (40)
63 #define VEC_TRAP9 (41)
64 #define VEC_TRAP10 (42)
65 #define VEC_TRAP11 (43)
66 #define VEC_TRAP12 (44)
67 #define VEC_TRAP13 (45)
68 #define VEC_TRAP14 (46)
69 #define VEC_TRAP15 (47)
70 #define VEC_FPBRUC (48)
72 #define VEC_FPDIVZ (50)
73 #define VEC_FPUNDER (51)
75 #define VEC_FPOVER (53)
76 #define VEC_FPNAN (54)
77 #define VEC_FPUNSUP (55)
78 #define VEC_MMUCFG (56)
79 #define VEC_MMUILL (57)
80 #define VEC_MMUACC (58)
81 #define VEC_RESV59 (59)
82 #define VEC_UNIMPEA (60)
83 #define VEC_UNIMPII (61)
84 #define VEC_RESV62 (62)
85 #define VEC_RESV63 (63)
88 #define VECOFF(vec) ((vec)<<2)
92 /* Status register bits */
98 /* bits for 68020/68030 special status word */
110 /* bits for 68030 MMU status register (mmusr,psr) */
112 #define MMU_B (0x8000) /* bus error */
113 #define MMU_L (0x4000) /* limit violation */
114 #define MMU_S (0x2000) /* supervisor violation */
115 #define MMU_WP (0x0800) /* write-protected */
116 #define MMU_I (0x0400) /* invalid descriptor */
117 #define MMU_M (0x0200) /* ATC entry modified */
118 #define MMU_T (0x0040) /* transparent translation */
119 #define MMU_NUM (0x0007) /* number of levels traversed */
122 /* bits for 68040 special status word */
123 #define CP_040 (0x8000)
124 #define CU_040 (0x4000)
125 #define CT_040 (0x2000)
126 #define CM_040 (0x1000)
127 #define MA_040 (0x0800)
128 #define ATC_040 (0x0400)
129 #define LK_040 (0x0200)
130 #define RW_040 (0x0100)
131 #define SIZ_040 (0x0060)
132 #define TT_040 (0x0018)
133 #define TM_040 (0x0007)
135 /* bits for 68040 write back status word */
136 #define WBV_040 (0x80)
137 #define WBSIZ_040 (0x60)
138 #define WBBYT_040 (0x20)
139 #define WBWRD_040 (0x40)
140 #define WBLNG_040 (0x00)
141 #define WBTT_040 (0x18)
142 #define WBTM_040 (0x07)
144 /* bus access size codes */
145 #define BA_SIZE_BYTE (0x20)
146 #define BA_SIZE_WORD (0x40)
147 #define BA_SIZE_LONG (0x00)
148 #define BA_SIZE_LINE (0x60)
150 /* bus access transfer type codes */
151 #define BA_TT_MOVE16 (0x08)
153 /* bits for 68040 MMU status register (mmusr) */
154 #define MMU_B_040 (0x0800)
155 #define MMU_G_040 (0x0400)
156 #define MMU_S_040 (0x0080)
157 #define MMU_CM_040 (0x0060)
158 #define MMU_M_040 (0x0010)
159 #define MMU_WP_040 (0x0004)
160 #define MMU_T_040 (0x0002)
161 #define MMU_R_040 (0x0001)
163 /* bits in the 68060 fault status long word (FSLW) */
164 #define MMU060_MA (0x08000000) /* misaligned */
165 #define MMU060_LK (0x02000000) /* locked transfer */
166 #define MMU060_RW (0x01800000) /* read/write */
167 # define MMU060_RW_W (0x00800000) /* write */
168 # define MMU060_RW_R (0x01000000) /* read */
169 # define MMU060_RW_RMW (0x01800000) /* read/modify/write */
170 # define MMU060_W (0x00800000) /* general write, includes rmw */
171 #define MMU060_SIZ (0x00600000) /* transfer size */
172 #define MMU060_TT (0x00180000) /* transfer type (TT) bits */
173 #define MMU060_TM (0x00070000) /* transfer modifier (TM) bits */
174 #define MMU060_IO (0x00008000) /* instruction or operand */
175 #define MMU060_PBE (0x00004000) /* push buffer bus error */
176 #define MMU060_SBE (0x00002000) /* store buffer bus error */
177 #define MMU060_PTA (0x00001000) /* pointer A fault */
178 #define MMU060_PTB (0x00000800) /* pointer B fault */
179 #define MMU060_IL (0x00000400) /* double indirect descr fault */
180 #define MMU060_PF (0x00000200) /* page fault (invalid descr) */
181 #define MMU060_SP (0x00000100) /* supervisor protection */
182 #define MMU060_WP (0x00000080) /* write protection */
183 #define MMU060_TWE (0x00000040) /* bus error on table search */
184 #define MMU060_RE (0x00000020) /* bus error on read */
185 #define MMU060_WE (0x00000010) /* bus error on write */
186 #define MMU060_TTR (0x00000008) /* error caused by TTR translation */
187 #define MMU060_BPE (0x00000004) /* branch prediction error */
188 #define MMU060_SEE (0x00000001) /* software emulated error */
190 /* cases of missing or invalid descriptors */
191 #define MMU060_DESC_ERR (MMU060_PTA | MMU060_PTB | \
192 MMU060_IL | MMU060_PF)
193 /* bits that indicate real errors */
194 #define MMU060_ERR_BITS (MMU060_PBE | MMU060_SBE | MMU060_DESC_ERR | MMU060_SP | \
195 MMU060_WP | MMU060_TWE | MMU060_RE | MMU060_WE)
197 /* structure for stack frames */
200 struct pt_regs ptregs;
203 unsigned long iaddr; /* instruction address */
206 unsigned long effaddr; /* effective address */
209 unsigned long effaddr; /* effective address */
210 unsigned long pc; /* pc of faulted instr */
213 unsigned long effaddr; /* effective address */
214 unsigned short ssw; /* special status word */
215 unsigned short wb3s; /* write back 3 status */
216 unsigned short wb2s; /* write back 2 status */
217 unsigned short wb1s; /* write back 1 status */
218 unsigned long faddr; /* fault address */
219 unsigned long wb3a; /* write back 3 address */
220 unsigned long wb3d; /* write back 3 data */
221 unsigned long wb2a; /* write back 2 address */
222 unsigned long wb2d; /* write back 2 data */
223 unsigned long wb1a; /* write back 1 address */
224 unsigned long wb1dpd0; /* write back 1 data/push data 0*/
225 unsigned long pd1; /* push data 1*/
226 unsigned long pd2; /* push data 2*/
227 unsigned long pd3; /* push data 3*/
230 unsigned long iaddr; /* instruction address */
231 unsigned short int1[4]; /* internal registers */
235 unsigned short ssw; /* special status word */
236 unsigned short isc; /* instruction stage c */
237 unsigned short isb; /* instruction stage b */
238 unsigned long daddr; /* data cycle fault address */
239 unsigned short int2[2];
240 unsigned long dobuf; /* data cycle output buffer */
241 unsigned short int3[2];
245 unsigned short ssw; /* special status word */
246 unsigned short isc; /* instruction stage c */
247 unsigned short isb; /* instruction stage b */
248 unsigned long daddr; /* data cycle fault address */
249 unsigned short int2[2];
250 unsigned long dobuf; /* data cycle output buffer */
251 unsigned short int3[4];
252 unsigned long baddr; /* stage B address */
253 unsigned short int4[2];
254 unsigned long dibuf; /* data cycle input buffer */
255 unsigned short int5[3];
256 unsigned ver : 4; /* stack frame version # */
258 unsigned short int7[18];
263 #endif /* __ASSEMBLY__ */
265 #endif /* _M68K_TRAPS_H */