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target-ppc: fix fsel instruction
[qemu/qemu-JZ.git] / target-mips / translate_init.c
blob0026cd06ff760c83c3259d871ed6d945accb4bc0
1 /*
2 * MIPS emulation for qemu: CPU initialisation routines.
3 *
4 * Copyright (c) 2004-2005 Jocelyn Mayer
5 * Copyright (c) 2007 Herve Poussineau
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 /* CPU / CPU family specific config register values. */
23
24 /* Have config1, uncached coherency */
25 #define MIPS_CONFIG0 \
26 ((1 << CP0C0_M) | (0x2 << CP0C0_K0))
27
28 /* Have config2, no coprocessor2 attached, no MDMX support attached,
29 no performance counters, watch registers present,
30 no code compression, EJTAG present, no FPU */
31 #define MIPS_CONFIG1 \
32 ((1 << CP0C1_M) | \
33 (0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) | \
34 (1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) | \
35 (0 << CP0C1_FP))
36
37 /* Have config3, no tertiary/secondary caches implemented */
38 #define MIPS_CONFIG2 \
39 ((1 << CP0C2_M))
40
41 /* No config4, no DSP ASE, no large physaddr (PABITS),
42 no external interrupt controller, no vectored interupts,
43 no 1kb pages, no SmartMIPS ASE, no trace logic */
44 #define MIPS_CONFIG3 \
45 ((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) | \
46 (0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) | \
47 (0 << CP0C3_SM) | (0 << CP0C3_TL))
48
49 /* Define a implementation number of 1.
50 Define a major version 1, minor version 0. */
51 #define MIPS_FCR0 ((0 << FCR0_S) | (0x1 << FCR0_PRID) | (0x10 << FCR0_REV))
52
53 /* MMU types, the first four entries have the same layout as the
54 CP0C0_MT field. */
55 enum mips_mmu_types {
56 MMU_TYPE_NONE,
57 MMU_TYPE_R4000,
58 MMU_TYPE_RESERVED,
59 MMU_TYPE_FMT,
60 MMU_TYPE_R3000,
61 MMU_TYPE_R6000,
62 MMU_TYPE_R8000
63 };
64
65 struct mips_def_t {
66 const char *name;
67 int32_t CP0_PRid;
68 int32_t CP0_Config0;
69 int32_t CP0_Config1;
70 int32_t CP0_Config2;
71 int32_t CP0_Config3;
72 int32_t CP0_Config6;
73 int32_t CP0_Config7;
74 int32_t SYNCI_Step;
75 int32_t CCRes;
76 int32_t CP0_Status_rw_bitmask;
77 int32_t CP0_TCStatus_rw_bitmask;
78 int32_t CP0_SRSCtl;
79 int32_t CP1_fcr0;
80 int32_t SEGBITS;
81 int32_t PABITS;
82 int32_t CP0_SRSConf0_rw_bitmask;
83 int32_t CP0_SRSConf0;
84 int32_t CP0_SRSConf1_rw_bitmask;
85 int32_t CP0_SRSConf1;
86 int32_t CP0_SRSConf2_rw_bitmask;
87 int32_t CP0_SRSConf2;
88 int32_t CP0_SRSConf3_rw_bitmask;
89 int32_t CP0_SRSConf3;
90 int32_t CP0_SRSConf4_rw_bitmask;
91 int32_t CP0_SRSConf4;
92 int insn_flags;
93 enum mips_mmu_types mmu_type;
94 };
95
96 /*****************************************************************************/
97 /* MIPS CPU definitions */
98 static const mips_def_t mips_defs[] =
99 {
100 {
101 .name = "4Kc",
102 .CP0_PRid = 0x00018000,
103 .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
104 .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
105 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
106 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
107 .CP0_Config2 = MIPS_CONFIG2,
108 .CP0_Config3 = MIPS_CONFIG3,
109 .SYNCI_Step = 32,
110 .CCRes = 2,
111 .CP0_Status_rw_bitmask = 0x1278FF17,
112 .SEGBITS = 32,
113 .PABITS = 32,
114 .insn_flags = CPU_MIPS32 | ASE_MIPS16,
115 .mmu_type = MMU_TYPE_R4000,
116 },
117 {
118 .name = "4Km",
119 .CP0_PRid = 0x00018300,
120 /* Config1 implemented, fixed mapping MMU,
121 no virtual icache, uncached coherency. */
122 .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
123 .CP0_Config1 = MIPS_CONFIG1 |
124 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
125 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
126 .CP0_Config2 = MIPS_CONFIG2,
127 .CP0_Config3 = MIPS_CONFIG3,
128 .SYNCI_Step = 32,
129 .CCRes = 2,
130 .CP0_Status_rw_bitmask = 0x1258FF17,
131 .SEGBITS = 32,
132 .PABITS = 32,
133 .insn_flags = CPU_MIPS32 | ASE_MIPS16,
134 .mmu_type = MMU_TYPE_FMT,
135 },
136 {
137 .name = "4KEcR1",
138 .CP0_PRid = 0x00018400,
139 .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
140 .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
141 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
142 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
143 .CP0_Config2 = MIPS_CONFIG2,
144 .CP0_Config3 = MIPS_CONFIG3,
145 .SYNCI_Step = 32,
146 .CCRes = 2,
147 .CP0_Status_rw_bitmask = 0x1278FF17,
148 .SEGBITS = 32,
149 .PABITS = 32,
150 .insn_flags = CPU_MIPS32 | ASE_MIPS16,
151 .mmu_type = MMU_TYPE_R4000,
152 },
153 {
154 .name = "4KEmR1",
155 .CP0_PRid = 0x00018500,
156 .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
157 .CP0_Config1 = MIPS_CONFIG1 |
158 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
159 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
160 .CP0_Config2 = MIPS_CONFIG2,
161 .CP0_Config3 = MIPS_CONFIG3,
162 .SYNCI_Step = 32,
163 .CCRes = 2,
164 .CP0_Status_rw_bitmask = 0x1258FF17,
165 .SEGBITS = 32,
166 .PABITS = 32,
167 .insn_flags = CPU_MIPS32 | ASE_MIPS16,
168 .mmu_type = MMU_TYPE_FMT,
169 },
170 {
171 .name = "4KEc",
172 .CP0_PRid = 0x00019000,
173 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
174 (MMU_TYPE_R4000 << CP0C0_MT),
175 .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
176 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
177 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
178 .CP0_Config2 = MIPS_CONFIG2,
179 .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
180 .SYNCI_Step = 32,
181 .CCRes = 2,
182 .CP0_Status_rw_bitmask = 0x1278FF17,
183 .SEGBITS = 32,
184 .PABITS = 32,
185 .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
186 .mmu_type = MMU_TYPE_R4000,
187 },
188 {
189 .name = "4KEm",
190 .CP0_PRid = 0x00019100,
191 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
192 (MMU_TYPE_FMT << CP0C0_MT),
193 .CP0_Config1 = MIPS_CONFIG1 |
194 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
195 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
196 .CP0_Config2 = MIPS_CONFIG2,
197 .CP0_Config3 = MIPS_CONFIG3,
198 .SYNCI_Step = 32,
199 .CCRes = 2,
200 .CP0_Status_rw_bitmask = 0x1258FF17,
201 .SEGBITS = 32,
202 .PABITS = 32,
203 .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
204 .mmu_type = MMU_TYPE_FMT,
205 },
206 {
207 .name = "24Kc",
208 .CP0_PRid = 0x00019300,
209 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
210 (MMU_TYPE_R4000 << CP0C0_MT),
211 .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
212 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
213 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
214 .CP0_Config2 = MIPS_CONFIG2,
215 .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
216 .SYNCI_Step = 32,
217 .CCRes = 2,
218 /* No DSP implemented. */
219 .CP0_Status_rw_bitmask = 0x1278FF1F,
220 .SEGBITS = 32,
221 .PABITS = 32,
222 .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
223 .mmu_type = MMU_TYPE_R4000,
224 },
225 {
226 .name = "24Kf",
227 .CP0_PRid = 0x00019300,
228 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
229 (MMU_TYPE_R4000 << CP0C0_MT),
230 .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
231 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
232 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
233 .CP0_Config2 = MIPS_CONFIG2,
234 .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
235 .SYNCI_Step = 32,
236 .CCRes = 2,
237 /* No DSP implemented. */
238 .CP0_Status_rw_bitmask = 0x3678FF1F,
239 .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
240 (1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
241 .SEGBITS = 32,
242 .PABITS = 32,
243 .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
244 .mmu_type = MMU_TYPE_R4000,
245 },
246 {
247 .name = "34Kf",
248 .CP0_PRid = 0x00019500,
249 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
250 (MMU_TYPE_R4000 << CP0C0_MT),
251 .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
252 (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
253 (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA),
254 .CP0_Config2 = MIPS_CONFIG2,
255 .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt) | (1 << CP0C3_MT),
256 .SYNCI_Step = 32,
257 .CCRes = 2,
258 /* No DSP implemented. */
259 .CP0_Status_rw_bitmask = 0x3678FF1F,
260 /* No DSP implemented. */
261 .CP0_TCStatus_rw_bitmask = (0 << CP0TCSt_TCU3) | (0 << CP0TCSt_TCU2) |
262 (1 << CP0TCSt_TCU1) | (1 << CP0TCSt_TCU0) |
263 (0 << CP0TCSt_TMX) | (1 << CP0TCSt_DT) |
264 (1 << CP0TCSt_DA) | (1 << CP0TCSt_A) |
265 (0x3 << CP0TCSt_TKSU) | (1 << CP0TCSt_IXMT) |
266 (0xff << CP0TCSt_TASID),
267 .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
268 (1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID),
269 .CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
270 .CP0_SRSConf0_rw_bitmask = 0x3fffffff,
271 .CP0_SRSConf0 = (1 << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
272 (0x3fe << CP0SRSC0_SRS2) | (0x3fe << CP0SRSC0_SRS1),
273 .CP0_SRSConf1_rw_bitmask = 0x3fffffff,
274 .CP0_SRSConf1 = (1 << CP0SRSC1_M) | (0x3fe << CP0SRSC1_SRS6) |
275 (0x3fe << CP0SRSC1_SRS5) | (0x3fe << CP0SRSC1_SRS4),
276 .CP0_SRSConf2_rw_bitmask = 0x3fffffff,
277 .CP0_SRSConf2 = (1 << CP0SRSC2_M) | (0x3fe << CP0SRSC2_SRS9) |
278 (0x3fe << CP0SRSC2_SRS8) | (0x3fe << CP0SRSC2_SRS7),
279 .CP0_SRSConf3_rw_bitmask = 0x3fffffff,
280 .CP0_SRSConf3 = (1 << CP0SRSC3_M) | (0x3fe << CP0SRSC3_SRS12) |
281 (0x3fe << CP0SRSC3_SRS11) | (0x3fe << CP0SRSC3_SRS10),
282 .CP0_SRSConf4_rw_bitmask = 0x3fffffff,
283 .CP0_SRSConf4 = (0x3fe << CP0SRSC4_SRS15) |
284 (0x3fe << CP0SRSC4_SRS14) | (0x3fe << CP0SRSC4_SRS13),
285 .SEGBITS = 32,
286 .PABITS = 32,
287 .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_MT,
288 .mmu_type = MMU_TYPE_R4000,
289 },
290 #if defined(TARGET_MIPS64)
291 {
292 .name = "R4000",
293 .CP0_PRid = 0x00000400,
294 /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
295 .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
296 /* Note: Config1 is only used internally, the R4000 has only Config0. */
297 .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
298 .SYNCI_Step = 16,
299 .CCRes = 2,
300 .CP0_Status_rw_bitmask = 0x3678FFFF,
301 /* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */
302 .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV),
303 .SEGBITS = 40,
304 .PABITS = 36,
305 .insn_flags = CPU_MIPS3,
306 .mmu_type = MMU_TYPE_R4000,
307 },
308 {
309 .name = "VR5432",
310 .CP0_PRid = 0x00005400,
311 /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
312 .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
313 .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
314 .SYNCI_Step = 16,
315 .CCRes = 2,
316 .CP0_Status_rw_bitmask = 0x3678FFFF,
317 /* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */
318 .CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV),
319 .SEGBITS = 40,
320 .PABITS = 32,
321 .insn_flags = CPU_VR54XX,
322 .mmu_type = MMU_TYPE_R4000,
323 },
324 {
325 .name = "5Kc",
326 .CP0_PRid = 0x00018100,
327 .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
328 (MMU_TYPE_R4000 << CP0C0_MT),
329 .CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) |
330 (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
331 (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
332 (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
333 .CP0_Config2 = MIPS_CONFIG2,
334 .CP0_Config3 = MIPS_CONFIG3,
335 .SYNCI_Step = 32,
336 .CCRes = 2,
337 .CP0_Status_rw_bitmask = 0x32F8FFFF,
338 .SEGBITS = 42,
339 .PABITS = 36,
340 .insn_flags = CPU_MIPS64,
341 .mmu_type = MMU_TYPE_R4000,
342 },
343 {
344 .name = "5Kf",
345 .CP0_PRid = 0x00018100,
346 .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
347 (MMU_TYPE_R4000 << CP0C0_MT),
348 .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) |
349 (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
350 (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
351 (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
352 .CP0_Config2 = MIPS_CONFIG2,
353 .CP0_Config3 = MIPS_CONFIG3,
354 .SYNCI_Step = 32,
355 .CCRes = 2,
356 .CP0_Status_rw_bitmask = 0x36F8FFFF,
357 /* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */
358 .CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) |
359 (0x81 << FCR0_PRID) | (0x0 << FCR0_REV),
360 .SEGBITS = 42,
361 .PABITS = 36,
362 .insn_flags = CPU_MIPS64,
363 .mmu_type = MMU_TYPE_R4000,
364 },
365 {
366 .name = "20Kc",
367 /* We emulate a later version of the 20Kc, earlier ones had a broken
368 WAIT instruction. */
369 .CP0_PRid = 0x000182a0,
370 .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
371 (MMU_TYPE_R4000 << CP0C0_MT) | (1 << CP0C0_VI),
372 .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (47 << CP0C1_MMU) |
373 (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
374 (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
375 (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
376 .CP0_Config2 = MIPS_CONFIG2,
377 .CP0_Config3 = MIPS_CONFIG3,
378 .SYNCI_Step = 32,
379 .CCRes = 1,
380 .CP0_Status_rw_bitmask = 0x36FBFFFF,
381 /* The 20Kc has F64 / L / W but doesn't use the fcr0 bits. */
382 .CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) |
383 (1 << FCR0_D) | (1 << FCR0_S) |
384 (0x82 << FCR0_PRID) | (0x0 << FCR0_REV),
385 .SEGBITS = 40,
386 .PABITS = 36,
387 .insn_flags = CPU_MIPS64 | ASE_MIPS3D,
388 .mmu_type = MMU_TYPE_R4000,
389 },
390 {
391 /* A generic CPU providing MIPS64 Release 2 features.
392 FIXME: Eventually this should be replaced by a real CPU model. */
393 .name = "MIPS64R2-generic",
394 .CP0_PRid = 0x00010000,
395 .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
396 (MMU_TYPE_R4000 << CP0C0_MT),
397 .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
398 (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
399 (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
400 (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
401 .CP0_Config2 = MIPS_CONFIG2,
402 .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA),
403 .SYNCI_Step = 32,
404 .CCRes = 2,
405 .CP0_Status_rw_bitmask = 0x36FBFFFF,
406 .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
407 (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
408 (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
409 .SEGBITS = 42,
410 /* The architectural limit is 59, but we have hardcoded 36 bit
411 in some places...
412 .PABITS = 59, */ /* the architectural limit */
413 .PABITS = 36,
414 .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
415 .mmu_type = MMU_TYPE_R4000,
416 },
417 #endif
418 };
419
420 static const mips_def_t *cpu_mips_find_by_name (const char *name)
421 {
422 int i;
423
424 for (i = 0; i < sizeof(mips_defs) / sizeof(mips_defs[0]); i++) {
425 if (strcasecmp(name, mips_defs[i].name) == 0) {
426 return &mips_defs[i];
427 }
428 }
429 return NULL;
430 }
431
432 void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
433 {
434 int i;
435
436 for (i = 0; i < sizeof(mips_defs) / sizeof(mips_defs[0]); i++) {
437 (*cpu_fprintf)(f, "MIPS '%s'\n",
438 mips_defs[i].name);
439 }
440 }
441
442 #ifndef CONFIG_USER_ONLY
443 static void no_mmu_init (CPUMIPSState *env, const mips_def_t *def)
444 {
445 env->tlb->nb_tlb = 1;
446 env->tlb->map_address = &no_mmu_map_address;
447 }
448
449 static void fixed_mmu_init (CPUMIPSState *env, const mips_def_t *def)
450 {
451 env->tlb->nb_tlb = 1;
452 env->tlb->map_address = &fixed_mmu_map_address;
453 }
454
455 static void r4k_mmu_init (CPUMIPSState *env, const mips_def_t *def)
456 {
457 env->tlb->nb_tlb = 1 + ((def->CP0_Config1 >> CP0C1_MMU) & 63);
458 env->tlb->map_address = &r4k_map_address;
459 env->tlb->do_tlbwi = r4k_do_tlbwi;
460 env->tlb->do_tlbwr = r4k_do_tlbwr;
461 env->tlb->do_tlbp = r4k_do_tlbp;
462 env->tlb->do_tlbr = r4k_do_tlbr;
463 }
464
465 static void mmu_init (CPUMIPSState *env, const mips_def_t *def)
466 {
467 env->tlb = qemu_mallocz(sizeof(CPUMIPSTLBContext));
468
469 switch (def->mmu_type) {
470 case MMU_TYPE_NONE:
471 no_mmu_init(env, def);
472 break;
473 case MMU_TYPE_R4000:
474 r4k_mmu_init(env, def);
475 break;
476 case MMU_TYPE_FMT:
477 fixed_mmu_init(env, def);
478 break;
479 case MMU_TYPE_R3000:
480 case MMU_TYPE_R6000:
481 case MMU_TYPE_R8000:
482 default:
483 cpu_abort(env, "MMU type not supported\n");
484 }
485 env->CP0_Random = env->tlb->nb_tlb - 1;
486 env->tlb->tlb_in_use = env->tlb->nb_tlb;
487 }
488 #endif /* CONFIG_USER_ONLY */
489
490 static void fpu_init (CPUMIPSState *env, const mips_def_t *def)
491 {
492 int i;
493
494 for (i = 0; i < MIPS_FPU_MAX; i++)
495 env->fpus[i].fcr0 = def->CP1_fcr0;
496
497 memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu));
498 if (env->user_mode_only) {
499 if (env->CP0_Config1 & (1 << CP0C1_FP))
500 env->hflags |= MIPS_HFLAG_FPU;
501 #ifdef TARGET_MIPS64
502 if (env->active_fpu.fcr0 & (1 << FCR0_F64))
503 env->hflags |= MIPS_HFLAG_F64;
504 #endif
505 }
506 }
507
508 static void mvp_init (CPUMIPSState *env, const mips_def_t *def)
509 {
510 env->mvp = qemu_mallocz(sizeof(CPUMIPSMVPContext));
511
512 /* MVPConf1 implemented, TLB sharable, no gating storage support,
513 programmable cache partitioning implemented, number of allocatable
514 and sharable TLB entries, MVP has allocatable TCs, 2 VPEs
515 implemented, 5 TCs implemented. */
516 env->mvp->CP0_MVPConf0 = (1 << CP0MVPC0_M) | (1 << CP0MVPC0_TLBS) |
517 (0 << CP0MVPC0_GS) | (1 << CP0MVPC0_PCP) |
518 // TODO: actually do 2 VPEs.
519 // (1 << CP0MVPC0_TCA) | (0x1 << CP0MVPC0_PVPE) |
520 // (0x04 << CP0MVPC0_PTC);
521 (1 << CP0MVPC0_TCA) | (0x0 << CP0MVPC0_PVPE) |
522 (0x04 << CP0MVPC0_PTC);
523 /* Usermode has no TLB support */
524 if (!env->user_mode_only)
525 env->mvp->CP0_MVPConf0 |= (env->tlb->nb_tlb << CP0MVPC0_PTLBE);
526
527 /* Allocatable CP1 have media extensions, allocatable CP1 have FP support,
528 no UDI implemented, no CP2 implemented, 1 CP1 implemented. */
529 env->mvp->CP0_MVPConf1 = (1 << CP0MVPC1_CIM) | (1 << CP0MVPC1_CIF) |
530 (0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) |
531 (0x1 << CP0MVPC1_PCP1);
532 }
533
534 static int cpu_mips_register (CPUMIPSState *env, const mips_def_t *def)
535 {
536 env->CP0_PRid = def->CP0_PRid;
537 env->CP0_Config0 = def->CP0_Config0;
538 #ifdef TARGET_WORDS_BIGENDIAN
539 env->CP0_Config0 |= (1 << CP0C0_BE);
540 #endif
541 env->CP0_Config1 = def->CP0_Config1;
542 env->CP0_Config2 = def->CP0_Config2;
543 env->CP0_Config3 = def->CP0_Config3;
544 env->CP0_Config6 = def->CP0_Config6;
545 env->CP0_Config7 = def->CP0_Config7;
546 env->SYNCI_Step = def->SYNCI_Step;
547 env->CCRes = def->CCRes;
548 env->CP0_Status_rw_bitmask = def->CP0_Status_rw_bitmask;
549 env->CP0_TCStatus_rw_bitmask = def->CP0_TCStatus_rw_bitmask;
550 env->CP0_SRSCtl = def->CP0_SRSCtl;
551 env->current_tc = 0;
552 env->SEGBITS = def->SEGBITS;
553 env->SEGMask = (target_ulong)((1ULL << def->SEGBITS) - 1);
554 #if defined(TARGET_MIPS64)
555 if (def->insn_flags & ISA_MIPS3) {
556 env->hflags |= MIPS_HFLAG_64;
557 env->SEGMask |= 3ULL << 62;
558 }
559 #endif
560 env->PABITS = def->PABITS;
561 env->PAMask = (target_ulong)((1ULL << def->PABITS) - 1);
562 env->CP0_SRSConf0_rw_bitmask = def->CP0_SRSConf0_rw_bitmask;
563 env->CP0_SRSConf0 = def->CP0_SRSConf0;
564 env->CP0_SRSConf1_rw_bitmask = def->CP0_SRSConf1_rw_bitmask;
565 env->CP0_SRSConf1 = def->CP0_SRSConf1;
566 env->CP0_SRSConf2_rw_bitmask = def->CP0_SRSConf2_rw_bitmask;
567 env->CP0_SRSConf2 = def->CP0_SRSConf2;
568 env->CP0_SRSConf3_rw_bitmask = def->CP0_SRSConf3_rw_bitmask;
569 env->CP0_SRSConf3 = def->CP0_SRSConf3;
570 env->CP0_SRSConf4_rw_bitmask = def->CP0_SRSConf4_rw_bitmask;
571 env->CP0_SRSConf4 = def->CP0_SRSConf4;
572 env->insn_flags = def->insn_flags;
573
574 #ifndef CONFIG_USER_ONLY
575 if (!env->user_mode_only)
576 mmu_init(env, def);
577 #endif
578 fpu_init(env, def);
579 mvp_init(env, def);
580 return 0;
581 }
jz4740 based target emulation