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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle | |
7 | * Copyright (C) 2000 Silicon Graphics, Inc. | |
8 | * Modified for further R[236]000 support by Paul M. Antoine, 1996. | |
9 | * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com | |
a3692020 | 10 | * Copyright (C) 2000, 07 MIPS Technologies, Inc. |
4194318c | 11 | * Copyright (C) 2003, 2004 Maciej W. Rozycki |
1da177e4 LT |
12 | */ |
13 | #ifndef _ASM_MIPSREGS_H | |
14 | #define _ASM_MIPSREGS_H | |
15 | ||
1da177e4 LT |
16 | #include <linux/linkage.h> |
17 | #include <asm/hazards.h> | |
9267a30d | 18 | #include <asm/war.h> |
1da177e4 LT |
19 | |
20 | /* | |
21 | * The following macros are especially useful for __asm__ | |
22 | * inline assembler. | |
23 | */ | |
24 | #ifndef __STR | |
25 | #define __STR(x) #x | |
26 | #endif | |
27 | #ifndef STR | |
28 | #define STR(x) __STR(x) | |
29 | #endif | |
30 | ||
31 | /* | |
32 | * Configure language | |
33 | */ | |
34 | #ifdef __ASSEMBLY__ | |
35 | #define _ULCAST_ | |
36 | #else | |
37 | #define _ULCAST_ (unsigned long) | |
38 | #endif | |
39 | ||
40 | /* | |
41 | * Coprocessor 0 register names | |
42 | */ | |
43 | #define CP0_INDEX $0 | |
44 | #define CP0_RANDOM $1 | |
45 | #define CP0_ENTRYLO0 $2 | |
46 | #define CP0_ENTRYLO1 $3 | |
47 | #define CP0_CONF $3 | |
48 | #define CP0_CONTEXT $4 | |
49 | #define CP0_PAGEMASK $5 | |
50 | #define CP0_WIRED $6 | |
51 | #define CP0_INFO $7 | |
52 | #define CP0_BADVADDR $8 | |
53 | #define CP0_COUNT $9 | |
54 | #define CP0_ENTRYHI $10 | |
55 | #define CP0_COMPARE $11 | |
56 | #define CP0_STATUS $12 | |
57 | #define CP0_CAUSE $13 | |
58 | #define CP0_EPC $14 | |
59 | #define CP0_PRID $15 | |
60 | #define CP0_CONFIG $16 | |
61 | #define CP0_LLADDR $17 | |
62 | #define CP0_WATCHLO $18 | |
63 | #define CP0_WATCHHI $19 | |
64 | #define CP0_XCONTEXT $20 | |
65 | #define CP0_FRAMEMASK $21 | |
66 | #define CP0_DIAGNOSTIC $22 | |
67 | #define CP0_DEBUG $23 | |
68 | #define CP0_DEPC $24 | |
69 | #define CP0_PERFORMANCE $25 | |
70 | #define CP0_ECC $26 | |
71 | #define CP0_CACHEERR $27 | |
72 | #define CP0_TAGLO $28 | |
73 | #define CP0_TAGHI $29 | |
74 | #define CP0_ERROREPC $30 | |
75 | #define CP0_DESAVE $31 | |
76 | ||
77 | /* | |
78 | * R4640/R4650 cp0 register names. These registers are listed | |
79 | * here only for completeness; without MMU these CPUs are not useable | |
80 | * by Linux. A future ELKS port might take make Linux run on them | |
81 | * though ... | |
82 | */ | |
83 | #define CP0_IBASE $0 | |
84 | #define CP0_IBOUND $1 | |
85 | #define CP0_DBASE $2 | |
86 | #define CP0_DBOUND $3 | |
87 | #define CP0_CALG $17 | |
88 | #define CP0_IWATCH $18 | |
89 | #define CP0_DWATCH $19 | |
90 | ||
91 | /* | |
92 | * Coprocessor 0 Set 1 register names | |
93 | */ | |
94 | #define CP0_S1_DERRADDR0 $26 | |
95 | #define CP0_S1_DERRADDR1 $27 | |
96 | #define CP0_S1_INTCONTROL $20 | |
97 | ||
7a0fc58c RB |
98 | /* |
99 | * Coprocessor 0 Set 2 register names | |
100 | */ | |
101 | #define CP0_S2_SRSCTL $12 /* MIPSR2 */ | |
102 | ||
103 | /* | |
104 | * Coprocessor 0 Set 3 register names | |
105 | */ | |
106 | #define CP0_S3_SRSMAP $12 /* MIPSR2 */ | |
107 | ||
1da177e4 LT |
108 | /* |
109 | * TX39 Series | |
110 | */ | |
111 | #define CP0_TX39_CACHE $7 | |
112 | ||
113 | /* | |
114 | * Coprocessor 1 (FPU) register names | |
115 | */ | |
116 | #define CP1_REVISION $0 | |
117 | #define CP1_STATUS $31 | |
118 | ||
119 | /* | |
120 | * FPU Status Register Values | |
121 | */ | |
122 | /* | |
123 | * Status Register Values | |
124 | */ | |
125 | ||
126 | #define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */ | |
127 | #define FPU_CSR_COND 0x00800000 /* $fcc0 */ | |
128 | #define FPU_CSR_COND0 0x00800000 /* $fcc0 */ | |
129 | #define FPU_CSR_COND1 0x02000000 /* $fcc1 */ | |
130 | #define FPU_CSR_COND2 0x04000000 /* $fcc2 */ | |
131 | #define FPU_CSR_COND3 0x08000000 /* $fcc3 */ | |
132 | #define FPU_CSR_COND4 0x10000000 /* $fcc4 */ | |
133 | #define FPU_CSR_COND5 0x20000000 /* $fcc5 */ | |
134 | #define FPU_CSR_COND6 0x40000000 /* $fcc6 */ | |
135 | #define FPU_CSR_COND7 0x80000000 /* $fcc7 */ | |
136 | ||
137 | /* | |
138 | * X the exception cause indicator | |
139 | * E the exception enable | |
140 | * S the sticky/flag bit | |
141 | */ | |
142 | #define FPU_CSR_ALL_X 0x0003f000 | |
143 | #define FPU_CSR_UNI_X 0x00020000 | |
144 | #define FPU_CSR_INV_X 0x00010000 | |
145 | #define FPU_CSR_DIV_X 0x00008000 | |
146 | #define FPU_CSR_OVF_X 0x00004000 | |
147 | #define FPU_CSR_UDF_X 0x00002000 | |
148 | #define FPU_CSR_INE_X 0x00001000 | |
149 | ||
150 | #define FPU_CSR_ALL_E 0x00000f80 | |
151 | #define FPU_CSR_INV_E 0x00000800 | |
152 | #define FPU_CSR_DIV_E 0x00000400 | |
153 | #define FPU_CSR_OVF_E 0x00000200 | |
154 | #define FPU_CSR_UDF_E 0x00000100 | |
155 | #define FPU_CSR_INE_E 0x00000080 | |
156 | ||
157 | #define FPU_CSR_ALL_S 0x0000007c | |
158 | #define FPU_CSR_INV_S 0x00000040 | |
159 | #define FPU_CSR_DIV_S 0x00000020 | |
160 | #define FPU_CSR_OVF_S 0x00000010 | |
161 | #define FPU_CSR_UDF_S 0x00000008 | |
162 | #define FPU_CSR_INE_S 0x00000004 | |
163 | ||
164 | /* rounding mode */ | |
165 | #define FPU_CSR_RN 0x0 /* nearest */ | |
166 | #define FPU_CSR_RZ 0x1 /* towards zero */ | |
167 | #define FPU_CSR_RU 0x2 /* towards +Infinity */ | |
168 | #define FPU_CSR_RD 0x3 /* towards -Infinity */ | |
169 | ||
170 | ||
171 | /* | |
172 | * Values for PageMask register | |
173 | */ | |
174 | #ifdef CONFIG_CPU_VR41XX | |
175 | ||
176 | /* Why doesn't stupidity hurt ... */ | |
177 | ||
178 | #define PM_1K 0x00000000 | |
179 | #define PM_4K 0x00001800 | |
180 | #define PM_16K 0x00007800 | |
181 | #define PM_64K 0x0001f800 | |
182 | #define PM_256K 0x0007f800 | |
183 | ||
184 | #else | |
185 | ||
186 | #define PM_4K 0x00000000 | |
187 | #define PM_16K 0x00006000 | |
188 | #define PM_64K 0x0001e000 | |
189 | #define PM_256K 0x0007e000 | |
190 | #define PM_1M 0x001fe000 | |
191 | #define PM_4M 0x007fe000 | |
192 | #define PM_16M 0x01ffe000 | |
193 | #define PM_64M 0x07ffe000 | |
194 | #define PM_256M 0x1fffe000 | |
542c1020 | 195 | #define PM_1G 0x7fffe000 |
1da177e4 LT |
196 | |
197 | #endif | |
198 | ||
199 | /* | |
200 | * Default page size for a given kernel configuration | |
201 | */ | |
202 | #ifdef CONFIG_PAGE_SIZE_4KB | |
203 | #define PM_DEFAULT_MASK PM_4K | |
204 | #elif defined(CONFIG_PAGE_SIZE_16KB) | |
205 | #define PM_DEFAULT_MASK PM_16K | |
206 | #elif defined(CONFIG_PAGE_SIZE_64KB) | |
207 | #define PM_DEFAULT_MASK PM_64K | |
208 | #else | |
209 | #error Bad page size configuration! | |
210 | #endif | |
211 | ||
212 | ||
213 | /* | |
214 | * Values used for computation of new tlb entries | |
215 | */ | |
216 | #define PL_4K 12 | |
217 | #define PL_16K 14 | |
218 | #define PL_64K 16 | |
219 | #define PL_256K 18 | |
220 | #define PL_1M 20 | |
221 | #define PL_4M 22 | |
222 | #define PL_16M 24 | |
223 | #define PL_64M 26 | |
224 | #define PL_256M 28 | |
225 | ||
226 | /* | |
227 | * R4x00 interrupt enable / cause bits | |
228 | */ | |
229 | #define IE_SW0 (_ULCAST_(1) << 8) | |
230 | #define IE_SW1 (_ULCAST_(1) << 9) | |
231 | #define IE_IRQ0 (_ULCAST_(1) << 10) | |
232 | #define IE_IRQ1 (_ULCAST_(1) << 11) | |
233 | #define IE_IRQ2 (_ULCAST_(1) << 12) | |
234 | #define IE_IRQ3 (_ULCAST_(1) << 13) | |
235 | #define IE_IRQ4 (_ULCAST_(1) << 14) | |
236 | #define IE_IRQ5 (_ULCAST_(1) << 15) | |
237 | ||
238 | /* | |
239 | * R4x00 interrupt cause bits | |
240 | */ | |
241 | #define C_SW0 (_ULCAST_(1) << 8) | |
242 | #define C_SW1 (_ULCAST_(1) << 9) | |
243 | #define C_IRQ0 (_ULCAST_(1) << 10) | |
244 | #define C_IRQ1 (_ULCAST_(1) << 11) | |
245 | #define C_IRQ2 (_ULCAST_(1) << 12) | |
246 | #define C_IRQ3 (_ULCAST_(1) << 13) | |
247 | #define C_IRQ4 (_ULCAST_(1) << 14) | |
248 | #define C_IRQ5 (_ULCAST_(1) << 15) | |
249 | ||
250 | /* | |
251 | * Bitfields in the R4xx0 cp0 status register | |
252 | */ | |
253 | #define ST0_IE 0x00000001 | |
254 | #define ST0_EXL 0x00000002 | |
255 | #define ST0_ERL 0x00000004 | |
256 | #define ST0_KSU 0x00000018 | |
257 | # define KSU_USER 0x00000010 | |
258 | # define KSU_SUPERVISOR 0x00000008 | |
259 | # define KSU_KERNEL 0x00000000 | |
260 | #define ST0_UX 0x00000020 | |
261 | #define ST0_SX 0x00000040 | |
262 | #define ST0_KX 0x00000080 | |
263 | #define ST0_DE 0x00010000 | |
264 | #define ST0_CE 0x00020000 | |
265 | ||
266 | /* | |
267 | * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate | |
268 | * cacheops in userspace. This bit exists only on RM7000 and RM9000 | |
269 | * processors. | |
270 | */ | |
271 | #define ST0_CO 0x08000000 | |
272 | ||
273 | /* | |
274 | * Bitfields in the R[23]000 cp0 status register. | |
275 | */ | |
276 | #define ST0_IEC 0x00000001 | |
277 | #define ST0_KUC 0x00000002 | |
278 | #define ST0_IEP 0x00000004 | |
279 | #define ST0_KUP 0x00000008 | |
280 | #define ST0_IEO 0x00000010 | |
281 | #define ST0_KUO 0x00000020 | |
282 | /* bits 6 & 7 are reserved on R[23]000 */ | |
283 | #define ST0_ISC 0x00010000 | |
284 | #define ST0_SWC 0x00020000 | |
285 | #define ST0_CM 0x00080000 | |
286 | ||
287 | /* | |
288 | * Bits specific to the R4640/R4650 | |
289 | */ | |
290 | #define ST0_UM (_ULCAST_(1) << 4) | |
291 | #define ST0_IL (_ULCAST_(1) << 23) | |
292 | #define ST0_DL (_ULCAST_(1) << 24) | |
293 | ||
e50c0a8f | 294 | /* |
3301edcb | 295 | * Enable the MIPS MDMX and DSP ASEs |
e50c0a8f RB |
296 | */ |
297 | #define ST0_MX 0x01000000 | |
298 | ||
1da177e4 LT |
299 | /* |
300 | * Bitfields in the TX39 family CP0 Configuration Register 3 | |
301 | */ | |
302 | #define TX39_CONF_ICS_SHIFT 19 | |
303 | #define TX39_CONF_ICS_MASK 0x00380000 | |
304 | #define TX39_CONF_ICS_1KB 0x00000000 | |
305 | #define TX39_CONF_ICS_2KB 0x00080000 | |
306 | #define TX39_CONF_ICS_4KB 0x00100000 | |
307 | #define TX39_CONF_ICS_8KB 0x00180000 | |
308 | #define TX39_CONF_ICS_16KB 0x00200000 | |
309 | ||
310 | #define TX39_CONF_DCS_SHIFT 16 | |
311 | #define TX39_CONF_DCS_MASK 0x00070000 | |
312 | #define TX39_CONF_DCS_1KB 0x00000000 | |
313 | #define TX39_CONF_DCS_2KB 0x00010000 | |
314 | #define TX39_CONF_DCS_4KB 0x00020000 | |
315 | #define TX39_CONF_DCS_8KB 0x00030000 | |
316 | #define TX39_CONF_DCS_16KB 0x00040000 | |
317 | ||
318 | #define TX39_CONF_CWFON 0x00004000 | |
319 | #define TX39_CONF_WBON 0x00002000 | |
320 | #define TX39_CONF_RF_SHIFT 10 | |
321 | #define TX39_CONF_RF_MASK 0x00000c00 | |
322 | #define TX39_CONF_DOZE 0x00000200 | |
323 | #define TX39_CONF_HALT 0x00000100 | |
324 | #define TX39_CONF_LOCK 0x00000080 | |
325 | #define TX39_CONF_ICE 0x00000020 | |
326 | #define TX39_CONF_DCE 0x00000010 | |
327 | #define TX39_CONF_IRSIZE_SHIFT 2 | |
328 | #define TX39_CONF_IRSIZE_MASK 0x0000000c | |
329 | #define TX39_CONF_DRSIZE_SHIFT 0 | |
330 | #define TX39_CONF_DRSIZE_MASK 0x00000003 | |
331 | ||
332 | /* | |
333 | * Status register bits available in all MIPS CPUs. | |
334 | */ | |
335 | #define ST0_IM 0x0000ff00 | |
336 | #define STATUSB_IP0 8 | |
337 | #define STATUSF_IP0 (_ULCAST_(1) << 8) | |
338 | #define STATUSB_IP1 9 | |
339 | #define STATUSF_IP1 (_ULCAST_(1) << 9) | |
340 | #define STATUSB_IP2 10 | |
341 | #define STATUSF_IP2 (_ULCAST_(1) << 10) | |
342 | #define STATUSB_IP3 11 | |
343 | #define STATUSF_IP3 (_ULCAST_(1) << 11) | |
344 | #define STATUSB_IP4 12 | |
345 | #define STATUSF_IP4 (_ULCAST_(1) << 12) | |
346 | #define STATUSB_IP5 13 | |
347 | #define STATUSF_IP5 (_ULCAST_(1) << 13) | |
348 | #define STATUSB_IP6 14 | |
349 | #define STATUSF_IP6 (_ULCAST_(1) << 14) | |
350 | #define STATUSB_IP7 15 | |
351 | #define STATUSF_IP7 (_ULCAST_(1) << 15) | |
352 | #define STATUSB_IP8 0 | |
353 | #define STATUSF_IP8 (_ULCAST_(1) << 0) | |
354 | #define STATUSB_IP9 1 | |
355 | #define STATUSF_IP9 (_ULCAST_(1) << 1) | |
356 | #define STATUSB_IP10 2 | |
357 | #define STATUSF_IP10 (_ULCAST_(1) << 2) | |
358 | #define STATUSB_IP11 3 | |
359 | #define STATUSF_IP11 (_ULCAST_(1) << 3) | |
360 | #define STATUSB_IP12 4 | |
361 | #define STATUSF_IP12 (_ULCAST_(1) << 4) | |
362 | #define STATUSB_IP13 5 | |
363 | #define STATUSF_IP13 (_ULCAST_(1) << 5) | |
364 | #define STATUSB_IP14 6 | |
365 | #define STATUSF_IP14 (_ULCAST_(1) << 6) | |
366 | #define STATUSB_IP15 7 | |
367 | #define STATUSF_IP15 (_ULCAST_(1) << 7) | |
368 | #define ST0_CH 0x00040000 | |
369 | #define ST0_SR 0x00100000 | |
370 | #define ST0_TS 0x00200000 | |
371 | #define ST0_BEV 0x00400000 | |
372 | #define ST0_RE 0x02000000 | |
373 | #define ST0_FR 0x04000000 | |
374 | #define ST0_CU 0xf0000000 | |
375 | #define ST0_CU0 0x10000000 | |
376 | #define ST0_CU1 0x20000000 | |
377 | #define ST0_CU2 0x40000000 | |
378 | #define ST0_CU3 0x80000000 | |
379 | #define ST0_XX 0x80000000 /* MIPS IV naming */ | |
380 | ||
381 | /* | |
382 | * Bitfields and bit numbers in the coprocessor 0 cause register. | |
383 | * | |
384 | * Refer to your MIPS R4xx0 manual, chapter 5 for explanation. | |
385 | */ | |
386 | #define CAUSEB_EXCCODE 2 | |
387 | #define CAUSEF_EXCCODE (_ULCAST_(31) << 2) | |
388 | #define CAUSEB_IP 8 | |
389 | #define CAUSEF_IP (_ULCAST_(255) << 8) | |
390 | #define CAUSEB_IP0 8 | |
391 | #define CAUSEF_IP0 (_ULCAST_(1) << 8) | |
392 | #define CAUSEB_IP1 9 | |
393 | #define CAUSEF_IP1 (_ULCAST_(1) << 9) | |
394 | #define CAUSEB_IP2 10 | |
395 | #define CAUSEF_IP2 (_ULCAST_(1) << 10) | |
396 | #define CAUSEB_IP3 11 | |
397 | #define CAUSEF_IP3 (_ULCAST_(1) << 11) | |
398 | #define CAUSEB_IP4 12 | |
399 | #define CAUSEF_IP4 (_ULCAST_(1) << 12) | |
400 | #define CAUSEB_IP5 13 | |
401 | #define CAUSEF_IP5 (_ULCAST_(1) << 13) | |
402 | #define CAUSEB_IP6 14 | |
403 | #define CAUSEF_IP6 (_ULCAST_(1) << 14) | |
404 | #define CAUSEB_IP7 15 | |
405 | #define CAUSEF_IP7 (_ULCAST_(1) << 15) | |
406 | #define CAUSEB_IV 23 | |
407 | #define CAUSEF_IV (_ULCAST_(1) << 23) | |
408 | #define CAUSEB_CE 28 | |
409 | #define CAUSEF_CE (_ULCAST_(3) << 28) | |
410 | #define CAUSEB_BD 31 | |
411 | #define CAUSEF_BD (_ULCAST_(1) << 31) | |
412 | ||
413 | /* | |
414 | * Bits in the coprocessor 0 config register. | |
415 | */ | |
416 | /* Generic bits. */ | |
417 | #define CONF_CM_CACHABLE_NO_WA 0 | |
418 | #define CONF_CM_CACHABLE_WA 1 | |
419 | #define CONF_CM_UNCACHED 2 | |
420 | #define CONF_CM_CACHABLE_NONCOHERENT 3 | |
421 | #define CONF_CM_CACHABLE_CE 4 | |
422 | #define CONF_CM_CACHABLE_COW 5 | |
423 | #define CONF_CM_CACHABLE_CUW 6 | |
424 | #define CONF_CM_CACHABLE_ACCELERATED 7 | |
425 | #define CONF_CM_CMASK 7 | |
426 | #define CONF_BE (_ULCAST_(1) << 15) | |
427 | ||
428 | /* Bits common to various processors. */ | |
429 | #define CONF_CU (_ULCAST_(1) << 3) | |
430 | #define CONF_DB (_ULCAST_(1) << 4) | |
431 | #define CONF_IB (_ULCAST_(1) << 5) | |
432 | #define CONF_DC (_ULCAST_(7) << 6) | |
433 | #define CONF_IC (_ULCAST_(7) << 9) | |
434 | #define CONF_EB (_ULCAST_(1) << 13) | |
435 | #define CONF_EM (_ULCAST_(1) << 14) | |
436 | #define CONF_SM (_ULCAST_(1) << 16) | |
437 | #define CONF_SC (_ULCAST_(1) << 17) | |
438 | #define CONF_EW (_ULCAST_(3) << 18) | |
439 | #define CONF_EP (_ULCAST_(15)<< 24) | |
440 | #define CONF_EC (_ULCAST_(7) << 28) | |
441 | #define CONF_CM (_ULCAST_(1) << 31) | |
442 | ||
443 | /* Bits specific to the R4xx0. */ | |
444 | #define R4K_CONF_SW (_ULCAST_(1) << 20) | |
445 | #define R4K_CONF_SS (_ULCAST_(1) << 21) | |
e20368d5 | 446 | #define R4K_CONF_SB (_ULCAST_(3) << 22) |
1da177e4 LT |
447 | |
448 | /* Bits specific to the R5000. */ | |
449 | #define R5K_CONF_SE (_ULCAST_(1) << 12) | |
450 | #define R5K_CONF_SS (_ULCAST_(3) << 20) | |
451 | ||
ba5187db | 452 | /* Bits specific to the RM7000. */ |
c6ad7b7d MR |
453 | #define RM7K_CONF_SE (_ULCAST_(1) << 3) |
454 | #define RM7K_CONF_TE (_ULCAST_(1) << 12) | |
455 | #define RM7K_CONF_CLK (_ULCAST_(1) << 16) | |
456 | #define RM7K_CONF_TC (_ULCAST_(1) << 17) | |
457 | #define RM7K_CONF_SI (_ULCAST_(3) << 20) | |
458 | #define RM7K_CONF_SC (_ULCAST_(1) << 31) | |
ba5187db | 459 | |
1da177e4 LT |
460 | /* Bits specific to the R10000. */ |
461 | #define R10K_CONF_DN (_ULCAST_(3) << 3) | |
462 | #define R10K_CONF_CT (_ULCAST_(1) << 5) | |
463 | #define R10K_CONF_PE (_ULCAST_(1) << 6) | |
464 | #define R10K_CONF_PM (_ULCAST_(3) << 7) | |
465 | #define R10K_CONF_EC (_ULCAST_(15)<< 9) | |
466 | #define R10K_CONF_SB (_ULCAST_(1) << 13) | |
467 | #define R10K_CONF_SK (_ULCAST_(1) << 14) | |
468 | #define R10K_CONF_SS (_ULCAST_(7) << 16) | |
469 | #define R10K_CONF_SC (_ULCAST_(7) << 19) | |
470 | #define R10K_CONF_DC (_ULCAST_(7) << 26) | |
471 | #define R10K_CONF_IC (_ULCAST_(7) << 29) | |
472 | ||
473 | /* Bits specific to the VR41xx. */ | |
474 | #define VR41_CONF_CS (_ULCAST_(1) << 12) | |
2874fe55 | 475 | #define VR41_CONF_P4K (_ULCAST_(1) << 13) |
4e8ab361 | 476 | #define VR41_CONF_BP (_ULCAST_(1) << 16) |
1da177e4 LT |
477 | #define VR41_CONF_M16 (_ULCAST_(1) << 20) |
478 | #define VR41_CONF_AD (_ULCAST_(1) << 23) | |
479 | ||
480 | /* Bits specific to the R30xx. */ | |
481 | #define R30XX_CONF_FDM (_ULCAST_(1) << 19) | |
482 | #define R30XX_CONF_REV (_ULCAST_(1) << 22) | |
483 | #define R30XX_CONF_AC (_ULCAST_(1) << 23) | |
484 | #define R30XX_CONF_RF (_ULCAST_(1) << 24) | |
485 | #define R30XX_CONF_HALT (_ULCAST_(1) << 25) | |
486 | #define R30XX_CONF_FPINT (_ULCAST_(7) << 26) | |
487 | #define R30XX_CONF_DBR (_ULCAST_(1) << 29) | |
488 | #define R30XX_CONF_SB (_ULCAST_(1) << 30) | |
489 | #define R30XX_CONF_LOCK (_ULCAST_(1) << 31) | |
490 | ||
491 | /* Bits specific to the TX49. */ | |
492 | #define TX49_CONF_DC (_ULCAST_(1) << 16) | |
493 | #define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */ | |
494 | #define TX49_CONF_HALT (_ULCAST_(1) << 18) | |
495 | #define TX49_CONF_CWFON (_ULCAST_(1) << 27) | |
496 | ||
497 | /* Bits specific to the MIPS32/64 PRA. */ | |
498 | #define MIPS_CONF_MT (_ULCAST_(7) << 7) | |
499 | #define MIPS_CONF_AR (_ULCAST_(7) << 10) | |
500 | #define MIPS_CONF_AT (_ULCAST_(3) << 13) | |
501 | #define MIPS_CONF_M (_ULCAST_(1) << 31) | |
502 | ||
4194318c RB |
503 | /* |
504 | * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above. | |
505 | */ | |
506 | #define MIPS_CONF1_FP (_ULCAST_(1) << 0) | |
507 | #define MIPS_CONF1_EP (_ULCAST_(1) << 1) | |
508 | #define MIPS_CONF1_CA (_ULCAST_(1) << 2) | |
509 | #define MIPS_CONF1_WR (_ULCAST_(1) << 3) | |
510 | #define MIPS_CONF1_PC (_ULCAST_(1) << 4) | |
511 | #define MIPS_CONF1_MD (_ULCAST_(1) << 5) | |
512 | #define MIPS_CONF1_C2 (_ULCAST_(1) << 6) | |
513 | #define MIPS_CONF1_DA (_ULCAST_(7) << 7) | |
514 | #define MIPS_CONF1_DL (_ULCAST_(7) << 10) | |
515 | #define MIPS_CONF1_DS (_ULCAST_(7) << 13) | |
516 | #define MIPS_CONF1_IA (_ULCAST_(7) << 16) | |
517 | #define MIPS_CONF1_IL (_ULCAST_(7) << 19) | |
518 | #define MIPS_CONF1_IS (_ULCAST_(7) << 22) | |
519 | #define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25) | |
520 | ||
521 | #define MIPS_CONF2_SA (_ULCAST_(15)<< 0) | |
522 | #define MIPS_CONF2_SL (_ULCAST_(15)<< 4) | |
523 | #define MIPS_CONF2_SS (_ULCAST_(15)<< 8) | |
524 | #define MIPS_CONF2_SU (_ULCAST_(15)<< 12) | |
525 | #define MIPS_CONF2_TA (_ULCAST_(15)<< 16) | |
526 | #define MIPS_CONF2_TL (_ULCAST_(15)<< 20) | |
527 | #define MIPS_CONF2_TS (_ULCAST_(15)<< 24) | |
528 | #define MIPS_CONF2_TU (_ULCAST_(7) << 28) | |
529 | ||
530 | #define MIPS_CONF3_TL (_ULCAST_(1) << 0) | |
531 | #define MIPS_CONF3_SM (_ULCAST_(1) << 1) | |
8f40611d | 532 | #define MIPS_CONF3_MT (_ULCAST_(1) << 2) |
4194318c RB |
533 | #define MIPS_CONF3_SP (_ULCAST_(1) << 4) |
534 | #define MIPS_CONF3_VINT (_ULCAST_(1) << 5) | |
535 | #define MIPS_CONF3_VEIC (_ULCAST_(1) << 6) | |
536 | #define MIPS_CONF3_LPA (_ULCAST_(1) << 7) | |
e50c0a8f | 537 | #define MIPS_CONF3_DSP (_ULCAST_(1) << 10) |
a3692020 | 538 | #define MIPS_CONF3_ULRI (_ULCAST_(1) << 13) |
4194318c | 539 | |
4b3e975e RB |
540 | #define MIPS_CONF7_WII (_ULCAST_(1) << 31) |
541 | ||
9267a30d MSJ |
542 | #define MIPS_CONF7_RPS (_ULCAST_(1) << 2) |
543 | ||
544 | ||
4194318c RB |
545 | /* |
546 | * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register. | |
547 | */ | |
548 | #define MIPS_FPIR_S (_ULCAST_(1) << 16) | |
549 | #define MIPS_FPIR_D (_ULCAST_(1) << 17) | |
550 | #define MIPS_FPIR_PS (_ULCAST_(1) << 18) | |
551 | #define MIPS_FPIR_3D (_ULCAST_(1) << 19) | |
552 | #define MIPS_FPIR_W (_ULCAST_(1) << 20) | |
553 | #define MIPS_FPIR_L (_ULCAST_(1) << 21) | |
554 | #define MIPS_FPIR_F64 (_ULCAST_(1) << 22) | |
555 | ||
1da177e4 LT |
556 | #ifndef __ASSEMBLY__ |
557 | ||
558 | /* | |
559 | * Functions to access the R10000 performance counters. These are basically | |
560 | * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit | |
561 | * performance counter number encoded into bits 1 ... 5 of the instruction. | |
562 | * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware | |
563 | * disassembler these will look like an access to sel 0 or 1. | |
564 | */ | |
565 | #define read_r10k_perf_cntr(counter) \ | |
566 | ({ \ | |
567 | unsigned int __res; \ | |
568 | __asm__ __volatile__( \ | |
569 | "mfpc\t%0, %1" \ | |
570 | : "=r" (__res) \ | |
571 | : "i" (counter)); \ | |
572 | \ | |
573 | __res; \ | |
574 | }) | |
575 | ||
576 | #define write_r10k_perf_cntr(counter,val) \ | |
577 | do { \ | |
578 | __asm__ __volatile__( \ | |
579 | "mtpc\t%0, %1" \ | |
580 | : \ | |
581 | : "r" (val), "i" (counter)); \ | |
582 | } while (0) | |
583 | ||
584 | #define read_r10k_perf_event(counter) \ | |
585 | ({ \ | |
586 | unsigned int __res; \ | |
587 | __asm__ __volatile__( \ | |
588 | "mfps\t%0, %1" \ | |
589 | : "=r" (__res) \ | |
590 | : "i" (counter)); \ | |
591 | \ | |
592 | __res; \ | |
593 | }) | |
594 | ||
595 | #define write_r10k_perf_cntl(counter,val) \ | |
596 | do { \ | |
597 | __asm__ __volatile__( \ | |
598 | "mtps\t%0, %1" \ | |
599 | : \ | |
600 | : "r" (val), "i" (counter)); \ | |
601 | } while (0) | |
602 | ||
603 | ||
604 | /* | |
605 | * Macros to access the system control coprocessor | |
606 | */ | |
607 | ||
608 | #define __read_32bit_c0_register(source, sel) \ | |
609 | ({ int __res; \ | |
610 | if (sel == 0) \ | |
611 | __asm__ __volatile__( \ | |
612 | "mfc0\t%0, " #source "\n\t" \ | |
613 | : "=r" (__res)); \ | |
614 | else \ | |
615 | __asm__ __volatile__( \ | |
616 | ".set\tmips32\n\t" \ | |
617 | "mfc0\t%0, " #source ", " #sel "\n\t" \ | |
618 | ".set\tmips0\n\t" \ | |
619 | : "=r" (__res)); \ | |
620 | __res; \ | |
621 | }) | |
622 | ||
623 | #define __read_64bit_c0_register(source, sel) \ | |
624 | ({ unsigned long long __res; \ | |
625 | if (sizeof(unsigned long) == 4) \ | |
626 | __res = __read_64bit_c0_split(source, sel); \ | |
627 | else if (sel == 0) \ | |
628 | __asm__ __volatile__( \ | |
629 | ".set\tmips3\n\t" \ | |
630 | "dmfc0\t%0, " #source "\n\t" \ | |
631 | ".set\tmips0" \ | |
632 | : "=r" (__res)); \ | |
633 | else \ | |
634 | __asm__ __volatile__( \ | |
635 | ".set\tmips64\n\t" \ | |
636 | "dmfc0\t%0, " #source ", " #sel "\n\t" \ | |
637 | ".set\tmips0" \ | |
638 | : "=r" (__res)); \ | |
639 | __res; \ | |
640 | }) | |
641 | ||
642 | #define __write_32bit_c0_register(register, sel, value) \ | |
643 | do { \ | |
644 | if (sel == 0) \ | |
645 | __asm__ __volatile__( \ | |
646 | "mtc0\t%z0, " #register "\n\t" \ | |
0952e290 | 647 | : : "Jr" ((unsigned int)(value))); \ |
1da177e4 LT |
648 | else \ |
649 | __asm__ __volatile__( \ | |
650 | ".set\tmips32\n\t" \ | |
651 | "mtc0\t%z0, " #register ", " #sel "\n\t" \ | |
652 | ".set\tmips0" \ | |
0952e290 | 653 | : : "Jr" ((unsigned int)(value))); \ |
1da177e4 LT |
654 | } while (0) |
655 | ||
656 | #define __write_64bit_c0_register(register, sel, value) \ | |
657 | do { \ | |
658 | if (sizeof(unsigned long) == 4) \ | |
659 | __write_64bit_c0_split(register, sel, value); \ | |
660 | else if (sel == 0) \ | |
661 | __asm__ __volatile__( \ | |
662 | ".set\tmips3\n\t" \ | |
663 | "dmtc0\t%z0, " #register "\n\t" \ | |
664 | ".set\tmips0" \ | |
665 | : : "Jr" (value)); \ | |
666 | else \ | |
667 | __asm__ __volatile__( \ | |
668 | ".set\tmips64\n\t" \ | |
669 | "dmtc0\t%z0, " #register ", " #sel "\n\t" \ | |
670 | ".set\tmips0" \ | |
671 | : : "Jr" (value)); \ | |
672 | } while (0) | |
673 | ||
674 | #define __read_ulong_c0_register(reg, sel) \ | |
675 | ((sizeof(unsigned long) == 4) ? \ | |
676 | (unsigned long) __read_32bit_c0_register(reg, sel) : \ | |
677 | (unsigned long) __read_64bit_c0_register(reg, sel)) | |
678 | ||
679 | #define __write_ulong_c0_register(reg, sel, val) \ | |
680 | do { \ | |
681 | if (sizeof(unsigned long) == 4) \ | |
682 | __write_32bit_c0_register(reg, sel, val); \ | |
683 | else \ | |
684 | __write_64bit_c0_register(reg, sel, val); \ | |
685 | } while (0) | |
686 | ||
687 | /* | |
688 | * On RM7000/RM9000 these are uses to access cop0 set 1 registers | |
689 | */ | |
690 | #define __read_32bit_c0_ctrl_register(source) \ | |
691 | ({ int __res; \ | |
692 | __asm__ __volatile__( \ | |
693 | "cfc0\t%0, " #source "\n\t" \ | |
694 | : "=r" (__res)); \ | |
695 | __res; \ | |
696 | }) | |
697 | ||
698 | #define __write_32bit_c0_ctrl_register(register, value) \ | |
699 | do { \ | |
700 | __asm__ __volatile__( \ | |
701 | "ctc0\t%z0, " #register "\n\t" \ | |
0952e290 | 702 | : : "Jr" ((unsigned int)(value))); \ |
1da177e4 LT |
703 | } while (0) |
704 | ||
705 | /* | |
706 | * These versions are only needed for systems with more than 38 bits of | |
707 | * physical address space running the 32-bit kernel. That's none atm :-) | |
708 | */ | |
709 | #define __read_64bit_c0_split(source, sel) \ | |
710 | ({ \ | |
87d43dd4 AN |
711 | unsigned long long __val; \ |
712 | unsigned long __flags; \ | |
1da177e4 | 713 | \ |
87d43dd4 | 714 | local_irq_save(__flags); \ |
1da177e4 LT |
715 | if (sel == 0) \ |
716 | __asm__ __volatile__( \ | |
717 | ".set\tmips64\n\t" \ | |
718 | "dmfc0\t%M0, " #source "\n\t" \ | |
719 | "dsll\t%L0, %M0, 32\n\t" \ | |
720 | "dsrl\t%M0, %M0, 32\n\t" \ | |
721 | "dsrl\t%L0, %L0, 32\n\t" \ | |
722 | ".set\tmips0" \ | |
87d43dd4 | 723 | : "=r" (__val)); \ |
1da177e4 LT |
724 | else \ |
725 | __asm__ __volatile__( \ | |
726 | ".set\tmips64\n\t" \ | |
727 | "dmfc0\t%M0, " #source ", " #sel "\n\t" \ | |
728 | "dsll\t%L0, %M0, 32\n\t" \ | |
729 | "dsrl\t%M0, %M0, 32\n\t" \ | |
730 | "dsrl\t%L0, %L0, 32\n\t" \ | |
731 | ".set\tmips0" \ | |
87d43dd4 AN |
732 | : "=r" (__val)); \ |
733 | local_irq_restore(__flags); \ | |
1da177e4 | 734 | \ |
87d43dd4 | 735 | __val; \ |
1da177e4 LT |
736 | }) |
737 | ||
738 | #define __write_64bit_c0_split(source, sel, val) \ | |
739 | do { \ | |
87d43dd4 | 740 | unsigned long __flags; \ |
1da177e4 | 741 | \ |
87d43dd4 | 742 | local_irq_save(__flags); \ |
1da177e4 LT |
743 | if (sel == 0) \ |
744 | __asm__ __volatile__( \ | |
745 | ".set\tmips64\n\t" \ | |
746 | "dsll\t%L0, %L0, 32\n\t" \ | |
747 | "dsrl\t%L0, %L0, 32\n\t" \ | |
748 | "dsll\t%M0, %M0, 32\n\t" \ | |
749 | "or\t%L0, %L0, %M0\n\t" \ | |
750 | "dmtc0\t%L0, " #source "\n\t" \ | |
751 | ".set\tmips0" \ | |
752 | : : "r" (val)); \ | |
753 | else \ | |
754 | __asm__ __volatile__( \ | |
755 | ".set\tmips64\n\t" \ | |
756 | "dsll\t%L0, %L0, 32\n\t" \ | |
757 | "dsrl\t%L0, %L0, 32\n\t" \ | |
758 | "dsll\t%M0, %M0, 32\n\t" \ | |
759 | "or\t%L0, %L0, %M0\n\t" \ | |
760 | "dmtc0\t%L0, " #source ", " #sel "\n\t" \ | |
761 | ".set\tmips0" \ | |
762 | : : "r" (val)); \ | |
87d43dd4 | 763 | local_irq_restore(__flags); \ |
1da177e4 LT |
764 | } while (0) |
765 | ||
766 | #define read_c0_index() __read_32bit_c0_register($0, 0) | |
767 | #define write_c0_index(val) __write_32bit_c0_register($0, 0, val) | |
768 | ||
272bace7 RB |
769 | #define read_c0_random() __read_32bit_c0_register($1, 0) |
770 | #define write_c0_random(val) __write_32bit_c0_register($1, 0, val) | |
771 | ||
1da177e4 LT |
772 | #define read_c0_entrylo0() __read_ulong_c0_register($2, 0) |
773 | #define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val) | |
774 | ||
775 | #define read_c0_entrylo1() __read_ulong_c0_register($3, 0) | |
776 | #define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val) | |
777 | ||
778 | #define read_c0_conf() __read_32bit_c0_register($3, 0) | |
779 | #define write_c0_conf(val) __write_32bit_c0_register($3, 0, val) | |
780 | ||
781 | #define read_c0_context() __read_ulong_c0_register($4, 0) | |
782 | #define write_c0_context(val) __write_ulong_c0_register($4, 0, val) | |
783 | ||
a3692020 RB |
784 | #define read_c0_userlocal() __read_ulong_c0_register($4, 2) |
785 | #define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val) | |
786 | ||
1da177e4 LT |
787 | #define read_c0_pagemask() __read_32bit_c0_register($5, 0) |
788 | #define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val) | |
789 | ||
790 | #define read_c0_wired() __read_32bit_c0_register($6, 0) | |
791 | #define write_c0_wired(val) __write_32bit_c0_register($6, 0, val) | |
792 | ||
793 | #define read_c0_info() __read_32bit_c0_register($7, 0) | |
794 | ||
795 | #define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */ | |
796 | #define write_c0_cache(val) __write_32bit_c0_register($7, 0, val) | |
797 | ||
15c4f67a RB |
798 | #define read_c0_badvaddr() __read_ulong_c0_register($8, 0) |
799 | #define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val) | |
800 | ||
1da177e4 LT |
801 | #define read_c0_count() __read_32bit_c0_register($9, 0) |
802 | #define write_c0_count(val) __write_32bit_c0_register($9, 0, val) | |
803 | ||
bdf21b18 PP |
804 | #define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */ |
805 | #define write_c0_count2(val) __write_32bit_c0_register($9, 6, val) | |
806 | ||
807 | #define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */ | |
808 | #define write_c0_count3(val) __write_32bit_c0_register($9, 7, val) | |
809 | ||
1da177e4 LT |
810 | #define read_c0_entryhi() __read_ulong_c0_register($10, 0) |
811 | #define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val) | |
812 | ||
813 | #define read_c0_compare() __read_32bit_c0_register($11, 0) | |
814 | #define write_c0_compare(val) __write_32bit_c0_register($11, 0, val) | |
815 | ||
bdf21b18 PP |
816 | #define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */ |
817 | #define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val) | |
818 | ||
819 | #define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */ | |
820 | #define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val) | |
821 | ||
1da177e4 | 822 | #define read_c0_status() __read_32bit_c0_register($12, 0) |
41c594ab RB |
823 | #ifdef CONFIG_MIPS_MT_SMTC |
824 | #define write_c0_status(val) \ | |
825 | do { \ | |
826 | __write_32bit_c0_register($12, 0, val); \ | |
827 | __ehb(); \ | |
828 | } while (0) | |
829 | #else | |
830 | /* | |
831 | * Legacy non-SMTC code, which may be hazardous | |
832 | * but which might not support EHB | |
833 | */ | |
1da177e4 | 834 | #define write_c0_status(val) __write_32bit_c0_register($12, 0, val) |
41c594ab | 835 | #endif /* CONFIG_MIPS_MT_SMTC */ |
1da177e4 LT |
836 | |
837 | #define read_c0_cause() __read_32bit_c0_register($13, 0) | |
838 | #define write_c0_cause(val) __write_32bit_c0_register($13, 0, val) | |
839 | ||
840 | #define read_c0_epc() __read_ulong_c0_register($14, 0) | |
841 | #define write_c0_epc(val) __write_ulong_c0_register($14, 0, val) | |
842 | ||
843 | #define read_c0_prid() __read_32bit_c0_register($15, 0) | |
844 | ||
845 | #define read_c0_config() __read_32bit_c0_register($16, 0) | |
846 | #define read_c0_config1() __read_32bit_c0_register($16, 1) | |
847 | #define read_c0_config2() __read_32bit_c0_register($16, 2) | |
848 | #define read_c0_config3() __read_32bit_c0_register($16, 3) | |
0efe2761 RB |
849 | #define read_c0_config4() __read_32bit_c0_register($16, 4) |
850 | #define read_c0_config5() __read_32bit_c0_register($16, 5) | |
851 | #define read_c0_config6() __read_32bit_c0_register($16, 6) | |
852 | #define read_c0_config7() __read_32bit_c0_register($16, 7) | |
1da177e4 LT |
853 | #define write_c0_config(val) __write_32bit_c0_register($16, 0, val) |
854 | #define write_c0_config1(val) __write_32bit_c0_register($16, 1, val) | |
855 | #define write_c0_config2(val) __write_32bit_c0_register($16, 2, val) | |
856 | #define write_c0_config3(val) __write_32bit_c0_register($16, 3, val) | |
0efe2761 RB |
857 | #define write_c0_config4(val) __write_32bit_c0_register($16, 4, val) |
858 | #define write_c0_config5(val) __write_32bit_c0_register($16, 5, val) | |
859 | #define write_c0_config6(val) __write_32bit_c0_register($16, 6, val) | |
860 | #define write_c0_config7(val) __write_32bit_c0_register($16, 7, val) | |
1da177e4 LT |
861 | |
862 | /* | |
863 | * The WatchLo register. There may be upto 8 of them. | |
864 | */ | |
865 | #define read_c0_watchlo0() __read_ulong_c0_register($18, 0) | |
866 | #define read_c0_watchlo1() __read_ulong_c0_register($18, 1) | |
867 | #define read_c0_watchlo2() __read_ulong_c0_register($18, 2) | |
868 | #define read_c0_watchlo3() __read_ulong_c0_register($18, 3) | |
869 | #define read_c0_watchlo4() __read_ulong_c0_register($18, 4) | |
870 | #define read_c0_watchlo5() __read_ulong_c0_register($18, 5) | |
871 | #define read_c0_watchlo6() __read_ulong_c0_register($18, 6) | |
872 | #define read_c0_watchlo7() __read_ulong_c0_register($18, 7) | |
873 | #define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val) | |
874 | #define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val) | |
875 | #define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val) | |
876 | #define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val) | |
877 | #define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val) | |
878 | #define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val) | |
879 | #define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val) | |
880 | #define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val) | |
881 | ||
882 | /* | |
883 | * The WatchHi register. There may be upto 8 of them. | |
884 | */ | |
885 | #define read_c0_watchhi0() __read_32bit_c0_register($19, 0) | |
886 | #define read_c0_watchhi1() __read_32bit_c0_register($19, 1) | |
887 | #define read_c0_watchhi2() __read_32bit_c0_register($19, 2) | |
888 | #define read_c0_watchhi3() __read_32bit_c0_register($19, 3) | |
889 | #define read_c0_watchhi4() __read_32bit_c0_register($19, 4) | |
890 | #define read_c0_watchhi5() __read_32bit_c0_register($19, 5) | |
891 | #define read_c0_watchhi6() __read_32bit_c0_register($19, 6) | |
892 | #define read_c0_watchhi7() __read_32bit_c0_register($19, 7) | |
893 | ||
894 | #define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val) | |
895 | #define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val) | |
896 | #define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val) | |
897 | #define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val) | |
898 | #define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val) | |
899 | #define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val) | |
900 | #define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val) | |
901 | #define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val) | |
902 | ||
903 | #define read_c0_xcontext() __read_ulong_c0_register($20, 0) | |
904 | #define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val) | |
905 | ||
906 | #define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20) | |
907 | #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val) | |
908 | ||
909 | #define read_c0_framemask() __read_32bit_c0_register($21, 0) | |
910 | #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val) | |
911 | ||
912 | /* RM9000 PerfControl performance counter control register */ | |
913 | #define read_c0_perfcontrol() __read_32bit_c0_register($22, 0) | |
914 | #define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val) | |
915 | ||
916 | #define read_c0_diag() __read_32bit_c0_register($22, 0) | |
917 | #define write_c0_diag(val) __write_32bit_c0_register($22, 0, val) | |
918 | ||
919 | #define read_c0_diag1() __read_32bit_c0_register($22, 1) | |
920 | #define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val) | |
921 | ||
922 | #define read_c0_diag2() __read_32bit_c0_register($22, 2) | |
923 | #define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val) | |
924 | ||
925 | #define read_c0_diag3() __read_32bit_c0_register($22, 3) | |
926 | #define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val) | |
927 | ||
928 | #define read_c0_diag4() __read_32bit_c0_register($22, 4) | |
929 | #define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val) | |
930 | ||
931 | #define read_c0_diag5() __read_32bit_c0_register($22, 5) | |
932 | #define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val) | |
933 | ||
934 | #define read_c0_debug() __read_32bit_c0_register($23, 0) | |
935 | #define write_c0_debug(val) __write_32bit_c0_register($23, 0, val) | |
936 | ||
937 | #define read_c0_depc() __read_ulong_c0_register($24, 0) | |
938 | #define write_c0_depc(val) __write_ulong_c0_register($24, 0, val) | |
939 | ||
940 | /* | |
941 | * MIPS32 / MIPS64 performance counters | |
942 | */ | |
943 | #define read_c0_perfctrl0() __read_32bit_c0_register($25, 0) | |
944 | #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val) | |
945 | #define read_c0_perfcntr0() __read_32bit_c0_register($25, 1) | |
946 | #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val) | |
947 | #define read_c0_perfctrl1() __read_32bit_c0_register($25, 2) | |
948 | #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val) | |
949 | #define read_c0_perfcntr1() __read_32bit_c0_register($25, 3) | |
950 | #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val) | |
951 | #define read_c0_perfctrl2() __read_32bit_c0_register($25, 4) | |
952 | #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val) | |
953 | #define read_c0_perfcntr2() __read_32bit_c0_register($25, 5) | |
954 | #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val) | |
955 | #define read_c0_perfctrl3() __read_32bit_c0_register($25, 6) | |
956 | #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val) | |
957 | #define read_c0_perfcntr3() __read_32bit_c0_register($25, 7) | |
958 | #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val) | |
959 | ||
960 | /* RM9000 PerfCount performance counter register */ | |
961 | #define read_c0_perfcount() __read_64bit_c0_register($25, 0) | |
962 | #define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val) | |
963 | ||
964 | #define read_c0_ecc() __read_32bit_c0_register($26, 0) | |
965 | #define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val) | |
966 | ||
967 | #define read_c0_derraddr0() __read_ulong_c0_register($26, 1) | |
968 | #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val) | |
969 | ||
970 | #define read_c0_cacheerr() __read_32bit_c0_register($27, 0) | |
971 | ||
972 | #define read_c0_derraddr1() __read_ulong_c0_register($27, 1) | |
973 | #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val) | |
974 | ||
975 | #define read_c0_taglo() __read_32bit_c0_register($28, 0) | |
976 | #define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val) | |
977 | ||
41c594ab RB |
978 | #define read_c0_dtaglo() __read_32bit_c0_register($28, 2) |
979 | #define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val) | |
980 | ||
1da177e4 LT |
981 | #define read_c0_taghi() __read_32bit_c0_register($29, 0) |
982 | #define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val) | |
983 | ||
984 | #define read_c0_errorepc() __read_ulong_c0_register($30, 0) | |
985 | #define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val) | |
986 | ||
7a0fc58c | 987 | /* MIPSR2 */ |
21a151d8 | 988 | #define read_c0_hwrena() __read_32bit_c0_register($7, 0) |
7a0fc58c RB |
989 | #define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val) |
990 | ||
991 | #define read_c0_intctl() __read_32bit_c0_register($12, 1) | |
992 | #define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val) | |
993 | ||
994 | #define read_c0_srsctl() __read_32bit_c0_register($12, 2) | |
995 | #define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val) | |
996 | ||
997 | #define read_c0_srsmap() __read_32bit_c0_register($12, 3) | |
998 | #define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val) | |
999 | ||
21a151d8 | 1000 | #define read_c0_ebase() __read_32bit_c0_register($15, 1) |
7a0fc58c RB |
1001 | #define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val) |
1002 | ||
ed918c2d DD |
1003 | |
1004 | /* Cavium OCTEON (cnMIPS) */ | |
1005 | #define read_c0_cvmcount() __read_ulong_c0_register($9, 6) | |
1006 | #define write_c0_cvmcount(val) __write_ulong_c0_register($9, 6, val) | |
1007 | ||
1008 | #define read_c0_cvmctl() __read_64bit_c0_register($9, 7) | |
1009 | #define write_c0_cvmctl(val) __write_64bit_c0_register($9, 7, val) | |
1010 | ||
1011 | #define read_c0_cvmmemctl() __read_64bit_c0_register($11, 7) | |
1012 | #define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val) | |
1013 | /* | |
1014 | * The cacheerr registers are not standardized. On OCTEON, they are | |
1015 | * 64 bits wide. | |
1016 | */ | |
1017 | #define read_octeon_c0_icacheerr() __read_64bit_c0_register($27, 0) | |
1018 | #define write_octeon_c0_icacheerr(val) __write_64bit_c0_register($27, 0, val) | |
1019 | ||
1020 | #define read_octeon_c0_dcacheerr() __read_64bit_c0_register($27, 1) | |
1021 | #define write_octeon_c0_dcacheerr(val) __write_64bit_c0_register($27, 1, val) | |
1022 | ||
1da177e4 LT |
1023 | /* |
1024 | * Macros to access the floating point coprocessor control registers | |
1025 | */ | |
1026 | #define read_32bit_cp1_register(source) \ | |
1027 | ({ int __res; \ | |
1028 | __asm__ __volatile__( \ | |
1029 | ".set\tpush\n\t" \ | |
1030 | ".set\treorder\n\t" \ | |
1031 | "cfc1\t%0,"STR(source)"\n\t" \ | |
1032 | ".set\tpop" \ | |
1033 | : "=r" (__res)); \ | |
1034 | __res;}) | |
1035 | ||
e50c0a8f RB |
1036 | #define rddsp(mask) \ |
1037 | ({ \ | |
1038 | unsigned int __res; \ | |
1039 | \ | |
1040 | __asm__ __volatile__( \ | |
1041 | " .set push \n" \ | |
1042 | " .set noat \n" \ | |
1043 | " # rddsp $1, %x1 \n" \ | |
1044 | " .word 0x7c000cb8 | (%x1 << 16) \n" \ | |
1045 | " move %0, $1 \n" \ | |
1046 | " .set pop \n" \ | |
1047 | : "=r" (__res) \ | |
1048 | : "i" (mask)); \ | |
1049 | __res; \ | |
1050 | }) | |
1051 | ||
1052 | #define wrdsp(val, mask) \ | |
1053 | do { \ | |
e50c0a8f RB |
1054 | __asm__ __volatile__( \ |
1055 | " .set push \n" \ | |
1056 | " .set noat \n" \ | |
1057 | " move $1, %0 \n" \ | |
1058 | " # wrdsp $1, %x1 \n" \ | |
26487957 | 1059 | " .word 0x7c2004f8 | (%x1 << 11) \n" \ |
e50c0a8f RB |
1060 | " .set pop \n" \ |
1061 | : \ | |
1062 | : "r" (val), "i" (mask)); \ | |
e50c0a8f RB |
1063 | } while (0) |
1064 | ||
1065 | #if 0 /* Need DSP ASE capable assembler ... */ | |
1066 | #define mflo0() ({ long mflo0; __asm__("mflo %0, $ac0" : "=r" (mflo0)); mflo0;}) | |
1067 | #define mflo1() ({ long mflo1; __asm__("mflo %0, $ac1" : "=r" (mflo1)); mflo1;}) | |
1068 | #define mflo2() ({ long mflo2; __asm__("mflo %0, $ac2" : "=r" (mflo2)); mflo2;}) | |
1069 | #define mflo3() ({ long mflo3; __asm__("mflo %0, $ac3" : "=r" (mflo3)); mflo3;}) | |
1070 | ||
1071 | #define mfhi0() ({ long mfhi0; __asm__("mfhi %0, $ac0" : "=r" (mfhi0)); mfhi0;}) | |
1072 | #define mfhi1() ({ long mfhi1; __asm__("mfhi %0, $ac1" : "=r" (mfhi1)); mfhi1;}) | |
1073 | #define mfhi2() ({ long mfhi2; __asm__("mfhi %0, $ac2" : "=r" (mfhi2)); mfhi2;}) | |
1074 | #define mfhi3() ({ long mfhi3; __asm__("mfhi %0, $ac3" : "=r" (mfhi3)); mfhi3;}) | |
1075 | ||
1076 | #define mtlo0(x) __asm__("mtlo %0, $ac0" ::"r" (x)) | |
1077 | #define mtlo1(x) __asm__("mtlo %0, $ac1" ::"r" (x)) | |
1078 | #define mtlo2(x) __asm__("mtlo %0, $ac2" ::"r" (x)) | |
1079 | #define mtlo3(x) __asm__("mtlo %0, $ac3" ::"r" (x)) | |
1080 | ||
1081 | #define mthi0(x) __asm__("mthi %0, $ac0" ::"r" (x)) | |
1082 | #define mthi1(x) __asm__("mthi %0, $ac1" ::"r" (x)) | |
1083 | #define mthi2(x) __asm__("mthi %0, $ac2" ::"r" (x)) | |
1084 | #define mthi3(x) __asm__("mthi %0, $ac3" ::"r" (x)) | |
1085 | ||
1086 | #else | |
1087 | ||
1088 | #define mfhi0() \ | |
1089 | ({ \ | |
1090 | unsigned long __treg; \ | |
1091 | \ | |
1092 | __asm__ __volatile__( \ | |
1093 | " .set push \n" \ | |
1094 | " .set noat \n" \ | |
1095 | " # mfhi %0, $ac0 \n" \ | |
1096 | " .word 0x00000810 \n" \ | |
1097 | " move %0, $1 \n" \ | |
1098 | " .set pop \n" \ | |
1099 | : "=r" (__treg)); \ | |
1100 | __treg; \ | |
1101 | }) | |
1102 | ||
1103 | #define mfhi1() \ | |
1104 | ({ \ | |
1105 | unsigned long __treg; \ | |
1106 | \ | |
1107 | __asm__ __volatile__( \ | |
1108 | " .set push \n" \ | |
1109 | " .set noat \n" \ | |
1110 | " # mfhi %0, $ac1 \n" \ | |
1111 | " .word 0x00200810 \n" \ | |
1112 | " move %0, $1 \n" \ | |
1113 | " .set pop \n" \ | |
1114 | : "=r" (__treg)); \ | |
1115 | __treg; \ | |
1116 | }) | |
1117 | ||
1118 | #define mfhi2() \ | |
1119 | ({ \ | |
1120 | unsigned long __treg; \ | |
1121 | \ | |
1122 | __asm__ __volatile__( \ | |
1123 | " .set push \n" \ | |
1124 | " .set noat \n" \ | |
1125 | " # mfhi %0, $ac2 \n" \ | |
1126 | " .word 0x00400810 \n" \ | |
1127 | " move %0, $1 \n" \ | |
1128 | " .set pop \n" \ | |
1129 | : "=r" (__treg)); \ | |
1130 | __treg; \ | |
1131 | }) | |
1132 | ||
1133 | #define mfhi3() \ | |
1134 | ({ \ | |
1135 | unsigned long __treg; \ | |
1136 | \ | |
1137 | __asm__ __volatile__( \ | |
1138 | " .set push \n" \ | |
1139 | " .set noat \n" \ | |
1140 | " # mfhi %0, $ac3 \n" \ | |
1141 | " .word 0x00600810 \n" \ | |
1142 | " move %0, $1 \n" \ | |
1143 | " .set pop \n" \ | |
1144 | : "=r" (__treg)); \ | |
1145 | __treg; \ | |
1146 | }) | |
1147 | ||
1148 | #define mflo0() \ | |
1149 | ({ \ | |
1150 | unsigned long __treg; \ | |
1151 | \ | |
1152 | __asm__ __volatile__( \ | |
1153 | " .set push \n" \ | |
1154 | " .set noat \n" \ | |
1155 | " # mflo %0, $ac0 \n" \ | |
1156 | " .word 0x00000812 \n" \ | |
1157 | " move %0, $1 \n" \ | |
1158 | " .set pop \n" \ | |
1159 | : "=r" (__treg)); \ | |
1160 | __treg; \ | |
1161 | }) | |
1162 | ||
1163 | #define mflo1() \ | |
1164 | ({ \ | |
1165 | unsigned long __treg; \ | |
1166 | \ | |
1167 | __asm__ __volatile__( \ | |
1168 | " .set push \n" \ | |
1169 | " .set noat \n" \ | |
1170 | " # mflo %0, $ac1 \n" \ | |
1171 | " .word 0x00200812 \n" \ | |
1172 | " move %0, $1 \n" \ | |
1173 | " .set pop \n" \ | |
1174 | : "=r" (__treg)); \ | |
1175 | __treg; \ | |
1176 | }) | |
1177 | ||
1178 | #define mflo2() \ | |
1179 | ({ \ | |
1180 | unsigned long __treg; \ | |
1181 | \ | |
1182 | __asm__ __volatile__( \ | |
1183 | " .set push \n" \ | |
1184 | " .set noat \n" \ | |
1185 | " # mflo %0, $ac2 \n" \ | |
1186 | " .word 0x00400812 \n" \ | |
1187 | " move %0, $1 \n" \ | |
1188 | " .set pop \n" \ | |
1189 | : "=r" (__treg)); \ | |
1190 | __treg; \ | |
1191 | }) | |
1192 | ||
1193 | #define mflo3() \ | |
1194 | ({ \ | |
1195 | unsigned long __treg; \ | |
1196 | \ | |
1197 | __asm__ __volatile__( \ | |
1198 | " .set push \n" \ | |
1199 | " .set noat \n" \ | |
1200 | " # mflo %0, $ac3 \n" \ | |
1201 | " .word 0x00600812 \n" \ | |
1202 | " move %0, $1 \n" \ | |
1203 | " .set pop \n" \ | |
1204 | : "=r" (__treg)); \ | |
1205 | __treg; \ | |
1206 | }) | |
1207 | ||
1208 | #define mthi0(x) \ | |
1209 | do { \ | |
1210 | __asm__ __volatile__( \ | |
1211 | " .set push \n" \ | |
1212 | " .set noat \n" \ | |
1213 | " move $1, %0 \n" \ | |
1214 | " # mthi $1, $ac0 \n" \ | |
1215 | " .word 0x00200011 \n" \ | |
1216 | " .set pop \n" \ | |
1217 | : \ | |
1218 | : "r" (x)); \ | |
1219 | } while (0) | |
1220 | ||
1221 | #define mthi1(x) \ | |
1222 | do { \ | |
1223 | __asm__ __volatile__( \ | |
1224 | " .set push \n" \ | |
1225 | " .set noat \n" \ | |
1226 | " move $1, %0 \n" \ | |
1227 | " # mthi $1, $ac1 \n" \ | |
1228 | " .word 0x00200811 \n" \ | |
1229 | " .set pop \n" \ | |
1230 | : \ | |
1231 | : "r" (x)); \ | |
1232 | } while (0) | |
1233 | ||
1234 | #define mthi2(x) \ | |
1235 | do { \ | |
1236 | __asm__ __volatile__( \ | |
1237 | " .set push \n" \ | |
1238 | " .set noat \n" \ | |
1239 | " move $1, %0 \n" \ | |
1240 | " # mthi $1, $ac2 \n" \ | |
1241 | " .word 0x00201011 \n" \ | |
1242 | " .set pop \n" \ | |
1243 | : \ | |
1244 | : "r" (x)); \ | |
1245 | } while (0) | |
1246 | ||
1247 | #define mthi3(x) \ | |
1248 | do { \ | |
1249 | __asm__ __volatile__( \ | |
1250 | " .set push \n" \ | |
1251 | " .set noat \n" \ | |
1252 | " move $1, %0 \n" \ | |
1253 | " # mthi $1, $ac3 \n" \ | |
1254 | " .word 0x00201811 \n" \ | |
1255 | " .set pop \n" \ | |
1256 | : \ | |
1257 | : "r" (x)); \ | |
1258 | } while (0) | |
1259 | ||
1260 | #define mtlo0(x) \ | |
1261 | do { \ | |
1262 | __asm__ __volatile__( \ | |
1263 | " .set push \n" \ | |
1264 | " .set noat \n" \ | |
1265 | " move $1, %0 \n" \ | |
1266 | " # mtlo $1, $ac0 \n" \ | |
1267 | " .word 0x00200013 \n" \ | |
1268 | " .set pop \n" \ | |
1269 | : \ | |
1270 | : "r" (x)); \ | |
1271 | } while (0) | |
1272 | ||
1273 | #define mtlo1(x) \ | |
1274 | do { \ | |
1275 | __asm__ __volatile__( \ | |
1276 | " .set push \n" \ | |
1277 | " .set noat \n" \ | |
1278 | " move $1, %0 \n" \ | |
1279 | " # mtlo $1, $ac1 \n" \ | |
1280 | " .word 0x00200813 \n" \ | |
1281 | " .set pop \n" \ | |
1282 | : \ | |
1283 | : "r" (x)); \ | |
1284 | } while (0) | |
1285 | ||
1286 | #define mtlo2(x) \ | |
1287 | do { \ | |
1288 | __asm__ __volatile__( \ | |
1289 | " .set push \n" \ | |
1290 | " .set noat \n" \ | |
1291 | " move $1, %0 \n" \ | |
1292 | " # mtlo $1, $ac2 \n" \ | |
1293 | " .word 0x00201013 \n" \ | |
1294 | " .set pop \n" \ | |
1295 | : \ | |
1296 | : "r" (x)); \ | |
1297 | } while (0) | |
1298 | ||
1299 | #define mtlo3(x) \ | |
1300 | do { \ | |
1301 | __asm__ __volatile__( \ | |
1302 | " .set push \n" \ | |
1303 | " .set noat \n" \ | |
1304 | " move $1, %0 \n" \ | |
1305 | " # mtlo $1, $ac3 \n" \ | |
1306 | " .word 0x00201813 \n" \ | |
1307 | " .set pop \n" \ | |
1308 | : \ | |
1309 | : "r" (x)); \ | |
1310 | } while (0) | |
1311 | ||
1312 | #endif | |
1313 | ||
1da177e4 LT |
1314 | /* |
1315 | * TLB operations. | |
1316 | * | |
1317 | * It is responsibility of the caller to take care of any TLB hazards. | |
1318 | */ | |
1319 | static inline void tlb_probe(void) | |
1320 | { | |
1321 | __asm__ __volatile__( | |
1322 | ".set noreorder\n\t" | |
1323 | "tlbp\n\t" | |
1324 | ".set reorder"); | |
1325 | } | |
1326 | ||
1327 | static inline void tlb_read(void) | |
1328 | { | |
9267a30d MSJ |
1329 | #if MIPS34K_MISSED_ITLB_WAR |
1330 | int res = 0; | |
1331 | ||
1332 | __asm__ __volatile__( | |
1333 | " .set push \n" | |
1334 | " .set noreorder \n" | |
1335 | " .set noat \n" | |
1336 | " .set mips32r2 \n" | |
1337 | " .word 0x41610001 # dvpe $1 \n" | |
1338 | " move %0, $1 \n" | |
1339 | " ehb \n" | |
1340 | " .set pop \n" | |
1341 | : "=r" (res)); | |
1342 | ||
1343 | instruction_hazard(); | |
1344 | #endif | |
1345 | ||
1da177e4 LT |
1346 | __asm__ __volatile__( |
1347 | ".set noreorder\n\t" | |
1348 | "tlbr\n\t" | |
1349 | ".set reorder"); | |
9267a30d MSJ |
1350 | |
1351 | #if MIPS34K_MISSED_ITLB_WAR | |
1352 | if ((res & _ULCAST_(1))) | |
1353 | __asm__ __volatile__( | |
1354 | " .set push \n" | |
1355 | " .set noreorder \n" | |
1356 | " .set noat \n" | |
1357 | " .set mips32r2 \n" | |
1358 | " .word 0x41600021 # evpe \n" | |
1359 | " ehb \n" | |
1360 | " .set pop \n"); | |
1361 | #endif | |
1da177e4 LT |
1362 | } |
1363 | ||
1364 | static inline void tlb_write_indexed(void) | |
1365 | { | |
1366 | __asm__ __volatile__( | |
1367 | ".set noreorder\n\t" | |
1368 | "tlbwi\n\t" | |
1369 | ".set reorder"); | |
1370 | } | |
1371 | ||
1372 | static inline void tlb_write_random(void) | |
1373 | { | |
1374 | __asm__ __volatile__( | |
1375 | ".set noreorder\n\t" | |
1376 | "tlbwr\n\t" | |
1377 | ".set reorder"); | |
1378 | } | |
1379 | ||
1380 | /* | |
1381 | * Manipulate bits in a c0 register. | |
1382 | */ | |
41c594ab RB |
1383 | #ifndef CONFIG_MIPS_MT_SMTC |
1384 | /* | |
1385 | * SMTC Linux requires shutting-down microthread scheduling | |
1386 | * during CP0 register read-modify-write sequences. | |
1387 | */ | |
1da177e4 LT |
1388 | #define __BUILD_SET_C0(name) \ |
1389 | static inline unsigned int \ | |
1390 | set_c0_##name(unsigned int set) \ | |
1391 | { \ | |
1392 | unsigned int res; \ | |
1393 | \ | |
1394 | res = read_c0_##name(); \ | |
1395 | res |= set; \ | |
1396 | write_c0_##name(res); \ | |
1397 | \ | |
1398 | return res; \ | |
1399 | } \ | |
1400 | \ | |
1401 | static inline unsigned int \ | |
1402 | clear_c0_##name(unsigned int clear) \ | |
1403 | { \ | |
1404 | unsigned int res; \ | |
1405 | \ | |
1406 | res = read_c0_##name(); \ | |
1407 | res &= ~clear; \ | |
1408 | write_c0_##name(res); \ | |
1409 | \ | |
1410 | return res; \ | |
1411 | } \ | |
1412 | \ | |
1413 | static inline unsigned int \ | |
1414 | change_c0_##name(unsigned int change, unsigned int new) \ | |
1415 | { \ | |
1416 | unsigned int res; \ | |
1417 | \ | |
1418 | res = read_c0_##name(); \ | |
1419 | res &= ~change; \ | |
1420 | res |= (new & change); \ | |
1421 | write_c0_##name(res); \ | |
1422 | \ | |
1423 | return res; \ | |
1424 | } | |
1425 | ||
41c594ab RB |
1426 | #else /* SMTC versions that manage MT scheduling */ |
1427 | ||
192ef366 | 1428 | #include <linux/irqflags.h> |
41c594ab RB |
1429 | |
1430 | /* | |
1431 | * This is a duplicate of dmt() in mipsmtregs.h to avoid problems with | |
1432 | * header file recursion. | |
1433 | */ | |
1434 | static inline unsigned int __dmt(void) | |
1435 | { | |
1436 | int res; | |
1437 | ||
1438 | __asm__ __volatile__( | |
1439 | " .set push \n" | |
1440 | " .set mips32r2 \n" | |
1441 | " .set noat \n" | |
1442 | " .word 0x41610BC1 # dmt $1 \n" | |
1443 | " ehb \n" | |
1444 | " move %0, $1 \n" | |
1445 | " .set pop \n" | |
1446 | : "=r" (res)); | |
1447 | ||
1448 | instruction_hazard(); | |
1449 | ||
1450 | return res; | |
1451 | } | |
1452 | ||
1453 | #define __VPECONTROL_TE_SHIFT 15 | |
1454 | #define __VPECONTROL_TE (1UL << __VPECONTROL_TE_SHIFT) | |
1455 | ||
1456 | #define __EMT_ENABLE __VPECONTROL_TE | |
1457 | ||
1458 | static inline void __emt(unsigned int previous) | |
1459 | { | |
1460 | if ((previous & __EMT_ENABLE)) | |
1461 | __asm__ __volatile__( | |
41c594ab RB |
1462 | " .set mips32r2 \n" |
1463 | " .word 0x41600be1 # emt \n" | |
1464 | " ehb \n" | |
1bd5e161 | 1465 | " .set mips0 \n"); |
41c594ab RB |
1466 | } |
1467 | ||
1468 | static inline void __ehb(void) | |
1469 | { | |
1470 | __asm__ __volatile__( | |
4277ff5e RB |
1471 | " .set mips32r2 \n" |
1472 | " ehb \n" " .set mips0 \n"); | |
41c594ab RB |
1473 | } |
1474 | ||
1475 | /* | |
1476 | * Note that local_irq_save/restore affect TC-specific IXMT state, | |
1477 | * not Status.IE as in non-SMTC kernel. | |
1478 | */ | |
1479 | ||
1480 | #define __BUILD_SET_C0(name) \ | |
1481 | static inline unsigned int \ | |
1482 | set_c0_##name(unsigned int set) \ | |
1483 | { \ | |
1484 | unsigned int res; \ | |
1485 | unsigned int omt; \ | |
b7e4226e | 1486 | unsigned long flags; \ |
41c594ab RB |
1487 | \ |
1488 | local_irq_save(flags); \ | |
1489 | omt = __dmt(); \ | |
1490 | res = read_c0_##name(); \ | |
1491 | res |= set; \ | |
1492 | write_c0_##name(res); \ | |
1493 | __emt(omt); \ | |
1494 | local_irq_restore(flags); \ | |
1495 | \ | |
1496 | return res; \ | |
1497 | } \ | |
1498 | \ | |
1499 | static inline unsigned int \ | |
1500 | clear_c0_##name(unsigned int clear) \ | |
1501 | { \ | |
1502 | unsigned int res; \ | |
1503 | unsigned int omt; \ | |
b7e4226e | 1504 | unsigned long flags; \ |
41c594ab RB |
1505 | \ |
1506 | local_irq_save(flags); \ | |
1507 | omt = __dmt(); \ | |
1508 | res = read_c0_##name(); \ | |
1509 | res &= ~clear; \ | |
1510 | write_c0_##name(res); \ | |
1511 | __emt(omt); \ | |
1512 | local_irq_restore(flags); \ | |
1513 | \ | |
1514 | return res; \ | |
1515 | } \ | |
1516 | \ | |
1517 | static inline unsigned int \ | |
1518 | change_c0_##name(unsigned int change, unsigned int new) \ | |
1519 | { \ | |
1520 | unsigned int res; \ | |
1521 | unsigned int omt; \ | |
b7e4226e | 1522 | unsigned long flags; \ |
41c594ab RB |
1523 | \ |
1524 | local_irq_save(flags); \ | |
1525 | \ | |
1526 | omt = __dmt(); \ | |
1527 | res = read_c0_##name(); \ | |
1528 | res &= ~change; \ | |
1529 | res |= (new & change); \ | |
1530 | write_c0_##name(res); \ | |
1531 | __emt(omt); \ | |
1532 | local_irq_restore(flags); \ | |
1533 | \ | |
1534 | return res; \ | |
1535 | } | |
1536 | #endif | |
1537 | ||
1da177e4 LT |
1538 | __BUILD_SET_C0(status) |
1539 | __BUILD_SET_C0(cause) | |
1540 | __BUILD_SET_C0(config) | |
1541 | __BUILD_SET_C0(intcontrol) | |
7a0fc58c RB |
1542 | __BUILD_SET_C0(intctl) |
1543 | __BUILD_SET_C0(srsmap) | |
1da177e4 LT |
1544 | |
1545 | #endif /* !__ASSEMBLY__ */ | |
1546 | ||
1547 | #endif /* _ASM_MIPSREGS_H */ |