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
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
10 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
11 * Copyright (C) 2003, 2004 Maciej W. Rozycki
13 #ifndef _ASM_MIPSREGS_H
14 #define _ASM_MIPSREGS_H
16 #include <linux/config.h>
17 #include <linux/linkage.h>
18 #include <asm/hazards.h>
21 * The following macros are especially useful for __asm__
28 #define STR(x) __STR(x)
37 #define _ULCAST_ (unsigned long)
41 * Coprocessor 0 register names
45 #define CP0_ENTRYLO0 $2
46 #define CP0_ENTRYLO1 $3
48 #define CP0_CONTEXT $4
49 #define CP0_PAGEMASK $5
52 #define CP0_BADVADDR $8
54 #define CP0_ENTRYHI $10
55 #define CP0_COMPARE $11
56 #define CP0_STATUS $12
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
69 #define CP0_PERFORMANCE $25
71 #define CP0_CACHEERR $27
74 #define CP0_ERROREPC $30
75 #define CP0_DESAVE $31
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
88 #define CP0_IWATCH $18
89 #define CP0_DWATCH $19
92 * Coprocessor 0 Set 1 register names
94 #define CP0_S1_DERRADDR0 $26
95 #define CP0_S1_DERRADDR1 $27
96 #define CP0_S1_INTCONTROL $20
99 * Coprocessor 0 Set 2 register names
101 #define CP0_S2_SRSCTL $12 /* MIPSR2 */
104 * Coprocessor 0 Set 3 register names
106 #define CP0_S3_SRSMAP $12 /* MIPSR2 */
111 #define CP0_TX39_CACHE $7
114 * Coprocessor 1 (FPU) register names
116 #define CP1_REVISION $0
117 #define CP1_STATUS $31
120 * FPU Status Register Values
123 * Status Register Values
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 */
138 * X the exception cause indicator
139 * E the exception enable
140 * S the sticky/flag bit
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
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
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
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 */
172 * Values for PageMask register
174 #ifdef CONFIG_CPU_VR41XX
176 /* Why doesn't stupidity hurt ... */
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
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
199 * Default page size for a given kernel configuration
201 #ifdef CONFIG_PAGE_SIZE_4KB
202 #define PM_DEFAULT_MASK PM_4K
203 #elif defined(CONFIG_PAGE_SIZE_16KB)
204 #define PM_DEFAULT_MASK PM_16K
205 #elif defined(CONFIG_PAGE_SIZE_64KB)
206 #define PM_DEFAULT_MASK PM_64K
208 #error Bad page size configuration!
213 * Values used for computation of new tlb entries
226 * R4x00 interrupt enable / cause bits
228 #define IE_SW0 (_ULCAST_(1) << 8)
229 #define IE_SW1 (_ULCAST_(1) << 9)
230 #define IE_IRQ0 (_ULCAST_(1) << 10)
231 #define IE_IRQ1 (_ULCAST_(1) << 11)
232 #define IE_IRQ2 (_ULCAST_(1) << 12)
233 #define IE_IRQ3 (_ULCAST_(1) << 13)
234 #define IE_IRQ4 (_ULCAST_(1) << 14)
235 #define IE_IRQ5 (_ULCAST_(1) << 15)
238 * R4x00 interrupt cause bits
240 #define C_SW0 (_ULCAST_(1) << 8)
241 #define C_SW1 (_ULCAST_(1) << 9)
242 #define C_IRQ0 (_ULCAST_(1) << 10)
243 #define C_IRQ1 (_ULCAST_(1) << 11)
244 #define C_IRQ2 (_ULCAST_(1) << 12)
245 #define C_IRQ3 (_ULCAST_(1) << 13)
246 #define C_IRQ4 (_ULCAST_(1) << 14)
247 #define C_IRQ5 (_ULCAST_(1) << 15)
250 * Bitfields in the R4xx0 cp0 status register
252 #define ST0_IE 0x00000001
253 #define ST0_EXL 0x00000002
254 #define ST0_ERL 0x00000004
255 #define ST0_KSU 0x00000018
256 # define KSU_USER 0x00000010
257 # define KSU_SUPERVISOR 0x00000008
258 # define KSU_KERNEL 0x00000000
259 #define ST0_UX 0x00000020
260 #define ST0_SX 0x00000040
261 #define ST0_KX 0x00000080
262 #define ST0_DE 0x00010000
263 #define ST0_CE 0x00020000
266 * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
267 * cacheops in userspace. This bit exists only on RM7000 and RM9000
270 #define ST0_CO 0x08000000
273 * Bitfields in the R[23]000 cp0 status register.
275 #define ST0_IEC 0x00000001
276 #define ST0_KUC 0x00000002
277 #define ST0_IEP 0x00000004
278 #define ST0_KUP 0x00000008
279 #define ST0_IEO 0x00000010
280 #define ST0_KUO 0x00000020
281 /* bits 6 & 7 are reserved on R[23]000 */
282 #define ST0_ISC 0x00010000
283 #define ST0_SWC 0x00020000
284 #define ST0_CM 0x00080000
287 * Bits specific to the R4640/R4650
289 #define ST0_UM (_ULCAST_(1) << 4)
290 #define ST0_IL (_ULCAST_(1) << 23)
291 #define ST0_DL (_ULCAST_(1) << 24)
294 * Enable the MIPS DSP ASE
296 #define ST0_MX 0x01000000
299 * Bitfields in the TX39 family CP0 Configuration Register 3
301 #define TX39_CONF_ICS_SHIFT 19
302 #define TX39_CONF_ICS_MASK 0x00380000
303 #define TX39_CONF_ICS_1KB 0x00000000
304 #define TX39_CONF_ICS_2KB 0x00080000
305 #define TX39_CONF_ICS_4KB 0x00100000
306 #define TX39_CONF_ICS_8KB 0x00180000
307 #define TX39_CONF_ICS_16KB 0x00200000
309 #define TX39_CONF_DCS_SHIFT 16
310 #define TX39_CONF_DCS_MASK 0x00070000
311 #define TX39_CONF_DCS_1KB 0x00000000
312 #define TX39_CONF_DCS_2KB 0x00010000
313 #define TX39_CONF_DCS_4KB 0x00020000
314 #define TX39_CONF_DCS_8KB 0x00030000
315 #define TX39_CONF_DCS_16KB 0x00040000
317 #define TX39_CONF_CWFON 0x00004000
318 #define TX39_CONF_WBON 0x00002000
319 #define TX39_CONF_RF_SHIFT 10
320 #define TX39_CONF_RF_MASK 0x00000c00
321 #define TX39_CONF_DOZE 0x00000200
322 #define TX39_CONF_HALT 0x00000100
323 #define TX39_CONF_LOCK 0x00000080
324 #define TX39_CONF_ICE 0x00000020
325 #define TX39_CONF_DCE 0x00000010
326 #define TX39_CONF_IRSIZE_SHIFT 2
327 #define TX39_CONF_IRSIZE_MASK 0x0000000c
328 #define TX39_CONF_DRSIZE_SHIFT 0
329 #define TX39_CONF_DRSIZE_MASK 0x00000003
332 * Status register bits available in all MIPS CPUs.
334 #define ST0_IM 0x0000ff00
335 #define STATUSB_IP0 8
336 #define STATUSF_IP0 (_ULCAST_(1) << 8)
337 #define STATUSB_IP1 9
338 #define STATUSF_IP1 (_ULCAST_(1) << 9)
339 #define STATUSB_IP2 10
340 #define STATUSF_IP2 (_ULCAST_(1) << 10)
341 #define STATUSB_IP3 11
342 #define STATUSF_IP3 (_ULCAST_(1) << 11)
343 #define STATUSB_IP4 12
344 #define STATUSF_IP4 (_ULCAST_(1) << 12)
345 #define STATUSB_IP5 13
346 #define STATUSF_IP5 (_ULCAST_(1) << 13)
347 #define STATUSB_IP6 14
348 #define STATUSF_IP6 (_ULCAST_(1) << 14)
349 #define STATUSB_IP7 15
350 #define STATUSF_IP7 (_ULCAST_(1) << 15)
351 #define STATUSB_IP8 0
352 #define STATUSF_IP8 (_ULCAST_(1) << 0)
353 #define STATUSB_IP9 1
354 #define STATUSF_IP9 (_ULCAST_(1) << 1)
355 #define STATUSB_IP10 2
356 #define STATUSF_IP10 (_ULCAST_(1) << 2)
357 #define STATUSB_IP11 3
358 #define STATUSF_IP11 (_ULCAST_(1) << 3)
359 #define STATUSB_IP12 4
360 #define STATUSF_IP12 (_ULCAST_(1) << 4)
361 #define STATUSB_IP13 5
362 #define STATUSF_IP13 (_ULCAST_(1) << 5)
363 #define STATUSB_IP14 6
364 #define STATUSF_IP14 (_ULCAST_(1) << 6)
365 #define STATUSB_IP15 7
366 #define STATUSF_IP15 (_ULCAST_(1) << 7)
367 #define ST0_CH 0x00040000
368 #define ST0_SR 0x00100000
369 #define ST0_TS 0x00200000
370 #define ST0_BEV 0x00400000
371 #define ST0_RE 0x02000000
372 #define ST0_FR 0x04000000
373 #define ST0_CU 0xf0000000
374 #define ST0_CU0 0x10000000
375 #define ST0_CU1 0x20000000
376 #define ST0_CU2 0x40000000
377 #define ST0_CU3 0x80000000
378 #define ST0_XX 0x80000000 /* MIPS IV naming */
381 * Bitfields and bit numbers in the coprocessor 0 cause register.
383 * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
385 #define CAUSEB_EXCCODE 2
386 #define CAUSEF_EXCCODE (_ULCAST_(31) << 2)
388 #define CAUSEF_IP (_ULCAST_(255) << 8)
390 #define CAUSEF_IP0 (_ULCAST_(1) << 8)
392 #define CAUSEF_IP1 (_ULCAST_(1) << 9)
393 #define CAUSEB_IP2 10
394 #define CAUSEF_IP2 (_ULCAST_(1) << 10)
395 #define CAUSEB_IP3 11
396 #define CAUSEF_IP3 (_ULCAST_(1) << 11)
397 #define CAUSEB_IP4 12
398 #define CAUSEF_IP4 (_ULCAST_(1) << 12)
399 #define CAUSEB_IP5 13
400 #define CAUSEF_IP5 (_ULCAST_(1) << 13)
401 #define CAUSEB_IP6 14
402 #define CAUSEF_IP6 (_ULCAST_(1) << 14)
403 #define CAUSEB_IP7 15
404 #define CAUSEF_IP7 (_ULCAST_(1) << 15)
406 #define CAUSEF_IV (_ULCAST_(1) << 23)
408 #define CAUSEF_CE (_ULCAST_(3) << 28)
410 #define CAUSEF_BD (_ULCAST_(1) << 31)
413 * Bits in the coprocessor 0 config register.
416 #define CONF_CM_CACHABLE_NO_WA 0
417 #define CONF_CM_CACHABLE_WA 1
418 #define CONF_CM_UNCACHED 2
419 #define CONF_CM_CACHABLE_NONCOHERENT 3
420 #define CONF_CM_CACHABLE_CE 4
421 #define CONF_CM_CACHABLE_COW 5
422 #define CONF_CM_CACHABLE_CUW 6
423 #define CONF_CM_CACHABLE_ACCELERATED 7
424 #define CONF_CM_CMASK 7
425 #define CONF_BE (_ULCAST_(1) << 15)
427 /* Bits common to various processors. */
428 #define CONF_CU (_ULCAST_(1) << 3)
429 #define CONF_DB (_ULCAST_(1) << 4)
430 #define CONF_IB (_ULCAST_(1) << 5)
431 #define CONF_DC (_ULCAST_(7) << 6)
432 #define CONF_IC (_ULCAST_(7) << 9)
433 #define CONF_EB (_ULCAST_(1) << 13)
434 #define CONF_EM (_ULCAST_(1) << 14)
435 #define CONF_SM (_ULCAST_(1) << 16)
436 #define CONF_SC (_ULCAST_(1) << 17)
437 #define CONF_EW (_ULCAST_(3) << 18)
438 #define CONF_EP (_ULCAST_(15)<< 24)
439 #define CONF_EC (_ULCAST_(7) << 28)
440 #define CONF_CM (_ULCAST_(1) << 31)
442 /* Bits specific to the R4xx0. */
443 #define R4K_CONF_SW (_ULCAST_(1) << 20)
444 #define R4K_CONF_SS (_ULCAST_(1) << 21)
445 #define R4K_CONF_SB (_ULCAST_(3) << 22)
447 /* Bits specific to the R5000. */
448 #define R5K_CONF_SE (_ULCAST_(1) << 12)
449 #define R5K_CONF_SS (_ULCAST_(3) << 20)
451 /* Bits specific to the RM7000. */
452 #define RM7K_CONF_SE (_ULCAST_(1) << 3)
453 #define RM7K_CONF_TE (_ULCAST_(1) << 12)
454 #define RM7K_CONF_CLK (_ULCAST_(1) << 16)
455 #define RM7K_CONF_TC (_ULCAST_(1) << 17)
456 #define RM7K_CONF_SI (_ULCAST_(3) << 20)
457 #define RM7K_CONF_SC (_ULCAST_(1) << 31)
459 /* Bits specific to the R10000. */
460 #define R10K_CONF_DN (_ULCAST_(3) << 3)
461 #define R10K_CONF_CT (_ULCAST_(1) << 5)
462 #define R10K_CONF_PE (_ULCAST_(1) << 6)
463 #define R10K_CONF_PM (_ULCAST_(3) << 7)
464 #define R10K_CONF_EC (_ULCAST_(15)<< 9)
465 #define R10K_CONF_SB (_ULCAST_(1) << 13)
466 #define R10K_CONF_SK (_ULCAST_(1) << 14)
467 #define R10K_CONF_SS (_ULCAST_(7) << 16)
468 #define R10K_CONF_SC (_ULCAST_(7) << 19)
469 #define R10K_CONF_DC (_ULCAST_(7) << 26)
470 #define R10K_CONF_IC (_ULCAST_(7) << 29)
472 /* Bits specific to the VR41xx. */
473 #define VR41_CONF_CS (_ULCAST_(1) << 12)
474 #define VR41_CONF_M16 (_ULCAST_(1) << 20)
475 #define VR41_CONF_AD (_ULCAST_(1) << 23)
477 /* Bits specific to the R30xx. */
478 #define R30XX_CONF_FDM (_ULCAST_(1) << 19)
479 #define R30XX_CONF_REV (_ULCAST_(1) << 22)
480 #define R30XX_CONF_AC (_ULCAST_(1) << 23)
481 #define R30XX_CONF_RF (_ULCAST_(1) << 24)
482 #define R30XX_CONF_HALT (_ULCAST_(1) << 25)
483 #define R30XX_CONF_FPINT (_ULCAST_(7) << 26)
484 #define R30XX_CONF_DBR (_ULCAST_(1) << 29)
485 #define R30XX_CONF_SB (_ULCAST_(1) << 30)
486 #define R30XX_CONF_LOCK (_ULCAST_(1) << 31)
488 /* Bits specific to the TX49. */
489 #define TX49_CONF_DC (_ULCAST_(1) << 16)
490 #define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */
491 #define TX49_CONF_HALT (_ULCAST_(1) << 18)
492 #define TX49_CONF_CWFON (_ULCAST_(1) << 27)
494 /* Bits specific to the MIPS32/64 PRA. */
495 #define MIPS_CONF_MT (_ULCAST_(7) << 7)
496 #define MIPS_CONF_AR (_ULCAST_(7) << 10)
497 #define MIPS_CONF_AT (_ULCAST_(3) << 13)
498 #define MIPS_CONF_M (_ULCAST_(1) << 31)
501 * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
503 #define MIPS_CONF1_FP (_ULCAST_(1) << 0)
504 #define MIPS_CONF1_EP (_ULCAST_(1) << 1)
505 #define MIPS_CONF1_CA (_ULCAST_(1) << 2)
506 #define MIPS_CONF1_WR (_ULCAST_(1) << 3)
507 #define MIPS_CONF1_PC (_ULCAST_(1) << 4)
508 #define MIPS_CONF1_MD (_ULCAST_(1) << 5)
509 #define MIPS_CONF1_C2 (_ULCAST_(1) << 6)
510 #define MIPS_CONF1_DA (_ULCAST_(7) << 7)
511 #define MIPS_CONF1_DL (_ULCAST_(7) << 10)
512 #define MIPS_CONF1_DS (_ULCAST_(7) << 13)
513 #define MIPS_CONF1_IA (_ULCAST_(7) << 16)
514 #define MIPS_CONF1_IL (_ULCAST_(7) << 19)
515 #define MIPS_CONF1_IS (_ULCAST_(7) << 22)
516 #define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25)
518 #define MIPS_CONF2_SA (_ULCAST_(15)<< 0)
519 #define MIPS_CONF2_SL (_ULCAST_(15)<< 4)
520 #define MIPS_CONF2_SS (_ULCAST_(15)<< 8)
521 #define MIPS_CONF2_SU (_ULCAST_(15)<< 12)
522 #define MIPS_CONF2_TA (_ULCAST_(15)<< 16)
523 #define MIPS_CONF2_TL (_ULCAST_(15)<< 20)
524 #define MIPS_CONF2_TS (_ULCAST_(15)<< 24)
525 #define MIPS_CONF2_TU (_ULCAST_(7) << 28)
527 #define MIPS_CONF3_TL (_ULCAST_(1) << 0)
528 #define MIPS_CONF3_SM (_ULCAST_(1) << 1)
529 #define MIPS_CONF3_MT (_ULCAST_(1) << 2)
530 #define MIPS_CONF3_SP (_ULCAST_(1) << 4)
531 #define MIPS_CONF3_VINT (_ULCAST_(1) << 5)
532 #define MIPS_CONF3_VEIC (_ULCAST_(1) << 6)
533 #define MIPS_CONF3_LPA (_ULCAST_(1) << 7)
534 #define MIPS_CONF3_DSP (_ULCAST_(1) << 10)
537 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
539 #define MIPS_FPIR_S (_ULCAST_(1) << 16)
540 #define MIPS_FPIR_D (_ULCAST_(1) << 17)
541 #define MIPS_FPIR_PS (_ULCAST_(1) << 18)
542 #define MIPS_FPIR_3D (_ULCAST_(1) << 19)
543 #define MIPS_FPIR_W (_ULCAST_(1) << 20)
544 #define MIPS_FPIR_L (_ULCAST_(1) << 21)
545 #define MIPS_FPIR_F64 (_ULCAST_(1) << 22)
548 * R10000 performance counter definitions.
550 * FIXME: The R10000 performance counter opens a nice way to implement CPU
551 * time accounting with a precission of one cycle. I don't have
552 * R10000 silicon but just a manual, so ...
556 * Events counted by counter #0
559 #define CE0_INSN_ISSUED 1
560 #define CE0_LPSC_ISSUED 2
561 #define CE0_S_ISSUED 3
562 #define CE0_SC_ISSUED 4
563 #define CE0_SC_FAILED 5
564 #define CE0_BRANCH_DECODED 6
565 #define CE0_QW_WB_SECONDARY 7
566 #define CE0_CORRECTED_ECC_ERRORS 8
567 #define CE0_ICACHE_MISSES 9
568 #define CE0_SCACHE_I_MISSES 10
569 #define CE0_SCACHE_I_WAY_MISSPREDICTED 11
570 #define CE0_EXT_INTERVENTIONS_REQ 12
571 #define CE0_EXT_INVALIDATE_REQ 13
572 #define CE0_VIRTUAL_COHERENCY_COND 14
573 #define CE0_INSN_GRADUATED 15
576 * Events counted by counter #1
579 #define CE1_INSN_GRADUATED 1
580 #define CE1_LPSC_GRADUATED 2
581 #define CE1_S_GRADUATED 3
582 #define CE1_SC_GRADUATED 4
583 #define CE1_FP_INSN_GRADUATED 5
584 #define CE1_QW_WB_PRIMARY 6
585 #define CE1_TLB_REFILL 7
586 #define CE1_BRANCH_MISSPREDICTED 8
587 #define CE1_DCACHE_MISS 9
588 #define CE1_SCACHE_D_MISSES 10
589 #define CE1_SCACHE_D_WAY_MISSPREDICTED 11
590 #define CE1_EXT_INTERVENTION_HITS 12
591 #define CE1_EXT_INVALIDATE_REQ 13
592 #define CE1_SP_HINT_TO_CEXCL_SC_BLOCKS 14
593 #define CE1_SP_HINT_TO_SHARED_SC_BLOCKS 15
596 * These flags define in which privilege mode the counters count events
598 #define CEB_USER 8 /* Count events in user mode, EXL = ERL = 0 */
599 #define CEB_SUPERVISOR 4 /* Count events in supvervisor mode EXL = ERL = 0 */
600 #define CEB_KERNEL 2 /* Count events in kernel mode EXL = ERL = 0 */
601 #define CEB_EXL 1 /* Count events with EXL = 1, ERL = 0 */
606 * Functions to access the R10000 performance counters. These are basically
607 * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
608 * performance counter number encoded into bits 1 ... 5 of the instruction.
609 * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
610 * disassembler these will look like an access to sel 0 or 1.
612 #define read_r10k_perf_cntr(counter) \
614 unsigned int __res; \
615 __asm__ __volatile__( \
623 #define write_r10k_perf_cntr(counter,val) \
625 __asm__ __volatile__( \
628 : "r" (val), "i" (counter)); \
631 #define read_r10k_perf_event(counter) \
633 unsigned int __res; \
634 __asm__ __volatile__( \
642 #define write_r10k_perf_cntl(counter,val) \
644 __asm__ __volatile__( \
647 : "r" (val), "i" (counter)); \
652 * Macros to access the system control coprocessor
655 #define __read_32bit_c0_register(source, sel) \
658 __asm__ __volatile__( \
659 "mfc0\t%0, " #source "\n\t" \
662 __asm__ __volatile__( \
664 "mfc0\t%0, " #source ", " #sel "\n\t" \
670 #define __read_64bit_c0_register(source, sel) \
671 ({ unsigned long long __res; \
672 if (sizeof(unsigned long) == 4) \
673 __res = __read_64bit_c0_split(source, sel); \
675 __asm__ __volatile__( \
677 "dmfc0\t%0, " #source "\n\t" \
681 __asm__ __volatile__( \
683 "dmfc0\t%0, " #source ", " #sel "\n\t" \
689 #define __write_32bit_c0_register(register, sel, value) \
692 __asm__ __volatile__( \
693 "mtc0\t%z0, " #register "\n\t" \
694 : : "Jr" ((unsigned int)(value))); \
696 __asm__ __volatile__( \
698 "mtc0\t%z0, " #register ", " #sel "\n\t" \
700 : : "Jr" ((unsigned int)(value))); \
703 #define __write_64bit_c0_register(register, sel, value) \
705 if (sizeof(unsigned long) == 4) \
706 __write_64bit_c0_split(register, sel, value); \
708 __asm__ __volatile__( \
710 "dmtc0\t%z0, " #register "\n\t" \
714 __asm__ __volatile__( \
716 "dmtc0\t%z0, " #register ", " #sel "\n\t" \
721 #define __read_ulong_c0_register(reg, sel) \
722 ((sizeof(unsigned long) == 4) ? \
723 (unsigned long) __read_32bit_c0_register(reg, sel) : \
724 (unsigned long) __read_64bit_c0_register(reg, sel))
726 #define __write_ulong_c0_register(reg, sel, val) \
728 if (sizeof(unsigned long) == 4) \
729 __write_32bit_c0_register(reg, sel, val); \
731 __write_64bit_c0_register(reg, sel, val); \
735 * On RM7000/RM9000 these are uses to access cop0 set 1 registers
737 #define __read_32bit_c0_ctrl_register(source) \
739 __asm__ __volatile__( \
740 "cfc0\t%0, " #source "\n\t" \
745 #define __write_32bit_c0_ctrl_register(register, value) \
747 __asm__ __volatile__( \
748 "ctc0\t%z0, " #register "\n\t" \
749 : : "Jr" ((unsigned int)(value))); \
753 * These versions are only needed for systems with more than 38 bits of
754 * physical address space running the 32-bit kernel. That's none atm :-)
756 #define __read_64bit_c0_split(source, sel) \
758 unsigned long long val; \
759 unsigned long flags; \
761 local_irq_save(flags); \
763 __asm__ __volatile__( \
765 "dmfc0\t%M0, " #source "\n\t" \
766 "dsll\t%L0, %M0, 32\n\t" \
767 "dsrl\t%M0, %M0, 32\n\t" \
768 "dsrl\t%L0, %L0, 32\n\t" \
772 __asm__ __volatile__( \
774 "dmfc0\t%M0, " #source ", " #sel "\n\t" \
775 "dsll\t%L0, %M0, 32\n\t" \
776 "dsrl\t%M0, %M0, 32\n\t" \
777 "dsrl\t%L0, %L0, 32\n\t" \
780 local_irq_restore(flags); \
785 #define __write_64bit_c0_split(source, sel, val) \
787 unsigned long flags; \
789 local_irq_save(flags); \
791 __asm__ __volatile__( \
793 "dsll\t%L0, %L0, 32\n\t" \
794 "dsrl\t%L0, %L0, 32\n\t" \
795 "dsll\t%M0, %M0, 32\n\t" \
796 "or\t%L0, %L0, %M0\n\t" \
797 "dmtc0\t%L0, " #source "\n\t" \
801 __asm__ __volatile__( \
803 "dsll\t%L0, %L0, 32\n\t" \
804 "dsrl\t%L0, %L0, 32\n\t" \
805 "dsll\t%M0, %M0, 32\n\t" \
806 "or\t%L0, %L0, %M0\n\t" \
807 "dmtc0\t%L0, " #source ", " #sel "\n\t" \
810 local_irq_restore(flags); \
813 #define read_c0_index() __read_32bit_c0_register($0, 0)
814 #define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
816 #define read_c0_entrylo0() __read_ulong_c0_register($2, 0)
817 #define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val)
819 #define read_c0_entrylo1() __read_ulong_c0_register($3, 0)
820 #define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val)
822 #define read_c0_conf() __read_32bit_c0_register($3, 0)
823 #define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
825 #define read_c0_context() __read_ulong_c0_register($4, 0)
826 #define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
828 #define read_c0_pagemask() __read_32bit_c0_register($5, 0)
829 #define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
831 #define read_c0_wired() __read_32bit_c0_register($6, 0)
832 #define write_c0_wired(val) __write_32bit_c0_register($6, 0, val)
834 #define read_c0_info() __read_32bit_c0_register($7, 0)
836 #define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */
837 #define write_c0_cache(val) __write_32bit_c0_register($7, 0, val)
839 #define read_c0_badvaddr() __read_ulong_c0_register($8, 0)
840 #define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val)
842 #define read_c0_count() __read_32bit_c0_register($9, 0)
843 #define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
845 #define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */
846 #define write_c0_count2(val) __write_32bit_c0_register($9, 6, val)
848 #define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */
849 #define write_c0_count3(val) __write_32bit_c0_register($9, 7, val)
851 #define read_c0_entryhi() __read_ulong_c0_register($10, 0)
852 #define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val)
854 #define read_c0_compare() __read_32bit_c0_register($11, 0)
855 #define write_c0_compare(val) __write_32bit_c0_register($11, 0, val)
857 #define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */
858 #define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val)
860 #define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */
861 #define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val)
863 #define read_c0_status() __read_32bit_c0_register($12, 0)
864 #ifdef CONFIG_MIPS_MT_SMTC
865 #define write_c0_status(val) \
867 __write_32bit_c0_register($12, 0, val); \
872 * Legacy non-SMTC code, which may be hazardous
873 * but which might not support EHB
875 #define write_c0_status(val) __write_32bit_c0_register($12, 0, val)
876 #endif /* CONFIG_MIPS_MT_SMTC */
878 #define read_c0_cause() __read_32bit_c0_register($13, 0)
879 #define write_c0_cause(val) __write_32bit_c0_register($13, 0, val)
881 #define read_c0_epc() __read_ulong_c0_register($14, 0)
882 #define write_c0_epc(val) __write_ulong_c0_register($14, 0, val)
884 #define read_c0_prid() __read_32bit_c0_register($15, 0)
886 #define read_c0_config() __read_32bit_c0_register($16, 0)
887 #define read_c0_config1() __read_32bit_c0_register($16, 1)
888 #define read_c0_config2() __read_32bit_c0_register($16, 2)
889 #define read_c0_config3() __read_32bit_c0_register($16, 3)
890 #define read_c0_config4() __read_32bit_c0_register($16, 4)
891 #define read_c0_config5() __read_32bit_c0_register($16, 5)
892 #define read_c0_config6() __read_32bit_c0_register($16, 6)
893 #define read_c0_config7() __read_32bit_c0_register($16, 7)
894 #define write_c0_config(val) __write_32bit_c0_register($16, 0, val)
895 #define write_c0_config1(val) __write_32bit_c0_register($16, 1, val)
896 #define write_c0_config2(val) __write_32bit_c0_register($16, 2, val)
897 #define write_c0_config3(val) __write_32bit_c0_register($16, 3, val)
898 #define write_c0_config4(val) __write_32bit_c0_register($16, 4, val)
899 #define write_c0_config5(val) __write_32bit_c0_register($16, 5, val)
900 #define write_c0_config6(val) __write_32bit_c0_register($16, 6, val)
901 #define write_c0_config7(val) __write_32bit_c0_register($16, 7, val)
904 * The WatchLo register. There may be upto 8 of them.
906 #define read_c0_watchlo0() __read_ulong_c0_register($18, 0)
907 #define read_c0_watchlo1() __read_ulong_c0_register($18, 1)
908 #define read_c0_watchlo2() __read_ulong_c0_register($18, 2)
909 #define read_c0_watchlo3() __read_ulong_c0_register($18, 3)
910 #define read_c0_watchlo4() __read_ulong_c0_register($18, 4)
911 #define read_c0_watchlo5() __read_ulong_c0_register($18, 5)
912 #define read_c0_watchlo6() __read_ulong_c0_register($18, 6)
913 #define read_c0_watchlo7() __read_ulong_c0_register($18, 7)
914 #define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val)
915 #define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val)
916 #define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val)
917 #define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val)
918 #define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val)
919 #define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val)
920 #define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val)
921 #define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val)
924 * The WatchHi register. There may be upto 8 of them.
926 #define read_c0_watchhi0() __read_32bit_c0_register($19, 0)
927 #define read_c0_watchhi1() __read_32bit_c0_register($19, 1)
928 #define read_c0_watchhi2() __read_32bit_c0_register($19, 2)
929 #define read_c0_watchhi3() __read_32bit_c0_register($19, 3)
930 #define read_c0_watchhi4() __read_32bit_c0_register($19, 4)
931 #define read_c0_watchhi5() __read_32bit_c0_register($19, 5)
932 #define read_c0_watchhi6() __read_32bit_c0_register($19, 6)
933 #define read_c0_watchhi7() __read_32bit_c0_register($19, 7)
935 #define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val)
936 #define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val)
937 #define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val)
938 #define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val)
939 #define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val)
940 #define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val)
941 #define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val)
942 #define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val)
944 #define read_c0_xcontext() __read_ulong_c0_register($20, 0)
945 #define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val)
947 #define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20)
948 #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
950 #define read_c0_framemask() __read_32bit_c0_register($21, 0)
951 #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
953 /* RM9000 PerfControl performance counter control register */
954 #define read_c0_perfcontrol() __read_32bit_c0_register($22, 0)
955 #define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val)
957 #define read_c0_diag() __read_32bit_c0_register($22, 0)
958 #define write_c0_diag(val) __write_32bit_c0_register($22, 0, val)
960 #define read_c0_diag1() __read_32bit_c0_register($22, 1)
961 #define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val)
963 #define read_c0_diag2() __read_32bit_c0_register($22, 2)
964 #define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val)
966 #define read_c0_diag3() __read_32bit_c0_register($22, 3)
967 #define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val)
969 #define read_c0_diag4() __read_32bit_c0_register($22, 4)
970 #define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val)
972 #define read_c0_diag5() __read_32bit_c0_register($22, 5)
973 #define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val)
975 #define read_c0_debug() __read_32bit_c0_register($23, 0)
976 #define write_c0_debug(val) __write_32bit_c0_register($23, 0, val)
978 #define read_c0_depc() __read_ulong_c0_register($24, 0)
979 #define write_c0_depc(val) __write_ulong_c0_register($24, 0, val)
982 * MIPS32 / MIPS64 performance counters
984 #define read_c0_perfctrl0() __read_32bit_c0_register($25, 0)
985 #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
986 #define read_c0_perfcntr0() __read_32bit_c0_register($25, 1)
987 #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
988 #define read_c0_perfctrl1() __read_32bit_c0_register($25, 2)
989 #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
990 #define read_c0_perfcntr1() __read_32bit_c0_register($25, 3)
991 #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
992 #define read_c0_perfctrl2() __read_32bit_c0_register($25, 4)
993 #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
994 #define read_c0_perfcntr2() __read_32bit_c0_register($25, 5)
995 #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
996 #define read_c0_perfctrl3() __read_32bit_c0_register($25, 6)
997 #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
998 #define read_c0_perfcntr3() __read_32bit_c0_register($25, 7)
999 #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
1001 /* RM9000 PerfCount performance counter register */
1002 #define read_c0_perfcount() __read_64bit_c0_register($25, 0)
1003 #define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val)
1005 #define read_c0_ecc() __read_32bit_c0_register($26, 0)
1006 #define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val)
1008 #define read_c0_derraddr0() __read_ulong_c0_register($26, 1)
1009 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
1011 #define read_c0_cacheerr() __read_32bit_c0_register($27, 0)
1013 #define read_c0_derraddr1() __read_ulong_c0_register($27, 1)
1014 #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
1016 #define read_c0_taglo() __read_32bit_c0_register($28, 0)
1017 #define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val)
1019 #define read_c0_dtaglo() __read_32bit_c0_register($28, 2)
1020 #define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val)
1022 #define read_c0_taghi() __read_32bit_c0_register($29, 0)
1023 #define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val)
1025 #define read_c0_errorepc() __read_ulong_c0_register($30, 0)
1026 #define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val)
1029 #define read_c0_hwrena() __read_32bit_c0_register($7,0)
1030 #define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val)
1032 #define read_c0_intctl() __read_32bit_c0_register($12, 1)
1033 #define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val)
1035 #define read_c0_srsctl() __read_32bit_c0_register($12, 2)
1036 #define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val)
1038 #define read_c0_srsmap() __read_32bit_c0_register($12, 3)
1039 #define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val)
1041 #define read_c0_ebase() __read_32bit_c0_register($15,1)
1042 #define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
1045 * Macros to access the floating point coprocessor control registers
1047 #define read_32bit_cp1_register(source) \
1049 __asm__ __volatile__( \
1051 ".set\treorder\n\t" \
1052 "cfc1\t%0,"STR(source)"\n\t" \
1057 #define rddsp(mask) \
1059 unsigned int __res; \
1061 __asm__ __volatile__( \
1064 " # rddsp $1, %x1 \n" \
1065 " .word 0x7c000cb8 | (%x1 << 16) \n" \
1073 #define wrdsp(val, mask) \
1075 __asm__ __volatile__( \
1079 " # wrdsp $1, %x1 \n" \
1080 " .word 0x7c2004f8 | (%x1 << 11) \n" \
1083 : "r" (val), "i" (mask)); \
1086 #if 0 /* Need DSP ASE capable assembler ... */
1087 #define mflo0() ({ long mflo0; __asm__("mflo %0, $ac0" : "=r" (mflo0)); mflo0;})
1088 #define mflo1() ({ long mflo1; __asm__("mflo %0, $ac1" : "=r" (mflo1)); mflo1;})
1089 #define mflo2() ({ long mflo2; __asm__("mflo %0, $ac2" : "=r" (mflo2)); mflo2;})
1090 #define mflo3() ({ long mflo3; __asm__("mflo %0, $ac3" : "=r" (mflo3)); mflo3;})
1092 #define mfhi0() ({ long mfhi0; __asm__("mfhi %0, $ac0" : "=r" (mfhi0)); mfhi0;})
1093 #define mfhi1() ({ long mfhi1; __asm__("mfhi %0, $ac1" : "=r" (mfhi1)); mfhi1;})
1094 #define mfhi2() ({ long mfhi2; __asm__("mfhi %0, $ac2" : "=r" (mfhi2)); mfhi2;})
1095 #define mfhi3() ({ long mfhi3; __asm__("mfhi %0, $ac3" : "=r" (mfhi3)); mfhi3;})
1097 #define mtlo0(x) __asm__("mtlo %0, $ac0" ::"r" (x))
1098 #define mtlo1(x) __asm__("mtlo %0, $ac1" ::"r" (x))
1099 #define mtlo2(x) __asm__("mtlo %0, $ac2" ::"r" (x))
1100 #define mtlo3(x) __asm__("mtlo %0, $ac3" ::"r" (x))
1102 #define mthi0(x) __asm__("mthi %0, $ac0" ::"r" (x))
1103 #define mthi1(x) __asm__("mthi %0, $ac1" ::"r" (x))
1104 #define mthi2(x) __asm__("mthi %0, $ac2" ::"r" (x))
1105 #define mthi3(x) __asm__("mthi %0, $ac3" ::"r" (x))
1111 unsigned long __treg; \
1113 __asm__ __volatile__( \
1116 " # mfhi %0, $ac0 \n" \
1117 " .word 0x00000810 \n" \
1126 unsigned long __treg; \
1128 __asm__ __volatile__( \
1131 " # mfhi %0, $ac1 \n" \
1132 " .word 0x00200810 \n" \
1141 unsigned long __treg; \
1143 __asm__ __volatile__( \
1146 " # mfhi %0, $ac2 \n" \
1147 " .word 0x00400810 \n" \
1156 unsigned long __treg; \
1158 __asm__ __volatile__( \
1161 " # mfhi %0, $ac3 \n" \
1162 " .word 0x00600810 \n" \
1171 unsigned long __treg; \
1173 __asm__ __volatile__( \
1176 " # mflo %0, $ac0 \n" \
1177 " .word 0x00000812 \n" \
1186 unsigned long __treg; \
1188 __asm__ __volatile__( \
1191 " # mflo %0, $ac1 \n" \
1192 " .word 0x00200812 \n" \
1201 unsigned long __treg; \
1203 __asm__ __volatile__( \
1206 " # mflo %0, $ac2 \n" \
1207 " .word 0x00400812 \n" \
1216 unsigned long __treg; \
1218 __asm__ __volatile__( \
1221 " # mflo %0, $ac3 \n" \
1222 " .word 0x00600812 \n" \
1231 __asm__ __volatile__( \
1235 " # mthi $1, $ac0 \n" \
1236 " .word 0x00200011 \n" \
1244 __asm__ __volatile__( \
1248 " # mthi $1, $ac1 \n" \
1249 " .word 0x00200811 \n" \
1257 __asm__ __volatile__( \
1261 " # mthi $1, $ac2 \n" \
1262 " .word 0x00201011 \n" \
1270 __asm__ __volatile__( \
1274 " # mthi $1, $ac3 \n" \
1275 " .word 0x00201811 \n" \
1283 __asm__ __volatile__( \
1287 " # mtlo $1, $ac0 \n" \
1288 " .word 0x00200013 \n" \
1296 __asm__ __volatile__( \
1300 " # mtlo $1, $ac1 \n" \
1301 " .word 0x00200813 \n" \
1309 __asm__ __volatile__( \
1313 " # mtlo $1, $ac2 \n" \
1314 " .word 0x00201013 \n" \
1322 __asm__ __volatile__( \
1326 " # mtlo $1, $ac3 \n" \
1327 " .word 0x00201813 \n" \
1338 * It is responsibility of the caller to take care of any TLB hazards.
1340 static inline void tlb_probe(void)
1342 __asm__
__volatile__(
1343 ".set noreorder\n\t"
1348 static inline void tlb_read(void)
1350 __asm__
__volatile__(
1351 ".set noreorder\n\t"
1356 static inline void tlb_write_indexed(void)
1358 __asm__
__volatile__(
1359 ".set noreorder\n\t"
1364 static inline void tlb_write_random(void)
1366 __asm__
__volatile__(
1367 ".set noreorder\n\t"
1373 * Manipulate bits in a c0 register.
1375 #ifndef CONFIG_MIPS_MT_SMTC
1377 * SMTC Linux requires shutting-down microthread scheduling
1378 * during CP0 register read-modify-write sequences.
1380 #define __BUILD_SET_C0(name) \
1381 static inline unsigned int \
1382 set_c0_##name(unsigned int set) \
1386 res = read_c0_##name(); \
1388 write_c0_##name(res); \
1393 static inline unsigned int \
1394 clear_c0_##name(unsigned int clear) \
1398 res = read_c0_##name(); \
1400 write_c0_##name(res); \
1405 static inline unsigned int \
1406 change_c0_##name(unsigned int change, unsigned int new) \
1410 res = read_c0_##name(); \
1412 res |= (new & change); \
1413 write_c0_##name(res); \
1418 #else /* SMTC versions that manage MT scheduling */
1420 #include <asm/interrupt.h>
1423 * This is a duplicate of dmt() in mipsmtregs.h to avoid problems with
1424 * header file recursion.
1426 static inline unsigned int __dmt(void)
1430 __asm__
__volatile__(
1434 " .word 0x41610BC1 # dmt $1 \n"
1440 instruction_hazard();
1445 #define __VPECONTROL_TE_SHIFT 15
1446 #define __VPECONTROL_TE (1UL << __VPECONTROL_TE_SHIFT)
1448 #define __EMT_ENABLE __VPECONTROL_TE
1450 static inline void __emt(unsigned int previous
)
1452 if ((previous
& __EMT_ENABLE
))
1453 __asm__
__volatile__(
1454 " .set noreorder \n"
1456 " .word 0x41600be1 # emt \n"
1459 " .set reorder \n");
1462 static inline void __ehb(void)
1464 __asm__
__volatile__(
1469 * Note that local_irq_save/restore affect TC-specific IXMT state,
1470 * not Status.IE as in non-SMTC kernel.
1473 #define __BUILD_SET_C0(name) \
1474 static inline unsigned int \
1475 set_c0_##name(unsigned int set) \
1479 unsigned int flags; \
1481 local_irq_save(flags); \
1483 res = read_c0_##name(); \
1485 write_c0_##name(res); \
1487 local_irq_restore(flags); \
1492 static inline unsigned int \
1493 clear_c0_##name(unsigned int clear) \
1497 unsigned int flags; \
1499 local_irq_save(flags); \
1501 res = read_c0_##name(); \
1503 write_c0_##name(res); \
1505 local_irq_restore(flags); \
1510 static inline unsigned int \
1511 change_c0_##name(unsigned int change, unsigned int new) \
1515 unsigned int flags; \
1517 local_irq_save(flags); \
1520 res = read_c0_##name(); \
1522 res |= (new & change); \
1523 write_c0_##name(res); \
1525 local_irq_restore(flags); \
1531 __BUILD_SET_C0(status
)
1532 __BUILD_SET_C0(cause
)
1533 __BUILD_SET_C0(config
)
1534 __BUILD_SET_C0(intcontrol
)
1535 __BUILD_SET_C0(intctl
)
1536 __BUILD_SET_C0(srsmap
)
1538 #endif /* !__ASSEMBLY__ */
1540 #endif /* _ASM_MIPSREGS_H */