cpu.h revision 1.90.16.15 1 /* $NetBSD: cpu.h,v 1.90.16.15 2010/01/26 21:19:25 matt Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell and Rick Macklem.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)cpu.h 8.4 (Berkeley) 1/4/94
35 */
36
37 #ifndef _CPU_H_
38 #define _CPU_H_
39
40 #include <mips/cpuregs.h>
41
42 /*
43 * Exported definitions unique to NetBSD/mips cpu support.
44 */
45
46 #ifdef _KERNEL
47 #ifndef _LOCORE
48 #include <sys/cpu_data.h>
49 #include <sys/device.h>
50
51 #if defined(_KERNEL_OPT)
52 #include "opt_lockdebug.h"
53 #include "opt_multiprocessor.h"
54 #endif
55
56 struct pridtab {
57 int cpu_cid;
58 int cpu_pid;
59 int cpu_rev; /* -1 == wildcard */
60 int cpu_copts; /* -1 == wildcard */
61 int cpu_isa; /* -1 == probed (mips32/mips64) */
62 int cpu_ntlb; /* -1 == unknown, 0 == probed */
63 int cpu_flags;
64 u_int cpu_cp0flags; /* presence of some cp0 regs */
65 u_int cpu_cidflags; /* company-specific flags */
66 const char *cpu_name;
67 };
68
69 /*
70 * bitfield defines for cpu_cp0flags
71 */
72 #define MIPS_CP0FL_USE __BIT(0) /* use these flags */
73 #define MIPS_CP0FL_ECC __BIT(1)
74 #define MIPS_CP0FL_CACHE_ERR __BIT(2)
75 #define MIPS_CP0FL_EIRR __BIT(3)
76 #define MIPS_CP0FL_EIMR __BIT(4)
77 #define MIPS_CP0FL_EBASE __BIT(5)
78 #define MIPS_CP0FL_CONFIG __BIT(6)
79 #define MIPS_CP0FL_CONFIGn(n) (__BIT(7) << ((n) & 7))
80
81 /*
82 * cpu_cidflags defines, by company
83 */
84 /*
85 * RMI company-specific cpu_cidflags
86 */
87 #define MIPS_CIDFL_RMI_TYPE __BITS(2,0)
88 # define CIDFL_RMI_TYPE_XLR 0
89 # define CIDFL_RMI_TYPE_XLS 1
90 # define CIDFL_RMI_TYPE_XLP 2
91 #define MIPS_CIDFL_RMI_THREADS_MASK __BITS(6,3)
92 # define MIPS_CIDFL_RMI_THREADS_SHIFT 3
93 #define MIPS_CIDFL_RMI_CORES_MASK __BITS(10,7)
94 # define MIPS_CIDFL_RMI_CORES_SHIFT 7
95 # define LOG2_1 0
96 # define LOG2_2 1
97 # define LOG2_4 2
98 # define LOG2_8 3
99 # define MIPS_CIDFL_RMI_CPUS(ncores, nthreads) \
100 ((LOG2_ ## ncores << MIPS_CIDFL_RMI_CORES_SHIFT) \
101 |(LOG2_ ## nthreads << MIPS_CIDFL_RMI_THREADS_SHIFT))
102 # define MIPS_CIDFL_RMI_NTHREADS(cidfl) \
103 (1 << (((cidfl) & MIPS_CIDFL_RMI_THREADS_MASK) \
104 >> MIPS_CIDFL_RMI_THREADS_SHIFT))
105 # define MIPS_CIDFL_RMI_NCORES(cidfl) \
106 (1 << (((cidfl) & MIPS_CIDFL_RMI_CORES_MASK) \
107 >> MIPS_CIDFL_RMI_CORES_SHIFT))
108 #define MIPS_CIDFL_RMI_L2SZ_MASK __BITS(14,11)
109 # define MIPS_CIDFL_RMI_L2SZ_SHIFT 11
110 # define RMI_L2SZ_256KB 0
111 # define RMI_L2SZ_512KB 1
112 # define RMI_L2SZ_1MB 2
113 # define RMI_L2SZ_2MB 3
114 # define RMI_L2SZ_4MB 4
115 # define MIPS_CIDFL_RMI_L2(l2sz) \
116 (RMI_L2SZ_ ## l2sz << MIPS_CIDFL_RMI_L2SZ_SHIFT)
117 # define MIPS_CIDFL_RMI_L2SZ(cidfl) \
118 ((256*1024) << (((cidfl) & MIPS_CIDFL_RMI_L2SZ_MASK) \
119 >> MIPS_CIDFL_RMI_L2SZ_SHIFT))
120
121
122
123 struct cpu_info {
124 struct cpu_data ci_data; /* MI per-cpu data */
125 struct cpu_info *ci_next; /* Next CPU in list */
126 cpuid_t ci_cpuid; /* Machine-level identifier */
127 u_long ci_cpu_freq; /* CPU frequency */
128 u_long ci_cycles_per_hz; /* CPU freq / hz */
129 u_long ci_divisor_delay; /* for delay/DELAY */
130 u_long ci_divisor_recip; /* unused, for obsolete microtime(9) */
131 struct lwp *ci_curlwp; /* currently running lwp */
132 struct lwp *ci_fpcurlwp; /* the current FPU owner */
133 int ci_want_resched; /* user preemption pending */
134 int ci_mtx_count; /* negative count of held mutexes */
135 int ci_mtx_oldspl; /* saved SPL value */
136 int ci_idepth; /* hardware interrupt depth */
137 device_t ci_dev; /* owning device */
138 vaddr_t ci_ebase; /* VA of exception base */
139 paddr_t ci_ebase_pa; /* PA of exception base */
140 u_long ci_cctr_freq; /* cycle counter frequency */
141 /*
142 * Per-cpu pmap information
143 */
144 struct segtab *ci_pmap_segbase;
145 vaddr_t ci_pmap_srcbase; /* starting VA of ephemeral src space */
146 vaddr_t ci_pmap_dstbase; /* starting VA of ephemeral dst space */
147 uint32_t ci_pmap_asid_next; /* next asid to be assigned */
148 uint32_t ci_pmap_asid_generation; /* current asid generation */
149 uint32_t ci_pmap_asid_reserved; /* base of ASID space */
150 uint32_t ci_pmap_asid_max; /* max (exclusive) assignable asid */
151 };
152
153 #define CPU_INFO_ITERATOR int
154 #define CPU_INFO_FOREACH(cii, ci) \
155 (void)(cii), ci = &cpu_info_store; ci != NULL; ci = ci->ci_next
156
157 #endif /* !_LOCORE */
158 #endif /* _KERNEL */
159
160 /*
161 * CTL_MACHDEP definitions.
162 */
163 #define CPU_CONSDEV 1 /* dev_t: console terminal device */
164 #define CPU_BOOTED_KERNEL 2 /* string: booted kernel name */
165 #define CPU_ROOT_DEVICE 3 /* string: root device name */
166 #define CPU_LLSC 4 /* OS/CPU supports LL/SC instruction */
167
168 /*
169 * Platform can override, but note this breaks userland compatibility
170 * with other mips platforms.
171 */
172 #ifndef CPU_MAXID
173 #define CPU_MAXID 5 /* number of valid machdep ids */
174
175 #endif
176
177 #ifdef _KERNEL
178 #if defined(_LKM) || defined(_STANDALONE)
179 /* Assume all CPU architectures are valid for LKM's and standlone progs */
180 #define MIPS1 1
181 #define MIPS3 1
182 #define MIPS4 1
183 #define MIPS32 1
184 #define MIPS64 1
185 #endif
186
187 #if (MIPS1 + MIPS3 + MIPS4 + MIPS32 + MIPS64) == 0
188 #error at least one of MIPS1, MIPS3, MIPS4, MIPS32 or MIPS64 must be specified
189 #endif
190
191 /* Shortcut for MIPS3 or above defined */
192 #if defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)
193 #define MIPS3_PLUS 1
194 #else
195 #undef MIPS3_PLUS
196 #endif
197
198 /*
199 * Macros to find the CPU architecture we're on at run-time,
200 * or if possible, at compile-time.
201 */
202
203 #define CPU_ARCH_MIPSx 0 /* XXX unknown */
204 #define CPU_ARCH_MIPS1 (1 << 0)
205 #define CPU_ARCH_MIPS2 (1 << 1)
206 #define CPU_ARCH_MIPS3 (1 << 2)
207 #define CPU_ARCH_MIPS4 (1 << 3)
208 #define CPU_ARCH_MIPS5 (1 << 4)
209 #define CPU_ARCH_MIPS32 (1 << 5)
210 #define CPU_ARCH_MIPS64 (1 << 6)
211
212 /* Note: must be kept in sync with -ffixed-?? Makefile.mips. */
213 #define MIPS_CURLWP $23
214 #define MIPS_CURLWP_QUOTED "$23"
215 #define MIPS_CURLWP_CARD 23
216 #define MIPS_CURLWP_FRAME(x) FRAME_S7(x)
217
218 #ifndef _LOCORE
219
220 extern struct cpu_info cpu_info_store;
221 register struct lwp *mips_curlwp asm(MIPS_CURLWP_QUOTED);
222
223 #define curlwp mips_curlwp
224 #define curcpu() (curlwp->l_cpu)
225 #define curpcb ((struct pcb *)curlwp->l_addr)
226 #define fpcurlwp (curcpu()->ci_fpcurlwp)
227 #ifdef MULTIPROCESSOR
228 #define cpu_number() (curcpu()->ci_cpuid)
229 #else
230 #define cpu_number() (0)
231 #endif
232 #define cpu_proc_fork(p1, p2) ((void)((p2)->p_md.md_abi = (p1)->p_md.md_abi))
233
234 /* XXX simonb
235 * Should the following be in a cpu_info type structure?
236 * And how many of these are per-cpu vs. per-system? (Ie,
237 * we can assume that all cpus have the same mmu-type, but
238 * maybe not that all cpus run at the same clock speed.
239 * Some SGI's apparently support R12k and R14k in the same
240 * box.)
241 */
242 struct mips_options {
243 const struct pridtab *mips_cpu;
244
245 u_int mips_cpu_arch;
246 u_int mips_cpu_mhz; /* CPU speed in MHz, estimated by mc_cpuspeed(). */
247 u_int mips_cpu_flags;
248 u_int mips_num_tlb_entries;
249 mips_prid_t mips_cpu_id;
250 mips_prid_t mips_fpu_id;
251 bool mips_has_r4k_mmu;
252 bool mips_has_llsc;
253 u_int mips3_pg_shift;
254 u_int mips3_pg_cached;
255 #ifdef MIPS3_PLUS
256 #ifdef _LP64
257 uint64_t mips3_xkphys_cached;
258 #endif
259 uint64_t mips3_tlb_vpn_mask;
260 uint64_t mips3_tlb_pfn_mask;
261 uint32_t mips3_tlb_pg_mask;
262 #endif
263 };
264 extern struct mips_options mips_options;
265
266 #define CPU_MIPS_R4K_MMU 0x0001
267 #define CPU_MIPS_NO_LLSC 0x0002
268 #define CPU_MIPS_CAUSE_IV 0x0004
269 #define CPU_MIPS_HAVE_SPECIAL_CCA 0x0008 /* Defaults to '3' if not set. */
270 #define CPU_MIPS_CACHED_CCA_MASK 0x0070
271 #define CPU_MIPS_CACHED_CCA_SHIFT 4
272 #define CPU_MIPS_DOUBLE_COUNT 0x0080 /* 1 cp0 count == 2 clock cycles */
273 #define CPU_MIPS_USE_WAIT 0x0100 /* Use "wait"-based cpu_idle() */
274 #define CPU_MIPS_NO_WAIT 0x0200 /* Inverse of previous, for mips32/64 */
275 #define CPU_MIPS_D_CACHE_COHERENT 0x0400 /* D-cache is fully coherent */
276 #define CPU_MIPS_I_D_CACHE_COHERENT 0x0800 /* I-cache funcs don't need to flush the D-cache */
277 #define CPU_MIPS_NO_LLADDR 0x1000
278 #define CPU_MIPS_HAVE_MxCR 0x2000 /* have mfcr, mtcr insns */
279 #define MIPS_NOT_SUPP 0x8000
280
281 #endif /* !_LOCORE */
282
283 #if ((MIPS1 + MIPS3 + MIPS4 + MIPS32 + MIPS64) == 1) || defined(_LOCORE)
284
285 #if defined(MIPS1)
286
287 # define CPUISMIPS3 0
288 # define CPUIS64BITS 0
289 # define CPUISMIPS32 0
290 # define CPUISMIPS64 0
291 # define CPUISMIPSNN 0
292 # define MIPS_HAS_R4K_MMU 0
293 # define MIPS_HAS_CLOCK 0
294 # define MIPS_HAS_LLSC 0
295 # define MIPS_HAS_LLADDR 0
296
297 #elif defined(MIPS3) || defined(MIPS4)
298
299 # define CPUISMIPS3 1
300 # define CPUIS64BITS 1
301 # define CPUISMIPS32 0
302 # define CPUISMIPS64 0
303 # define CPUISMIPSNN 0
304 # define MIPS_HAS_R4K_MMU 1
305 # define MIPS_HAS_CLOCK 1
306 # if defined(_LOCORE)
307 # if !defined(MIPS3_5900) && !defined(MIPS3_4100)
308 # define MIPS_HAS_LLSC 1
309 # else
310 # define MIPS_HAS_LLSC 0
311 # endif
312 # else /* _LOCORE */
313 # define MIPS_HAS_LLSC (mips_options.mips_has_llsc)
314 # endif /* _LOCORE */
315 # define MIPS_HAS_LLADDR ((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
316
317 #elif defined(MIPS32)
318
319 # define CPUISMIPS3 1
320 # define CPUIS64BITS 0
321 # define CPUISMIPS32 1
322 # define CPUISMIPS64 0
323 # define CPUISMIPSNN 1
324 # define MIPS_HAS_R4K_MMU 1
325 # define MIPS_HAS_CLOCK 1
326 # define MIPS_HAS_LLSC 1
327 # define MIPS_HAS_LLADDR ((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
328
329 #elif defined(MIPS64)
330
331 # define CPUISMIPS3 1
332 # define CPUIS64BITS 1
333 # define CPUISMIPS32 0
334 # define CPUISMIPS64 1
335 # define CPUISMIPSNN 1
336 # define MIPS_HAS_R4K_MMU 1
337 # define MIPS_HAS_CLOCK 1
338 # define MIPS_HAS_LLSC 1
339 # define MIPS_HAS_LLADDR ((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
340
341 #endif
342
343 #else /* run-time test */
344
345 #ifndef _LOCORE
346
347 #define MIPS_HAS_R4K_MMU (mips_options.mips_has_r4k_mmu)
348 #define MIPS_HAS_LLSC (mips_options.mips_has_llsc)
349 #define MIPS_HAS_LLADDR ((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
350
351 /* This test is ... rather bogus */
352 #define CPUISMIPS3 ((mips_options.mips_cpu_arch & \
353 (CPU_ARCH_MIPS3 | CPU_ARCH_MIPS4 | CPU_ARCH_MIPS32 | CPU_ARCH_MIPS64)) != 0)
354
355 /* And these aren't much better while the previous test exists as is... */
356 #define CPUISMIPS4 ((mips_options.mips_cpu_arch & CPU_ARCH_MIPS4) != 0)
357 #define CPUISMIPS5 ((mips_options.mips_cpu_arch & CPU_ARCH_MIPS5) != 0)
358 #define CPUISMIPS32 ((mips_options.mips_cpu_arch & CPU_ARCH_MIPS32) != 0)
359 #define CPUISMIPS64 ((mips_options.mips_cpu_arch & CPU_ARCH_MIPS64) != 0)
360 #define CPUISMIPSNN ((mips_options.mips_cpu_arch & (CPU_ARCH_MIPS32 | CPU_ARCH_MIPS64)) != 0)
361 #define CPUIS64BITS ((mips_options.mips_cpu_arch & \
362 (CPU_ARCH_MIPS3 | CPU_ARCH_MIPS4 | CPU_ARCH_MIPS64)) != 0)
363
364 #define MIPS_HAS_CLOCK (mips_options.mips_cpu_arch >= CPU_ARCH_MIPS3)
365
366 #else /* !_LOCORE */
367
368 #define MIPS_HAS_LLSC 0
369
370 #endif /* !_LOCORE */
371
372 #endif /* run-time test */
373
374 #ifndef _LOCORE
375
376 /*
377 * definitions of cpu-dependent requirements
378 * referenced in generic code
379 */
380 #define cpu_swapout(p) panic("cpu_swapout: can't get here");
381
382 void cpu_intr(uint32_t, uint32_t, vaddr_t, uint32_t);
383
384 /*
385 * Arguments to hardclock and gatherstats encapsulate the previous
386 * machine state in an opaque clockframe.
387 */
388 struct clockframe {
389 vaddr_t pc; /* program counter at time of interrupt */
390 uint32_t sr; /* status register at time of interrupt */
391 u_int ppl; /* previous priority level at time of interrupt */
392 };
393
394 /*
395 * A port must provde CLKF_USERMODE() for use in machine-independent code.
396 * These differ on r4000 and r3000 systems; provide them in the
397 * port-dependent file that includes this one, using the macros below.
398 */
399
400 /* mips1 versions */
401 #define MIPS1_CLKF_USERMODE(framep) ((framep)->sr & MIPS_SR_KU_PREV)
402
403 /* mips3 versions */
404 #define MIPS3_CLKF_USERMODE(framep) ((framep)->sr & MIPS_SR_KSU_USER)
405
406 #define CLKF_PC(framep) ((framep)->pc)
407 #define CLKF_INTR(framep) (0)
408
409 #if defined(MIPS3_PLUS) && !defined(MIPS1) /* XXX bogus! */
410 #define CLKF_USERMODE(framep) MIPS3_CLKF_USERMODE(framep)
411 #endif
412
413 #if !defined(MIPS3_PLUS) && defined(MIPS1) /* XXX bogus! */
414 #define CLKF_USERMODE(framep) MIPS1_CLKF_USERMODE(framep)
415 #endif
416
417 #if defined(MIPS3_PLUS) && defined(MIPS1) /* XXX bogus! */
418 #define CLKF_USERMODE(framep) \
419 ((CPUISMIPS3) ? MIPS3_CLKF_USERMODE(framep): MIPS1_CLKF_USERMODE(framep))
420 #endif
421
422 /*
423 * This is used during profiling to integrate system time. It can safely
424 * assume that the process is resident.
425 */
426 #define PROC_PC(p) \
427 (((struct frame *)(p)->p_md.md_regs)->f_regs[37]) /* XXX PC */
428
429 /*
430 * Preempt the current process if in interrupt from user mode,
431 * or after the current trap/syscall if in system mode.
432 */
433 void cpu_need_resched(struct cpu_info *, int);
434
435 /*
436 * Give a profiling tick to the current process when the user profiling
437 * buffer pages are invalid. On the MIPS, request an ast to send us
438 * through trap, marking the proc as needing a profiling tick.
439 */
440 #define cpu_need_proftick(l) \
441 do { \
442 (l)->l_pflag |= LP_OWEUPC; \
443 aston(l); \
444 } while (/*CONSTCOND*/0)
445
446 /*
447 * Notify the current lwp (l) that it has a signal pending,
448 * process as soon as possible.
449 */
450 #define cpu_signotify(l) aston(l)
451
452 #define aston(l) ((l)->l_md.md_astpending = 1)
453
454 /*
455 * Misc prototypes and variable declarations.
456 */
457 struct lwp;
458 struct user;
459
460 extern struct segtab *segbase; /* current segtab base */
461 extern int mips_poolpage_vmfreelist; /* freelist to allocate poolpages */
462
463 /* copy.S */
464 int8_t ufetch_int8(void *);
465 int16_t ufetch_int16(void *);
466 int32_t ufetch_int32(void *);
467 uint8_t ufetch_uint8(void *);
468 uint16_t ufetch_uint16(void *);
469 uint32_t ufetch_uint32(void *);
470 int8_t ufetch_int8_intrsafe(void *);
471 int16_t ufetch_int16_intrsafe(void *);
472 int32_t ufetch_int32_intrsafe(void *);
473 uint8_t ufetch_uint8_intrsafe(void *);
474 uint16_t ufetch_uint16_intrsafe(void *);
475 uint32_t ufetch_uint32_intrsafe(void *);
476 #ifdef _LP64
477 int64_t ufetch_int64(void *);
478 uint64_t ufetch_uint64(void *);
479 int64_t ufetch_int64_intrsafe(void *);
480 uint64_t ufetch_uint64_intrsafe(void *);
481 #endif
482 char ufetch_char(void *);
483 short ufetch_short(void *);
484 int ufetch_int(void *);
485 long ufetch_long(void *);
486 char ufetch_char_intrsafe(void *);
487 short ufetch_short_intrsafe(void *);
488 int ufetch_int_intrsafe(void *);
489 long ufetch_long_intrsafe(void *);
490
491 u_char ufetch_uchar(void *);
492 u_short ufetch_ushort(void *);
493 u_int ufetch_uint(void *);
494 u_long ufetch_ulong(void *);
495 u_char ufetch_uchar_intrsafe(void *);
496 u_short ufetch_ushort_intrsafe(void *);
497 u_int ufetch_uint_intrsafe(void *);
498 u_long ufetch_ulong_intrsafe(void *);
499 void *ufetch_ptr(void *);
500
501 int ustore_int8(void *, int8_t);
502 int ustore_int16(void *, int16_t);
503 int ustore_int32(void *, int32_t);
504 int ustore_uint8(void *, uint8_t);
505 int ustore_uint16(void *, uint16_t);
506 int ustore_uint32(void *, uint32_t);
507 int ustore_int8_intrsafe(void *, int8_t);
508 int ustore_int16_intrsafe(void *, int16_t);
509 int ustore_int32_intrsafe(void *, int32_t);
510 int ustore_uint8_intrsafe(void *, uint8_t);
511 int ustore_uint16_intrsafe(void *, uint16_t);
512 int ustore_uint32_intrsafe(void *, uint32_t);
513 #ifdef _LP64
514 int ustore_int64(void *, int64_t);
515 int ustore_uint64(void *, uint64_t);
516 int ustore_int64_intrsafe(void *, int64_t);
517 int ustore_uint64_intrsafe(void *, uint64_t);
518 #endif
519 int ustore_char(void *, char);
520 int ustore_char_intrsafe(void *, char);
521 int ustore_short(void *, short);
522 int ustore_short_intrsafe(void *, short);
523 int ustore_int(void *, int);
524 int ustore_int_intrsafe(void *, int);
525 int ustore_long(void *, long);
526 int ustore_long_intrsafe(void *, long);
527 int ustore_uchar(void *, u_char);
528 int ustore_uchar_intrsafe(void *, u_char);
529 int ustore_ushort(void *, u_short);
530 int ustore_ushort_intrsafe(void *, u_short);
531 int ustore_uint(void *, u_int);
532 int ustore_uint_intrsafe(void *, u_int);
533 int ustore_ulong(void *, u_long);
534 int ustore_ulong_intrsafe(void *, u_long);
535 int ustore_ptr(void *, void *);
536 int ustore_ptr_intrsafe(void *, void *);
537
538 int ustore_uint32_isync(void *, uint32_t);
539
540 /* trap.c */
541 void netintr(void);
542 int kdbpeek(vaddr_t);
543
544 /* mips_machdep.c */
545 struct mips_vmfreelist;
546 struct phys_ram_seg;
547 void dumpsys(void);
548 int savectx(struct user *);
549 void mips_vector_init(void);
550 void mips_init_msgbuf(void);
551 void mips_init_lwp0_uarea(void);
552 void mips_page_physload(vaddr_t, vaddr_t,
553 const struct phys_ram_seg *, size_t,
554 const struct mips_vmfreelist *, size_t);
555 void savefpregs(struct lwp *);
556 void loadfpregs(struct lwp *);
557 void cpu_identify(device_t);
558 #ifdef MULTIPROCESSOR
559 void cpu_boot_secondary_processors(void);
560 #endif
561
562 /* locore*.S */
563 int badaddr(void *, size_t);
564 int badaddr64(uint64_t, size_t);
565
566 #endif /* ! _LOCORE */
567 #endif /* _KERNEL */
568 #endif /* _CPU_H_ */
569