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cpu.h revision 1.90.16.18
      1 /*	$NetBSD: cpu.h,v 1.90.16.18 2010/02/05 07:36:51 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 	struct lwp *ci_softlwps[SOFTINT_COUNT];
    142 #define	ci_softints	ci_data.cpu_softints
    143 	/*
    144 	 * Per-cpu pmap information
    145 	 */
    146 	struct segtab *ci_pmap_segbase;
    147 	vaddr_t ci_pmap_srcbase;	/* starting VA of ephemeral src space */
    148 	vaddr_t ci_pmap_dstbase;	/* starting VA of ephemeral dst space */
    149 	uint32_t ci_pmap_asid_next;	/* next asid to be assigned */
    150 	uint32_t ci_pmap_asid_generation; /* current asid generation */
    151 	uint32_t ci_pmap_asid_reserved;	/* base of ASID space */
    152 	uint32_t ci_pmap_asid_max;	/* max (exclusive) assignable asid */
    153 };
    154 
    155 #define	CPU_INFO_ITERATOR		int
    156 #define	CPU_INFO_FOREACH(cii, ci)	\
    157     (void)(cii), ci = &cpu_info_store; ci != NULL; ci = ci->ci_next
    158 
    159 #endif /* !_LOCORE */
    160 #endif /* _KERNEL */
    161 
    162 /*
    163  * CTL_MACHDEP definitions.
    164  */
    165 #define CPU_CONSDEV		1	/* dev_t: console terminal device */
    166 #define CPU_BOOTED_KERNEL	2	/* string: booted kernel name */
    167 #define CPU_ROOT_DEVICE		3	/* string: root device name */
    168 #define CPU_LLSC		4	/* OS/CPU supports LL/SC instruction */
    169 
    170 /*
    171  * Platform can override, but note this breaks userland compatibility
    172  * with other mips platforms.
    173  */
    174 #ifndef CPU_MAXID
    175 #define CPU_MAXID		5	/* number of valid machdep ids */
    176 
    177 #endif
    178 
    179 #ifdef _KERNEL
    180 #if defined(_LKM) || defined(_STANDALONE)
    181 /* Assume all CPU architectures are valid for LKM's and standlone progs */
    182 #define	MIPS1	1
    183 #define	MIPS3	1
    184 #define	MIPS4	1
    185 #define	MIPS32	1
    186 #define	MIPS64	1
    187 #endif
    188 
    189 #if (MIPS1 + MIPS3 + MIPS4 + MIPS32 + MIPS64) == 0
    190 #error at least one of MIPS1, MIPS3, MIPS4, MIPS32 or MIPS64 must be specified
    191 #endif
    192 
    193 /* Shortcut for MIPS3 or above defined */
    194 #if defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)
    195 #define	MIPS3_PLUS	1
    196 #else
    197 #undef MIPS3_PLUS
    198 #endif
    199 
    200 /*
    201  * Macros to find the CPU architecture we're on at run-time,
    202  * or if possible, at compile-time.
    203  */
    204 
    205 #define	CPU_ARCH_MIPSx	0		/* XXX unknown */
    206 #define	CPU_ARCH_MIPS1	(1 << 0)
    207 #define	CPU_ARCH_MIPS2	(1 << 1)
    208 #define	CPU_ARCH_MIPS3	(1 << 2)
    209 #define	CPU_ARCH_MIPS4	(1 << 3)
    210 #define	CPU_ARCH_MIPS5	(1 << 4)
    211 #define	CPU_ARCH_MIPS32	(1 << 5)
    212 #define	CPU_ARCH_MIPS64	(1 << 6)
    213 
    214 /* Note: must be kept in sync with -ffixed-?? Makefile.mips. */
    215 #define MIPS_CURLWP             $24
    216 #define MIPS_CURLWP_QUOTED      "$24"
    217 #define MIPS_CURLWP_LABEL	_L_T8
    218 #define TF_MIPS_CURLWP(x)	TF_REG_T8(x)
    219 
    220 #ifndef _LOCORE
    221 
    222 extern struct cpu_info cpu_info_store;
    223 register struct lwp *mips_curlwp asm(MIPS_CURLWP_QUOTED);
    224 
    225 #define	curlwp			mips_curlwp
    226 #define	curcpu()		(curlwp->l_cpu)
    227 #define	curpcb			((struct pcb *)curlwp->l_addr)
    228 #define	fpcurlwp		(curcpu()->ci_fpcurlwp)
    229 #ifdef MULTIPROCESSOR
    230 #define	cpu_number()		(curcpu()->ci_cpuid)
    231 #else
    232 #define	cpu_number()		(0)
    233 #endif
    234 #define	cpu_proc_fork(p1, p2)	((void)((p2)->p_md.md_abi = (p1)->p_md.md_abi))
    235 
    236 /* XXX simonb
    237  * Should the following be in a cpu_info type structure?
    238  * And how many of these are per-cpu vs. per-system?  (Ie,
    239  * we can assume that all cpus have the same mmu-type, but
    240  * maybe not that all cpus run at the same clock speed.
    241  * Some SGI's apparently support R12k and R14k in the same
    242  * box.)
    243  */
    244 struct mips_options {
    245 	const struct pridtab *mips_cpu;
    246 
    247 	u_int mips_cpu_arch;
    248 	u_int mips_cpu_mhz; /* CPU speed in MHz, estimated by mc_cpuspeed(). */
    249 	u_int mips_cpu_flags;
    250 	u_int mips_num_tlb_entries;
    251 	mips_prid_t mips_cpu_id;
    252 	mips_prid_t mips_fpu_id;
    253 	bool mips_has_r4k_mmu;
    254 	bool mips_has_llsc;
    255 	u_int mips3_pg_shift;
    256 	u_int mips3_pg_cached;
    257 #ifdef MIPS3_PLUS
    258 #ifdef _LP64
    259 	uint64_t mips3_xkphys_cached;
    260 #endif
    261 	uint64_t mips3_tlb_vpn_mask;
    262 	uint64_t mips3_tlb_pfn_mask;
    263 	uint32_t mips3_tlb_pg_mask;
    264 #endif
    265 };
    266 extern struct mips_options mips_options;
    267 
    268 #define	CPU_MIPS_R4K_MMU		0x0001
    269 #define	CPU_MIPS_NO_LLSC		0x0002
    270 #define	CPU_MIPS_CAUSE_IV		0x0004
    271 #define	CPU_MIPS_HAVE_SPECIAL_CCA	0x0008	/* Defaults to '3' if not set. */
    272 #define	CPU_MIPS_CACHED_CCA_MASK	0x0070
    273 #define	CPU_MIPS_CACHED_CCA_SHIFT	 4
    274 #define	CPU_MIPS_DOUBLE_COUNT		0x0080	/* 1 cp0 count == 2 clock cycles */
    275 #define	CPU_MIPS_USE_WAIT		0x0100	/* Use "wait"-based cpu_idle() */
    276 #define	CPU_MIPS_NO_WAIT		0x0200	/* Inverse of previous, for mips32/64 */
    277 #define	CPU_MIPS_D_CACHE_COHERENT	0x0400	/* D-cache is fully coherent */
    278 #define	CPU_MIPS_I_D_CACHE_COHERENT	0x0800	/* I-cache funcs don't need to flush the D-cache */
    279 #define	CPU_MIPS_NO_LLADDR		0x1000
    280 #define	CPU_MIPS_HAVE_MxCR		0x2000	/* have mfcr, mtcr insns */
    281 #define	MIPS_NOT_SUPP			0x8000
    282 
    283 #endif	/* !_LOCORE */
    284 
    285 #if ((MIPS1 + MIPS3 + MIPS4 + MIPS32 + MIPS64) == 1) || defined(_LOCORE)
    286 
    287 #if defined(MIPS1)
    288 
    289 # define CPUISMIPS3		0
    290 # define CPUIS64BITS		0
    291 # define CPUISMIPS32		0
    292 # define CPUISMIPS64		0
    293 # define CPUISMIPSNN		0
    294 # define MIPS_HAS_R4K_MMU	0
    295 # define MIPS_HAS_CLOCK		0
    296 # define MIPS_HAS_LLSC		0
    297 # define MIPS_HAS_LLADDR	0
    298 
    299 #elif defined(MIPS3) || defined(MIPS4)
    300 
    301 # define CPUISMIPS3		1
    302 # define CPUIS64BITS		1
    303 # define CPUISMIPS32		0
    304 # define CPUISMIPS64		0
    305 # define CPUISMIPSNN		0
    306 # define MIPS_HAS_R4K_MMU	1
    307 # define MIPS_HAS_CLOCK		1
    308 # if defined(_LOCORE)
    309 #  if !defined(MIPS3_5900) && !defined(MIPS3_4100)
    310 #   define MIPS_HAS_LLSC	1
    311 #  else
    312 #   define MIPS_HAS_LLSC	0
    313 #  endif
    314 # else	/* _LOCORE */
    315 #  define MIPS_HAS_LLSC		(mips_options.mips_has_llsc)
    316 # endif	/* _LOCORE */
    317 # define MIPS_HAS_LLADDR	((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
    318 
    319 #elif defined(MIPS32)
    320 
    321 # define CPUISMIPS3		1
    322 # define CPUIS64BITS		0
    323 # define CPUISMIPS32		1
    324 # define CPUISMIPS64		0
    325 # define CPUISMIPSNN		1
    326 # define MIPS_HAS_R4K_MMU	1
    327 # define MIPS_HAS_CLOCK		1
    328 # define MIPS_HAS_LLSC		1
    329 # define MIPS_HAS_LLADDR	((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
    330 
    331 #elif defined(MIPS64)
    332 
    333 # define CPUISMIPS3		1
    334 # define CPUIS64BITS		1
    335 # define CPUISMIPS32		0
    336 # define CPUISMIPS64		1
    337 # define CPUISMIPSNN		1
    338 # define MIPS_HAS_R4K_MMU	1
    339 # define MIPS_HAS_CLOCK		1
    340 # define MIPS_HAS_LLSC		1
    341 # define MIPS_HAS_LLADDR	((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
    342 
    343 #endif
    344 
    345 #else /* run-time test */
    346 
    347 #ifndef	_LOCORE
    348 
    349 #define	MIPS_HAS_R4K_MMU	(mips_options.mips_has_r4k_mmu)
    350 #define	MIPS_HAS_LLSC		(mips_options.mips_has_llsc)
    351 #define	MIPS_HAS_LLADDR		((mips_options.mips_cpu_flags & CPU_MIPS_NO_LLADDR) == 0)
    352 
    353 /* This test is ... rather bogus */
    354 #define	CPUISMIPS3	((mips_options.mips_cpu_arch & \
    355 	(CPU_ARCH_MIPS3 | CPU_ARCH_MIPS4 | CPU_ARCH_MIPS32 | CPU_ARCH_MIPS64)) != 0)
    356 
    357 /* And these aren't much better while the previous test exists as is... */
    358 #define	CPUISMIPS4	((mips_options.mips_cpu_arch & CPU_ARCH_MIPS4) != 0)
    359 #define	CPUISMIPS5	((mips_options.mips_cpu_arch & CPU_ARCH_MIPS5) != 0)
    360 #define	CPUISMIPS32	((mips_options.mips_cpu_arch & CPU_ARCH_MIPS32) != 0)
    361 #define	CPUISMIPS64	((mips_options.mips_cpu_arch & CPU_ARCH_MIPS64) != 0)
    362 #define	CPUISMIPSNN	((mips_options.mips_cpu_arch & (CPU_ARCH_MIPS32 | CPU_ARCH_MIPS64)) != 0)
    363 #define	CPUIS64BITS	((mips_options.mips_cpu_arch & \
    364 	(CPU_ARCH_MIPS3 | CPU_ARCH_MIPS4 | CPU_ARCH_MIPS64)) != 0)
    365 
    366 #define	MIPS_HAS_CLOCK	(mips_options.mips_cpu_arch >= CPU_ARCH_MIPS3)
    367 
    368 #else	/* !_LOCORE */
    369 
    370 #define	MIPS_HAS_LLSC	0
    371 
    372 #endif	/* !_LOCORE */
    373 
    374 #endif /* run-time test */
    375 
    376 #ifndef	_LOCORE
    377 
    378 /*
    379  * definitions of cpu-dependent requirements
    380  * referenced in generic code
    381  */
    382 #define	cpu_swapout(p)			panic("cpu_swapout: can't get here");
    383 
    384 void cpu_intr(uint32_t, uint32_t, vaddr_t, uint32_t);
    385 
    386 /*
    387  * Arguments to hardclock and gatherstats encapsulate the previous
    388  * machine state in an opaque clockframe.
    389  */
    390 struct clockframe {
    391 	vaddr_t	pc;	/* program counter at time of interrupt */
    392 	uint32_t	sr;	/* status register at time of interrupt */
    393 	u_int		ppl;	/* previous priority level at time of interrupt */
    394 };
    395 
    396 /*
    397  * A port must provde CLKF_USERMODE() for use in machine-independent code.
    398  * These differ on r4000 and r3000 systems; provide them in the
    399  * port-dependent file that includes this one, using the macros below.
    400  */
    401 
    402 /* mips1 versions */
    403 #define	MIPS1_CLKF_USERMODE(framep)	((framep)->sr & MIPS_SR_KU_PREV)
    404 
    405 /* mips3 versions */
    406 #define	MIPS3_CLKF_USERMODE(framep)	((framep)->sr & MIPS_SR_KSU_USER)
    407 
    408 #define	CLKF_PC(framep)		((framep)->pc)
    409 #define	CLKF_INTR(framep)	(0)
    410 
    411 #if defined(MIPS3_PLUS) && !defined(MIPS1)		/* XXX bogus! */
    412 #define	CLKF_USERMODE(framep)	MIPS3_CLKF_USERMODE(framep)
    413 #endif
    414 
    415 #if !defined(MIPS3_PLUS) && defined(MIPS1)		/* XXX bogus! */
    416 #define	CLKF_USERMODE(framep)	MIPS1_CLKF_USERMODE(framep)
    417 #endif
    418 
    419 #if defined(MIPS3_PLUS) && defined(MIPS1)		/* XXX bogus! */
    420 #define CLKF_USERMODE(framep) \
    421     ((CPUISMIPS3) ? MIPS3_CLKF_USERMODE(framep):  MIPS1_CLKF_USERMODE(framep))
    422 #endif
    423 
    424 /*
    425  * This is used during profiling to integrate system time.  It can safely
    426  * assume that the process is resident.
    427  */
    428 #define	PROC_PC(p)							\
    429 	(((struct frame *)(p)->p_md.md_regs)->f_regs[37])	/* XXX PC */
    430 
    431 /*
    432  * Preempt the current process if in interrupt from user mode,
    433  * or after the current trap/syscall if in system mode.
    434  */
    435 void	cpu_need_resched(struct cpu_info *, int);
    436 
    437 /*
    438  * Give a profiling tick to the current process when the user profiling
    439  * buffer pages are invalid.  On the MIPS, request an ast to send us
    440  * through trap, marking the proc as needing a profiling tick.
    441  */
    442 #define	cpu_need_proftick(l)						\
    443 do {									\
    444 	(l)->l_pflag |= LP_OWEUPC;					\
    445 	aston(l);							\
    446 } while (/*CONSTCOND*/0)
    447 
    448 /*
    449  * Notify the current lwp (l) that it has a signal pending,
    450  * process as soon as possible.
    451  */
    452 #define	cpu_signotify(l)	aston(l)
    453 
    454 #define aston(l)		((l)->l_md.md_astpending = 1)
    455 
    456 /*
    457  * Misc prototypes and variable declarations.
    458  */
    459 struct lwp;
    460 struct user;
    461 
    462 extern struct segtab *segbase;		/* current segtab base */
    463 extern int mips_poolpage_vmfreelist;	/* freelist to allocate poolpages */
    464 
    465 /* copy.S */
    466 int8_t	ufetch_int8(void *);
    467 int16_t	ufetch_int16(void *);
    468 int32_t ufetch_int32(void *);
    469 uint8_t	ufetch_uint8(void *);
    470 uint16_t ufetch_uint16(void *);
    471 uint32_t ufetch_uint32(void *);
    472 int8_t	ufetch_int8_intrsafe(void *);
    473 int16_t	ufetch_int16_intrsafe(void *);
    474 int32_t ufetch_int32_intrsafe(void *);
    475 uint8_t	ufetch_uint8_intrsafe(void *);
    476 uint16_t ufetch_uint16_intrsafe(void *);
    477 uint32_t ufetch_uint32_intrsafe(void *);
    478 #ifdef _LP64
    479 int64_t ufetch_int64(void *);
    480 uint64_t ufetch_uint64(void *);
    481 int64_t ufetch_int64_intrsafe(void *);
    482 uint64_t ufetch_uint64_intrsafe(void *);
    483 #endif
    484 char	ufetch_char(void *);
    485 short	ufetch_short(void *);
    486 int	ufetch_int(void *);
    487 long	ufetch_long(void *);
    488 char	ufetch_char_intrsafe(void *);
    489 short	ufetch_short_intrsafe(void *);
    490 int	ufetch_int_intrsafe(void *);
    491 long	ufetch_long_intrsafe(void *);
    492 
    493 u_char	ufetch_uchar(void *);
    494 u_short	ufetch_ushort(void *);
    495 u_int	ufetch_uint(void *);
    496 u_long	ufetch_ulong(void *);
    497 u_char	ufetch_uchar_intrsafe(void *);
    498 u_short	ufetch_ushort_intrsafe(void *);
    499 u_int	ufetch_uint_intrsafe(void *);
    500 u_long	ufetch_ulong_intrsafe(void *);
    501 void 	*ufetch_ptr(void *);
    502 
    503 int	ustore_int8(void *, int8_t);
    504 int	ustore_int16(void *, int16_t);
    505 int	ustore_int32(void *, int32_t);
    506 int	ustore_uint8(void *, uint8_t);
    507 int	ustore_uint16(void *, uint16_t);
    508 int	ustore_uint32(void *, uint32_t);
    509 int	ustore_int8_intrsafe(void *, int8_t);
    510 int	ustore_int16_intrsafe(void *, int16_t);
    511 int	ustore_int32_intrsafe(void *, int32_t);
    512 int	ustore_uint8_intrsafe(void *, uint8_t);
    513 int	ustore_uint16_intrsafe(void *, uint16_t);
    514 int	ustore_uint32_intrsafe(void *, uint32_t);
    515 #ifdef _LP64
    516 int	ustore_int64(void *, int64_t);
    517 int	ustore_uint64(void *, uint64_t);
    518 int	ustore_int64_intrsafe(void *, int64_t);
    519 int	ustore_uint64_intrsafe(void *, uint64_t);
    520 #endif
    521 int	ustore_char(void *, char);
    522 int	ustore_char_intrsafe(void *, char);
    523 int	ustore_short(void *, short);
    524 int	ustore_short_intrsafe(void *, short);
    525 int	ustore_int(void *, int);
    526 int	ustore_int_intrsafe(void *, int);
    527 int	ustore_long(void *, long);
    528 int	ustore_long_intrsafe(void *, long);
    529 int	ustore_uchar(void *, u_char);
    530 int	ustore_uchar_intrsafe(void *, u_char);
    531 int	ustore_ushort(void *, u_short);
    532 int	ustore_ushort_intrsafe(void *, u_short);
    533 int	ustore_uint(void *, u_int);
    534 int	ustore_uint_intrsafe(void *, u_int);
    535 int	ustore_ulong(void *, u_long);
    536 int	ustore_ulong_intrsafe(void *, u_long);
    537 int 	ustore_ptr(void *, void *);
    538 int	ustore_ptr_intrsafe(void *, void *);
    539 
    540 int	ustore_uint32_isync(void *, uint32_t);
    541 
    542 /* trap.c */
    543 void	netintr(void);
    544 int	kdbpeek(vaddr_t);
    545 
    546 /* mips_machdep.c */
    547 struct mips_vmfreelist;
    548 struct phys_ram_seg;
    549 void	dumpsys(void);
    550 int	savectx(struct user *);
    551 void	mips_vector_init(void);
    552 void	mips_init_msgbuf(void);
    553 void	mips_init_lwp0_uarea(void);
    554 void	mips_page_physload(vaddr_t, vaddr_t,
    555 	    const struct phys_ram_seg *, size_t,
    556 	    const struct mips_vmfreelist *, size_t);
    557 void	savefpregs(struct lwp *);
    558 void	loadfpregs(struct lwp *);
    559 void	cpu_identify(device_t);
    560 #ifdef MULTIPROCESSOR
    561 void	cpu_boot_secondary_processors(void);
    562 #endif
    563 
    564 /* locore*.S */
    565 int	badaddr(void *, size_t);
    566 int	badaddr64(uint64_t, size_t);
    567 
    568 /* vm_machdep.c */
    569 void	cpu_uarea_remap(struct lwp *);
    570 
    571 #endif /* ! _LOCORE */
    572 #endif /* _KERNEL */
    573 #endif /* _CPU_H_ */
    574