1/* $OpenBSD: cpu.h,v 1.12 2018/02/18 14:50:08 visa Exp $ */
2/*-
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Ralph Campbell and Rick Macklem.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Copyright (C) 1989 Digital Equipment Corporation.
34 * Permission to use, copy, modify, and distribute this software and
35 * its documentation for any purpose and without fee is hereby granted,
36 * provided that the above copyright notice appears in all copies.
37 * Digital Equipment Corporation makes no representations about the
38 * suitability of this software for any purpose. It is provided "as is"
39 * without express or implied warranty.
40 *
41 * from: @(#)cpu.h 8.4 (Berkeley) 1/4/94
42 */
43
44#ifndef _MACHINE_CPU_H_
45#define _MACHINE_CPU_H_
46
47#ifdef _KERNEL
48
49#define OCTEON_MAXCPUS 16
50
51#if defined(MULTIPROCESSOR) && !defined(_LOCORE)
52#define MAXCPUS OCTEON_MAXCPUS
53struct cpu_info;
54void hw_cpu_boot_secondary(struct cpu_info *);
55void hw_cpu_hatch(struct cpu_info *);
56void hw_cpu_spinup_trampoline(struct cpu_info *);
57int hw_ipi_intr_establish(int (*)(void *), u_long);
58void hw_ipi_intr_set(u_long);
59void hw_ipi_intr_clear(u_long);
60
61/* Keep in sync with HW_GET_CPU_INFO(). */
62static inline struct cpu_info *
63hw_getcurcpu(void)
64{
65 struct cpu_info *ci;
66 __asm__ volatile ("dmfc0 %0, $30" /* ErrorEPC */ : "=r" (ci));
67 return ci;
68}
69
70static inline void
71hw_setcurcpu(struct cpu_info *ci)
72{
73 __asm__ volatile ("dmtc0 %0, $30" /* ErrorEPC */ : : "r" (ci));
74}
75#endif /* MULTIPROCESSOR && !_LOCORE */
76
77#define CACHELINESIZE 128
78
79/*
80 * No need to use the per-cpu_info function pointers, as we only support
81 * one processor type.
82 */
83#define Mips_SyncCache(ci) \
84 Octeon_SyncCache((ci))
85#define Mips_InvalidateICache(ci, va, l) \
86 Octeon_InvalidateICache((ci), (va), (l))
87#define Mips_InvalidateICachePage(ci, va) \
88 Octeon_InvalidateICachePage((ci), (va))
89#define Mips_SyncICache(ci) \
90 Octeon_SyncICache((ci))
91#define Mips_SyncDCachePage(ci, va, pa) \
92 Octeon_SyncDCachePage((ci), (va), (pa))
93#define Mips_HitSyncDCachePage(ci, va, pa) \
94 Octeon_SyncDCachePage((ci), (va), (pa))
95#define Mips_HitSyncDCache(ci, va, l) \
96 Octeon_HitSyncDCache((ci), (va), (l))
97#define Mips_IOSyncDCache(ci, va, l, h) \
98 Octeon_IOSyncDCache((ci), (va), (l), (h))
99#define Mips_HitInvalidateDCache(ci, va, l) \
100 Octeon_HitInvalidateDCache((ci), (va), (l))
101
102#endif/* _KERNEL */
103
104#include <mips64/cpu.h>
105
106#endif /* !_MACHINE_CPU_H_ */