1 /*-
2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3 * Copyright (c) Peter Wemm <peter@netplex.com.au>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * from: src/sys/alpha/include/pcpu.h,v 1.15 2004/11/05 19:16:44 jhb
28 * $FreeBSD: releng/10.0/sys/mips/include/pcpu.h 249265 2013-04-08 19:19:10Z glebius $
29 */
30
31 #ifndef _MACHINE_PCPU_H_
32 #define _MACHINE_PCPU_H_
33
34 #include <machine/pte.h>
35
36 #define PCPU_MD_COMMON_FIELDS \
37 pd_entry_t *pc_segbase; /* curthread segbase */ \
38 struct pmap *pc_curpmap; /* pmap of curthread */ \
39 u_int32_t pc_next_asid; /* next ASID to alloc */ \
40 u_int32_t pc_asid_generation; /* current ASID generation */ \
41 u_int pc_pending_ipis; /* IPIs pending to this CPU */
42
43 #ifdef __mips_n64
44 #define PCPU_MD_MIPS64_FIELDS \
45 PCPU_MD_COMMON_FIELDS \
46 char __pad[61]
47 #else
48 #define PCPU_MD_MIPS32_FIELDS \
49 PCPU_MD_COMMON_FIELDS \
50 char __pad[133]
51 #endif
52
53 #ifdef __mips_n64
54 #define PCPU_MD_FIELDS PCPU_MD_MIPS64_FIELDS
55 #else
56 #define PCPU_MD_FIELDS PCPU_MD_MIPS32_FIELDS
57 #endif
58
59 #ifdef _KERNEL
60
61 extern char pcpu_space[MAXCPU][PAGE_SIZE * 2];
62 #define PCPU_ADDR(cpu) (struct pcpu *)(pcpu_space[(cpu)])
63
64 extern struct pcpu *pcpup;
65 #define PCPUP pcpup
66
67 #define PCPU_ADD(member, value) (PCPUP->pc_ ## member += (value))
68 #define PCPU_GET(member) (PCPUP->pc_ ## member)
69 #define PCPU_INC(member) PCPU_ADD(member, 1)
70 #define PCPU_PTR(member) (&PCPUP->pc_ ## member)
71 #define PCPU_SET(member,value) (PCPUP->pc_ ## member = (value))
72 #define PCPU_LAZY_INC(member) (++PCPUP->pc_ ## member)
73
74 #ifdef SMP
75 /*
76 * Instantiate the wired TLB entry at PCPU_TLB_ENTRY to map 'pcpu' at 'pcpup'.
77 */
78 void mips_pcpu_tlb_init(struct pcpu *pcpu);
79 #endif
80
81 #endif /* _KERNEL */
82
83 #endif /* !_MACHINE_PCPU_H_ */
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