1/*-
2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27
27 * $FreeBSD: head/sys/sparc64/include/pcpu.h 167429 2007-03-11 05:54:29Z alc $
28 */
29
30#ifndef _MACHINE_PCPU_H_
31#define _MACHINE_PCPU_H_
32
33#ifdef _KERNEL
34
35#include <machine/asmacros.h>
36#include <machine/frame.h>
37#include <machine/intr_machdep.h>
38
39#define ALT_STACK_SIZE 128
40
41struct pmap;
42
43/*
44 * Inside the kernel, the globally reserved register g7 is used to
45 * point at the globaldata structure.
46 */
47#define PCPU_MD_FIELDS \
48 struct intr_request pc_irpool[IR_FREE]; \
49 struct intr_request *pc_irhead; \
50 struct intr_request **pc_irtail; \
51 struct intr_request *pc_irfree; \
52 struct pmap *pc_pmap; \
53 vm_offset_t pc_addr; \
54 u_long pc_tickref; \
55 u_long pc_tickadj; \
56 u_int pc_mid; \
57 u_int pc_node; \
58 u_int pc_tlb_ctx; \
59 u_int pc_tlb_ctx_max; \
60 u_int pc_tlb_ctx_min
61
62struct pcb;
63struct pcpu;
64
65register struct pcb *curpcb __asm__(__XSTRING(PCB_REG));
66register struct pcpu *pcpup __asm__(__XSTRING(PCPU_REG));
67
68#define PCPU_GET(member) (pcpup->pc_ ## member)
69
70/*
71 * XXX The implementation of this operation should be made atomic
72 * with respect to preemption.
73 */
74#define PCPU_LAZY_INC(member) (++pcpup->pc_ ## member)
75#define PCPU_PTR(member) (&pcpup->pc_ ## member)
76#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
77
78#endif /* _KERNEL */
79
80#endif /* !_MACHINE_PCPU_H_ */
2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27
27 * $FreeBSD: head/sys/sparc64/include/pcpu.h 167429 2007-03-11 05:54:29Z alc $
28 */
29
30#ifndef _MACHINE_PCPU_H_
31#define _MACHINE_PCPU_H_
32
33#ifdef _KERNEL
34
35#include <machine/asmacros.h>
36#include <machine/frame.h>
37#include <machine/intr_machdep.h>
38
39#define ALT_STACK_SIZE 128
40
41struct pmap;
42
43/*
44 * Inside the kernel, the globally reserved register g7 is used to
45 * point at the globaldata structure.
46 */
47#define PCPU_MD_FIELDS \
48 struct intr_request pc_irpool[IR_FREE]; \
49 struct intr_request *pc_irhead; \
50 struct intr_request **pc_irtail; \
51 struct intr_request *pc_irfree; \
52 struct pmap *pc_pmap; \
53 vm_offset_t pc_addr; \
54 u_long pc_tickref; \
55 u_long pc_tickadj; \
56 u_int pc_mid; \
57 u_int pc_node; \
58 u_int pc_tlb_ctx; \
59 u_int pc_tlb_ctx_max; \
60 u_int pc_tlb_ctx_min
61
62struct pcb;
63struct pcpu;
64
65register struct pcb *curpcb __asm__(__XSTRING(PCB_REG));
66register struct pcpu *pcpup __asm__(__XSTRING(PCPU_REG));
67
68#define PCPU_GET(member) (pcpup->pc_ ## member)
69
70/*
71 * XXX The implementation of this operation should be made atomic
72 * with respect to preemption.
73 */
74#define PCPU_LAZY_INC(member) (++pcpup->pc_ ## member)
75#define PCPU_PTR(member) (&pcpup->pc_ ## member)
76#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
77
78#endif /* _KERNEL */
79
80#endif /* !_MACHINE_PCPU_H_ */