2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
3 * Copyright (c) Peter Wemm <peter@netplex.com.au>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #ifndef _MACHINE_PCPU_H_
31 #define _MACHINE_PCPU_H_
33 #include <machine/cpufunc.h>
38 #define PCPU_MD_FIELDS \
40 struct pmap *pc_curpmap; /* current pmap */ \
41 struct thread *pc_fputhread; /* current fpu user */ \
42 struct thread *pc_vecthread; /* current vec user */ \
43 register_t pc_tempsave[CPUSAVE_LEN]; \
44 register_t pc_disisave[CPUSAVE_LEN]; \
45 register_t pc_dbsave[CPUSAVE_LEN];
47 /* Definitions for register offsets within the exception tmp save areas */
48 #define CPUSAVE_R28 0 /* where r28 gets saved */
49 #define CPUSAVE_R29 1 /* where r29 gets saved */
50 #define CPUSAVE_R30 2 /* where r30 gets saved */
51 #define CPUSAVE_R31 3 /* where r31 gets saved */
52 #define CPUSAVE_DAR 4 /* where SPR_DAR gets saved */
53 #define CPUSAVE_DSISR 5 /* where SPR_DSISR gets saved */
54 #define CPUSAVE_SRR0 6 /* where SRR0 gets saved */
55 #define CPUSAVE_SRR1 7 /* where SRR1 gets saved */
59 #define PCPUP ((struct pcpu *) powerpc_get_pcpup())
61 #define PCPU_GET(member) (PCPUP->pc_ ## member)
64 * XXX The implementation of this operation should be made atomic
65 * with respect to preemption.
67 #define PCPU_ADD(member, value) (PCPUP->pc_ ## member += (value))
68 #define PCPU_INC(member) PCPU_ADD(member, 1)
69 #define PCPU_PTR(member) (&PCPUP->pc_ ## member)
70 #define PCPU_SET(member,value) (PCPUP->pc_ ## member = (value))
74 #endif /* !_MACHINE_PCPU_H_ */