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>
34 #include <machine/tlb.h>
39 #define PCPU_MD_COMMON_FIELDS \
41 struct pmap *pc_curpmap; /* current pmap */ \
42 struct thread *pc_fputhread; /* current fpu user */ \
43 struct thread *pc_vecthread; /* current vec user */ \
47 volatile int pc_awake; \
48 uint32_t pc_ipimask; \
49 register_t pc_tempsave[CPUSAVE_LEN]; \
50 register_t pc_disisave[CPUSAVE_LEN]; \
51 register_t pc_dbsave[CPUSAVE_LEN];
53 #define PCPU_MD_AIM_FIELDS
55 #define BOOKE_CRITSAVE_LEN (CPUSAVE_LEN + 2)
56 #define BOOKE_TLB_MAXNEST 3
57 #define BOOKE_TLB_SAVELEN 16
58 #define BOOKE_TLBSAVE_LEN (BOOKE_TLB_SAVELEN * BOOKE_TLB_MAXNEST)
60 #define PCPU_MD_BOOKE_FIELDS \
61 register_t pc_booke_critsave[BOOKE_CRITSAVE_LEN]; \
62 register_t pc_booke_mchksave[CPUSAVE_LEN]; \
63 register_t pc_booke_tlbsave[BOOKE_TLBSAVE_LEN]; \
64 register_t pc_booke_tlb_level; \
65 uint32_t *pc_booke_tlb_lock; \
68 /* Definitions for register offsets within the exception tmp save areas */
69 #define CPUSAVE_R28 0 /* where r28 gets saved */
70 #define CPUSAVE_R29 1 /* where r29 gets saved */
71 #define CPUSAVE_R30 2 /* where r30 gets saved */
72 #define CPUSAVE_R31 3 /* where r31 gets saved */
73 #define CPUSAVE_AIM_DAR 4 /* where SPR_DAR gets saved */
74 #define CPUSAVE_AIM_DSISR 5 /* where SPR_DSISR gets saved */
75 #define CPUSAVE_BOOKE_DEAR 4 /* where SPR_DEAR gets saved */
76 #define CPUSAVE_BOOKE_ESR 5 /* where SPR_ESR gets saved */
77 #define CPUSAVE_SRR0 6 /* where SRR0 gets saved */
78 #define CPUSAVE_SRR1 7 /* where SRR1 gets saved */
80 /* Book-E TLBSAVE is more elaborate */
81 #define TLBSAVE_BOOKE_LR 0
82 #define TLBSAVE_BOOKE_CR 1
83 #define TLBSAVE_BOOKE_SRR0 2
84 #define TLBSAVE_BOOKE_SRR1 3
85 #define TLBSAVE_BOOKE_R20 4
86 #define TLBSAVE_BOOKE_R21 5
87 #define TLBSAVE_BOOKE_R22 6
88 #define TLBSAVE_BOOKE_R23 7
89 #define TLBSAVE_BOOKE_R24 8
90 #define TLBSAVE_BOOKE_R25 9
91 #define TLBSAVE_BOOKE_R26 10
92 #define TLBSAVE_BOOKE_R27 11
93 #define TLBSAVE_BOOKE_R28 12
94 #define TLBSAVE_BOOKE_R29 13
95 #define TLBSAVE_BOOKE_R30 14
96 #define TLBSAVE_BOOKE_R31 15
98 #ifndef COMPILING_LINT
100 #define PCPU_MD_FIELDS \
101 PCPU_MD_COMMON_FIELDS \
105 #define PCPU_MD_FIELDS \
106 PCPU_MD_COMMON_FIELDS \
110 #define PCPU_MD_FIELDS \
111 PCPU_MD_COMMON_FIELDS \
116 * Catch-all for ports (e.g. lsof, used by gtop)
118 #ifndef PCPU_MD_FIELDS
119 #define PCPU_MD_FIELDS \
120 int pc_md_placeholder
125 #define pcpup ((struct pcpu *) powerpc_get_pcpup())
127 #define PCPU_GET(member) (pcpup->pc_ ## member)
130 * XXX The implementation of this operation should be made atomic
131 * with respect to preemption.
133 #define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value))
134 #define PCPU_INC(member) PCPU_ADD(member, 1)
135 #define PCPU_PTR(member) (&pcpup->pc_ ## member)
136 #define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
140 #endif /* !_MACHINE_PCPU_H_ */