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 * $FreeBSD$ 28 */ 29 30 #ifndef _MACHINE_PCPU_H_ 31 #define _MACHINE_PCPU_H_ 32 33 #ifdef _KERNEL 34 #include <machine/cpufunc.h> 35 36 struct pmap; 37 #define CPUSAVE_LEN 8 38 39 #define PCPU_MD_COMMON_FIELDS \ 40 int pc_inside_intr; \ 41 struct pmap *pc_curpmap; /* current pmap */ \ 42 struct thread *pc_fputhread; /* current fpu user */ \ 43 uintptr_t pc_hwref; \ 44 uint32_t pc_pir; \ 45 int pc_bsp:1; \ 46 int pc_awake:1; \ 47 uint32_t pc_ipimask; \ 48 register_t pc_tempsave[CPUSAVE_LEN]; \ 49 register_t pc_disisave[CPUSAVE_LEN]; \ 50 register_t pc_dbsave[CPUSAVE_LEN]; 51 52 #define PCPU_MD_AIM_FIELDS 53 54 #define BOOKE_CRITSAVE_LEN (CPUSAVE_LEN + 2) 55 #define BOOKE_TLB_MAXNEST 3 56 #define BOOKE_TLB_SAVELEN 16 57 #define BOOKE_TLBSAVE_LEN (BOOKE_TLB_SAVELEN * BOOKE_TLB_MAXNEST) 58 59 #define PCPU_MD_BOOKE_FIELDS \ 60 register_t pc_booke_critsave[BOOKE_CRITSAVE_LEN]; \ 61 register_t pc_booke_mchksave[CPUSAVE_LEN]; \ 62 register_t pc_booke_tlbsave[BOOKE_TLBSAVE_LEN]; \ 63 register_t pc_booke_tlb_level; 64 65 /* Definitions for register offsets within the exception tmp save areas */ 66 #define CPUSAVE_R28 0 /* where r28 gets saved */ 67 #define CPUSAVE_R29 1 /* where r29 gets saved */ 68 #define CPUSAVE_R30 2 /* where r30 gets saved */ 69 #define CPUSAVE_R31 3 /* where r31 gets saved */ 70 #define CPUSAVE_AIM_DAR 4 /* where SPR_DAR gets saved */ 71 #define CPUSAVE_AIM_DSISR 5 /* where SPR_DSISR gets saved */ 72 #define CPUSAVE_BOOKE_DEAR 4 /* where SPR_DEAR gets saved */ 73 #define CPUSAVE_BOOKE_ESR 5 /* where SPR_ESR gets saved */ 74 #define CPUSAVE_SRR0 6 /* where SRR0 gets saved */ 75 #define CPUSAVE_SRR1 7 /* where SRR1 gets saved */ 76 77 /* Book-E TLBSAVE is more elaborate */ 78 #define TLBSAVE_BOOKE_LR 0 79 #define TLBSAVE_BOOKE_CR 1 80 #define TLBSAVE_BOOKE_SRR0 2 81 #define TLBSAVE_BOOKE_SRR1 3 82 #define TLBSAVE_BOOKE_R20 4 83 #define TLBSAVE_BOOKE_R21 5 84 #define TLBSAVE_BOOKE_R22 6 85 #define TLBSAVE_BOOKE_R23 7 86 #define TLBSAVE_BOOKE_R24 8 87 #define TLBSAVE_BOOKE_R25 9 88 #define TLBSAVE_BOOKE_R26 10 89 #define TLBSAVE_BOOKE_R27 11 90 #define TLBSAVE_BOOKE_R28 12 91 #define TLBSAVE_BOOKE_R29 13 92 #define TLBSAVE_BOOKE_R30 14 93 #define TLBSAVE_BOOKE_R31 15 94 95 #ifndef COMPILING_LINT 96 #ifdef AIM 97 #define PCPU_MD_FIELDS \ 98 PCPU_MD_COMMON_FIELDS \ 99 PCPU_MD_AIM_FIELDS 100 #endif 101 #ifdef E500 102 #define PCPU_MD_FIELDS \ 103 PCPU_MD_COMMON_FIELDS \ 104 PCPU_MD_BOOKE_FIELDS 105 #endif 106 #else 107 #define PCPU_MD_FIELDS \ 108 PCPU_MD_COMMON_FIELDS \ 109 PCPU_MD_AIM_FIELDS \ 110 PCPU_MD_BOOKE_FIELDS 111 #endif 112 /* 113 * Catch-all for ports (e.g. lsof, used by gtop) 114 */ 115 #ifndef PCPU_MD_FIELDS 116 #define PCPU_MD_FIELDS \ 117 int pc_md_placeholder 118 #endif 119 120 #define pcpup ((struct pcpu *) powerpc_get_pcpup()) 121 122 #define PCPU_GET(member) (pcpup->pc_ ## member) 123 124 /* 125 * XXX The implementation of this operation should be made atomic 126 * with respect to preemption. 127 */ 128 #define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value)) 129 #define PCPU_INC(member) PCPU_ADD(member, 1) 130 #define PCPU_PTR(member) (&pcpup->pc_ ## member) 131 #define PCPU_SET(member,value) (pcpup->pc_ ## member = (value)) 132 133 #endif /* _KERNEL */ 134 135 #endif /* !_MACHINE_PCPU_H_ */ 136