pcpu.h revision 198378
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: head/sys/powerpc/include/pcpu.h 198378 2009-10-23 03:17:02Z nwhitehorn $ 28 */ 29 30#ifndef _MACHINE_PCPU_H_ 31#define _MACHINE_PCPU_H_ 32 33#include <machine/cpufunc.h> 34#include <machine/tlb.h> 35 36struct 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 struct thread *pc_vecthread; /* current vec user */ \ 44 uintptr_t pc_hwref; \ 45 uint32_t pc_pir; \ 46 int pc_bsp; \ 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]; 52 53#define PCPU_MD_AIM_FIELDS 54 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) 59 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; \ 66 int pc_tid_next; 67 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 */ 79 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 97 98#ifndef COMPILING_LINT 99#ifdef AIM 100#define PCPU_MD_FIELDS \ 101 PCPU_MD_COMMON_FIELDS \ 102 PCPU_MD_AIM_FIELDS 103#endif 104#ifdef E500 105#define PCPU_MD_FIELDS \ 106 PCPU_MD_COMMON_FIELDS \ 107 PCPU_MD_BOOKE_FIELDS 108#endif 109#else 110#define PCPU_MD_FIELDS \ 111 PCPU_MD_COMMON_FIELDS \ 112 PCPU_MD_AIM_FIELDS \ 113 PCPU_MD_BOOKE_FIELDS 114#endif 115/* 116 * Catch-all for ports (e.g. lsof, used by gtop) 117 */ 118#ifndef PCPU_MD_FIELDS 119#define PCPU_MD_FIELDS \ 120 int pc_md_placeholder 121#endif 122 123#ifdef _KERNEL 124 125#define pcpup ((struct pcpu *) powerpc_get_pcpup()) 126 127#define PCPU_GET(member) (pcpup->pc_ ## member) 128 129/* 130 * XXX The implementation of this operation should be made atomic 131 * with respect to preemption. 132 */ 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)) 137 138#endif /* _KERNEL */ 139 140#endif /* !_MACHINE_PCPU_H_ */ 141