pcpu.h revision 176742
119872Swollman/*- 219872Swollman * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org> 319872Swollman * Copyright (c) Peter Wemm <peter@netplex.com.au> 419872Swollman * All rights reserved. 519872Swollman * 619872Swollman * Redistribution and use in source and binary forms, with or without 719872Swollman * modification, are permitted provided that the following conditions 819872Swollman * are met: 919872Swollman * 1. Redistributions of source code must retain the above copyright 1019872Swollman * notice, this list of conditions and the following disclaimer. 1119872Swollman * 2. Redistributions in binary form must reproduce the above copyright 1219872Swollman * notice, this list of conditions and the following disclaimer in the 1319872Swollman * documentation and/or other materials provided with the distribution. 1419872Swollman * 1519872Swollman * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1619872Swollman * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1719872Swollman * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1819872Swollman * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1919872Swollman * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2019872Swollman * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2119872Swollman * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2219872Swollman * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2319872Swollman * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2419872Swollman * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2519872Swollman * SUCH DAMAGE. 2619872Swollman * 2719872Swollman * $FreeBSD: head/sys/powerpc/include/pcpu.h 176742 2008-03-02 17:05:57Z raj $ 2819872Swollman */ 2919872Swollman 3019872Swollman#ifndef _MACHINE_PCPU_H_ 3119872Swollman#define _MACHINE_PCPU_H_ 3219872Swollman 3319872Swollman#ifdef _KERNEL 3419872Swollman#include <machine/cpufunc.h> 3530763Scharnier 3630763Scharnierstruct pmap; 3730999Sjoerg#define CPUSAVE_LEN 8 3830763Scharnier 3930763Scharnier#define PCPU_MD_COMMON_FIELDS \ 4019872Swollman int pc_inside_intr; \ 4119872Swollman struct pmap *pc_curpmap; /* current pmap */ \ 4219872Swollman struct thread *pc_fputhread; /* current fpu user */ \ 4319872Swollman register_t pc_tempsave[CPUSAVE_LEN]; \ 4419872Swollman register_t pc_disisave[CPUSAVE_LEN]; \ 4519872Swollman register_t pc_dbsave[CPUSAVE_LEN]; 4619872Swollman 4719872Swollman#define PCPU_MD_AIM_FIELDS 4819872Swollman 4919872Swollman#define BOOKE_CRITSAVE_LEN (CPUSAVE_LEN + 2) 5019872Swollman#define BOOKE_TLB_MAXNEST 3 5119872Swollman#define BOOKE_TLB_SAVELEN 16 5219872Swollman#define BOOKE_TLBSAVE_LEN (BOOKE_TLB_SAVELEN * BOOKE_TLB_MAXNEST) 5319872Swollman 5419872Swollman#define PCPU_MD_BOOKE_FIELDS \ 5519872Swollman register_t pc_booke_critsave[BOOKE_CRITSAVE_LEN]; \ 5619872Swollman register_t pc_booke_mchksave[CPUSAVE_LEN]; \ 5719872Swollman register_t pc_booke_tlbsave[BOOKE_TLBSAVE_LEN]; \ 5819872Swollman register_t pc_booke_tlb_level; 5919872Swollman 6019872Swollman/* Definitions for register offsets within the exception tmp save areas */ 6119872Swollman#define CPUSAVE_R28 0 /* where r28 gets saved */ 6219872Swollman#define CPUSAVE_R29 1 /* where r29 gets saved */ 6319872Swollman#define CPUSAVE_R30 2 /* where r30 gets saved */ 6419872Swollman#define CPUSAVE_R31 3 /* where r31 gets saved */ 6519872Swollman#define CPUSAVE_AIM_DAR 4 /* where SPR_DAR gets saved */ 6619872Swollman#define CPUSAVE_AIM_DSISR 5 /* where SPR_DSISR gets saved */ 6719872Swollman#define CPUSAVE_BOOKE_DEAR 4 /* where SPR_DEAR gets saved */ 6819872Swollman#define CPUSAVE_BOOKE_ESR 5 /* where SPR_ESR gets saved */ 6919872Swollman#define CPUSAVE_SRR0 6 /* where SRR0 gets saved */ 7019872Swollman#define CPUSAVE_SRR1 7 /* where SRR1 gets saved */ 7119872Swollman 7219872Swollman/* Book-E TLBSAVE is more elaborate */ 7319872Swollman#define TLBSAVE_BOOKE_LR 0 7419872Swollman#define TLBSAVE_BOOKE_CR 1 7519872Swollman#define TLBSAVE_BOOKE_SRR0 2 7619872Swollman#define TLBSAVE_BOOKE_SRR1 3 7719872Swollman#define TLBSAVE_BOOKE_R20 4 7819872Swollman#define TLBSAVE_BOOKE_R21 5 7919872Swollman#define TLBSAVE_BOOKE_R22 6 8019872Swollman#define TLBSAVE_BOOKE_R23 7 8119872Swollman#define TLBSAVE_BOOKE_R24 8 8219872Swollman#define TLBSAVE_BOOKE_R25 9 8319872Swollman#define TLBSAVE_BOOKE_R26 10 8419872Swollman#define TLBSAVE_BOOKE_R27 11 8519872Swollman#define TLBSAVE_BOOKE_R28 12 8619872Swollman#define TLBSAVE_BOOKE_R29 13 8719872Swollman#define TLBSAVE_BOOKE_R30 14 8819872Swollman#define TLBSAVE_BOOKE_R31 15 8919872Swollman 9019872Swollman#ifndef COMPILING_LINT 9119872Swollman#ifdef AIM 9219872Swollman#define PCPU_MD_FIELDS \ 9319872Swollman PCPU_MD_COMMON_FIELDS \ 9419872Swollman PCPU_MD_AIM_FIELDS 9519872Swollman#endif 9619872Swollman#ifdef E500 9719872Swollman#define PCPU_MD_FIELDS \ 9819872Swollman PCPU_MD_COMMON_FIELDS \ 9919872Swollman PCPU_MD_BOOKE_FIELDS 10019872Swollman#endif 10119872Swollman#else 10219872Swollman#define PCPU_MD_FIELDS \ 10319872Swollman PCPU_MD_COMMON_FIELDS \ 10419872Swollman PCPU_MD_AIM_FIELDS \ 10519872Swollman PCPU_MD_BOOKE_FIELDS 10619872Swollman#endif 10719872Swollman 10819872Swollman#define PCPUP ((struct pcpu *) powerpc_get_pcpup()) 10919872Swollman 11019872Swollman#define PCPU_GET(member) (PCPUP->pc_ ## member) 11119872Swollman 11219872Swollman/* 11319872Swollman * XXX The implementation of this operation should be made atomic 11419872Swollman * with respect to preemption. 11519872Swollman */ 11619872Swollman#define PCPU_ADD(member, value) (PCPUP->pc_ ## member += (value)) 11719872Swollman#define PCPU_INC(member) PCPU_ADD(member, 1) 11819872Swollman#define PCPU_PTR(member) (&PCPUP->pc_ ## member) 11919872Swollman#define PCPU_SET(member,value) (PCPUP->pc_ ## member = (value)) 12019872Swollman 12119872Swollman#endif /* _KERNEL */ 12219872Swollman 12319872Swollman#endif /* !_MACHINE_PCPU_H_ */ 12419872Swollman