pcpu.h revision 97265
1/*- 2 * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27 27 * $FreeBSD: head/sys/sparc64/include/pcpu.h 97265 2002-05-25 02:39:28Z jake $ 28 */ 29 30#ifndef _MACHINE_PCPU_H_ 31#define _MACHINE_PCPU_H_ 32 33#ifdef _KERNEL 34 35#include <machine/asmacros.h> 36#include <machine/frame.h> 37#include <machine/intr_machdep.h> 38 39#define ALT_STACK_SIZE 128 40 41struct vmspace; 42 43/* 44 * Inside the kernel, the globally reserved register g7 is used to 45 * point at the globaldata structure. 46 */ 47#define PCPU_MD_FIELDS \ 48 struct intr_request pc_irpool[IR_FREE]; \ 49 struct intr_request *pc_irhead; \ 50 struct intr_request **pc_irtail; \ 51 struct intr_request *pc_irfree; \ 52 struct vmspace *pc_vmspace; \ 53 vm_offset_t pc_addr; \ 54 u_int pc_mid; \ 55 u_int pc_tlb_ctx; \ 56 u_int pc_tlb_ctx_max; \ 57 u_int pc_tlb_ctx_min; \ 58 u_int pc_wp_insn; /* watch point support */ \ 59 u_long pc_wp_pstate; \ 60 u_long pc_wp_va; \ 61 int pc_wp_mask 62 63struct pcb; 64struct pcpu; 65 66register struct pcb *curpcb __asm__(__XSTRING(PCB_REG)); 67register struct pcpu *pcpup __asm__(__XSTRING(PCPU_REG)); 68 69#define PCPU_GET(member) (pcpup->pc_ ## member) 70#define PCPU_PTR(member) (&pcpup->pc_ ## member) 71#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value)) 72 73#endif /* _KERNEL */ 74 75#endif /* !_MACHINE_PCPU_H_ */ 76