6759608248
- Rename PCPU_LAZY_INC into PCPU_INC - Add the PCPU_ADD interface which just does an add on the pcpu member given a specific value. Note that for most architectures PCPU_INC and PCPU_ADD are not safe. This is a point that needs some discussions/work in the next days. Reviewed by: alc, bde Approved by: jeff (mentor)
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_PCPU_H_
|
|
#define _MACHINE_PCPU_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <machine/asmacros.h>
|
|
#include <machine/frame.h>
|
|
#include <machine/intr_machdep.h>
|
|
|
|
#define ALT_STACK_SIZE 128
|
|
|
|
struct pmap;
|
|
|
|
/*
|
|
* Inside the kernel, the globally reserved register g7 is used to
|
|
* point at the globaldata structure.
|
|
*/
|
|
#define PCPU_MD_FIELDS \
|
|
struct intr_request pc_irpool[IR_FREE]; \
|
|
struct intr_request *pc_irhead; \
|
|
struct intr_request **pc_irtail; \
|
|
struct intr_request *pc_irfree; \
|
|
struct pmap *pc_pmap; \
|
|
vm_offset_t pc_addr; \
|
|
u_long pc_tickref; \
|
|
u_long pc_tickadj; \
|
|
u_int pc_mid; \
|
|
u_int pc_node; \
|
|
u_int pc_tlb_ctx; \
|
|
u_int pc_tlb_ctx_max; \
|
|
u_int pc_tlb_ctx_min
|
|
|
|
struct pcb;
|
|
struct pcpu;
|
|
|
|
register struct pcb *curpcb __asm__(__XSTRING(PCB_REG));
|
|
register struct pcpu *pcpup __asm__(__XSTRING(PCPU_REG));
|
|
|
|
#define PCPU_GET(member) (pcpup->pc_ ## member)
|
|
|
|
/*
|
|
* XXX The implementation of this operation should be made atomic
|
|
* with respect to preemption.
|
|
*/
|
|
#define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value))
|
|
#define PCPU_INC(member) PCPU_ADD(member, 1)
|
|
#define PCPU_PTR(member) (&pcpup->pc_ ## member)
|
|
#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_PCPU_H_ */
|