1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright (c) 1996, by Peter Wemm
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
* $Id: smpasm.h,v 1.8 1997/04/25 03:11:40 fsmp Exp $
*/
#ifndef __MACHINE_SMPASM_H__
#define __MACHINE_SMPASM_H__ 1
#if defined(SMP) || defined(APIC_IO)
#include <machine/apic.h>
/* Macro to retrieve the current CPU id from hardware */
#define GETCPUID(reg) \
movl _apic_base, reg; \
movl APIC_ID(reg), reg; \
andl $APIC_ID_MASK, reg; \
shrl $24, reg; \
movl _apic_id_to_logical(,reg,4), reg
#define SETCURPROC(val, reg) GETCPUID(reg); movl val, _SMPcurproc(,reg,4)
#define GETCURPROC(reg) GETCPUID(reg); movl _SMPcurproc(,reg,4), reg
#define SETCURPCB(val, reg) GETCPUID(reg); movl val, _SMPcurpcb(,reg,4)
#define GETCURPCB(reg) GETCPUID(reg); movl _SMPcurpcb(,reg,4), reg
#define SETNPXPROC(val, reg) GETCPUID(reg); movl val, _SMPnpxproc(,reg,4)
#define GETNPXPROC(reg) GETCPUID(reg); movl _SMPnpxproc(,reg,4), reg
#else /* !SMP && !APIC_IO */
#define SETCURPROC(val, reg) movl val, _curproc
#define GETCURPROC(reg) movl _curproc, reg
#define SETCURPCB(val, reg) movl val, _curpcb
#define GETCURPCB(reg) movl _curpcb, reg
#define SETNPXPROC(val, reg) movl val, _npxproc
#define GETNPXPROC(reg) movl _npxproc, reg
#endif /* SMP || APIC_IO */
#endif /* __MACHINE_SMPASM_H__ */
|
