dhcpcd: update README.DRAGONFLY
[dragonfly.git] / sys / platform / pc64 / x86_64 / global.s
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1 /*-
2 * Copyright (c) Peter Wemm <peter@netplex.com.au>
3 * Copyright (c) 2008 The DragonFly Project.
4 * All rights reserved.
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.
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.
27 * $FreeBSD: src/sys/i386/i386/globals.s,v 1.13.2.1 2000/05/16 06:58:06 dillon Exp $
30 #include <machine/asmacros.h>
31 #include <machine/pmap.h>
33 #include "assym.s"
36 * Define the layout of the per-cpu address space. This is
37 * "constructed" in locore.s on the BSP and in mp_machdep.c for
38 * each AP. DO NOT REORDER THESE WITHOUT UPDATING THE REST!
40 * On UP the per-cpu address space is simply placed in the data
41 * segment.
43 .data
45 .globl globaldata
46 .set globaldata,0
49 * Define layout of the global data. On SMP this lives in
50 * the per-cpu address space, otherwise it's in the data segment.
52 .globl gd_trampoline, gd_debug1, gd_debug2
53 .globl gd_curthread, gd_npxthread, gd_reqflags, gd_common_tss
54 .set gd_trampoline,globaldata + GD_TRAMPOLINE
55 .set gd_debug1,globaldata + GD_DEBUG1
56 .set gd_debug2,globaldata + GD_DEBUG2
57 .set gd_curthread,globaldata + GD_CURTHREAD
58 .set gd_npxthread,globaldata + GD_NPXTHREAD
59 .set gd_reqflags,globaldata + GD_REQFLAGS
60 .set gd_common_tss,globaldata + GD_COMMON_TSS
62 .globl gd_common_tssd, gd_tss_gdt
63 .set gd_common_tssd,globaldata + GD_COMMON_TSSD
64 .set gd_tss_gdt,globaldata + GD_TSS_GDT
66 .globl gd_currentldt
67 .set gd_currentldt,globaldata + GD_CURRENTLDT
69 .globl gd_fpu_lock, gd_savefpu
70 .set gd_fpu_lock, globaldata + GD_FPU_LOCK
71 .set gd_savefpu, globaldata + GD_SAVEFPU
73 .globl gd_ireserved
74 .set gd_ireserved, globaldata + GD_IRESERVED
77 * The BSP version of these get setup in locore.s and pmap.c, while
78 * the AP versions are setup in mp_machdep.c.
80 .globl gd_cpuid, gd_cpumask, gd_other_cpus
81 .globl gd_ss_eflags, gd_intr_nesting_level
82 .globl gd_spending, gd_ipending
83 .globl gd_cnt, gd_private_tss
84 .globl gd_user_fs, gd_user_gs
85 .globl gd_sample_pc
86 .globl gd_sample_sp
87 .globl gd_npoll
88 .globl gd_cpumask_simple
89 .globl gd_cpumask_offset
91 .set gd_cpuid,globaldata + GD_CPUID
92 .set gd_cpumask,globaldata + GD_CPUMASK
93 .set gd_private_tss,globaldata + GD_PRIVATE_TSS
94 .set gd_other_cpus,globaldata + GD_OTHER_CPUS
95 .set gd_ss_eflags,globaldata + GD_SS_EFLAGS
96 .set gd_intr_nesting_level,globaldata + GD_INTR_NESTING_LEVEL
97 .set gd_ipending,globaldata + GD_IPENDING
98 .set gd_spending,globaldata + GD_SPENDING
99 .set gd_cnt,globaldata + GD_CNT
100 .set gd_user_fs,globaldata + GD_USER_FS
101 .set gd_user_gs,globaldata + GD_USER_GS
102 .set gd_sample_pc,globaldata + GD_SAMPLE_PC
103 .set gd_sample_sp,globaldata + GD_SAMPLE_SP
104 .set gd_npoll,globaldata + GD_NPOLL
105 .set gd_cpumask_simple,globaldata + GD_CPUMASK_SIMPLE
106 .set gd_cpumask_offset,globaldata + GD_CPUMASK_OFFSET