projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| 8a9d8995 MD |
1 | /*- |
| 2 | * Copyright (c) Peter Wemm <peter@netplex.com.au> | |
| 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 | * $FreeBSD: src/sys/i386/i386/globals.s,v 1.13.2.1 2000/05/16 06:58:06 dillon Exp $ | |
| 6f7b98e0 | 27 | * $DragonFly: src/sys/platform/vkernel/i386/global.s,v 1.2 2007/01/05 22:18:18 dillon Exp $ |
| 8a9d8995 MD |
28 | */ |
| 29 | ||
| 30 | #include <machine/asmacros.h> | |
| 31 | #include <machine/pmap.h> | |
| 32 | ||
| 33 | #include "assym.s" | |
| 34 | ||
| 35 | /* | |
| 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! | |
| 39 | * | |
| 40 | * On UP the per-cpu address space is simply placed in the data | |
| 41 | * segment. | |
| 42 | */ | |
| 43 | .data | |
| 44 | ||
| 45 | .globl globaldata | |
| 46 | .set globaldata,0 | |
| 47 | ||
| 48 | /* | |
| 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. | |
| 51 | */ | |
| 52 | .globl gd_curthread, gd_npxthread, gd_reqflags, gd_common_tss | |
| 53 | .set gd_curthread,globaldata + GD_CURTHREAD | |
| 54 | .set gd_npxthread,globaldata + GD_NPXTHREAD | |
| 55 | .set gd_reqflags,globaldata + GD_REQFLAGS | |
| 56 | .set gd_common_tss,globaldata + GD_COMMON_TSS | |
| 57 | ||
| 5c5185ae SG |
58 | .globl gd_lwbuf_fpages |
| 59 | .set gd_lwbuf_fpages,globaldata + GD_LWBUF_FPAGES | |
| 60 | ||
| 8a9d8995 MD |
61 | .globl gd_common_tssd, gd_tss_gdt |
| 62 | .set gd_common_tssd,globaldata + GD_COMMON_TSSD | |
| 63 | .set gd_tss_gdt,globaldata + GD_TSS_GDT | |
| 64 | ||
| 65 | .globl gd_currentldt | |
| 66 | .set gd_currentldt,globaldata + GD_CURRENTLDT | |
| 67 | ||
| 68 | .globl gd_fpu_lock, gd_savefpu | |
| 69 | .set gd_fpu_lock, globaldata + GD_FPU_LOCK | |
| 70 | .set gd_savefpu, globaldata + GD_SAVEFPU | |
| 71 | ||
| 72 | /* | |
| 73 | * The BSP version of these get setup in locore.s and pmap.c, while | |
| 74 | * the AP versions are setup in mp_machdep.c. | |
| 75 | */ | |
| c2fb025d | 76 | .globl gd_cpuid, gd_cpumask, gd_other_cpus |
| 8a9d8995 MD |
77 | .globl gd_ss_eflags, gd_intr_nesting_level |
| 78 | .globl gd_CMAP1, gd_CMAP2, gd_CMAP3, gd_PMAP1 | |
| 79 | .globl gd_CADDR1, gd_CADDR2, gd_CADDR3, gd_PADDR1 | |
| 80 | .globl gd_spending, gd_ipending, gd_fpending | |
| 6f7b98e0 | 81 | .globl gd_cnt |
| 8a9d8995 MD |
82 | |
| 83 | .set gd_cpuid,globaldata + GD_CPUID | |
| c2fb025d | 84 | .set gd_cpumask,globaldata + GD_CPUMASK |
| 8a9d8995 MD |
85 | .set gd_other_cpus,globaldata + GD_OTHER_CPUS |
| 86 | .set gd_ss_eflags,globaldata + GD_SS_EFLAGS | |
| 87 | .set gd_intr_nesting_level,globaldata + GD_INTR_NESTING_LEVEL | |
| 88 | .set gd_CMAP1,globaldata + GD_PRV_CMAP1 | |
| 89 | .set gd_CMAP2,globaldata + GD_PRV_CMAP2 | |
| 90 | .set gd_CMAP3,globaldata + GD_PRV_CMAP3 | |
| 91 | .set gd_PMAP1,globaldata + GD_PRV_PMAP1 | |
| 92 | .set gd_CADDR1,globaldata + GD_PRV_CADDR1 | |
| 93 | .set gd_CADDR2,globaldata + GD_PRV_CADDR2 | |
| 94 | .set gd_CADDR3,globaldata + GD_PRV_CADDR3 | |
| 95 | .set gd_PADDR1,globaldata + GD_PRV_PADDR1 | |
| 96 | .set gd_fpending,globaldata + GD_FPENDING | |
| 97 | .set gd_ipending,globaldata + GD_IPENDING | |
| 98 | .set gd_spending,globaldata + GD_SPENDING | |
| 99 | .set gd_cnt,globaldata + GD_CNT | |
| 100 |