sys/platform/pc64/x86_64/global.s

   1 /*-
   2  * Copyright (c) Peter Wemm <peter@netplex.com.au>
   3  * Copyright (c) 2008 The DragonFly Project.
   4  * All rights reserved.
   5  *
   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.
  14  *
  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.
  26  *
  27  * $FreeBSD: src/sys/i386/i386/globals.s,v 1.13.2.1 2000/05/16 06:58:06 dillon Exp $
  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 #if JG
  45         .globl  CPU_prvspace, lapic
  46         .set    CPU_prvspace,(MPPTDI << PDRSHIFT)
  47         /* JG TODO check for correctness */
  48         .set    lapic,CPU_prvspace + (NPTEPG-1) * PAGE_SIZE
  49 #endif
  50
  51         .globl  globaldata
  52         .set    globaldata,0
  53
  54         /*
  55          * Define layout of the global data.  On SMP this lives in
  56          * the per-cpu address space, otherwise it's in the data segment.
  57          */
  58         .globl  gd_curthread, gd_npxthread, gd_reqflags, gd_common_tss
  59         .set    gd_curthread,globaldata + GD_CURTHREAD
  60         .set    gd_npxthread,globaldata + GD_NPXTHREAD
  61         .set    gd_reqflags,globaldata + GD_REQFLAGS
  62         .set    gd_common_tss,globaldata + GD_COMMON_TSS
  63
  64         .globl  gd_common_tssd, gd_tss_gdt
  65         .set    gd_common_tssd,globaldata + GD_COMMON_TSSD
  66         .set    gd_tss_gdt,globaldata + GD_TSS_GDT
  67
  68         .globl  gd_currentldt
  69         .set    gd_currentldt,globaldata + GD_CURRENTLDT
  70
  71         .globl  gd_fpu_lock, gd_savefpu
  72         .set    gd_fpu_lock, globaldata + GD_FPU_LOCK
  73         .set    gd_savefpu, globaldata + GD_SAVEFPU
  74
  75         /*
  76          * The BSP version of these get setup in locore.s and pmap.c, while
  77          * the AP versions are setup in mp_machdep.c.
  78          */
  79         .globl  gd_cpuid, gd_cpumask, gd_other_cpus
  80         .globl  gd_ss_eflags, gd_intr_nesting_level
  81         .globl  gd_CMAP1, gd_CMAP2, gd_CMAP3, gd_PMAP1
  82         .globl  gd_CADDR1, gd_CADDR2, gd_CADDR3, gd_PADDR1
  83         .globl  gd_spending, gd_fpending
  84         .globl  gd_cnt, gd_private_tss
  85         .globl  gd_scratch_rsp, gd_rsp0
  86         .globl  gd_user_fs, gd_user_gs
  87
  88         .set    gd_cpuid,globaldata + GD_CPUID
  89         .set    gd_cpumask,globaldata + GD_CPUMASK
  90         .set    gd_private_tss,globaldata + GD_PRIVATE_TSS
  91         .set    gd_other_cpus,globaldata + GD_OTHER_CPUS
  92         .set    gd_ss_eflags,globaldata + GD_SS_EFLAGS
  93         .set    gd_intr_nesting_level,globaldata + GD_INTR_NESTING_LEVEL
  94         .set    gd_CMAP1,globaldata + GD_PRV_CMAP1
  95         .set    gd_CMAP2,globaldata + GD_PRV_CMAP2
  96         .set    gd_CMAP3,globaldata + GD_PRV_CMAP3
  97         .set    gd_PMAP1,globaldata + GD_PRV_PMAP1
  98         .set    gd_CADDR1,globaldata + GD_PRV_CADDR1
  99         .set    gd_CADDR2,globaldata + GD_PRV_CADDR2
 100         .set    gd_CADDR3,globaldata + GD_PRV_CADDR3
 101         .set    gd_PADDR1,globaldata + GD_PRV_PADDR1
 102         .set    gd_fpending,globaldata + GD_FPENDING
 103         .set    gd_spending,globaldata + GD_SPENDING
 104         .set    gd_cnt,globaldata + GD_CNT
 105         .set    gd_scratch_rsp,globaldata + GD_SCRATCH_RSP
 106         .set    gd_rsp0,globaldata + GD_RSP0
 107         .set    gd_user_fs,globaldata + GD_USER_FS
 108         .set    gd_user_gs,globaldata + GD_USER_GS
 109