Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i386/i386/globals.s
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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 * $FreeBSD$ 27 */ 28 29 #include "opt_user_ldt.h" 30 31 #include <machine/asmacros.h> 32 #include <machine/pmap.h> 33 34 #include "assym.s" 35 36 #ifdef SMP 37 /* 38 * Define layout of per-cpu address space. 39 * This is "constructed" in locore.s on the BSP and in mp_machdep.c 40 * for each AP. DO NOT REORDER THESE WITHOUT UPDATING THE REST! 41 */ 42 .globl _SMP_prvspace, _lapic 43 .set _SMP_prvspace,(MPPTDI << PDRSHIFT) 44 .set _lapic,_SMP_prvspace + (NPTEPG-1) * PAGE_SIZE 45 46 .globl gd_idlestack,gd_idlestack_top 47 .set gd_idlestack,PS_IDLESTACK 48 .set gd_idlestack_top,PS_IDLESTACK_TOP 49 #endif 50 51 /* 52 * Define layout of the global data. On SMP this lives in 53 * the per-cpu address space, otherwise it's in the data segment. 54 */ 55 .globl globaldata 56 #ifndef SMP 57 .data 58 ALIGN_DATA 59 globaldata: 60 .space GD_SIZEOF /* in data segment */ 61 #else 62 .set globaldata,0 63 #endif 64 .globl gd_curproc, gd_curpcb, gd_npxproc, gd_astpending 65 .globl gd_common_tss, gd_switchtime, gd_switchticks 66 .set gd_curproc,globaldata + GD_CURPROC 67 .set gd_astpending,globaldata + GD_ASTPENDING 68 .set gd_curpcb,globaldata + GD_CURPCB 69 .set gd_npxproc,globaldata + GD_NPXPROC 70 .set gd_common_tss,globaldata + GD_COMMON_TSS 71 .set gd_switchtime,globaldata + GD_SWITCHTIME 72 .set gd_switchticks,globaldata + GD_SWITCHTICKS 73 74 .globl gd_common_tssd, gd_tss_gdt 75 .set gd_common_tssd,globaldata + GD_COMMON_TSSD 76 .set gd_tss_gdt,globaldata + GD_TSS_GDT 77 78 #ifdef USER_LDT 79 .globl gd_currentldt 80 .set gd_currentldt,globaldata + GD_CURRENTLDT 81 #endif 82 83 #ifndef SMP 84 .globl _curproc, _curpcb, _npxproc, _astpending 85 .globl _common_tss, _switchtime, _switchticks 86 .set _curproc,globaldata + GD_CURPROC 87 .set _astpending,globaldata + GD_ASTPENDING 88 .set _curpcb,globaldata + GD_CURPCB 89 .set _npxproc,globaldata + GD_NPXPROC 90 .set _common_tss,globaldata + GD_COMMON_TSS 91 .set _switchtime,globaldata + GD_SWITCHTIME 92 .set _switchticks,globaldata + GD_SWITCHTICKS 93 94 .globl _common_tssd, _tss_gdt 95 .set _common_tssd,globaldata + GD_COMMON_TSSD 96 .set _tss_gdt,globaldata + GD_TSS_GDT 97 98 #ifdef USER_LDT 99 .globl _currentldt 100 .set _currentldt,globaldata + GD_CURRENTLDT 101 #endif 102 #endif 103 104 #ifdef SMP 105 /* 106 * The BSP version of these get setup in locore.s and pmap.c, while 107 * the AP versions are setup in mp_machdep.c. 108 */ 109 .globl gd_cpuid, gd_cpu_lockid, gd_other_cpus 110 .globl gd_ss_eflags, gd_inside_intr 111 .globl gd_prv_CMAP1, gd_prv_CMAP2, gd_prv_CMAP3, gd_prv_PMAP1 112 .globl gd_prv_PMAP2 113 .globl gd_prv_CADDR1, gd_prv_CADDR2, gd_prv_CADDR3, gd_prv_PADDR1 114 .globl gd_prv_PADDR2 115 116 .set gd_cpuid,globaldata + GD_CPUID 117 .set gd_cpu_lockid,globaldata + GD_CPU_LOCKID 118 .set gd_other_cpus,globaldata + GD_OTHER_CPUS 119 .set gd_ss_eflags,globaldata + GD_SS_EFLAGS 120 .set gd_inside_intr,globaldata + GD_INSIDE_INTR 121 .set gd_prv_CMAP1,globaldata + GD_PRV_CMAP1 122 .set gd_prv_CMAP2,globaldata + GD_PRV_CMAP2 123 .set gd_prv_CMAP3,globaldata + GD_PRV_CMAP3 124 .set gd_prv_PMAP1,globaldata + GD_PRV_PMAP1 125 .set gd_prv_PMAP2,globaldata + GD_PRV_PMAP2 126 .set gd_prv_CADDR1,globaldata + GD_PRV_CADDR1 127 .set gd_prv_CADDR2,globaldata + GD_PRV_CADDR2 128 .set gd_prv_CADDR3,globaldata + GD_PRV_CADDR3 129 .set gd_prv_PADDR1,globaldata + GD_PRV_PADDR1 130 .set gd_prv_PADDR2,globaldata + GD_PRV_PADDR2 131 #endif 132 133 #if defined(SMP) || defined(APIC_IO) 134 .globl lapic_eoi, lapic_svr, lapic_tpr, lapic_irr1, lapic_ver 135 .globl lapic_icr_lo,lapic_icr_hi,lapic_isr1 136 /* 137 * Do not clutter our namespace with these unless we need them in other 138 * assembler code. The C code uses different definitions. 139 */ 140 #if 0 141 .globl lapic_id,lapic_ver,lapic_tpr,lapic_apr,lapic_ppr,lapic_eoi 142 .globl lapic_ldr,lapic_dfr,lapic_svr,lapic_isr,lapic_isr0 143 .globl lapic_isr2,lapic_isr3,lapic_isr4,lapic_isr5,lapic_isr6 144 .globl lapic_isr7,lapic_tmr,lapic_tmr0,lapic_tmr1,lapic_tmr2 145 .globl lapic_tmr3,lapic_tmr4,lapic_tmr5,lapic_tmr6,lapic_tmr7 146 .globl lapic_irr,lapic_irr0,lapic_irr1,lapic_irr2,lapic_irr3 147 .globl lapic_irr4,lapic_irr5,lapic_irr6,lapic_irr7,lapic_esr 148 .globl lapic_lvtt,lapic_pcint,lapic_lvt1 149 .globl lapic_lvt2,lapic_lvt3,lapic_ticr,lapic_tccr,lapic_tdcr 150 #endif 151 .set lapic_id, _lapic + 0x020 152 .set lapic_ver, _lapic + 0x030 153 .set lapic_tpr, _lapic + 0x080 154 .set lapic_apr, _lapic + 0x090 155 .set lapic_ppr, _lapic + 0x0a0 156 .set lapic_eoi, _lapic + 0x0b0 157 .set lapic_ldr, _lapic + 0x0d0 158 .set lapic_dfr, _lapic + 0x0e0 159 .set lapic_svr, _lapic + 0x0f0 160 .set lapic_isr, _lapic + 0x100 161 .set lapic_isr0, _lapic + 0x100 162 .set lapic_isr1, _lapic + 0x110 163 .set lapic_isr2, _lapic + 0x120 164 .set lapic_isr3, _lapic + 0x130 165 .set lapic_isr4, _lapic + 0x140 166 .set lapic_isr5, _lapic + 0x150 167 .set lapic_isr6, _lapic + 0x160 168 .set lapic_isr7, _lapic + 0x170 169 .set lapic_tmr, _lapic + 0x180 170 .set lapic_tmr0, _lapic + 0x180 171 .set lapic_tmr1, _lapic + 0x190 172 .set lapic_tmr2, _lapic + 0x1a0 173 .set lapic_tmr3, _lapic + 0x1b0 174 .set lapic_tmr4, _lapic + 0x1c0 175 .set lapic_tmr5, _lapic + 0x1d0 176 .set lapic_tmr6, _lapic + 0x1e0 177 .set lapic_tmr7, _lapic + 0x1f0 178 .set lapic_irr, _lapic + 0x200 179 .set lapic_irr0, _lapic + 0x200 180 .set lapic_irr1, _lapic + 0x210 181 .set lapic_irr2, _lapic + 0x220 182 .set lapic_irr3, _lapic + 0x230 183 .set lapic_irr4, _lapic + 0x240 184 .set lapic_irr5, _lapic + 0x250 185 .set lapic_irr6, _lapic + 0x260 186 .set lapic_irr7, _lapic + 0x270 187 .set lapic_esr, _lapic + 0x280 188 .set lapic_icr_lo, _lapic + 0x300 189 .set lapic_icr_hi, _lapic + 0x310 190 .set lapic_lvtt, _lapic + 0x320 191 .set lapic_pcint, _lapic + 0x340 192 .set lapic_lvt1, _lapic + 0x350 193 .set lapic_lvt2, _lapic + 0x360 194 .set lapic_lvt3, _lapic + 0x370 195 .set lapic_ticr, _lapic + 0x380 196 .set lapic_tccr, _lapic + 0x390 197 .set lapic_tdcr, _lapic + 0x3e0 198 #endif
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