MP Implmentation 3/4: MAJOR progress on SMP, full userland MP is now working!
[dragonfly.git] / sys / platform / pc32 / i386 / globals.s
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 $
27  * $DragonFly: src/sys/platform/pc32/i386/globals.s,v 1.16 2003/07/10 04:47:53 dillon Exp $
28  */
29
30 #include "opt_user_ldt.h"
31
32 #include <machine/asmacros.h>
33 #include <machine/pmap.h>
34
35 #include "assym.s"
36
37         /*
38          * Define the layout of the per-cpu address space.  This is
39          * "constructed" in locore.s on the BSP and in mp_machdep.c for
40          * each AP.  DO NOT REORDER THESE WITHOUT UPDATING THE REST!
41          *
42          * On UP the per-cpu addrses space is simply placed in the data
43          * segment.
44          */
45         .data
46         .globl  CPU_prvspace, lapic
47         .set    CPU_prvspace,(MPPTDI << PDRSHIFT)
48         .set    lapic,CPU_prvspace + (NPTEPG-1) * PAGE_SIZE
49
50         .globl  gd_idlestack,gd_idlestack_top
51         .set    gd_idlestack,PS_IDLESTACK
52         .set    gd_idlestack_top,PS_IDLESTACK_TOP
53
54         .globl  globaldata
55         .set    globaldata,0
56
57         /*
58          * Define layout of the global data.  On SMP this lives in
59          * the per-cpu address space, otherwise it's in the data segment.
60          */
61         .globl  gd_curthread, gd_npxthread, gd_astpending, gd_reqpri
62         .globl  gd_common_tss
63         .set    gd_curthread,globaldata + GD_CURTHREAD
64         .set    gd_astpending,globaldata + GD_ASTPENDING
65         .set    gd_reqpri,globaldata + GD_REQPRI
66         .set    gd_npxthread,globaldata + GD_NPXTHREAD
67         .set    gd_common_tss,globaldata + GD_COMMON_TSS
68
69         .globl  gd_common_tssd, gd_tss_gdt
70         .set    gd_common_tssd,globaldata + GD_COMMON_TSSD
71         .set    gd_tss_gdt,globaldata + GD_TSS_GDT
72
73 #ifdef USER_LDT
74         .globl  gd_currentldt
75         .set    gd_currentldt,globaldata + GD_CURRENTLDT
76 #endif
77
78         /*
79          * The BSP version of these get setup in locore.s and pmap.c, while
80          * the AP versions are setup in mp_machdep.c.
81          */
82         .globl  gd_cpuid, gd_cpu_lockid, gd_other_cpus
83         .globl  gd_ss_eflags, gd_intr_nesting_level
84         .globl  gd_CMAP1, gd_CMAP2, gd_CMAP3, gd_PMAP1
85         .globl  gd_CADDR1, gd_CADDR2, gd_CADDR3, gd_PADDR1
86         .globl  gd_ipending, gd_fpending, gd_cnt, gd_private_tss
87
88         .set    gd_cpuid,globaldata + GD_CPUID
89         .set    gd_private_tss,globaldata + GD_PRIVATE_TSS
90         .set    gd_cpu_lockid,globaldata + GD_CPU_LOCKID
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_ipending,globaldata + GD_IPENDING
104         .set    gd_cnt,globaldata + GD_CNT
105
106 #if defined(APIC_IO)
107         .globl  lapic_eoi, lapic_svr, lapic_tpr, lapic_irr1, lapic_ver
108         .globl  lapic_icr_lo,lapic_icr_hi,lapic_isr1
109 /*
110  * Do not clutter our namespace with these unless we need them in other
111  * assembler code.  The C code uses different definitions.
112  */
113 #if 0
114         .globl  lapic_id,lapic_ver,lapic_tpr,lapic_apr,lapic_ppr,lapic_eoi
115         .globl  lapic_ldr,lapic_dfr,lapic_svr,lapic_isr,lapic_isr0
116         .globl  lapic_isr2,lapic_isr3,lapic_isr4,lapic_isr5,lapic_isr6
117         .globl  lapic_isr7,lapic_tmr,lapic_tmr0,lapic_tmr1,lapic_tmr2
118         .globl  lapic_tmr3,lapic_tmr4,lapic_tmr5,lapic_tmr6,lapic_tmr7
119         .globl  lapic_irr,lapic_irr0,lapic_irr1,lapic_irr2,lapic_irr3
120         .globl  lapic_irr4,lapic_irr5,lapic_irr6,lapic_irr7,lapic_esr
121         .globl  lapic_lvtt,lapic_pcint,lapic_lvt1
122         .globl  lapic_lvt2,lapic_lvt3,lapic_ticr,lapic_tccr,lapic_tdcr
123 #endif
124         .set    lapic_id,       lapic + 0x020
125         .set    lapic_ver,      lapic + 0x030
126         .set    lapic_tpr,      lapic + 0x080
127         .set    lapic_apr,      lapic + 0x090
128         .set    lapic_ppr,      lapic + 0x0a0
129         .set    lapic_eoi,      lapic + 0x0b0
130         .set    lapic_ldr,      lapic + 0x0d0
131         .set    lapic_dfr,      lapic + 0x0e0
132         .set    lapic_svr,      lapic + 0x0f0
133         .set    lapic_isr,      lapic + 0x100
134         .set    lapic_isr0,     lapic + 0x100
135         .set    lapic_isr1,     lapic + 0x110
136         .set    lapic_isr2,     lapic + 0x120
137         .set    lapic_isr3,     lapic + 0x130
138         .set    lapic_isr4,     lapic + 0x140
139         .set    lapic_isr5,     lapic + 0x150
140         .set    lapic_isr6,     lapic + 0x160
141         .set    lapic_isr7,     lapic + 0x170
142         .set    lapic_tmr,      lapic + 0x180
143         .set    lapic_tmr0,     lapic + 0x180
144         .set    lapic_tmr1,     lapic + 0x190
145         .set    lapic_tmr2,     lapic + 0x1a0
146         .set    lapic_tmr3,     lapic + 0x1b0
147         .set    lapic_tmr4,     lapic + 0x1c0
148         .set    lapic_tmr5,     lapic + 0x1d0
149         .set    lapic_tmr6,     lapic + 0x1e0
150         .set    lapic_tmr7,     lapic + 0x1f0
151         .set    lapic_irr,      lapic + 0x200
152         .set    lapic_irr0,     lapic + 0x200
153         .set    lapic_irr1,     lapic + 0x210
154         .set    lapic_irr2,     lapic + 0x220
155         .set    lapic_irr3,     lapic + 0x230
156         .set    lapic_irr4,     lapic + 0x240
157         .set    lapic_irr5,     lapic + 0x250
158         .set    lapic_irr6,     lapic + 0x260
159         .set    lapic_irr7,     lapic + 0x270
160         .set    lapic_esr,      lapic + 0x280
161         .set    lapic_icr_lo,   lapic + 0x300
162         .set    lapic_icr_hi,   lapic + 0x310
163         .set    lapic_lvtt,     lapic + 0x320
164         .set    lapic_pcint,    lapic + 0x340
165         .set    lapic_lvt1,     lapic + 0x350
166         .set    lapic_lvt2,     lapic + 0x360
167         .set    lapic_lvt3,     lapic + 0x370
168         .set    lapic_ticr,     lapic + 0x380
169         .set    lapic_tccr,     lapic + 0x390
170         .set    lapic_tdcr,     lapic + 0x3e0
171 #endif
172