sys/boot/ia64/libski/acpi_stub.c

   1 /*
   2  * Copyright (c) 2003 Marcel Moolenaar
   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  *
   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 ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/boot/ia64/libski/acpi_stub.c,v 1.2 2003/09/08 09:11:32 obrien Exp $
  27  * $DragonFly: src/sys/boot/ia64/libski/acpi_stub.c,v 1.2 2007/01/19 07:23:42 dillon Exp $
  28  */
  29
  30 #include <contrib/dev/acpica/acpi.h>
  31
  32 #define APIC_IO_SAPIC                   6
  33 #define APIC_LOCAL_SAPIC                7
  34
  35 #pragma pack(1)
  36
  37 typedef struct  /* LOCAL SAPIC */
  38 {
  39         APIC_HEADER     Header;
  40         UINT8           ProcessorId;            /* ACPI processor id */
  41         UINT8           LocalSapicId;           /* Processor local SAPIC id */
  42         UINT8           LocalSapicEid;          /* Processor local SAPIC eid */
  43         UINT8           Reserved[3];
  44         UINT32          ProcessorEnabled: 1;
  45         UINT32          FlagsReserved: 31;
  46 } LOCAL_SAPIC;
  47
  48 typedef struct  /* IO SAPIC */
  49 {
  50         APIC_HEADER     Header;
  51         UINT8           IoSapicId;              /* I/O SAPIC ID */
  52         UINT8           Reserved;               /* reserved - must be zero */
  53         UINT32          Vector;                 /* interrupt base */
  54         UINT64          IoSapicAddress;         /* SAPIC's physical address */
  55 } IO_SAPIC;
  56
  57 /*
  58  */
  59
  60 struct {
  61         APIC_TABLE              Header;
  62         LOCAL_SAPIC             cpu0;
  63         LOCAL_SAPIC             cpu1;
  64         LOCAL_SAPIC             cpu2;
  65         LOCAL_SAPIC             cpu3;
  66         IO_SAPIC                sapic;
  67 } apic = {
  68         /* Header. */
  69         {
  70                 {
  71                         APIC_SIG,               /* Signature. */
  72                         sizeof(apic),           /* Length of table. */
  73                         0,                      /* ACPI minor revision. */
  74                         0,                      /* XXX checksum. */
  75                         "FBSD",                 /* OEM Id. */
  76                         "SKI",                  /* OEM table Id. */
  77                         0,                      /* OEM revision. */
  78                         "FBSD",                 /* ASL compiler Id. */
  79                         0                       /* ASL revision. */
  80                 },
  81                 0xfee00000,
  82         },
  83         /* cpu0. */
  84         {
  85                 {
  86                         APIC_LOCAL_SAPIC,       /* Type. */
  87                         sizeof(apic.cpu0)       /* Length. */
  88                 },
  89                 0,                              /* ACPI processor id */
  90                 0,                              /* Processor local SAPIC id */
  91                 0,                              /* Processor local SAPIC eid */
  92                 { 0, 0, 0 },
  93                 1,                              /* FL: Enabled. */
  94         },
  95         /* cpu1. */
  96         {
  97                 {
  98                         APIC_LOCAL_SAPIC,       /* Type. */
  99                         sizeof(apic.cpu1)       /* Length. */
 100                 },
 101                 1,                              /* ACPI processor id */
 102                 0,                              /* Processor local SAPIC id */
 103                 1,                              /* Processor local SAPIC eid */
 104                 { 0, 0, 0 },
 105                 1,                              /* FL: Enabled. */
 106         },
 107         /* cpu2. */
 108         {
 109                 {
 110                         APIC_LOCAL_SAPIC,       /* Type. */
 111                         sizeof(apic.cpu2)       /* Length. */
 112                 },
 113                 2,                              /* ACPI processor id */
 114                 1,                              /* Processor local SAPIC id */
 115                 0,                              /* Processor local SAPIC eid */
 116                 { 0, 0, 0 },
 117                 0,                              /* FL: Enabled. */
 118         },
 119         /* cpu3. */
 120         {
 121                 {
 122                         APIC_LOCAL_SAPIC,       /* Type. */
 123                         sizeof(apic.cpu3)       /* Length. */
 124                 },
 125                 3,                              /* ACPI processor id */
 126                 1,                              /* Processor local SAPIC id */
 127                 1,                              /* Processor local SAPIC eid */
 128                 { 0, 0, 0 },
 129                 0,                              /* FL: Enabled. */
 130         },
 131         /* sapic. */
 132         {
 133                 {
 134                         APIC_IO_SAPIC,          /* Type. */
 135                         sizeof(apic.sapic)      /* Length. */
 136                 },
 137                 4,                              /* IO SAPIC id. */
 138                 0,
 139                 16,                             /* Interrupt base. */
 140                 0xfec00000                      /* IO SAPIC address. */
 141         }
 142 };
 143
 144 struct {
 145         ACPI_TABLE_HEADER       Header;
 146         UINT64                  apic_tbl;
 147 } xsdt = {
 148         {
 149                 XSDT_SIG,               /* Signature. */
 150                 sizeof(xsdt),           /* Length of table. */
 151                 0,                      /* ACPI minor revision. */
 152                 0,                      /* XXX checksum. */
 153                 "FBSD",                 /* OEM Id. */
 154                 "SKI",                  /* OEM table Id. */
 155                 0,                      /* OEM revision. */
 156                 "FBSD",                 /* ASL compiler Id. */
 157                 0                       /* ASL revision. */
 158         },
 159         NULL                            /* XXX APIC table address. */
 160 };
 161
 162 ACPI_TABLE_RSDP acpi_root = {
 163         RSDP_SIG,
 164         0,                              /* XXX checksum. */
 165         "FBSD",
 166         2,                              /* ACPI Rev 2.0. */
 167         NULL,
 168         sizeof(xsdt),                   /* XSDT length. */
 169         NULL,                           /* XXX PA of XSDT. */
 170         0,                              /* XXX Extended checksum. */
 171 };
 172
 173 static void
 174 cksum(void *addr, int sz, UINT8 *sum)
 175 {
 176         UINT8 *p, s;
 177
 178         p = addr;
 179         s = 0;
 180         while (sz--)
 181                 s += *p++;
 182         *sum = -s;
 183 }
 184
 185 void
 186 acpi_stub_init(void)
 187 {
 188         acpi_root.XsdtPhysicalAddress = (UINT64)&xsdt;
 189         cksum(&acpi_root, 20, &acpi_root.Checksum);
 190         cksum(&acpi_root, sizeof(acpi_root), &acpi_root.ExtendedChecksum);
 191
 192         xsdt.apic_tbl = (UINT32)&apic;
 193         cksum(&xsdt, sizeof(xsdt), &xsdt.Header.Checksum);
 194 }