sys/boot/ia64/ski/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
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <contrib/dev/acpica/include/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         ACPI_SUBTABLE_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         ACPI_SUBTABLE_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         ACPI_TABLE_MADT         MADT;
  62         ACPI_MADT_LOCAL_SAPIC   cpu0;
  63         ACPI_MADT_LOCAL_SAPIC   cpu1;
  64         ACPI_MADT_LOCAL_SAPIC   cpu2;
  65         ACPI_MADT_LOCAL_SAPIC   cpu3;
  66         ACPI_MADT_IO_SAPIC      sapic;
  67 } apic = {
  68         /* Header. */
  69         {
  70                 ACPI_SIG_MADT,                  /* Signature. */
  71                 sizeof(apic),                   /* Length of table. */
  72                 0,                              /* ACPI minor revision. */
  73                 0,                              /* Checksum. */
  74                 "FBSD",                         /* OEM Id. */
  75                 "SKI",                          /* OEM table Id. */
  76                 0,                              /* OEM revision. */
  77                 "FBSD",                         /* ASL compiler Id. */
  78                 0,                              /* ASL revision. */
  79                 0xfee00000,
  80         },
  81         /* cpu0. */
  82         {
  83                 APIC_LOCAL_SAPIC,               /* Type. */
  84                 sizeof(apic.cpu0),              /* Length. */
  85                 0,                              /* ACPI processor id */
  86                 0,                              /* Processor local SAPIC id */
  87                 0,                              /* Processor local SAPIC eid */
  88                 { 0, 0, 0 },
  89                 1,                              /* FL: Enabled. */
  90         },
  91         /* cpu1. */
  92         {
  93                 APIC_LOCAL_SAPIC,               /* Type. */
  94                 sizeof(apic.cpu1),              /* Length. */
  95                 1,                              /* ACPI processor id */
  96                 0,                              /* Processor local SAPIC id */
  97                 1,                              /* Processor local SAPIC eid */
  98                 { 0, 0, 0 },
  99                 1,                              /* FL: Enabled. */
 100         },
 101         /* cpu2. */
 102         {
 103                 APIC_LOCAL_SAPIC,               /* Type. */
 104                 sizeof(apic.cpu2),              /* Length. */
 105                 2,                              /* ACPI processor id */
 106                 1,                              /* Processor local SAPIC id */
 107                 0,                              /* Processor local SAPIC eid */
 108                 { 0, 0, 0 },
 109                 0,                              /* FL: Enabled. */
 110         },
 111         /* cpu3. */
 112         {
 113                 APIC_LOCAL_SAPIC,               /* Type. */
 114                 sizeof(apic.cpu3),              /* Length. */
 115                 3,                              /* ACPI processor id */
 116                 1,                              /* Processor local SAPIC id */
 117                 1,                              /* Processor local SAPIC eid */
 118                 { 0, 0, 0 },
 119                 0,                              /* FL: Enabled. */
 120         },
 121         /* sapic. */
 122         {
 123                 APIC_IO_SAPIC,                  /* Type. */
 124                 sizeof(apic.sapic),             /* Length. */
 125                 4,                              /* IO SAPIC id. */
 126                 0,
 127                 16,                             /* Interrupt base. */
 128                 0xfec00000                      /* IO SAPIC address. */
 129         }
 130 };
 131
 132 struct {
 133         ACPI_TABLE_HEADER       Header;
 134         UINT64                  apic_tbl;
 135 } xsdt = {
 136         {
 137                 ACPI_SIG_XSDT,          /* Signature. */
 138                 sizeof(xsdt),           /* Length of table. */
 139                 0,                      /* ACPI minor revision. */
 140                 0,                      /* XXX checksum. */
 141                 "FBSD",                 /* OEM Id. */
 142                 "SKI",                  /* OEM table Id. */
 143                 0,                      /* OEM revision. */
 144                 "FBSD",                 /* ASL compiler Id. */
 145                 0                       /* ASL revision. */
 146         },
 147         0UL                             /* XXX APIC table address. */
 148 };
 149
 150 ACPI_TABLE_RSDP acpi_root = {
 151         ACPI_SIG_RSDP,
 152         0,                              /* XXX checksum. */
 153         "FBSD",
 154         2,                              /* ACPI Rev 2.0. */
 155         0UL,
 156         sizeof(xsdt),                   /* XSDT length. */
 157         0UL,                            /* XXX PA of XSDT. */
 158         0,                              /* XXX Extended checksum. */
 159 };
 160
 161 static void
 162 cksum(void *addr, int sz, UINT8 *sum)
 163 {
 164         UINT8 *p, s;
 165
 166         p = addr;
 167         s = 0;
 168         while (sz--)
 169                 s += *p++;
 170         *sum = -s;
 171 }
 172
 173 void
 174 acpi_stub_init(void)
 175 {
 176         acpi_root.XsdtPhysicalAddress = (UINT64)&xsdt;
 177         cksum(&acpi_root, 20, &acpi_root.Checksum);
 178         cksum(&acpi_root, sizeof(acpi_root), &acpi_root.ExtendedChecksum);
 179
 180         cksum(&apic, sizeof(apic), &apic.MADT.Header.Checksum);
 181         xsdt.apic_tbl = (UINT32)&apic;
 182         cksum(&xsdt, sizeof(xsdt), &xsdt.Header.Checksum);
 183 }