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  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  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.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - 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.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <arch/types.h>
  30. #include <arch/acpi/acpi.h>
  31. #include <arch/acpi/madt.h>
  32. #include <arch/smp/apic.h>
  33.  
  34. struct acpi_madt *acpi_madt = NULL;
  35.  
  36. #ifdef __SMP__
  37.  
  38. char *entry[] = {
  39.     "L_APIC",
  40.     "IO_APIC",
  41.     "INTR_SRC_OVRD",
  42.     "NMI_SRC",
  43.     "L_APIC_NMI",
  44.     "L_APIC_ADDR_OVRD",
  45.     "IO_SAPIC",
  46.     "L_SAPIC",
  47.     "PLATFORM_INTR_SRC"
  48. };
  49.  
  50. void acpi_madt_parse(void)
  51. {
  52.     struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length);
  53.     struct madt_apic_header *h = &acpi_madt->apic_header[0];
  54.  
  55.     l_apic = (__u32 *) acpi_madt->l_apic_address;
  56.  
  57.     while (h < end) {
  58.         switch (h->type) {
  59.             case MADT_L_APIC:
  60.             case MADT_IO_APIC:
  61.             case MADT_INTR_SRC_OVRD:
  62.             case MADT_NMI_SRC:
  63.             case MADT_L_APIC_NMI:
  64.             case MADT_L_APIC_ADDR_OVRD:
  65.             case MADT_IO_SAPIC:
  66.             case MADT_L_SAPIC:
  67.             case MADT_PLATFORM_INTR_SRC:
  68.                 printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);
  69.                 break;
  70.  
  71.             default:
  72.                 if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {
  73.                     printf("MADT: skipping reserved entry (type=%d)\n", h->type);
  74.                 }
  75.                 if (h->type >= MADT_RESERVED_OEM_BEGIN) {
  76.                     printf("MADT: skipping OEM entry (type=%d)\n", h->type);
  77.                 }
  78.                 break;
  79.         }
  80.         h = (struct madt_apic_header *) (((__u8 *) h) + h->length);
  81.     }
  82.  
  83. }
  84.  
  85. #endif /* __SMP__ */
  86.