FreeBSD/Linux Kernel Cross Reference
sys/dev/acpi/acpi_madt.c

     /*      $NetBSD: acpi_madt.c,v 1.12 2004/03/24 13:02:23 kochi Exp $     */
     
     /*
      * Copyright (c) 2003 Wasabi Systems, Inc.
      * All rights reserved.
      *
      * Written by Frank van der Linden for Wasabi Systems, Inc.
      *
      * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed for the NetBSD Project by
     *      Wasabi Systems, Inc.
     * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     *    or promote products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: acpi_madt.c,v 1.12 2004/03/24 13:02:23 kochi Exp $");
    
    #include <sys/param.h>
    #include <sys/ioctl.h>
    #include <sys/systm.h>
    #include <sys/conf.h>
    #include <sys/errno.h>
    #include <sys/malloc.h>
    
    #include <dev/acpi/acpica.h>
    #include <dev/acpi/acpireg.h>
    #include <dev/acpi/acpivar.h>
    #include <dev/acpi/acpi_madt.h>
    
    #ifdef ACPI_MADT_DEBUG
    static void acpi_madt_print(void);
    static ACPI_STATUS acpi_madt_print_entry(APIC_HEADER *, void *);
    static void acpi_print_apic_proc(MADT_PROCESSOR_APIC *);
    static void acpi_print_ioapic(MADT_IO_APIC *);
    static void acpi_print_intsrc_ovr(MADT_INTERRUPT_OVERRIDE *);
    static void acpi_print_intsrc_nmi(MADT_NMI_SOURCE *);
    static void acpi_print_lapic_nmi(MADT_LOCAL_APIC_NMI *);
    static void acpi_print_lapic_addr_ovr(MADT_ADDRESS_OVERRIDE *);
    static void acpi_print_iosapic(MADT_IO_SAPIC *);
    static void acpi_print_local_sapic(MADT_LOCAL_SAPIC *);
    static void acpi_print_platint(MADT_INTERRUPT_SOURCE *);
    #endif
    
    static ACPI_TABLE_HEADER *madt_header;
    
    ACPI_STATUS
    acpi_madt_map(void)
    {
            ACPI_STATUS  rv;
    
            if (madt_header != NULL)
                    return AE_ALREADY_EXISTS;
    
            rv = AcpiGetFirmwareTable(APIC_SIG, 1, ACPI_LOGICAL_ADDRESSING,
                &madt_header);
    
            if (ACPI_FAILURE(rv))
                    return rv;
    
    #ifdef ACPI_MADT_DEBUG
            acpi_madt_print();
    #endif
    
            return AE_OK;
    }
    
    void
    acpi_madt_unmap(void)
    {
            AcpiOsUnmapMemory(madt_header, madt_header->Length);
            madt_header = NULL;
    }
    
    #ifdef ACPI_MADT_DEBUG
    
    static void
   acpi_print_apic_proc(MADT_PROCESSOR_APIC *p)
   {
           printf("processor: id %u apid %u enabled: %s\n",
               p->ProcessorId, p->LocalApicId,
               p->ProcessorEnabled ? "yes" : "no");
   }
   
   static void
   acpi_print_ioapic(MADT_IO_APIC *p)
   {
           printf("ioapic: apid %u address %x vector base %x\n",
               p->IoApicId, p->Address, p->Interrupt);
   }
   
   static void
   acpi_print_intsrc_ovr(MADT_INTERRUPT_OVERRIDE *p)
   {
           printf("int override: bus %u irq %u int %u\n",
               p->Bus, p->Source, p->Interrupt);
   }
   
   static void
   acpi_print_intsrc_nmi(MADT_NMI_SOURCE *p)
   {
           printf("ioapic NMI: int %u\n", p->Interrupt);
   }
   
   static void
   acpi_print_lapic_nmi(MADT_LOCAL_APIC_NMI *p)
   {
           printf("lapic NMI: apid %u input %u\n", p->ProcessorId, p->Lint);
   }
   
   static void
   acpi_print_lapic_addr_ovr(MADT_ADDRESS_OVERRIDE *p)
   {
           printf("lapic addr override: %llx\n", (unsigned long long)p->Address);
   }
   
   static void
   acpi_print_iosapic(MADT_IO_SAPIC *p)
   {
           printf("iosapic: sapid %u address %llx vector base %x\n",
               p->IoSapicId, p->Address, p->InterruptBase);
   }
   
   static void
   acpi_print_local_sapic(MADT_LOCAL_SAPIC *p)
   {
           printf("local sapic: CPU %u sapid %u sapeid %u enabled: %s\n",
               p->ProcessorId, p->LocalSapicId, p->LocalSapicEid,
               p->ProcessorEnabled ? "yes" : "no");
   }
   
   static void
   acpi_print_platint(MADT_INTERRUPT_SOURCE *p)
   {
           printf("platform int: type %u apid %u apeid %u\n",
               p->InterruptType, p->ProcessorId, p->ProcessorEid);
   }
   
   #endif
   
   void
   acpi_madt_walk(ACPI_STATUS (*func)(APIC_HEADER *, void *), void *aux)
   {
           char *madtend, *where;
           APIC_HEADER *hdrp;
   
           madtend = (char *)madt_header + madt_header->Length;
           where = (char *)madt_header + sizeof (MULTIPLE_APIC_TABLE);
           while (where < madtend) {
                   hdrp = (APIC_HEADER *)where;
                   if (func(hdrp, aux) != AE_OK)
                           break;
                   where += hdrp->Length;
           }
   }
   
   #ifdef ACPI_MADT_DEBUG
   void
   acpi_madt_print(void)
   {
           MULTIPLE_APIC_TABLE *ap;
   
           ap = (MULTIPLE_APIC_TABLE *)madt_header;
           printf("\n\nACPI MADT table:\n");
           printf("default local APIC address: %x\n", ap->LocalApicAddress);
           printf("system dual 8259%s present\n",
               ap->PCATCompat ? "" : " not");
           printf("entries:\n");
   
           acpi_madt_walk(acpi_madt_print_entry, NULL);
   }
   
   static ACPI_STATUS
   acpi_madt_print_entry(APIC_HEADER *hdrp, void *aux)
   {
           switch (hdrp->Type) {
           case APIC_PROCESSOR:
                   acpi_print_apic_proc((void *)hdrp);
                   break;
           case APIC_IO:
                   acpi_print_ioapic((void *)hdrp);
                   break;
           case APIC_XRUPT_OVERRIDE:
                   acpi_print_intsrc_ovr((void *)hdrp);
                   break;
           case APIC_NMI:
                   acpi_print_intsrc_nmi((void *)hdrp);
                   break;
           case APIC_LOCAL_NMI:
                   acpi_print_lapic_nmi((void *)hdrp);
                   break;
           case APIC_ADDRESS_OVERRIDE:
                   acpi_print_lapic_addr_ovr((void *)hdrp);
                   break;
           case APIC_IO_SAPIC:
                   acpi_print_iosapic((void *)hdrp);
                   break;
           case APIC_LOCAL_SAPIC:
                   acpi_print_local_sapic((void *)hdrp);
                   break;
           case APIC_XRUPT_SOURCE:
                   acpi_print_platint((void *)hdrp);
                   break;
           default:
                   printf("Unknown MADT entry type %d\n", hdrp->Type);
                   break;
           }
           return AE_OK;
   }
   #endif

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