Subversion Repositories or1k

/*

 *  acpi_numa.c - ACPI NUMA support

 *

 *  Copyright (C) 2002 Takayoshi Kochi <t-kochi@bq.jp.nec.com>

 *

 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 *

 */

#include <linux/config.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/types.h>

#include <linux/errno.h>

#include <linux/acpi.h>

#define PREFIX                  "ACPI: "

extern int __init acpi_table_parse_madt_family (enum acpi_table_id id, unsigned long madt_size, int entry_id, acpi_madt_entry_handler handler);

void __init

acpi_table_print_srat_entry (

        acpi_table_entry_header *header)

{

        if (!header)

                return;

        switch (header->type) {

        case ACPI_SRAT_PROCESSOR_AFFINITY:

        {

                struct acpi_table_processor_affinity *p =

                        (struct acpi_table_processor_affinity*) header;

                printk(KERN_INFO PREFIX "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",

                       p->apic_id, p->lsapic_eid, p->proximity_domain,

                       p->flags.enabled?"enabled":"disabled");

        }

                break;

        case ACPI_SRAT_MEMORY_AFFINITY:

        {

                struct acpi_table_memory_affinity *p =

                        (struct acpi_table_memory_affinity*) header;

                printk(KERN_INFO PREFIX "SRAT Memory (0x%08x%08x length 0x%08x%08x type 0x%x) in proximity domain %d %s%s\n",

                       p->base_addr_hi, p->base_addr_lo, p->length_hi, p->length_lo,

                       p->memory_type, p->proximity_domain,

                       p->flags.enabled ? "enabled" : "disabled",

                       p->flags.hot_pluggable ? " hot-pluggable" : "");

        }

                break;

        default:

                printk(KERN_WARNING PREFIX "Found unsupported SRAT entry (type = 0x%x)\n",

                        header->type);

                break;

        }

}

static int __init

acpi_parse_slit (unsigned long phys_addr, unsigned long size)

{

        struct acpi_table_slit  *slit;

        u32                     localities;

        if (!phys_addr || !size)

                return -EINVAL;

        slit = (struct acpi_table_slit *) __va(phys_addr);

        /* downcast just for %llu vs %lu for i386/ia64  */

        localities = (u32) slit->localities;

        printk(KERN_INFO PREFIX "SLIT localities %ux%u\n", localities, localities);

        acpi_numa_slit_init(slit);

        return 0;

}

static int __init

acpi_parse_processor_affinity (acpi_table_entry_header *header)

{

        struct acpi_table_processor_affinity *processor_affinity = NULL;

        processor_affinity = (struct acpi_table_processor_affinity*) header;

        if (!processor_affinity)

                return -EINVAL;

        acpi_table_print_srat_entry(header);

        /* let architecture-dependent part to do it */

        acpi_numa_processor_affinity_init(processor_affinity);

        return 0;

}

static int __init

acpi_parse_memory_affinity (acpi_table_entry_header *header)

{

        struct acpi_table_memory_affinity *memory_affinity = NULL;

        memory_affinity = (struct acpi_table_memory_affinity*) header;

        if (!memory_affinity)

                return -EINVAL;

        acpi_table_print_srat_entry(header);

        /* let architecture-dependent part to do it */

        acpi_numa_memory_affinity_init(memory_affinity);

        return 0;

}

static int __init

acpi_parse_srat (unsigned long phys_addr, unsigned long size)

{

        struct acpi_table_srat  *srat = NULL;

        if (!phys_addr || !size)

                return -EINVAL;

        srat = (struct acpi_table_srat *) __va(phys_addr);

        printk(KERN_INFO PREFIX "SRAT revision %d\n", srat->table_revision);

        return 0;

}

int __init

acpi_table_parse_srat (

        enum acpi_srat_entry_id id,

        acpi_madt_entry_handler handler)

{

        return acpi_table_parse_madt_family(ACPI_SRAT, sizeof(struct acpi_table_srat),

                                            id, handler);

}

int __init

acpi_numa_init()

{

        int                     result;

        /* SRAT: Static Resource Affinity Table */

        result = acpi_table_parse(ACPI_SRAT, acpi_parse_srat);

        if (result > 0) {

                result = acpi_table_parse_srat(ACPI_SRAT_PROCESSOR_AFFINITY,

                                               acpi_parse_processor_affinity);

                result = acpi_table_parse_srat(ACPI_SRAT_MEMORY_AFFINITY,

                                               acpi_parse_memory_affinity);

        } else {

                /* FIXME */

                printk("Warning: acpi_table_parse(ACPI_SRAT) returned %d!\n",result);

        }

        /* SLIT: System Locality Information Table */

        result = acpi_table_parse(ACPI_SLIT, acpi_parse_slit);

        if (result < 1) {

                /* FIXME */

                printk("Warning: acpi_table_parse(ACPI_SLIT) returned %d!\n",result);

        }

        acpi_numa_arch_fixup();

        return 0;

}