source: bootcd/isolinux/syslinux-6.03/com32/gpllib/dmi/dmi_cache.c

/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2009 Pierre-Alexandre Meyer - All Rights Reserved
 *
 *   Some part borrowed from DMI Decode:
 *
 *   (C) 2000-2002 Alan Cox <alan@redhat.com>
 *   (C) 2002-2007 Jean Delvare <khali@linux-fr.org>
 *
 *   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, Inc., 53 Temple Place Ste 330,
 *   Boston MA 02111-1307, USA; either version 2 of the License, or
 *   (at your option) any later version; incorporated herein by reference.
 *
 * ----------------------------------------------------------------------- */

#include <dmi/dmi.h>
#include <dmi/dmi_cache.h>
#include <stdio.h>

/*
 * 3.3.8 Cache Information (Type 7)
 */

const char *dmi_cache_mode(uint8_t code)
{
    static const char *mode[] = {
        "Write Through",        /* 0x00 */
        "Write Back",
        "Varies With Memory Address",
        "Unknown"               /* 0x03 */
    };

    return mode[code];
}

const char *dmi_cache_location(uint8_t code)
{
    static const char *location[4] = {
        "Internal",             /* 0x00 */
        "External",
        "<OUT OF SPEC",         /* 0x02 */
        "Unknown"               /* 0x03 */
    };

    if (location[code] != NULL)
        return location[code];
    return out_of_spec;
}

uint16_t dmi_cache_size(uint16_t code)
{
    if (code & 0x8000)
        return (code & 0x7FFF) << 6;    /* KB */
    else
        return code;            /* KB */
}

void dmi_cache_types(uint16_t code, const char *sep, char *array)
{
    /* 3.3.8.2 */
    static const char *types[] = {
        "Other",                /* 0 */
        "Unknown",
        "Non-burst",
        "Burst",
        "Pipeline Burst",
        "Synchronous",
        "Asynchronous"          /* 6 */
    };

    if ((code & 0x007F) == 0)
        strcpy(array, "None");
    else {
        int i;

        for (i = 0; i <= 6; i++)
            if (code & (1 << i))
                sprintf(array, "%s%s", sep, types[i]);
    }
}

const char *dmi_cache_ec_type(uint8_t code)
{
    /* 3.3.8.3 */
    static const char *type[] = {
        "Other",                /* 0x01 */
        "Unknown",
        "None",
        "Parity",
        "Single-bit ECC",
        "Multi-bit ECC"         /* 0x06 */
    };

    if (code >= 0x01 && code <= 0x06)
        return type[code - 0x01];
    return out_of_spec;
}

const char *dmi_cache_type(uint8_t code)
{
    /* 3.3.8.4 */
    static const char *type[] = {
        "Other",                /* 0x01 */
        "Unknown",
        "Instruction",
        "Data",
        "Unified"               /* 0x05 */
    };

    if (code >= 0x01 && code <= 0x05)
        return type[code - 0x01];
    return out_of_spec;
}

const char *dmi_cache_associativity(uint8_t code)
{
    /* 3.3.8.5 */
    static const char *type[] = {
        "Other",                /* 0x01 */
        "Unknown",
        "Direct Mapped",
        "2-way Set-associative",
        "4-way Set-associative",
        "Fully Associative",
        "8-way Set-associative",
        "16-way Set-associative",       /* 0x08 */
        "12-way Set-associative",
        "24-way Set-associative",
        "32-way Set-associative",
        "48-way Set-associative",
        "64-way Set-associative"        /* 0x0D */
    };

    if (code >= 0x01 && code <= 0x0D)
        return type[code - 0x01];
    return out_of_spec;
}