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/*

 * Copyright (C) 2001-2004 Jakub Jermar

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - 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.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 <mm/frame.h>

#include <arch/mm/frame.h>

#include <mm/as.h>

#include <config.h>

#include <arch/boot/boot.h>

#include <arch/boot/memmap.h>

#include <panic.h>

#include <debug.h>

#include <align.h>

#include <macros.h>

#include <print.h>

#include <console/cmd.h>

#include <console/kconsole.h>

size_t hardcoded_unmapped_ktext_size = 0;

size_t hardcoded_unmapped_kdata_size = 0;

__address last_frame = 0;

static void init_e820_memory(pfn_t minconf)

{

    int i;

    pfn_t start, conf;

    size_t size;

    for (i = 0; i < e820counter; i++) {

        if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {

            start = ADDR2PFN(ALIGN_UP(e820table[i].base_address,

                          FRAME_SIZE));

            size = SIZE2FRAMES(ALIGN_DOWN(e820table[i].size,

                           FRAME_SIZE));

            if (minconf < start || minconf >= start+size)

                conf = start;

            else

                conf = minconf;

            zone_create(start, size, conf, 0);

            if (last_frame < ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE))

                last_frame = ALIGN_UP(e820table[i].base_address + e820table[i].size, FRAME_SIZE);

        }          

    }

}

static int cmd_e820mem(cmd_arg_t *argv);

static cmd_info_t e820_info = {

    .name = "e820list",

    .description = "List e820 memory.",

    .func = cmd_e820mem,

    .argc = 0

};

static char *e820names[] = { "invalid", "available", "reserved",

                 "acpi", "nvs", "unusable" };

static int cmd_e820mem(cmd_arg_t *argv)

{

    int i;

    char *name;

    for (i = 0; i < e820counter; i++) {

        if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)

            name = e820names[e820table[i].type];

        else

            name = "invalid";

        printf("%P %QB %s\n",

               (__native) e820table[i].base_address,

               (__u64) e820table[i].size,

               name);

    }          

    return 0;

}

void frame_arch_init(void)

{

    static pfn_t minconf;

    if (config.cpu_active == 1) {

        cmd_initialize(&e820_info);

        cmd_register(&e820_info);

        minconf = 1;

#ifdef CONFIG_SMP

        minconf = max(minconf,

                  ADDR2PFN(AP_BOOT_OFFSET+hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size));

#endif

#ifdef CONFIG_SIMICS_FIX

        minconf = max(minconf, ADDR2PFN(0x10000));

#endif

        init_e820_memory(minconf);

        /* Reserve frame 0 (BIOS data) */

        frame_mark_unavailable(0, 1);

#ifdef CONFIG_SMP

        /* Reserve AP real mode bootstrap memory */

        frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,

                       (hardcoded_unmapped_ktext_size + hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);

#ifdef CONFIG_SIMICS_FIX

        /* Don't know why, but this addresses help */

        frame_mark_unavailable(0xd000 >> FRAME_WIDTH,3);

#endif

#endif

        /* Merge all zones to 1 big zone */

        zone_merge_all();

    }

}