source: mainline/kernel/arch/ia64/src/mm/frame.c@ 2f08ff55

/*
 * Copyright (c) 2005 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.
 */

/** @addtogroup ia64mm  
 * @{
 */
/** @file
 */

#include <arch/mm/frame.h>
#include <mm/frame.h>
#include <config.h>
#include <panic.h>
#include <arch/bootinfo.h>
#include <align.h>
#include <macros.h>

#define KERNEL_RESERVED_AREA_BASE (0x4400000)
#define KERNEL_RESERVED_AREA_SIZE (16*1024*1024)

#define ONE_TO_ONE_MAPPING_SIZE (256*1048576) // Mapped at start

#define ROM_BASE        0xa0000               //For ski
#define ROM_SIZE        (384 * 1024)          //For ski
void poke_char(int x,int y,char ch, char c);

#define MIN_ZONE_SIZE (64*1024)

uintptr_t last_frame;
#define MINCONF 1

void frame_arch_init(void)
{

        if(config.cpu_active==1){
                
                
                
                unsigned int i;
                for(i=0;i<bootinfo->memmap_items;i++){
                        if (bootinfo->memmap[i].type==EFI_MEMMAP_FREE_MEM){
                                uint64_t base=bootinfo->memmap[i].base;
                                uint64_t size=bootinfo->memmap[i].size;
                                uint64_t abase=ALIGN_UP(base,FRAME_SIZE);
                                if(size>FRAME_SIZE) size -=abase-base;
                                

                                if(size>MIN_ZONE_SIZE)  {
                                        zone_create(abase >> FRAME_WIDTH, (size) >> FRAME_WIDTH, max(MINCONF,((abase) >> FRAME_WIDTH)), 0);
                                }       
                        }
                }
                
                /*
                * Blacklist ROM regions.
                */
                frame_mark_unavailable(ADDR2PFN(ROM_BASE), SIZE2FRAMES(ROM_SIZE));

                frame_mark_unavailable(ADDR2PFN(KERNEL_RESERVED_AREA_BASE), SIZE2FRAMES(KERNEL_RESERVED_AREA_SIZE));
        }       
}

/** @}
 */