/*
 * Multiboot C Entry
 */

#include <stdbool.h>
#include <stdint.h>

#include <sys/kassert.h>
#include <sys/cdefs.h>

#include "../dev/console.h"

#include <machine/mrt.h>
#include <machine/pmap.h>
#include <machine/paging.h>

void MachineBoot_Entry(unsigned long magic, unsigned long addr);

#define PAGE_ALIGN __attribute__((aligned(PGSIZE)))
#define DATA_SECTION __attribute__((section(".data")))

extern void Machine_EarlyInit();
extern void Machine_Init();
extern void PAlloc_AddRegion(uintptr_t start, uintptr_t len);

#define MAX_REGIONS 16
static uintptr_t memRegionStart[MAX_REGIONS];
static uintptr_t memRegionLen[MAX_REGIONS];
static int memRegionIdx;

void
MachineBoot_Entry(unsigned long magic, unsigned long addr)
{
	// initialize metal mode
	mtl_init();
	paging_init();

    // Main initialization
    Machine_Init();

    return;
}

void
MachineBoot_AddMem()
{
    int i;
    uintptr_t initRamEnd = 32*1024*1024;

    for (i = 0; i < memRegionIdx; i++)
    {
	uintptr_t start = memRegionStart[i];
	uintptr_t len = memRegionLen[i];

	if (start + len < initRamEnd)
	    continue;

	if (start < initRamEnd) {
	    len = initRamEnd - start;
	    start = initRamEnd;
	}

	kprintf("AddRegion: %08llx %08llx\n", start, len);
	PAlloc_AddRegion(start + MEM_DIRECTMAP_BASE, len);
    }
}