#include <print.h>

#define SCTLR 15,0,1,0,0
#define TTBR0 15,0,2,0,0
#define TTBR1 15,0,2,0,1
#define TTBCR 15,0,2,0,2

#define _cp_read(var, cp, opc1, CRn, CRm, opc2) asm("mrc p" #cp ", " #opc1 ", %0, c" #CRn ", c" #CRm ", " #opc2 ";" : "=r"(var) : )
#define _cp_write(var, cp, opc1, CRn, CRm, opc2) asm("mcr p" #cp ", " #opc1 ", %0, c" #CRn ", c" #CRm ", " #opc2 ";" : : "r"(var) )
#define cp_read(var, ...)  _cp_read(var, __VA_ARGS__)
#define cp_write(var, ...)  _cp_write(var, __VA_ARGS__)

void mmu_reinit() {
	unsigned int *curr_tt_entry; 
	unsigned int curr_addr;

	//get the current translation table base address
	cp_read(curr_tt_entry, TTBR0);

	//do first loop iteration outside the loop, because we have to check against wrapping back around to know we're done
	*curr_tt_entry = 0xc02;
	curr_tt_entry++;

	//create identity mapping for entire address space using sections
	for (curr_addr = 0x00100000; curr_addr != 0; curr_addr += 0x00100000) {
		*curr_tt_entry = curr_addr | 0xc02;
		curr_tt_entry++;
	}
}