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/*
* bubbl
* Copyright (C) 2025 Raghuram Subramani <raghus2247@gmail.com>
*
* 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libk/kmalloc.h>
#include <libk/stdio.h>
#include <mm/virtual_mm.h>
#include <stddef.h>
#include <stdint.h>
/* TODO: Kmalloc must have space for a page table *at all times*. */
memory_chunk_t *starting_mc = NULL;
bool initialized = false;
memory_chunk_t *
add_block(void *address, uint32_t size)
{
memory_chunk_t *mc = (memory_chunk_t *) address;
mc->next = NULL;
mc->prev = NULL;
uint32_t chunk_size = size - sizeof(memory_chunk_t);
printk("kmalloc", "size(0x%x) chunk_size(0x%x)");
mc->size = chunk_size;
printk("kmalloc",
"mc(0x%x) mc->size(0x%x) chunk_size(0x%x)",
mc,
mc->size,
chunk_size);
return mc;
}
void
kmalloc_initialize(void)
{
int *initial_region = (int *) VirtualMM::alloc_pages(1);
printk("debug", "Initial region: 0x%x", initial_region);
*initial_region = 10;
/* memory_chunk_t *mc = (memory_chunk_t *) initial_region; */
/* mc->size = 10; */
/* printk("kmalloc", "mc->size(0x%x)", mc->size); */
/* starting_mc = add_block(initial_region, 4 * PAGE_SIZE); */
initialized = true;
}
bool
kmalloc_initialized(void)
{
return initialized;
}
void *
kmalloc(uint32_t size)
{
if (!initialized)
kmalloc_initialize();
/* printk("kmalloc", */
/* "Initialized region with starting_mc(0x%x) and size(0x%x)", */
/* starting_mc, */
/* starting_mc->size); */
(void) size;
return NULL;
}
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