static void expand(u32int new_size, heap_t *heap)
{
ASSERT(new_size > heap->end_address - heap->start_address);
if (new_size & 0xfffff000)
{
new_size &= 0xfffff000;
new_size += 0x1000;
}
ASSERT(heap->start_address + new_size <= heap->max_address);
u32int old_size = heap->end_address - heap->start_address;
u32int i = old_size;
while (i < new_size)
{
if (!get_page_addr(heap->start_address + i))
put_page((u32int)get_free_page(), heap->start_address + i);
i += 0x1000;
}
heap->end_address = heap->start_address + new_size;
}
u32int kmalloc_int(u32int sz, int align, u32int *phys)
{
if (kheap)
{
void *addr = alloc(sz, (u8int)align, kheap);
if (phys)
{
u32int *page = get_page_addr((u32int)addr);
*phys = (u32int)page;
}
return (u32int)addr;
}
else
{
if (align == 1 && (placement_address & ~0xFFFFF000))
{
placement_address &= 0xFFFFF000;
placement_address += 0x1000;
}
if (phys)
*phys = placement_address;
u32int tmp = placement_address;
placement_address += sz;
return tmp;
}
}
int appfs_mem_getpageinfo(const devfs_handle_t * handle, void * ctl){
DECLARE_APPFS_CONFIG();
u32 size = 0;
mem_pageinfo_t * pageinfo = ctl;
if( pageinfo->o_flags & MEM_FLAG_IS_QUERY ){
u32 type;
pageinfo->num = get_page(config, pageinfo->addr, 0, &type);
pageinfo->size = get_page_size(config, pageinfo->num, MEM_FLAG_IS_RAM);
pageinfo->o_flags = type;
if( type == 0 ){ return SYSFS_SET_RETURN(EINVAL); }
return 0;
}
size = get_page_size(config, pageinfo->num, pageinfo->o_flags);
if (size == 0 ){ return SYSFS_SET_RETURN(EINVAL); }
pageinfo->addr = get_page_addr(config, pageinfo->num, pageinfo->o_flags);
pageinfo->size = size;
return 0;
}
int
bc_remove_block(page_idx_t start_page, int order, int zap_page) {
if (zap_page) {
char* p = get_page_addr(start_page);
size_t len = ((size_t)(1 << order)) << alloc_info->page_size_log2;
madvise(p, len, MADV_DONTDUMP|MADV_DONTNEED);
}
if (!blk_cache_init || !enable_blk_cache)
return 0;
intptr_t idx;
if (!rbt_delete(blk_cache->blks, start_page, &idx))
return 0;
ASSERT(blk_cache->lru_v[idx].order == order);
blk_cache->total_page_num -= (1 << order);
ASSERT(blk_cache->total_page_num >= 0);
lru_remove(idx);
return 1;
}