/*
* Initialize the page allocator
*/
static void rt_page_init(void *addr, rt_size_t npages)
{
RT_ASSERT(addr != RT_NULL);
RT_ASSERT(npages != 0);
rt_page_list = RT_NULL;
rt_page_free(addr, npages);
}
/*
* This function will release the previously allocated memory page
* by rt_malloc_page.
*
* @param page_ptr the page address to be released.
* @param npages the number of page shall be released.
*
* @note this function is used for RT-Thread Application Module
*/
void rt_free_page(void *page_ptr, rt_size_t npages)
{
rt_page_free(page_ptr, npages);
/* update memory usage */
#ifdef RT_MEM_STATS
rt_sem_take(&heap_sem, RT_WAITING_FOREVER);
used_mem -= npages * RT_MM_PAGE_SIZE;
rt_sem_release(&heap_sem);
#endif
}
