Function rt_varea_unmap_range

components/mm/mm_aspace.c:1407–1432

* @note Caller should take care of synchronization of its varea among all the map/unmap operation */

 * @note Caller should take care of synchronization of its varea among all the map/unmap operation
 */
int rt_varea_unmap_range(rt_varea_t varea, void *vaddr, rt_size_t length)
{
    int err;
    rt_base_t va_align;

    if (!varea || !vaddr || !length)
    {
        LOG_W("%s(%p,%p,%lx): invalid input", __func__, varea, vaddr, length);
        err = -RT_EINVAL;
    }
    else if (_not_in_range(MMF_MAP_FIXED, vaddr, length,
                           varea->start, varea->size))
    {
        LOG_W("%s(%p,%lx): not in range of varea(%p,%lx)", __func__,
            vaddr, length, varea->start, varea->size);
        err = -RT_EINVAL;
    }
    else
    {
        va_align = RT_ALIGN_DOWN((rt_base_t)vaddr, ARCH_PAGE_SIZE);
        rt_hw_mmu_unmap(varea->aspace, (void *)va_align, length);
        rt_hw_tlb_invalidate_range(varea->aspace, (void *)va_align, length, ARCH_PAGE_SIZE);
        err = RT_EOK;
    }
    return err;
}

int rt_aspace_offload_page(rt_aspace_t aspace, void *addr, rt_size_t npage)
{