1/* 2 * Copyright 2017, Data61 3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO) 4 * ABN 41 687 119 230. 5 * 6 * This software may be distributed and modified according to the terms of 7 * the BSD 2-Clause license. Note that NO WARRANTY is provided. 8 * See "LICENSE_BSD2.txt" for details. 9 * 10 * @TAG(DATA61_BSD) 11 */ 12 13#pragma once 14 15#include <autoconf.h> 16#include <sel4utils/gen_config.h> 17 18#include <sel4/sel4.h> 19#include <vka/vka.h> 20#include <vspace/vspace.h> 21#include <platsupport/io.h> 22 23/** 24 * Creates an implementation of a dma manager that is designed to allocate at page granularity. Due 25 * to implementation details it will round up all allocations to the next power of 2, or 4k (whichever 26 * is larger). This allocator will put mappings into the vspace with custom cookie values and you 27 * must free all dma allocations before tearing down the vspace 28 * @param vka Allocation interface for allocating untypeds (for frames) and slots 29 * @param vspace Virtual memory manager used for mapping frames 30 * @param dma_man Pointer to dma manager struct that will be filled out 31 * @return 0 on success 32 */ 33int sel4utils_new_page_dma_alloc(vka_t *vka, vspace_t *vspace, ps_dma_man_t *dma_man); 34 35