source: mainline/abi/include/ddi/arg.h@ 6c34f587

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 6c34f587 was c6ae4c2, checked in by Martin Decky <martin@…>, 14 years ago

implement basic DMA memory mapping routines
no persistent locking (pinning) of the DMA memory is currently implemented (this can be dangerous)
no unmapping is implemented
special allocations (< 16 MB, < 4 GB) are not supported yet

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2006 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup genericddi
30 * @{
31 */
32/** @file
33 */
34
35#ifndef ABI_DDI_ARG_H_
36#define ABI_DDI_ARG_H_
37
38#define DMAMEM_FLAGS_ANONYMOUS 0x01
39
40/** Structure encapsulating arguments for SYS_PHYSMEM_MAP syscall. */
41typedef struct {
42 /** ID of the destination task. */
43 uint64_t task_id;
44 /** Physical address of starting frame. */
45 void *phys_base;
46 /** Virtual address of starting page. */
47 void *virt_base;
48 /** Number of pages to map. */
49 size_t pages;
50 /** Address space area flags for the mapping. */
51 unsigned int flags;
52} ddi_memarg_t;
53
54/** Structure encapsulating arguments for SYS_ENABLE_IOSPACE syscall. */
55typedef struct {
56 uint64_t task_id; /**< ID of the destination task. */
57 void *ioaddr; /**< Starting I/O space address. */
58 size_t size; /**< Number of bytes. */
59} ddi_ioarg_t;
60
61#endif
62
63/** @}
64 */
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