source: mainline/kernel/arch/sparc64/src/ddi/ddi.c@ 2bc137c2

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 2bc137c2 was ed166f7, checked in by Jakub Jermar <jakub@…>, 19 years ago

A lot of untested sparc64 stuff:

  • Write ASID to hardware when a thread is about to run in userspace.
  • Add userspace() and switch_to_userspace() functions.
  • Handle special cases when the userspace spill/fill handler causes MMU trap.
  • Resolve some TODOs in the existing sparc64 code.
  • sparc64 has now C99 compliant header guards.
  • Formatting and indentation fixes.
  • Property mode set to 100644
File size: 1.9 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 sparc64ddi
30 * @{
31 */
32/** @file
33 */
34
35#include <ddi/ddi.h>
36#include <proc/task.h>
37#include <arch/types.h>
38#include <typedefs.h>
39
40/** Enable I/O space range for task.
41 *
42 * Interrupts are disabled and task is locked.
43 *
44 * @param task Task.
45 * @param ioaddr Startign I/O space address.
46 * @param size Size of the enabled I/O range.
47 *
48 * @return 0 on success or an error code from errno.h.
49 */
50int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
51{
52 return 0;
53}
54
55/** @}
56 */
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