source: mainline/abi/include/syscall.h@ fbcdeb8

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since fbcdeb8 was fbcdeb8, checked in by Martin Decky <martin@…>, 14 years ago

Remove the two-phase way of creating virtual memory areas (first asking for a mappable address and then mapping it) which was prone to race conditions when two or more calls to as_get_mappable_page() and as_area_create() were interleaved. This for example caused the e1k driver to randomly fail.

The memory area related syscalls and IPC calls have all been altered to accept a special value (void *) -1, representing a demand to atomically search for a mappable address space "hole" and map to it.

Individual changes:

  • IPC_M_SHARE_OUT: the destination address space area is supplied by the kernel, the callee only specifies the lower bound

(the address is returned to the callee via a pointer in an IPC reply argument)

  • IPC_M_SHARE_IN: the destination address space ares is supplied by the kernel, the callee only specifies the lower bound

(the address is returned to the caller as usual via an IPC argument)

  • SYS_AS_GET_UNMAPPED_AREA was removed
  • dummy implementations of SYS_PHYSMEM_UNMAP and SYS_IOSPACE_DISABLE were added for the sake of symmetry (they do nothing yet)
  • SYS_PHYSMEM_MAP and SYS_DMAMEM_MAP were altered to accept (void *) -1 as address space area base and a lower bound
  • kernel as_area_create() and as_area_share() were altered to accept (void *) -1 as address space area base and a lower bound
  • uspace libraries and programs were altered to reflect the new API
  • Property mode set to 100644
File size: 2.7 KB
RevLine 
[e16e2ba4]1/*
[c0699467]2 * Copyright (c) 2005 Martin Decky
[e16e2ba4]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 generic
30 * @{
31 */
32/** @file
33 */
34
[c0699467]35#ifndef ABI_SYSCALL_H_
36#define ABI_SYSCALL_H_
[e16e2ba4]37
[c0699467]38typedef enum {
39 SYS_KLOG = 0,
40 SYS_TLS_SET = 1, /* Hardcoded for AMD64, IA-32 (fibril.S in uspace) */
41
42 SYS_THREAD_CREATE,
43 SYS_THREAD_EXIT,
44 SYS_THREAD_GET_ID,
45 SYS_THREAD_USLEEP,
46 SYS_THREAD_UDELAY,
47
48 SYS_TASK_GET_ID,
49 SYS_TASK_SET_NAME,
50 SYS_TASK_KILL,
51 SYS_TASK_EXIT,
52 SYS_PROGRAM_SPAWN_LOADER,
53
54 SYS_FUTEX_SLEEP,
55 SYS_FUTEX_WAKEUP,
56 SYS_SMC_COHERENCE,
57
58 SYS_AS_AREA_CREATE,
59 SYS_AS_AREA_RESIZE,
60 SYS_AS_AREA_CHANGE_FLAGS,
61 SYS_AS_AREA_DESTROY,
62
63 SYS_PAGE_FIND_MAPPING,
64
65 SYS_IPC_CALL_SYNC_FAST,
66 SYS_IPC_CALL_SYNC_SLOW,
67 SYS_IPC_CALL_ASYNC_FAST,
68 SYS_IPC_CALL_ASYNC_SLOW,
69 SYS_IPC_ANSWER_FAST,
70 SYS_IPC_ANSWER_SLOW,
71 SYS_IPC_FORWARD_FAST,
72 SYS_IPC_FORWARD_SLOW,
73 SYS_IPC_WAIT,
74 SYS_IPC_POKE,
75 SYS_IPC_HANGUP,
76 SYS_IPC_CONNECT_KBOX,
77
78 SYS_EVENT_SUBSCRIBE,
79 SYS_EVENT_UNMASK,
80
81 SYS_CAP_GRANT,
82 SYS_CAP_REVOKE,
83
84 SYS_DEVICE_ASSIGN_DEVNO,
85 SYS_PHYSMEM_MAP,
[fbcdeb8]86 SYS_PHYSMEM_UNMAP,
[c6ae4c2]87 SYS_DMAMEM_MAP,
88 SYS_DMAMEM_UNMAP,
[c0699467]89 SYS_IOSPACE_ENABLE,
[fbcdeb8]90 SYS_IOSPACE_DISABLE,
[f044e96]91 SYS_IRQ_REGISTER,
92 SYS_IRQ_UNREGISTER,
[c0699467]93
[9a426d1f]94 SYS_SYSINFO_GET_VAL_TYPE,
[c0699467]95 SYS_SYSINFO_GET_VALUE,
96 SYS_SYSINFO_GET_DATA_SIZE,
97 SYS_SYSINFO_GET_DATA,
98
99 SYS_DEBUG_ACTIVATE_CONSOLE,
100
101 SYSCALL_END
102} syscall_t;
[e16e2ba4]103
104#endif
105
106/** @}
107 */
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