1/*
2 * Copyright © 2010 NVIDIA Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#ifdef HAVE_DIX_CONFIG_H
25#include <dix-config.h>
26#endif
27
28#ifndef _MISYNCSTR_H_
29#define _MISYNCSTR_H_
30
31#include "dix.h"
32#include <X11/extensions/syncconst.h>
33
34#define CARD64 XSyncValue /* XXX temporary! need real 64 bit values for Alpha */
35
36/* Sync object types */
37#define SYNC_COUNTER		0
38#define SYNC_FENCE		1
39
40typedef struct _SyncObject {
41    ClientPtr		client;	/* Owning client. 0 for system counters */
42    struct _SyncTriggerList *pTriglist;	/* list of triggers */
43    XID			id;		/* resource ID */
44    unsigned char	type;		/* SYNC_* */
45    Bool		beingDestroyed;	/* in process of going away */
46} SyncObject;
47
48typedef struct _SyncCounter {
49    SyncObject		sync;		/* Common sync object data */
50    CARD64		value;		/* counter value */
51    struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */
52} SyncCounter;
53
54struct _SyncFence {
55    SyncObject		sync;		/* Common sync object data */
56    ScreenPtr		pScreen;	/* Screen of this fence object */
57    SyncFenceFuncsRec	funcs;		/* Funcs for performing ops on fence */
58    Bool		triggered;	/* fence state */
59    PrivateRec		*devPrivates;	/* driver-specific per-fence data */
60};
61
62struct _SyncTrigger {
63    SyncObject *pSync;
64    CARD64	wait_value;	/* wait value */
65    unsigned int value_type;	/* Absolute or Relative */
66    unsigned int test_type;	/* transition or Comparision type */
67    CARD64	test_value;	/* trigger event threshold value */
68    Bool	(*CheckTrigger)(
69				struct _SyncTrigger * /*pTrigger*/,
70				CARD64 /*newval*/
71				);
72    void	(*TriggerFired)(
73				struct _SyncTrigger * /*pTrigger*/
74				);
75    void	(*CounterDestroyed)(
76				struct _SyncTrigger * /*pTrigger*/
77				    );
78};
79
80typedef struct _SyncTriggerList {
81    SyncTrigger *pTrigger;
82    struct _SyncTriggerList *next;
83} SyncTriggerList;
84
85#endif /* _MISYNCSTR_H_ */
86
87