Tizen 2.0 Release
[profile/ivi/osmesa.git] / src / mesa / drivers / dri / mach64 / mach64_ioctl.h
1 /* -*- mode: c; c-basic-offset: 3 -*- */
2 /*
3  * Copyright 2000 Gareth Hughes
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the next
14  * paragraph) shall be included in all copies or substantial portions of the
15  * Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20  * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24
25 /*
26  * Authors:
27  *      Gareth Hughes <gareth@valinux.com>
28  *      Leif Delgass <ldelgass@retinalburn.net>
29  *      José Fonseca <j_r_fonseca@yahoo.co.uk>
30  */
31
32 #ifndef __MACH64_IOCTL_H__
33 #define __MACH64_IOCTL_H__
34
35 #include <stdio.h>
36 #include <stdlib.h>
37
38 #include "mach64_dri.h"
39 #include "mach64_reg.h"
40 #include "mach64_lock.h"
41
42 #define MACH64_BUFFER_MAX_DWORDS        (MACH64_BUFFER_SIZE / sizeof(CARD32))
43
44
45 extern drmBufPtr mach64GetBufferLocked( mach64ContextPtr mmesa );
46 extern void mach64FlushVerticesLocked( mach64ContextPtr mmesa );
47 extern void mach64FlushDMALocked( mach64ContextPtr mmesa );
48 extern void mach64UploadHwStateLocked( mach64ContextPtr mmesa );
49
50 static INLINE void *mach64AllocDmaLow( mach64ContextPtr mmesa, int bytes )
51 {
52    CARD32 *head;
53
54    if ( mmesa->vert_used + bytes > mmesa->vert_total ) {
55       LOCK_HARDWARE( mmesa );
56       mach64FlushVerticesLocked( mmesa );
57       UNLOCK_HARDWARE( mmesa );
58    }
59
60    head = (CARD32 *)((char *)mmesa->vert_buf + mmesa->vert_used);
61    mmesa->vert_used += bytes;
62
63    return head;
64 }
65
66 static INLINE void *mach64AllocDmaLocked( mach64ContextPtr mmesa, int bytes )
67 {
68    CARD32 *head;
69
70    if ( mmesa->vert_used + bytes > mmesa->vert_total ) {
71       mach64FlushVerticesLocked( mmesa );
72    }
73
74    head = (CARD32 *)((char *)mmesa->vert_buf + mmesa->vert_used);
75    mmesa->vert_used += bytes;
76
77    return head;
78 }
79
80 extern void mach64FireBlitLocked( mach64ContextPtr mmesa, void *buffer,
81                                   GLint offset, GLint pitch, GLint format,
82                                   GLint x, GLint y, GLint width, GLint height );
83
84 extern void mach64CopyBuffer( __DRIdrawable *dPriv );
85 #if ENABLE_PERF_BOXES
86 extern void mach64PerformanceCounters( mach64ContextPtr mmesa );
87 extern void mach64PerformanceBoxesLocked( mach64ContextPtr mmesa );
88 #endif
89 extern void mach64WaitForIdleLocked( mach64ContextPtr mmesa );
90
91 extern void mach64InitIoctlFuncs( struct dd_function_table *functions );
92
93 /* ================================================================
94  * Helper macros:
95  */
96
97 #define FLUSH_BATCH( mmesa )                                            \
98 do {                                                                    \
99    if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL )                            \
100       fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ );           \
101    if ( mmesa->vert_used ) {                                            \
102       mach64FlushVertices( mmesa );                                     \
103    }                                                                    \
104 } while (0)
105
106 /* According to a comment in ATIMach64Sync (atimach64.c) in the DDX:
107  *
108  * "For VTB's and later, the first CPU read of the framebuffer will return
109  * zeroes [...] This appears to be due to some kind of engine
110  * caching of framebuffer data I haven't found any way of disabling, or
111  * otherwise circumventing."
112  */
113 #define FINISH_DMA_LOCKED( mmesa )                                      \
114 do {                                                                    \
115    CARD32 _tmp;                                                         \
116    if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL )                            \
117       fprintf( stderr, "FINISH_DMA_LOCKED in %s\n", __FUNCTION__ );     \
118    if ( mmesa->vert_used ) {                                            \
119       mach64FlushVerticesLocked( mmesa );                               \
120    }                                                                    \
121    mach64WaitForIdleLocked( mmesa );                                    \
122    /* pre-read framebuffer to counter caching problem */                \
123    _tmp = *(volatile CARD32 *)mmesa->driScreen->pFB;                    \
124 } while (0)
125
126 #define FLUSH_DMA_LOCKED( mmesa )                                       \
127 do {                                                                    \
128    if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL )                            \
129       fprintf( stderr, "FLUSH_DMA_LOCKED in %s\n", __FUNCTION__ );      \
130    if ( mmesa->vert_used ) {                                            \
131       mach64FlushVerticesLocked( mmesa );                               \
132    }                                                                    \
133    mach64FlushDMALocked( mmesa );                                       \
134 } while (0)
135
136 #define mach64FlushVertices( mmesa )                                    \
137 do {                                                                    \
138    LOCK_HARDWARE( mmesa );                                              \
139    mach64FlushVerticesLocked( mmesa );                                  \
140    UNLOCK_HARDWARE( mmesa );                                            \
141 } while (0)
142
143 #define mach64WaitForIdle( mmesa )              \
144 do {                                            \
145    LOCK_HARDWARE( mmesa );                      \
146    mach64WaitForIdleLocked( mmesa );            \
147    UNLOCK_HARDWARE( mmesa );                    \
148 } while (0)
149
150
151 #endif /* __MACH64_IOCTL_H__ */