1 /* -*- mode: c; c-basic-offset: 3 -*- */
3 * Copyright 2000 Gareth Hughes
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:
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
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.
27 * Gareth Hughes <gareth@valinux.com>
28 * Leif Delgass <ldelgass@retinalburn.net>
29 * José Fonseca <j_r_fonseca@yahoo.co.uk>
32 #ifndef __MACH64_IOCTL_H__
33 #define __MACH64_IOCTL_H__
35 #include "mach64_dri.h"
36 #include "mach64_reg.h"
37 #include "mach64_lock.h"
39 #define MACH64_BUFFER_MAX_DWORDS (MACH64_BUFFER_SIZE / sizeof(CARD32))
42 extern drmBufPtr
mach64GetBufferLocked( mach64ContextPtr mmesa
);
43 extern void mach64FlushVerticesLocked( mach64ContextPtr mmesa
);
44 extern void mach64FlushDMALocked( mach64ContextPtr mmesa
);
45 extern void mach64UploadHwStateLocked( mach64ContextPtr mmesa
);
47 static INLINE
void *mach64AllocDmaLow( mach64ContextPtr mmesa
, int bytes
)
51 if ( mmesa
->vert_used
+ bytes
> mmesa
->vert_total
) {
52 LOCK_HARDWARE( mmesa
);
53 mach64FlushVerticesLocked( mmesa
);
54 UNLOCK_HARDWARE( mmesa
);
57 head
= (CARD32
*)((char *)mmesa
->vert_buf
+ mmesa
->vert_used
);
58 mmesa
->vert_used
+= bytes
;
63 static INLINE
void *mach64AllocDmaLocked( mach64ContextPtr mmesa
, int bytes
)
67 if ( mmesa
->vert_used
+ bytes
> mmesa
->vert_total
) {
68 mach64FlushVerticesLocked( mmesa
);
71 head
= (CARD32
*)((char *)mmesa
->vert_buf
+ mmesa
->vert_used
);
72 mmesa
->vert_used
+= bytes
;
77 extern void mach64FireBlitLocked( mach64ContextPtr mmesa
, void *buffer
,
78 GLint offset
, GLint pitch
, GLint format
,
79 GLint x
, GLint y
, GLint width
, GLint height
);
81 extern void mach64CopyBuffer( __DRIdrawablePrivate
*dPriv
);
83 extern void mach64PerformanceCounters( mach64ContextPtr mmesa
);
84 extern void mach64PerformanceBoxesLocked( mach64ContextPtr mmesa
);
86 extern void mach64WaitForIdleLocked( mach64ContextPtr mmesa
);
88 extern void mach64InitIoctlFuncs( struct dd_function_table
*functions
);
90 /* ================================================================
94 #define FLUSH_BATCH( mmesa ) \
96 if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
97 fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ ); \
98 if ( mmesa->vert_used ) { \
99 mach64FlushVertices( mmesa ); \
103 /* According to a comment in ATIMach64Sync (atimach64.c) in the DDX:
105 * "For VTB's and later, the first CPU read of the framebuffer will return
106 * zeroes [...] This appears to be due to some kind of engine
107 * caching of framebuffer data I haven't found any way of disabling, or
108 * otherwise circumventing."
110 #define FINISH_DMA_LOCKED( mmesa ) \
113 if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
114 fprintf( stderr, "FINISH_DMA_LOCKED in %s\n", __FUNCTION__ ); \
115 if ( mmesa->vert_used ) { \
116 mach64FlushVerticesLocked( mmesa ); \
118 mach64WaitForIdleLocked( mmesa ); \
119 /* pre-read framebuffer to counter caching problem */ \
120 _tmp = *(volatile CARD32 *)mmesa->driScreen->pFB; \
123 #define FLUSH_DMA_LOCKED( mmesa ) \
125 if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
126 fprintf( stderr, "FLUSH_DMA_LOCKED in %s\n", __FUNCTION__ ); \
127 if ( mmesa->vert_used ) { \
128 mach64FlushVerticesLocked( mmesa ); \
130 mach64FlushDMALocked( mmesa ); \
133 #define mach64FlushVertices( mmesa ) \
135 LOCK_HARDWARE( mmesa ); \
136 mach64FlushVerticesLocked( mmesa ); \
137 UNLOCK_HARDWARE( mmesa ); \
140 #define mach64WaitForIdle( mmesa ) \
142 LOCK_HARDWARE( mmesa ); \
143 mach64WaitForIdleLocked( mmesa ); \
144 UNLOCK_HARDWARE( mmesa ); \
148 #endif /* __MACH64_IOCTL_H__ */