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/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
/*
* Copyright 2000 Gareth Hughes
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Authors:
* Gareth Hughes <gareth@valinux.com>
* Leif Delgass <ldelgass@retinalburn.net>
* José Fonseca <j_r_fonseca@yahoo.co.uk>
*/
#ifndef __MACH64_IOCTL_H__
#define __MACH64_IOCTL_H__
#ifdef GLX_DIRECT_RENDERING
#include "mach64_dri.h"
#include "mach64_reg.h"
#include "mach64_lock.h"
#define MACH64_BUFFER_MAX_DWORDS (MACH64_BUFFER_SIZE / sizeof(CARD32))
extern drmBufPtr mach64GetBufferLocked( mach64ContextPtr mmesa );
extern void mach64FlushVerticesLocked( mach64ContextPtr mmesa );
extern void mach64FlushDMALocked( mach64ContextPtr mmesa );
extern void mach64UploadHwStateLocked( mach64ContextPtr mmesa );
static __inline void *mach64AllocDmaLow( mach64ContextPtr mmesa, int bytes )
{
CARD32 *head;
if ( mmesa->vert_used + bytes > mmesa->vert_total ) {
LOCK_HARDWARE( mmesa );
mach64FlushVerticesLocked( mmesa );
UNLOCK_HARDWARE( mmesa );
}
head = (CARD32 *)((char *)mmesa->vert_buf + mmesa->vert_used);
mmesa->vert_used += bytes;
return head;
}
static __inline void *mach64AllocDmaLocked( mach64ContextPtr mmesa, int bytes )
{
CARD32 *head;
if ( mmesa->vert_used + bytes > mmesa->vert_total ) {
mach64FlushVerticesLocked( mmesa );
}
head = (CARD32 *)((char *)mmesa->vert_buf + mmesa->vert_used);
mmesa->vert_used += bytes;
return head;
}
extern void mach64FireBlitLocked( mach64ContextPtr mmesa, drmBufPtr buffer,
GLint offset, GLint pitch, GLint format,
GLint x, GLint y, GLint width, GLint height );
extern void mach64CopyBuffer( const __DRIdrawablePrivate *dPriv );
#if ENABLE_PERF_BOXES
extern void mach64PerformanceCounters( mach64ContextPtr mmesa );
extern void mach64PerformanceBoxesLocked( mach64ContextPtr mmesa );
#endif
extern void mach64WaitForIdleLocked( mach64ContextPtr mmesa );
extern void mach64InitIoctlFuncs( struct dd_function_table *functions );
/* ================================================================
* Helper macros:
*/
#define FLUSH_BATCH( mmesa ) \
do { \
if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
fprintf( stderr, "FLUSH_BATCH in %s\n", __FUNCTION__ ); \
if ( mmesa->vert_used ) { \
mach64FlushVertices( mmesa ); \
} \
} while (0)
/* According to a comment in ATIMach64Sync (atimach64.c) in the DDX:
*
* "For VTB's and later, the first CPU read of the framebuffer will return
* zeroes [...] This appears to be due to some kind of engine
* caching of framebuffer data I haven't found any way of disabling, or
* otherwise circumventing."
*/
#define FINISH_DMA_LOCKED( mmesa ) \
do { \
CARD32 _tmp; \
if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
fprintf( stderr, "FINISH_DMA_LOCKED in %s\n", __FUNCTION__ ); \
if ( mmesa->vert_used ) { \
mach64FlushVerticesLocked( mmesa ); \
} \
mach64WaitForIdleLocked( mmesa ); \
/* pre-read framebuffer to counter caching problem */ \
_tmp = *(volatile CARD32 *)mmesa->driScreen->pFB; \
} while (0)
#define FLUSH_DMA_LOCKED( mmesa ) \
do { \
if ( MACH64_DEBUG & DEBUG_VERBOSE_IOCTL ) \
fprintf( stderr, "FLUSH_DMA_LOCKED in %s\n", __FUNCTION__ ); \
if ( mmesa->vert_used ) { \
mach64FlushVerticesLocked( mmesa ); \
} \
mach64FlushDMALocked( mmesa ); \
} while (0)
#define mach64FlushVertices( mmesa ) \
do { \
LOCK_HARDWARE( mmesa ); \
mach64FlushVerticesLocked( mmesa ); \
UNLOCK_HARDWARE( mmesa ); \
} while (0)
#define mach64WaitForIdle( mmesa ) \
do { \
LOCK_HARDWARE( mmesa ); \
mach64WaitForIdleLocked( mmesa ); \
UNLOCK_HARDWARE( mmesa ); \
} while (0)
#endif
#endif /* __MACH64_IOCTL_H__ */
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