/* COPYRIGHT AND PERMISSION NOTICE

Copyright (c) 2000, 2001 Nokia Home Communications

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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
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to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.

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CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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/* agp.h - header file for KDrive AGP GART interface
 *
 * Author: Pontus Lidman <pontus.lidman@nokia.com>
 *
 */

#ifndef _AGP_H_
#define _AGP_H_

#include <X11/Xdefs.h>
#include <X11/Xmd.h>

/* These two definitions must be consistent with the kernel's,
   but using 1 or 2 in driver code is even uglier */
#define AGP_DCACHE_MEMORY 1
#define AGP_PHYS_MEMORY   2

typedef struct _AgpInfo {
	unsigned long	bridgeId;
	unsigned long	agpMode;
	unsigned long	base;
	unsigned long	size;
	unsigned long	totalPages;
	unsigned long	systemPages;
	unsigned long	usedPages;
} AgpInfo, *AgpInfoPtr;

extern Bool KdAgpGARTSupported(void);
extern AgpInfoPtr KdGetAGPInfo(int screenNum);
extern Bool KdAcquireGART(int screenNum);
extern Bool KdReleaseGART(int screenNum);
extern int KdAllocateGARTMemory(int screenNum, unsigned long size, int type,
				  unsigned long *physical);
extern Bool KdBindGARTMemory(int screenNum, int key, unsigned long offset);
extern Bool KdUnbindGARTMemory(int screenNum, int key);
extern Bool KdEnableAGP(int screenNum, CARD32 mode);

#endif /* _AGP_H_ */