agp.h   [plain text]


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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_ */