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File:  [Research Unix] / researchv9 / sys / sun3 / udvma.h
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:21:59 2018 UTC (8 years, 3 months ago) by root
Branches: belllabs, MAIN
CVS tags: researchv9-SUN3_old, researchv9-SUN3, HEAD
researchv9-SUN3(old)

/*      @(#)udvma.h 1.1 86/02/03 SMI      */

/*
 * Copyright (c) 1985 by Sun Microsystems, Inc.
 */

/*
 * On implementations that allow user DVMA, the User DVMA enable
 * register controls which contexts have DVMA access. The user DVMA
 * enable register is addressed as a byte in FC_MAP space.
 */

/*
 * Bits for the User DVMA enable register
 */
#define	UDVMA_CX7	0x80		/* User DVMA for context 7 */
#define	UDVMA_CX6	0x40		/* User DVMA for context 6 */
#define	UDVMA_CX5	0x20		/* User DVMA for context 5 */
#define	UDVMA_CX4	0x10		/* User DVMA for context 4 */
#define	UDVMA_CX3	0x08		/* User DVMA for context 3 */
#define	UDVMA_CX2	0x04		/* User DVMA for context 2 */
#define	UDVMA_CX1	0x02		/* User DVMA for context 1 */
#define	UDVMA_CX0	0x01		/* User DVMA for context 0 */

#define	UDVMA_NORMAL	0x00		/* Normal - all user DVMA disabled */

#define	UDVMA_REG	0x50000000	/* addr of udvma reg in FC_MAP space */
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