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- /* $Id: iommu.h,v 1.10 2001/03/08 09:55:56 davem Exp $
- * iommu.h: Definitions for the sun5 IOMMU.
- *
- * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu)
- */
- #ifndef _SPARC64_IOMMU_H
- #define _SPARC64_IOMMU_H
- /* The format of an iopte in the page tables. */
- #define IOPTE_VALID 0x8000000000000000UL /* IOPTE is valid */
- #define IOPTE_64K 0x2000000000000000UL /* IOPTE is for 64k page */
- #define IOPTE_STBUF 0x1000000000000000UL /* DVMA can use streaming buffer */
- #define IOPTE_INTRA 0x0800000000000000UL /* SBUS slot-->slot direct transfer*/
- #define IOPTE_CONTEXT 0x07ff800000000000UL /* Context number */
- #define IOPTE_PAGE 0x00007fffffffe000UL /* Physical page number (PA[42:13])*/
- #define IOPTE_CACHE 0x0000000000000010UL /* Cached (in UPA E-cache) */
- #define IOPTE_WRITE 0x0000000000000002UL /* Writeable */
- #define IOMMU_NUM_CTXS 4096
- #endif /* !(_SPARC_IOMMU_H) */
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