1 /* $Id: iommu.h,v 1.9 1999/09/21 14:39:39 davem Exp $
2 * iommu.h: Definitions for the sun5 IOMMU.
3 *
4 * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu)
5 */
6 #ifndef _SPARC64_IOMMU_H
7 #define _SPARC64_IOMMU_H
8
9 /* The format of an iopte in the page tables. */
10 #define IOPTE_VALID 0x8000000000000000 /* IOPTE is valid */
11 #define IOPTE_64K 0x2000000000000000 /* IOPTE is for 64k page */
12 #define IOPTE_STBUF 0x1000000000000000 /* DVMA can use streaming buffer */
13 #define IOPTE_INTRA 0x0800000000000000 /* SBUS slot-->slot direct transfer */
14 #define IOPTE_CONTEXT 0x07ff800000000000 /* Context number */
15 #define IOPTE_PAGE 0x00007fffffffe000 /* Physical page number (PA[40:13]) */
16 #define IOPTE_CACHE 0x0000000000000010 /* Cached (in UPA E-cache) */
17 #define IOPTE_WRITE 0x0000000000000002 /* Writeable */
18
19 #endif /* !(_SPARC_IOMMU_H) */
20
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