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Linux kernel mirror (for testing)
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1/* $Id: iommu.h,v 1.10 2001/03/08 09:55:56 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 0x8000000000000000UL /* IOPTE is valid */
11#define IOPTE_64K 0x2000000000000000UL /* IOPTE is for 64k page */
12#define IOPTE_STBUF 0x1000000000000000UL /* DVMA can use streaming buffer */
13#define IOPTE_INTRA 0x0800000000000000UL /* SBUS slot-->slot direct transfer*/
14#define IOPTE_CONTEXT 0x07ff800000000000UL /* Context number */
15#define IOPTE_PAGE 0x00007fffffffe000UL /* Physical page number (PA[42:13])*/
16#define IOPTE_CACHE 0x0000000000000010UL /* Cached (in UPA E-cache) */
17#define IOPTE_WRITE 0x0000000000000002UL /* Writeable */
18
19#define IOMMU_NUM_CTXS 4096
20
21#endif /* !(_SPARC_IOMMU_H) */