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