1/* $Id: iommu.h,v 1.1.1.1 2008/10/15 03:27:26 james26_jang 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[42:13]) */ 16#define IOPTE_CACHE 0x0000000000000010 /* Cached (in UPA E-cache) */ 17#define IOPTE_WRITE 0x0000000000000002 /* Writeable */ 18 19#endif /* !(_SPARC_IOMMU_H) */ 20