include/asm-sparc64/iommu.h

   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) */