tce.h 1.7 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849
  1. /*
  2. * This file is derived from asm-powerpc/tce.h.
  3. *
  4. * Copyright (C) IBM Corporation, 2006
  5. *
  6. * Author: Muli Ben-Yehuda <muli@il.ibm.com>
  7. * Author: Jon Mason <jdmason@us.ibm.com>
  8. *
  9. * This program is free software; you can redistribute it and/or modify
  10. * it under the terms of the GNU General Public License as published by
  11. * the Free Software Foundation; either version 2 of the License, or
  12. * (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22. */
  23. #ifndef _ASM_X86_TCE_H
  24. #define _ASM_X86_TCE_H
  25. extern unsigned int specified_table_size;
  26. struct iommu_table;
  27. #define TCE_ENTRY_SIZE 8 /* in bytes */
  28. #define TCE_READ_SHIFT 0
  29. #define TCE_WRITE_SHIFT 1
  30. #define TCE_HUBID_SHIFT 2 /* unused */
  31. #define TCE_RSVD_SHIFT 8 /* unused */
  32. #define TCE_RPN_SHIFT 12
  33. #define TCE_UNUSED_SHIFT 48 /* unused */
  34. #define TCE_RPN_MASK 0x0000fffffffff000ULL
  35. extern void tce_build(struct iommu_table *tbl, unsigned long index,
  36. unsigned int npages, unsigned long uaddr, int direction);
  37. extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages);
  38. extern void * __init alloc_tce_table(void);
  39. extern void __init free_tce_table(void *tbl);
  40. extern int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar);
  41. #endif /* _ASM_X86_TCE_H */