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 24#ifndef _ASM_X86_TCE_H 25#define _ASM_X86_TCE_H 26 27extern unsigned int specified_table_size; 28struct iommu_table; 29 30#define TCE_ENTRY_SIZE 8 /* in bytes */ 31 32#define TCE_READ_SHIFT 0 33#define TCE_WRITE_SHIFT 1 34#define TCE_HUBID_SHIFT 2 /* unused */ 35#define TCE_RSVD_SHIFT 8 /* unused */ 36#define TCE_RPN_SHIFT 12 37#define TCE_UNUSED_SHIFT 48 /* unused */ 38 39#define TCE_RPN_MASK 0x0000fffffffff000ULL 40 41extern void tce_build(struct iommu_table *tbl, unsigned long index, 42 unsigned int npages, unsigned long uaddr, int direction); 43extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages); 44extern void * __init alloc_tce_table(void); 45extern void __init free_tce_table(void *tbl); 46extern int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar); 47 48#endif /* _ASM_X86_TCE_H */ 49