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/*
* Copyright (C) 2006 Muli Ben-Yehuda <muli@il.ibm.com>, IBM Corporation
* Copyright (C) 2006 Jon Mason <jdmason@us.ibm.com>, IBM Corporation
*
* This file is derived from asm-powerpc/tce.h.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _ASM_X86_64_TCE_H
#define _ASM_X86_64_TCE_H
extern void* tce_table_kva[];
extern unsigned int specified_table_size;
struct iommu_table;
#define TCE_ENTRY_SIZE 8 /* in bytes */
#define TCE_READ_SHIFT 0
#define TCE_WRITE_SHIFT 1
#define TCE_HUBID_SHIFT 2 /* unused */
#define TCE_RSVD_SHIFT 8 /* unused */
#define TCE_RPN_SHIFT 12
#define TCE_UNUSED_SHIFT 48 /* unused */
#define TCE_RPN_MASK 0x0000fffffffff000ULL
extern void tce_build(struct iommu_table *tbl, unsigned long index,
unsigned int npages, unsigned long uaddr, int direction);
extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages);
extern void* alloc_tce_table(void);
extern void free_tce_table(void *tbl);
extern int build_tce_table(struct pci_dev *dev, void __iomem *bbar);
#endif /* _ASM_X86_64_TCE_H */
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