/*

 * This file is derived from asm-powerpc/tce.h.

 *

 * Copyright (C) IBM Corporation, 2006

 *

 * Author: Muli Ben-Yehuda <muli@il.ibm.com>

 * Author: Jon Mason <jdmason@us.ibm.com>

 *

 * 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 */