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