| Jon Mason | e465058 | 2006-06-26 13:58:14 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 Muli Ben-Yehuda <muli@il.ibm.com>, IBM Corporation |
| 3 | * Copyright (C) 2006 Jon Mason <jdmason@us.ibm.com>, IBM Corporation |
| 4 | * |
| 5 | * This file is derived from asm-powerpc/tce.h. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef _ASM_X86_64_TCE_H |
| 23 | #define _ASM_X86_64_TCE_H |
| 24 | |
| 25 | extern void* tce_table_kva[]; |
| 26 | extern unsigned int specified_table_size; |
| 27 | struct iommu_table; |
| 28 | |
| 29 | #define TCE_ENTRY_SIZE 8 /* in bytes */ |
| 30 | |
| 31 | #define TCE_READ_SHIFT 0 |
| 32 | #define TCE_WRITE_SHIFT 1 |
| 33 | #define TCE_HUBID_SHIFT 2 /* unused */ |
| 34 | #define TCE_RSVD_SHIFT 8 /* unused */ |
| 35 | #define TCE_RPN_SHIFT 12 |
| 36 | #define TCE_UNUSED_SHIFT 48 /* unused */ |
| 37 | |
| 38 | #define TCE_RPN_MASK 0x0000fffffffff000ULL |
| 39 | |
| 40 | extern void tce_build(struct iommu_table *tbl, unsigned long index, |
| 41 | unsigned int npages, unsigned long uaddr, int direction); |
| 42 | extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages); |
| 43 | extern void* alloc_tce_table(void); |
| 44 | extern void free_tce_table(void *tbl); |
| 45 | extern int build_tce_table(struct pci_dev *dev, void __iomem *bbar); |
| 46 | |
| 47 | #endif /* _ASM_X86_64_TCE_H */ |