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 | |
27 | extern unsigned int specified_table_size; |
28 | struct 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 | |
41 | extern void tce_build(struct iommu_table *tbl, unsigned long index, |
42 | unsigned int npages, unsigned long uaddr, int direction); |
43 | extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages); |
44 | extern void * __init alloc_tce_table(void); |
45 | extern void __init free_tce_table(void *tbl); |
46 | extern int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar); |
47 | |
48 | #endif /* _ASM_X86_TCE_H */ |
49 | |