Commit | Line | Data |
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c707ffcf OJ |
1 | /* |
2 | * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation | |
3 | * Rewrite, cleanup: | |
91f14480 | 4 | * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation |
c707ffcf OJ |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
8882a4da DG |
21 | #ifndef _ASM_POWERPC_TCE_H |
22 | #define _ASM_POWERPC_TCE_H | |
88ced031 | 23 | #ifdef __KERNEL__ |
c707ffcf | 24 | |
5d2efba6 LV |
25 | #include <asm/iommu.h> |
26 | ||
c707ffcf OJ |
27 | /* |
28 | * Tces come in two formats, one for the virtual bus and a different | |
29 | * format for PCI | |
30 | */ | |
31 | #define TCE_VB 0 | |
32 | #define TCE_PCI 1 | |
33 | ||
d0035c62 OJ |
34 | /* TCE page size is 4096 bytes (1 << 12) */ |
35 | ||
36 | #define TCE_SHIFT 12 | |
37 | #define TCE_PAGE_SIZE (1 << TCE_SHIFT) | |
d0035c62 | 38 | |
bc97ce95 OJ |
39 | #define TCE_ENTRY_SIZE 8 /* each TCE is 64 bits */ |
40 | ||
41 | #define TCE_RPN_MASK 0xfffffffffful /* 40-bit RPN (4K pages) */ | |
42 | #define TCE_RPN_SHIFT 12 | |
43 | #define TCE_VALID 0x800 /* TCE valid */ | |
44 | #define TCE_ALLIO 0x400 /* TCE valid for all lpars */ | |
45 | #define TCE_PCI_WRITE 0x2 /* write from PCI allowed */ | |
46 | #define TCE_PCI_READ 0x1 /* read from PCI allowed */ | |
47 | #define TCE_VB_WRITE 0x1 /* write from VB allowed */ | |
c707ffcf | 48 | |
88ced031 | 49 | #endif /* __KERNEL__ */ |
8882a4da | 50 | #endif /* _ASM_POWERPC_TCE_H */ |