projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e465058d JM |
1 | /* |
| 2 | * Derived from include/asm-powerpc/iommu.h | |
| 3 | * | |
| ff297b8c | 4 | * Copyright IBM Corporation, 2006-2007 |
| aa0a9f37 MBY |
5 | * |
| 6 | * Author: Jon Mason <jdmason@us.ibm.com> | |
| 7 | * Author: Muli Ben-Yehuda <muli@il.ibm.com> | |
| e465058d JM |
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 | ||
| 1965aae3 PA |
24 | #ifndef _ASM_X86_CALGARY_H |
| 25 | #define _ASM_X86_CALGARY_H | |
| e465058d | 26 | |
| e465058d JM |
27 | #include <linux/spinlock.h> |
| 28 | #include <linux/device.h> | |
| 29 | #include <linux/dma-mapping.h> | |
| e8edc6e0 | 30 | #include <linux/timer.h> |
| e465058d JM |
31 | #include <asm/types.h> |
| 32 | ||
| 33 | struct iommu_table { | |
| d6b56b0b | 34 | const struct cal_chipset_ops *chip_ops; /* chipset specific funcs */ |
| e465058d JM |
35 | unsigned long it_base; /* mapped address of tce table */ |
| 36 | unsigned long it_hint; /* Hint for next alloc */ | |
| 37 | unsigned long *it_map; /* A simple allocation bitmap for now */ | |
| 5f4a7a93 MBY |
38 | void __iomem *bbar; /* Bridge BAR */ |
| 39 | u64 tar_val; /* Table Address Register */ | |
| 40 | struct timer_list watchdog_timer; | |
| e465058d JM |
41 | spinlock_t it_lock; /* Protects it_map */ |
| 42 | unsigned int it_size; /* Size of iommu table in entries */ | |
| 43 | unsigned char it_busno; /* Bus number this table belongs to */ | |
| e465058d JM |
44 | }; |
| 45 | ||
| ff297b8c MBY |
46 | struct cal_chipset_ops { |
| 47 | void (*handle_quirks)(struct iommu_table *tbl, struct pci_dev *dev); | |
| 48 | void (*tce_cache_blast)(struct iommu_table *tbl); | |
| 8cb32dc7 | 49 | void (*dump_error_regs)(struct iommu_table *tbl); |
| ff297b8c MBY |
50 | }; |
| 51 | ||
| e465058d JM |
52 | #define TCE_TABLE_SIZE_UNSPECIFIED ~0 |
| 53 | #define TCE_TABLE_SIZE_64K 0 | |
| 54 | #define TCE_TABLE_SIZE_128K 1 | |
| 55 | #define TCE_TABLE_SIZE_256K 2 | |
| 56 | #define TCE_TABLE_SIZE_512K 3 | |
| 57 | #define TCE_TABLE_SIZE_1M 4 | |
| 58 | #define TCE_TABLE_SIZE_2M 5 | |
| 59 | #define TCE_TABLE_SIZE_4M 6 | |
| 60 | #define TCE_TABLE_SIZE_8M 7 | |
| 61 | ||
| bff6547b MBY |
62 | extern int use_calgary; |
| 63 | ||
| e465058d | 64 | #ifdef CONFIG_CALGARY_IOMMU |
| 480125ba | 65 | extern int detect_calgary(void); |
| e465058d | 66 | #else |
| 480125ba | 67 | static inline int detect_calgary(void) { return -ENODEV; } |
| e465058d JM |
68 | #endif |
| 69 | ||
| 1965aae3 | 70 | #endif /* _ASM_X86_CALGARY_H */ |