| /* | |
| * Derived from include/asm-powerpc/iommu.h | |
| * | |
| * Copyright IBM Corporation, 2006-2007 | |
| * | |
| * Author: Jon Mason <jdmason@us.ibm.com> | |
| * Author: Muli Ben-Yehuda <muli@il.ibm.com> | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| */ | |
| #ifndef _ASM_X86_CALGARY_H | |
| #define _ASM_X86_CALGARY_H | |
| #include <linux/spinlock.h> | |
| #include <linux/device.h> | |
| #include <linux/dma-mapping.h> | |
| #include <linux/timer.h> | |
| #include <asm/types.h> | |
| struct iommu_table { | |
| const struct cal_chipset_ops *chip_ops; /* chipset specific funcs */ | |
| unsigned long it_base; /* mapped address of tce table */ | |
| unsigned long it_hint; /* Hint for next alloc */ | |
| unsigned long *it_map; /* A simple allocation bitmap for now */ | |
| void __iomem *bbar; /* Bridge BAR */ | |
| u64 tar_val; /* Table Address Register */ | |
| struct timer_list watchdog_timer; | |
| spinlock_t it_lock; /* Protects it_map */ | |
| unsigned int it_size; /* Size of iommu table in entries */ | |
| unsigned char it_busno; /* Bus number this table belongs to */ | |
| }; | |
| struct cal_chipset_ops { | |
| void (*handle_quirks)(struct iommu_table *tbl, struct pci_dev *dev); | |
| void (*tce_cache_blast)(struct iommu_table *tbl); | |
| void (*dump_error_regs)(struct iommu_table *tbl); | |
| }; | |
| #define TCE_TABLE_SIZE_UNSPECIFIED ~0 | |
| #define TCE_TABLE_SIZE_64K 0 | |
| #define TCE_TABLE_SIZE_128K 1 | |
| #define TCE_TABLE_SIZE_256K 2 | |
| #define TCE_TABLE_SIZE_512K 3 | |
| #define TCE_TABLE_SIZE_1M 4 | |
| #define TCE_TABLE_SIZE_2M 5 | |
| #define TCE_TABLE_SIZE_4M 6 | |
| #define TCE_TABLE_SIZE_8M 7 | |
| extern int use_calgary; | |
| #ifdef CONFIG_CALGARY_IOMMU | |
| extern int detect_calgary(void); | |
| #else | |
| static inline int detect_calgary(void) { return -ENODEV; } | |
| #endif | |
| #endif /* _ASM_X86_CALGARY_H */ |