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