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- /*
- * 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 {
- 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 */
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