Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/x86/include/asm/calgary.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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> */ #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 */
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