/* * Copyright (c) 2006, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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. * * Copyright (C) Ashok Raj <ashok.raj@intel.com> * Copyright (C) Shaohua Li <shaohua.li@intel.com> */ #ifndef __DMAR_H__ #define __DMAR_H__ #include <linux/acpi.h> #include <linux/types.h> #include <linux/msi.h> #ifdef CONFIG_DMAR struct intel_iommu; extern const char *dmar_get_fault_reason(u8 fault_reason); /* Can't use the common MSI interrupt functions * since DMAR is not a pci device */ extern void dmar_msi_unmask(unsigned int irq); extern void dmar_msi_mask(unsigned int irq); extern void dmar_msi_read(int irq, struct msi_msg *msg); extern void dmar_msi_write(int irq, struct msi_msg *msg); extern int dmar_set_interrupt(struct intel_iommu *iommu); extern int arch_setup_dmar_msi(unsigned int irq); /* Intel IOMMU detection and initialization functions */ extern void detect_intel_iommu(void); extern int intel_iommu_init(void); extern int dmar_table_init(void); extern int early_dmar_detect(void); extern struct list_head dmar_drhd_units; extern struct list_head dmar_rmrr_units; struct dmar_drhd_unit { struct list_head list; /* list of drhd units */ u64 reg_base_addr; /* register base address*/ struct pci_dev **devices; /* target device array */ int devices_cnt; /* target device count */ u8 ignored:1; /* ignore drhd */ u8 include_all:1; struct intel_iommu *iommu; }; struct dmar_rmrr_unit { struct list_head list; /* list of rmrr units */ u64 base_address; /* reserved base address*/ u64 end_address; /* reserved end address */ struct pci_dev **devices; /* target devices */ int devices_cnt; /* target device count */ }; #define for_each_drhd_unit(drhd) \ list_for_each_entry(drhd, &dmar_drhd_units, list) #define for_each_rmrr_units(rmrr) \ list_for_each_entry(rmrr, &dmar_rmrr_units, list) #else static inline void detect_intel_iommu(void) { return; } static inline int intel_iommu_init(void) { return -ENODEV; } #endif /* !CONFIG_DMAR */ #endif /* __DMAR_H__ */