diff options
Diffstat (limited to 'include/linux/dmar.h')
| -rw-r--r-- | include/linux/dmar.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/include/linux/dmar.h b/include/linux/dmar.h new file mode 100644 index 000000000000..ffb6439cb5e6 --- /dev/null +++ b/include/linux/dmar.h | |||
| @@ -0,0 +1,86 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2006, Intel Corporation. | ||
| 3 | * | ||
| 4 | * This program is free software; you can redistribute it and/or modify it | ||
| 5 | * under the terms and conditions of the GNU General Public License, | ||
| 6 | * version 2, as published by the Free Software Foundation. | ||
| 7 | * | ||
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
| 11 | * more details. | ||
| 12 | * | ||
| 13 | * You should have received a copy of the GNU General Public License along with | ||
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | ||
| 15 | * Place - Suite 330, Boston, MA 02111-1307 USA. | ||
| 16 | * | ||
| 17 | * Copyright (C) Ashok Raj <ashok.raj@intel.com> | ||
| 18 | * Copyright (C) Shaohua Li <shaohua.li@intel.com> | ||
| 19 | */ | ||
| 20 | |||
| 21 | #ifndef __DMAR_H__ | ||
| 22 | #define __DMAR_H__ | ||
| 23 | |||
| 24 | #include <linux/acpi.h> | ||
| 25 | #include <linux/types.h> | ||
| 26 | #include <linux/msi.h> | ||
| 27 | |||
| 28 | #ifdef CONFIG_DMAR | ||
| 29 | struct intel_iommu; | ||
| 30 | |||
| 31 | extern char *dmar_get_fault_reason(u8 fault_reason); | ||
| 32 | |||
| 33 | /* Can't use the common MSI interrupt functions | ||
| 34 | * since DMAR is not a pci device | ||
| 35 | */ | ||
| 36 | extern void dmar_msi_unmask(unsigned int irq); | ||
| 37 | extern void dmar_msi_mask(unsigned int irq); | ||
| 38 | extern void dmar_msi_read(int irq, struct msi_msg *msg); | ||
| 39 | extern void dmar_msi_write(int irq, struct msi_msg *msg); | ||
| 40 | extern int dmar_set_interrupt(struct intel_iommu *iommu); | ||
| 41 | extern int arch_setup_dmar_msi(unsigned int irq); | ||
| 42 | |||
| 43 | /* Intel IOMMU detection and initialization functions */ | ||
| 44 | extern void detect_intel_iommu(void); | ||
| 45 | extern int intel_iommu_init(void); | ||
| 46 | |||
| 47 | extern int dmar_table_init(void); | ||
| 48 | extern int early_dmar_detect(void); | ||
| 49 | |||
| 50 | extern struct list_head dmar_drhd_units; | ||
| 51 | extern struct list_head dmar_rmrr_units; | ||
| 52 | |||
| 53 | struct dmar_drhd_unit { | ||
| 54 | struct list_head list; /* list of drhd units */ | ||
| 55 | u64 reg_base_addr; /* register base address*/ | ||
| 56 | struct pci_dev **devices; /* target device array */ | ||
| 57 | int devices_cnt; /* target device count */ | ||
| 58 | u8 ignored:1; /* ignore drhd */ | ||
| 59 | u8 include_all:1; | ||
| 60 | struct intel_iommu *iommu; | ||
| 61 | }; | ||
| 62 | |||
| 63 | struct dmar_rmrr_unit { | ||
| 64 | struct list_head list; /* list of rmrr units */ | ||
| 65 | u64 base_address; /* reserved base address*/ | ||
| 66 | u64 end_address; /* reserved end address */ | ||
| 67 | struct pci_dev **devices; /* target devices */ | ||
| 68 | int devices_cnt; /* target device count */ | ||
| 69 | }; | ||
| 70 | |||
| 71 | #define for_each_drhd_unit(drhd) \ | ||
| 72 | list_for_each_entry(drhd, &dmar_drhd_units, list) | ||
| 73 | #define for_each_rmrr_units(rmrr) \ | ||
| 74 | list_for_each_entry(rmrr, &dmar_rmrr_units, list) | ||
| 75 | #else | ||
| 76 | static inline void detect_intel_iommu(void) | ||
| 77 | { | ||
| 78 | return; | ||
| 79 | } | ||
| 80 | static inline int intel_iommu_init(void) | ||
| 81 | { | ||
| 82 | return -ENODEV; | ||
| 83 | } | ||
| 84 | |||
| 85 | #endif /* !CONFIG_DMAR */ | ||
| 86 | #endif /* __DMAR_H__ */ | ||