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Diffstat (limited to 'src/include/acpi/acpi_ivrs.h')
| -rw-r--r-- | src/include/acpi/acpi_ivrs.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/include/acpi/acpi_ivrs.h b/src/include/acpi/acpi_ivrs.h new file mode 100644 index 0000000000..83abfb63dc --- /dev/null +++ b/src/include/acpi/acpi_ivrs.h @@ -0,0 +1,143 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* This file is part of the coreboot project. */ + +/* + * AMD I/O Virtualization Technology (IOMMU) + * Specification 48882-Rev 2.62-February 2015 + * + * from http://www.uefi.org/acpi + * I/O Virtualization Reporting Structure (IVRS) + */ + +#ifndef __ARCH_ACPI_IVRS_H +#define __ARCH_ACPI_IVRS_H + +/* I/O Virtualization Reporting Structure (IVRS) */ +#define IVHD_BLOCK_TYPE_LEGACY__FIXED 0x10 +#define IVHD_BLOCK_TYPE_FULL__FIXED 0x11 +#define IVHD_BLOCK_TYPE_FULL__ACPI_HID 0x40 + +/* IVRS Revision Field */ +#define IVRS_FORMAT_FIXED 0x01 /* Type 10h & 11h only */ +#define IVRS_FORMAT_MIXED 0x02 /* Type 10h, 11h, & 40h */ + +/* IVRS IVinfo Field */ +/* ATS response address range reserved */ +#define IVINFO_HT_ATS_RESERVED (1 << 22) + +/* Virtual Address size - All other values are reserved */ +#define IVINFO_VA_SIZE_32_BITS (0x20 << 15) +#define IVINFO_VA_SIZE_40_BITS (0x28 << 15) +#define IVINFO_VA_SIZE_48_BITS (0x30 << 15) +#define IVINFO_VA_SIZE_64_BITS (0x40 << 15) + +/* Physical Address size - All other values are reserved */ +#define IVINFO_PA_SIZE_40_BITS (0x28 << 8) +#define IVINFO_PA_SIZE_48_BITS (0x30 << 8) +#define IVINFO_PA_SIZE_52_BITS (0x34 << 8) + +/* Guest Virtual Address size - All other values are reserved */ +#define IVINFO_GVA_SIZE_48_BITS (0x02 << 5) + +/* Extended Feature Support */ +#define IVINFO_EFR_SUPPORTED 0x01 + +/* IVHD Flags Field */ +#define IVHD_FLAG_PPE_SUP (1 << 7) /* Type 10h only */ +#define IVHD_FLAG_PREF_SUP (1 << 6) /* Type 10h only */ +#define IVHD_FLAG_COHERENT (1 << 5) +#define IVHD_FLAG_IOTLB_SUP (1 << 4) +#define IVHD_FLAG_ISOC (1 << 3) +#define IVHD_FLAG_RES_PASS_PW (1 << 2) +#define IVHD_FLAG_PASS_PW (1 << 1) +#define IVHD_FLAG_HT_TUN_EN (1 << 0) + +/* IVHD IOMMU Info Field */ +#define IOMMU_INFO_UNIT_ID_SHIFT 8 + +/* IVHD IOMMU Feature Reporting Field */ +#define IOMMU_FEATURE_HATS_SHIFT 30 /* Type 10h only */ +#define IOMMU_FEATURE_GATS_SHIFT 28 /* Type 10h only */ +#define IOMMU_FEATURE_MSI_NUM_PPR_SHIFT 23 +#define IOMMU_FEATURE_PN_BANKS_SHIFT 17 +#define IOMMU_FEATURE_PN_COUNTERS_SHIFT 13 +#define IOMMU_FEATURE_PA_SMAX_SHIFT 8 /* Type 10h only */ + +#define IOMMU_FEATURE_HE_SUP (1 << 7) /* Type 10h only */ +#define IOMMU_FEATURE_GA_SUP (1 << 6) /* Type 10h only */ +#define IOMMU_FEATURE_IA_SUP (1 << 5) /* Type 10h only */ +#define IOMMU_FEATURE_GLX_SINGLE_LEVEL (0 << 3) /* Type 10h only */ +#define IOMMU_FEATURE_GLX_TWO_LEVEL (1 << 3) /* Type 10h only */ +#define IOMMU_FEATURE_GLX_THREE_LEVEL (2 << 3) /* Type 10h only */ +#define IOMMU_FEATURE_GT_SUP (1 << 1) /* Type 10h only */ +#define IOMMU_FEATURE_NX_SUP (1 << 0) /* Type 10h only */ + +/* IVHD Device Entry Type Codes */ +#define IVHD_DEV_4_BYTE_ALL 0x01 +#define IVHD_DEV_4_BYTE_SELECT 0x02 +#define IVHD_DEV_4_BYTE_START_RANGE 0x03 +#define IVHD_DEV_4_BYTE_END_RANGE 0x04 +#define IVHD_DEV_8_BYTE_ALIAS_SELECT 0x42 +#define IVHD_DEV_8_BYTE_ALIAS_START_RANGE 0x43 +#define IVHD_DEV_8_BYTE_EXT_SELECT 0x46 +#define IVHD_DEV_8_BYTE_EXT_START_RANGE 0x47 +#define IVHD_DEV_8_BYTE_EXT_SPECIAL_DEV 0x48 +#define IVHD_DEV_VARIABLE 0xF0 + +/* IVHD Device Table Entry (DTE) Settings */ +#define IVHD_DTE_LINT_1_PASS (1 << 7) +#define IVHD_DTE_LINT_0_PASS (1 << 6) +#define IVHD_DTE_SYS_MGT_TGT_ABT (0 << 4) +#define IVHD_DTE_SYS_MGT_NO_TRANS (1 << 4) +#define IVHD_DTE_SYS_MGT_INTX_NO_TRANS (2 << 4) +#define IVHD_DTE_SYS_MGT_TRANS (3 << 4) +#define IVHD_DTE_NMI_PASS (1 << 2) +#define IVHD_DTE_EXT_INT_PASS (1 << 1) +#define IVHD_DTE_INIT_PASS (1 << 0) + +/* IVHD Device Entry Extended DTE Setting Field */ +#define IVHD_DEV_EXT_ATS_DISABLE (1 << 31) + +/* IVHD Special Device Entry Variety Field */ +#define IVHD_SPECIAL_DEV_IOAPIC 0x01 +#define IVHD_SPECIAL_DEV_HPET 0x02 + +/* Device EntryType F0h UID Format */ +#define IVHD_UID_NOT_PRESENT 0x00 +#define IVHD_UID_INT 0x01 +#define IVHD_UID_STRING 0x02 + +/* IVHD (I/O Virtualization Hardware Definition Block) 4-byte entry */ +typedef struct ivrs_ivhd_generic { + uint8_t type; + uint16_t dev_id; + uint8_t dte_setting; +} __packed ivrs_ivhd_generic_t; + +/* IVHD (I/O Virtualization Hardware Definition Block) 8-byte entries */ +typedef struct ivrs_ivhd_alias { + uint8_t type; + uint16_t dev_id; + uint8_t dte_setting; + uint8_t reserved1; + uint16_t source_dev_id; + uint8_t reserved2; +} __packed ivrs_ivhd_alias_t; + +typedef struct ivrs_ivhd_extended { + uint8_t type; + uint16_t dev_id; + uint8_t dte_setting; + uint32_t extended_dte_setting; +} __packed ivrs_ivhd_extended_t; + +typedef struct ivrs_ivhd_special { + uint8_t type; + uint16_t reserved; + uint8_t dte_setting; + uint8_t handle; + uint16_t source_dev_id; + uint8_t variety; +} __packed ivrs_ivhd_special_t; + +#endif |