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/* 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 __ACPI_ACPI_IVRS_H__
#define __ACPI_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 /* __ACPI_ACPI_IVRS_H__ */
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