diff options
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/actbl2.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 42b5753dd78c..655102bc6d14 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -357,7 +357,7 @@ struct acpi_table_bdat { * IORT - IO Remapping Table * * Conforms to "IO Remapping Table System Software on ARM Platforms", - * Document number: ARM DEN 0049E.b, Feb 2021 + * Document number: ARM DEN 0049E.d, Feb 2022 * ******************************************************************************/ @@ -454,7 +454,8 @@ struct acpi_iort_root_complex { u32 ats_attribute; u32 pci_segment_number; u8 memory_address_limit; /* Memory address size limit */ - u8 reserved[3]; /* Reserved, must be zero */ + u16 pasid_capabilities; /* PASID Capabilities */ + u8 reserved[1]; /* Reserved, must be zero */ }; /* Masks for ats_attribute field above */ @@ -463,6 +464,9 @@ struct acpi_iort_root_complex { #define ACPI_IORT_PRI_SUPPORTED (1<<1) /* The root complex PRI support */ #define ACPI_IORT_PASID_FWD_SUPPORTED (1<<2) /* The root complex PASID forward support */ +/* Masks for pasid_capabilities field above */ +#define ACPI_IORT_PASID_MAX_WIDTH (0x1F) /* Bits 0-4 */ + struct acpi_iort_smmu { u64 base_address; /* SMMU base address */ u64 span; /* Length of memory range */ @@ -538,6 +542,25 @@ struct acpi_iort_rmr { u32 rmr_offset; }; +/* Masks for Flags field above */ +#define ACPI_IORT_RMR_REMAP_PERMITTED (1) +#define ACPI_IORT_RMR_ACCESS_PRIVILEGE (1<<1) + +/* + * Macro to access the Access Attributes in flags field above: + * Access Attributes is encoded in bits 9:2 + */ +#define ACPI_IORT_RMR_ACCESS_ATTRIBUTES(flags) (((flags) >> 2) & 0xFF) + +/* Values for above Access Attributes */ + +#define ACPI_IORT_RMR_ATTR_DEVICE_NGNRNE 0x00 +#define ACPI_IORT_RMR_ATTR_DEVICE_NGNRE 0x01 +#define ACPI_IORT_RMR_ATTR_DEVICE_NGRE 0x02 +#define ACPI_IORT_RMR_ATTR_DEVICE_GRE 0x03 +#define ACPI_IORT_RMR_ATTR_NORMAL_NC 0x04 +#define ACPI_IORT_RMR_ATTR_NORMAL_IWB_OWB 0x05 + struct acpi_iort_rmr_desc { u64 base_address; u64 length; |