ACPICA commit 3dae756631c8c2baddfa19f43a379aee42b28312 This patch adds unified HMAT table structure definitions so that ACPICA users can develop HMAT related OS features based on the ACPICA standard structures. Lv Zheng. Link: https://github.com/acpica/acpica/commit/3dae7566 Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> --- include/acpi/actbl1.h | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index b4ce55c..49d5487 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -65,6 +65,7 @@ #define ACPI_SIG_ECDT "ECDT" /* Embedded Controller Boot Resources Table */ #define ACPI_SIG_EINJ "EINJ" /* Error Injection table */ #define ACPI_SIG_ERST "ERST" /* Error Record Serialization Table */ +#define ACPI_SIG_HMAT "HMAT" /* Heterogeneous Memory Attributes Table */ #define ACPI_SIG_HEST "HEST" /* Hardware Error Source Table */ #define ACPI_SIG_MADT "APIC" /* Multiple APIC Description Table */ #define ACPI_SIG_MSCT "MSCT" /* Maximum System Characteristics Table */ @@ -688,6 +689,122 @@ struct acpi_hest_generic_data_v300 { /******************************************************************************* * + * HMAT - Heterogeneous Memory Attributes Table (ACPI 6.2) + * Version 1 + * + ******************************************************************************/ + +struct acpi_table_hmat { + struct acpi_table_header header; /* Common ACPI table header */ + u32 reserved; +}; + +/* Values for HMAT structure types */ + +enum acpi_hmat_type { + ACPI_HMAT_TYPE_ADDRESS_RANGE = 0, /* Memory subystem address range */ + ACPI_HMAT_TYPE_LOCALITY = 1, /* System locality latency and bandwidth information */ + ACPI_HMAT_TYPE_CACHE = 2, /* Memory side cache information */ + ACPI_HMAT_TYPE_RESERVED = 3 /* 3 and greater are reserved */ +}; + +struct acpi_hmat_structure { + u16 type; + u16 reserved; + u32 length; +}; + +/* + * HMAT Structures, correspond to Type in struct acpi_hmat_structure + */ + +/* 0: Memory subystem address range */ + +struct acpi_hmat_address_range { + struct acpi_hmat_structure header; + u16 flags; + u16 reserved1; + u32 processor_PD; /* Processor proximity domain */ + u32 memory_PD; /* Memory proximity domain */ + u32 reserved2; + u64 physical_address_base; /* Physical address range base */ + u64 physical_address_length; /* Physical address range length */ +}; + +/* Masks for Flags field above */ + +#define ACPI_HMAT_PROCESSOR_PD_VALID (1) /* 1: processor_PD field is valid */ +#define ACPI_HMAT_MEMORY_PD_VALID (1<<1) /* 1: memory_PD field is valid */ +#define ACPI_HMAT_RESERVATION_HINT (1<<2) /* 1: Reservation hint */ + +/* 1: System locality latency and bandwidth information */ + +struct acpi_hmat_locality { + struct acpi_hmat_structure header; + u8 flags; + u8 data_type; + u16 reserved1; + u32 number_of_initiator_Pds; + u32 number_of_target_Pds; + u32 reserved2; + u64 entry_base_unit; +}; + +/* Masks for Flags field above */ + +#define ACPI_HMAT_MEMORY_HIERARCHY (0x0F) + +/* Values for Memory Hierarchy flag */ + +#define ACPI_HMAT_MEMORY 0 +#define ACPI_HMAT_LAST_LEVEL_CACHE 1 +#define ACPI_HMAT_1ST_LEVEL_CACHE 2 +#define ACPI_HMAT_2ND_LEVEL_CACHE 3 +#define ACPI_HMAT_3RD_LEVEL_CACHE 4 + +/* Values for data_type field above */ + +#define ACPI_HMAT_ACCESS_LATENCY 0 +#define ACPI_HMAT_READ_LATENCY 1 +#define ACPI_HMAT_WRITE_LATENCY 2 +#define ACPI_HMAT_ACCESS_BANDWIDTH 3 +#define ACPI_HMAT_READ_BANDWIDTH 4 +#define ACPI_HMAT_WRITE_BANDWIDTH 5 + +/* 2: Memory side cache information */ + +struct acpi_hmat_cache { + struct acpi_hmat_structure header; + u32 memory_PD; + u32 reserved1; + u64 cache_size; + u32 cache_attributes; + u16 reserved2; + u16 number_of_SMBIOShandles; +}; + +/* Masks for cache_attributes field above */ + +#define ACPI_HMAT_TOTAL_CACHE_LEVEL (0x0000000F) +#define ACPI_HMAT_CACHE_LEVEL (0x000000F0) +#define ACPI_HMAT_CACHE_ASSOCIATIVITY (0x00000F00) +#define ACPI_HMAT_WRITE_POLICY (0x0000F000) +#define ACPI_HMAT_CACHE_LINE_SIZE (0xFFFF0000) + +/* Values for cache associativity flag */ + +#define ACPI_HMAT_CA_NONE (0) +#define ACPI_HMAT_CA_DIRECT_MAPPED (1) +#define ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING (2) + +/* Values for write policy flag */ + +#define ACPI_HMAT_CP_NONE (0) +#define ACPI_HMAT_CP_WB (1) +#define ACPI_HMAT_CP_WT (2) + +/******************************************************************************* + * * MADT - Multiple APIC Description Table * Version 3 * -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
