diff options
Diffstat (limited to 'src/include/acpi')
| -rw-r--r-- | src/include/acpi/acpi.h | 109 |
1 files changed, 108 insertions, 1 deletions
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h index 0941deedfd..a298e39143 100644 --- a/src/include/acpi/acpi.h +++ b/src/include/acpi/acpi.h @@ -93,6 +93,7 @@ enum acpi_tables { LPIT, /* Low Power Idle Table */ MADT, /* Multiple APIC Description Table */ MCFG, /* PCI Express Memory Mapped Configuration */ + PPTT, /* Processor Properties Topology Table */ RSDP, /* Root System Description Pointer */ RSDT, /* Root System Description Table */ SLIT, /* System Locality Distance Information Table */ @@ -102,7 +103,6 @@ enum acpi_tables { TCPA, /* Trusted Computing Platform Alliance Table */ TPM2, /* Trusted Platform Module 2.0 Table */ XSDT, /* Extended System Description Table */ - /* Additional proprietary tables used by coreboot */ CRAT, /* Component Resource Attribute Table */ NHLT, /* Non HD audio Link Table */ @@ -1419,6 +1419,110 @@ typedef struct acpi_einj { acpi_einj_action_table_t action_table[ACTION_COUNT]; } __packed acpi_einj_t; +/* PPTT definitions */ + +#define PPTT_NODE_TYPE_CPU 0 +#define PPTT_NODE_TYPE_CACHE 1 + +/* PPTT structures for ACPI generation */ + +typedef struct acpi_pptt_cpu_node { + u8 type; // type = 0 (processor structure specification) + u8 length; // in bytes + u8 reserved[2]; // reserved, must be zero + u32 flags; // processor hierarchy node structure flags + u32 parent; // reference (delta of pptt-start and node) to parent node, must be zero if no parent + u32 processor_id; // must match id in MADT, if actual processor + u32 n_resources; // number of resource structure references + u32 resources[]; // resource structure references +} acpi_pptt_cpu_node_t; + +typedef struct acpi_pptt_cache_node { + u8 type; // type = 1 (cache type structure) + u8 length; // length = 28 + u8 reserved[2]; // reserved, must be zero + u32 flags; // cache structure flags + u32 next_level; // reference to next level cache, null if last cache level + u32 size; // cache size in bytes + u32 n_sets; // number of sets in the cache + u8 associativity; // integer number of ways + u8 attributes; // bits[7:5] reserved, must be zero + u16 line_size; // in bytes + u32 cache_id; // unique, non-zero +} acpi_pptt_cache_node_t; + +union acpi_pptt_body { + acpi_pptt_cpu_node_t cpu; + acpi_pptt_cache_node_t cache; +}; + +typedef struct acpi_pptt { + acpi_header_t header; + + /* + * followed by a variable length body + * consisting of processor topology structures. + * + * see acpi_pptt_cpu_node and + * acpi_pptt_cache_node. + */ + union acpi_pptt_body body[]; +} __packed acpi_pptt_t; + +/* PPTT structures for topology description */ + +union pptt_cache_flags { + struct { + u32 size_valid : 1; + u32 n_sets_valid : 1; + u32 associativity_valid : 1; + u32 alloc_type_valid : 1; + u32 cache_type_valid : 1; + u32 write_policy_valid : 1; + u32 line_size_valid : 1; + u32 cache_id_valid : 1; + u32 reserved : 24; + }; + + u32 raw; +}; + +union pptt_cpu_flags { + struct { + u32 is_physical_package : 1; + u32 processor_id_valid : 1; + u32 is_thread : 1; + u32 is_leaf : 1; + u32 is_identical_impl : 1; + u32 reserved : 27; + }; + + u32 raw; +}; + +struct pptt_cache { + u32 size; + u32 numsets; + u8 associativity; + u8 attributes; + u16 line_size; + union pptt_cache_flags flags; + struct pptt_cache *next_level; +}; + +struct pptt_cpu_resources { + struct pptt_cache *cache; + struct pptt_cpu_resources *next; +}; + +struct pptt_topology { + u32 processor_id; + union pptt_cpu_flags flags; + struct pptt_cpu_resources *resources; + struct pptt_topology *sibling; + struct pptt_topology *child; +}; + /* SPCR (Serial Port Console Redirection Table) */ typedef struct acpi_spcr { acpi_header_t header; @@ -1589,6 +1693,9 @@ int acpi_create_cedt_chbs(acpi_cedt_chbs_t *chbs, u32 uid, u32 cxl_ver, u64 base int acpi_create_cedt_cfmws(acpi_cedt_cfmws_t *cfmws, u64 base_hpa, u64 window_size, u8 eniw, u32 hbig, u16 restriction, u16 qtg_id, const u32 *interleave_target); +/* PPTT related functions */ +void acpi_create_pptt_body(acpi_pptt_t *pptt); +struct pptt_topology *acpi_get_pptt_topology(void); int acpi_create_madt_ioapic_from_hw(acpi_madt_ioapic_t *ioapic, u32 addr); |