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-rw-r--r--src/arch/i386/include/arch/acpi.h328
1 files changed, 167 insertions, 161 deletions
diff --git a/src/arch/i386/include/arch/acpi.h b/src/arch/i386/include/arch/acpi.h
index 928bd74b65..15e6ba74c4 100644
--- a/src/arch/i386/include/arch/acpi.h
+++ b/src/arch/i386/include/arch/acpi.h
@@ -21,7 +21,7 @@
*/
/*
- * coreboot ACPI Support - headers and defines.
+ * coreboot ACPI support - headers and defines.
*/
#ifndef __ASM_ACPI_H
@@ -31,73 +31,73 @@
#include <stdint.h>
-#define RSDP_SIG "RSD PTR " /* RSDT Pointer signature */
-#define ACPI_TABLE_CREATOR "COREBOOT"
-#define OEM_ID "CORE "
-#define ASLC "CORE"
-
-/* ACPI 3.0 table RSDP */
+#define RSDP_SIG "RSD PTR " /* RSDT pointer signature */
+#define ACPI_TABLE_CREATOR "COREBOOT" /* Must be exactly 8 bytes long! */
+#define OEM_ID "CORE " /* Must be exactly 6 bytes long! */
+#define ASLC "CORE" /* Must be exactly 4 bytes long! */
+/* RSDP (Root System Description Pointer) */
typedef struct acpi_rsdp {
- char signature[8]; /* RSDP signature "RSD PTR" */
- u8 checksum; /* checksum of the first 20 bytes */
- char oem_id[6]; /* OEM ID, "LXBIOS" */
- u8 revision; /* 0 for ACPI 1.0, 2 for ACPI 2.0/3.0 */
- u32 rsdt_address; /* physical address of RSDT */
- u32 length; /* total length of RSDP (including extended part) */
- u64 xsdt_address; /* physical address of XSDT */
- u8 ext_checksum; /* chechsum of whole table */
+ char signature[8]; /* RSDP signature */
+ u8 checksum; /* Checksum of the first 20 bytes */
+ char oem_id[6]; /* OEM ID */
+ u8 revision; /* 0 for ACPI 1.0, 2 for ACPI 2.0/3.0/4.0 */
+ u32 rsdt_address; /* Physical address of RSDT (32 bits) */
+ u32 length; /* Total RSDP length (incl. extended part) */
+ u64 xsdt_address; /* Physical address of XSDT (64 bits) */
+ u8 ext_checksum; /* Checksum of the whole table */
u8 reserved[3];
-} __attribute__((packed)) acpi_rsdp_t;
-
-/* Generic Address Container */
+} __attribute__ ((packed)) acpi_rsdp_t;
+/* Note: ACPI 1.0 didn't have length, xsdt_address, and ext_checksum. */
+/* GAS (Generic Address Structure) */
typedef struct acpi_gen_regaddr {
- u8 space_id;
- u8 bit_width;
- u8 bit_offset;
- u8 resv;
- u32 addrl;
- u32 addrh;
+ u8 space_id; /* Address space ID */
+ u8 bit_width; /* Register size in bits */
+ u8 bit_offset; /* Register bit offset */
+ u8 resv; /* FIXME: Access size in ACPI 2.0/3.0/4.0 */
+ u32 addrl; /* Register address, low 32 bits */
+ u32 addrh; /* Register address, high 32 bits */
} __attribute__ ((packed)) acpi_addr_t;
-#define ACPI_ADDRESS_SPACE_MEMORY 0
-#define ACPI_ADDRESS_SPACE_IO 1
-#define ACPI_ADDRESS_SPACE_PCI 2
-#define ACPI_ADDRESS_SPACE_FIXED 0x7f
-
-
-/* Generic ACPI Header, provided by (almost) all tables */
-
-typedef struct acpi_table_header /* ACPI common table header */
-{
- char signature [4]; /* ACPI signature (4 ASCII characters) */\
- u32 length; /* Length of table, in bytes, including header */\
- u8 revision; /* ACPI Specification minor version # */\
- u8 checksum; /* To make sum of entire table == 0 */\
- char oem_id [6]; /* OEM identification */\
- char oem_table_id [8]; /* OEM table identification */\
- u32 oem_revision; /* OEM revision number */\
- char asl_compiler_id [4]; /* ASL compiler vendor ID */\
+#define ACPI_ADDRESS_SPACE_MEMORY 0 /* System memory */
+#define ACPI_ADDRESS_SPACE_IO 1 /* System I/O */
+#define ACPI_ADDRESS_SPACE_PCI 2 /* PCI config space */
+#define ACPI_ADDRESS_SPACE_EC 3 /* Embedded controller */
+#define ACPI_ADDRESS_SPACE_SMBUS 4 /* SMBus */
+#define ACPI_ADDRESS_SPACE_FIXED 0x7f /* Functional fixed hardware */
+/* 0x80-0xbf: Reserved */
+/* 0xc0-0xff: OEM defined */
+
+/* Generic ACPI header, provided by (almost) all tables */
+typedef struct acpi_table_header {
+ char signature[4]; /* ACPI signature (4 ASCII characters) */
+ u32 length; /* Table length in bytes (incl. header) */
+ u8 revision; /* Table version (not ACPI version!) */
+ u8 checksum; /* To make sum of entire table == 0 */
+ char oem_id[6]; /* OEM identification */
+ char oem_table_id[8]; /* OEM table identification */
+ u32 oem_revision; /* OEM revision number */
+ char asl_compiler_id[4]; /* ASL compiler vendor ID */
u32 asl_compiler_revision; /* ASL compiler revision number */
} __attribute__ ((packed)) acpi_header_t;
-/* A maximum number of 32 ACPI tables ought to be enough for now */
+/* A maximum number of 32 ACPI tables ought to be enough for now. */
#define MAX_ACPI_TABLES 32
-/* RSDT */
+/* RSDT (Root System Description Table) */
typedef struct acpi_rsdt {
struct acpi_table_header header;
u32 entry[MAX_ACPI_TABLES];
} __attribute__ ((packed)) acpi_rsdt_t;
-/* XSDT */
+/* XSDT (Extended System Description Table) */
typedef struct acpi_xsdt {
struct acpi_table_header header;
u64 entry[MAX_ACPI_TABLES];
} __attribute__ ((packed)) acpi_xsdt_t;
-/* HPET TIMERS */
+/* HPET timers */
typedef struct acpi_hpet {
struct acpi_table_header header;
u32 id;
@@ -107,7 +107,7 @@ typedef struct acpi_hpet {
u8 attributes;
} __attribute__ ((packed)) acpi_hpet_t;
-/* MCFG */
+/* MCFG (PCI Express MMIO config space BAR description table) */
typedef struct acpi_mcfg {
struct acpi_table_header header;
u8 reserved[8];
@@ -122,104 +122,111 @@ typedef struct acpi_mcfg_mmconfig {
u8 reserved[4];
} __attribute__ ((packed)) acpi_mcfg_mmconfig_t;
-
-/* SRAT */
+/* SRAT (System Resource Affinity Table) */
typedef struct acpi_srat {
- struct acpi_table_header header;
- u32 resv;
+ struct acpi_table_header header;
+ u32 resv;
u64 resv1;
- /* followed by static resource allocation structure[n]*/
+ /* Followed by static resource allocation structure[n] */
} __attribute__ ((packed)) acpi_srat_t;
-
+/* SRAT: Processor Local APIC/SAPIC Affinity Structure */
typedef struct acpi_srat_lapic {
- u8 type;
- u8 length;
- u8 proximity_domain_7_0;
- u8 apic_id;
- u32 flags; /* enable bit 0 = 1, other bits reserved to 0 */
- u8 local_sapic_eid;
- u8 proximity_domain_31_8[3];
- u32 resv;
+ u8 type; /* Type (0) */
+ u8 length; /* Length in bytes (16) */
+ u8 proximity_domain_7_0; /* Proximity domain bits[7:0] */
+ u8 apic_id; /* Local APIC ID */
+ u32 flags; /* Enable bit 0 = 1, other bits reserved to 0 */
+ u8 local_sapic_eid; /* Local SAPIC EID */
+ u8 proximity_domain_31_8[3]; /* Proximity domain bits[31:8] */
+ u32 resv; /* TODO: Clock domain in ACPI 4.0. */
} __attribute__ ((packed)) acpi_srat_lapic_t;
+/* SRAT: Memory Affinity Structure */
typedef struct acpi_srat_mem {
- u8 type;
- u8 length;
- u32 proximity_domain;
- u16 resv;
- u32 base_address_low;
- u32 base_address_high;
- u32 length_low;
- u32 length_high;
+ u8 type; /* Type (1) */
+ u8 length; /* Length in bytes (40) */
+ u32 proximity_domain; /* Proximity domain */
+ u16 resv;
+ u32 base_address_low; /* Mem range base address, low */
+ u32 base_address_high; /* Mem range base address, high */
+ u32 length_low; /* Mem range length, low */
+ u32 length_high; /* Mem range length, high */
u32 resv1;
- u32 flags; /* enable bit 0, hot pluggable bit 1; Non Volatile bit 2, other bits reserved */
- u32 resv2[2];
+ u32 flags; /* Enable bit 0, hot pluggable bit 1; Non Volatile bit 2, other bits reserved to 0 */
+ u32 resv2[2];
} __attribute__ ((packed)) acpi_srat_mem_t;
-/* SLIT */
+/* SLIT (System Locality Distance Information Table) */
typedef struct acpi_slit {
- struct acpi_table_header header;
- /* followed by static resource allocation 8+byte[num*num]*/
+ struct acpi_table_header header;
+ /* Followed by static resource allocation 8+byte[num*num] */
} __attribute__ ((packed)) acpi_slit_t;
-
-/* MADT */
+/* MADT (Multiple APIC Description Table) */
typedef struct acpi_madt {
struct acpi_table_header header;
- u32 lapic_addr;
- u32 flags;
+ u32 lapic_addr; /* Local APIC address */
+ u32 flags; /* Multiple APIC flags */
} __attribute__ ((packed)) acpi_madt_t;
+/* MADT: APIC Structure Types */
+/* TODO: Convert to ALLCAPS. */
enum acpi_apic_types {
- LocalApic = 0,
- IOApic = 1,
- IRQSourceOverride = 2,
- NMIType = 3,
- LocalApicNMI = 4,
- LApicAddressOverride = 5,
- IOSApic = 6,
- LocalSApic = 7,
- PlatformIRQSources = 8
+ LocalApic = 0, /* Processor local APIC */
+ IOApic = 1, /* I/O APIC */
+ IRQSourceOverride = 2, /* Interrupt source override */
+ NMIType = 3, /* NMI source */
+ LocalApicNMI = 4, /* Local APIC NMI */
+ LApicAddressOverride = 5, /* Local APIC address override */
+ IOSApic = 6, /* I/O SAPIC */
+ LocalSApic = 7, /* Local SAPIC */
+ PlatformIRQSources = 8, /* Platform interrupt sources */
+ Localx2Apic = 9, /* Processor local x2APIC */
+ Localx2ApicNMI = 10, /* Local x2APIC NMI */
+ /* 0x0b-0x7f: Reserved */
+ /* 0x80-0xff: Reserved for OEM use */
};
+/* MADT: Processor Local APIC Structure */
typedef struct acpi_madt_lapic {
- u8 type;
- u8 length;
- u8 processor_id;
- u8 apic_id;
- u32 flags;
+ u8 type; /* Type (0) */
+ u8 length; /* Length in bytes (8) */
+ u8 processor_id; /* ACPI processor ID */
+ u8 apic_id; /* Local APIC ID */
+ u32 flags; /* Local APIC flags */
} __attribute__ ((packed)) acpi_madt_lapic_t;
+/* MADT: Local APIC NMI Structure */
typedef struct acpi_madt_lapic_nmi {
- u8 type;
- u8 length;
- u8 processor_id;
- u16 flags;
- u8 lint;
+ u8 type; /* Type (4) */
+ u8 length; /* Length in bytes (6) */
+ u8 processor_id; /* ACPI processor ID */
+ u16 flags; /* MPS INTI flags */
+ u8 lint; /* Local APIC LINT# */
} __attribute__ ((packed)) acpi_madt_lapic_nmi_t;
-
+/* MADT: I/O APIC Structure */
typedef struct acpi_madt_ioapic {
- u8 type;
- u8 length;
- u8 ioapic_id;
+ u8 type; /* Type (1) */
+ u8 length; /* Length in bytes (12) */
+ u8 ioapic_id; /* I/O APIC ID */
u8 reserved;
- u32 ioapic_addr;
- u32 gsi_base;
+ u32 ioapic_addr; /* I/O APIC address */
+ u32 gsi_base; /* Global system interrupt base */
} __attribute__ ((packed)) acpi_madt_ioapic_t;
+/* MADT: Interrupt Source Override Structure */
typedef struct acpi_madt_irqoverride {
- u8 type;
- u8 length;
- u8 bus;
- u8 source;
- u32 gsirq;
- u16 flags;
+ u8 type; /* Type (2) */
+ u8 length; /* Length in bytes (10) */
+ u8 bus; /* ISA (0) */
+ u8 source; /* Bus-relative int. source (IRQ) */
+ u32 gsirq; /* Global system interrupt */
+ u16 flags; /* MPS INTI flags */
} __attribute__ ((packed)) acpi_madt_irqoverride_t;
-/* FADT */
-
+/* FADT (Fixed ACPI Description Table) */
typedef struct acpi_fadt {
struct acpi_table_header header;
u32 firmware_ctrl;
@@ -272,16 +279,14 @@ typedef struct acpi_fadt {
struct acpi_gen_regaddr x_pm1a_evt_blk;
struct acpi_gen_regaddr x_pm1b_evt_blk;
struct acpi_gen_regaddr x_pm1a_cnt_blk;
- struct acpi_gen_regaddr x_pm1b_cnt_blk;
+ struct acpi_gen_regaddr x_pm1b_cnt_blk;
struct acpi_gen_regaddr x_pm2_cnt_blk;
struct acpi_gen_regaddr x_pm_tmr_blk;
struct acpi_gen_regaddr x_gpe0_blk;
struct acpi_gen_regaddr x_gpe1_blk;
} __attribute__ ((packed)) acpi_fadt_t;
-//
-// FADT Feature Flags
-//
+/* FADT Feature Flags */
#define ACPI_FADT_WBINVD (1 << 0)
#define ACPI_FADT_WBINVD_FLUSH (1 << 1)
#define ACPI_FADT_C1_SUPPORTED (1 << 2)
@@ -302,19 +307,16 @@ typedef struct acpi_fadt {
#define ACPI_FADT_REMOTE_POWER_ON (1 << 17)
#define ACPI_FADT_APIC_CLUSTER (1 << 18)
#define ACPI_FADT_APIC_PHYSICAL (1 << 19)
+/* Bits 20-31: reserved */
-//
-// FADT Boot Architecture Flags
-//
+/* FADT Boot Architecture Flags */
#define ACPI_FADT_LEGACY_DEVICES (1 << 0)
#define ACPI_FADT_8042 (1 << 1)
#define ACPI_FADT_VGA_NOT_PRESENT (1 << 2)
#define ACPI_FADT_MSI_NOT_SUPPORTED (1 << 3)
#define ACPI_FADT_NO_PCIE_ASPM_CONTROL (1 << 4)
-//
-// FADT Preferred Power Management Profile
-//
+/* FADT Preferred Power Management Profile */
enum acpi_preferred_pm_profiles {
PM_UNSPECIFIED = 0,
PM_DESKTOP = 1,
@@ -323,71 +325,74 @@ enum acpi_preferred_pm_profiles {
PM_ENTERPRISE_SERVER = 4,
PM_SOHO_SERVER = 5,
PM_APPLIANCE_PC = 6,
- PM_PERFORMANCE_SERVER = 7
+ PM_PERFORMANCE_SERVER = 7,
};
-/* FACS */
+/* FACS (Firmware ACPI Control Structure) */
typedef struct acpi_facs {
- char signature[4];
- u32 length;
- u32 hardware_signature;
- u32 firmware_waking_vector;
- u32 global_lock;
- u32 flags;
- u32 x_firmware_waking_vector_l;
- u32 x_firmware_waking_vector_h;
- u8 version;
- u8 resv[31];
+ char signature[4]; /* "FACS" */
+ u32 length; /* Length in bytes (>= 64) */
+ u32 hardware_signature; /* Hardware signature */
+ u32 firmware_waking_vector; /* Firmware waking vector */
+ u32 global_lock; /* Global lock */
+ u32 flags; /* FACS flags */
+ u32 x_firmware_waking_vector_l; /* X FW waking vector, low */
+ u32 x_firmware_waking_vector_h; /* X FW waking vector, high */
+ u8 version; /* ACPI 4.0: 2 */
+ u8 resv[31]; /* FIXME: 4.0: ospm_flags */
} __attribute__ ((packed)) acpi_facs_t;
-//
-// FACS Flags
-//
+/* FACS flags */
#define ACPI_FACS_S4BIOS_F (1 << 0)
+#define ACPI_FACS_64BIT_WAKE_F (1 << 1)
+/* Bits 31..2: reserved */
+/* ECDT (Embedded Controller Boot Resources Table) */
typedef struct acpi_ecdt {
struct acpi_table_header header;
- struct acpi_gen_regaddr ec_control;
- struct acpi_gen_regaddr ec_data;
- u32 uid;
- u8 gpe_bit;
- u8 ec_id[];
+ struct acpi_gen_regaddr ec_control; /* EC control register */
+ struct acpi_gen_regaddr ec_data; /* EC data register */
+ u32 uid; /* UID */
+ u8 gpe_bit; /* GPE bit */
+ u8 ec_id[]; /* EC ID */
} __attribute__ ((packed)) acpi_ecdt_t;
-
-/* These are implemented by the target port or north/southbridge*/
+/* These are implemented by the target port or north/southbridge. */
unsigned long write_acpi_tables(unsigned long addr);
unsigned long acpi_fill_madt(unsigned long current);
unsigned long acpi_fill_mcfg(unsigned long current);
unsigned long acpi_fill_srat(unsigned long current);
unsigned long acpi_fill_slit(unsigned long current);
-unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id);
+unsigned long acpi_fill_ssdt_generator(unsigned long current,
+ const char *oem_table_id);
void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id);
void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs, void *dsdt);
-void update_ssdt(void* ssdt);
-void update_ssdtx(void* ssdtx, int i);
+void update_ssdt(void *ssdt);
+void update_ssdtx(void *ssdtx, int i);
-/* These can be used by the target port */
+/* These can be used by the target port. */
u8 acpi_checksum(u8 *table, u32 length);
void acpi_add_table(acpi_rsdp_t *rsdp, void *table);
-
int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic);
-int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,u32 gsi_base);
+int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,
+ u32 gsi_base);
int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride,
- u8 bus, u8 source, u32 gsirq, u16 flags);
+ u8 bus, u8 source, u32 gsirq, u16 flags);
int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu,
- u16 flags, u8 lint);
+ u16 flags, u8 lint);
void acpi_create_madt(acpi_madt_t *madt);
unsigned long acpi_create_madt_lapics(unsigned long current);
-unsigned long acpi_create_madt_lapic_nmis(unsigned long current, u16 flags, u8 lint);
-
+unsigned long acpi_create_madt_lapic_nmis(unsigned long current, u16 flags,
+ u8 lint);
int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic);
-int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek,u32 sizek, u32 flags);
-int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base, u16 seg_nr, u8 start, u8 end);
+int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek,u32 sizek,
+ u32 flags);
+int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base,
+ u16 seg_nr, u8 start, u8 end);
unsigned long acpi_create_srat_lapics(unsigned long current);
void acpi_create_srat(acpi_srat_t *srat);
@@ -422,18 +427,19 @@ int acpi_get_sleep_type(void);
/* northbridge/amd/amdfam10/amdfam10_acpi.c */
unsigned long acpi_add_ssdt_pstates(acpi_rsdp_t *rsdp, unsigned long current);
+
/* cpu/intel/speedstep/acpi.c */
void generate_cpu_entries(void);
-#define ACPI_WRITE_MADT_IOAPIC(dev,id) \
-do { \
- struct resource *res; \
- res = find_resource(dev, PCI_BASE_ADDRESS_0); \
- if (!res) break; \
+#define ACPI_WRITE_MADT_IOAPIC(dev,id) \
+do { \
+ struct resource *res; \
+ res = find_resource(dev, PCI_BASE_ADDRESS_0); \
+ if (!res) break; \
current += acpi_create_madt_ioapic( \
(acpi_madt_ioapic_t *)current, \
id, res->base, gsi_base); \
- gsi_base+=4; \
+ gsi_base += 4; \
} while(0);
#else // CONFIG_GENERATE_ACPI_TABLES
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 03:41:24 +0000