mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-13 21:31:56 +00:00
d98f7b1895
As well as normalizing its signature declaration through header. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2020 Intel Corporation
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef ZEPHYR_INCLUDE_ARCH_X86_ACPI_H
|
|
#define ZEPHYR_INCLUDE_ARCH_X86_ACPI_H
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
|
|
#define ACPI_RSDP_SIGNATURE 0x2052545020445352 /* == "RSD PTR " */
|
|
|
|
/* Root System Description Pointer */
|
|
struct acpi_rsdp {
|
|
char signature[8];
|
|
uint8_t chksum;
|
|
char oem_id[6];
|
|
uint8_t revision;
|
|
uint32_t rsdt_ptr;
|
|
uint32_t length;
|
|
uint64_t xsdt_ptr;
|
|
uint8_t ext_chksum;
|
|
uint8_t _reserved[3];
|
|
} __packed;
|
|
|
|
/* Standard table header */
|
|
struct acpi_sdt {
|
|
uint32_t signature;
|
|
uint32_t length;
|
|
uint8_t revision;
|
|
uint8_t chksum;
|
|
char oem_id[6];
|
|
char oem_table_id[8];
|
|
uint32_t oem_revision;
|
|
uint32_t creator_id;
|
|
uint32_t creator_revision;
|
|
} __packed;
|
|
|
|
/* Root System Description Table */
|
|
struct acpi_rsdt {
|
|
struct acpi_sdt sdt;
|
|
uint32_t table_ptrs[];
|
|
} __packed;
|
|
|
|
/* eXtended System Descriptor Table */
|
|
struct acpi_xsdt {
|
|
struct acpi_sdt sdt;
|
|
uint64_t table_ptrs[];
|
|
} __packed;
|
|
|
|
/* MCFG table storing MMIO addresses for PCI configuration space */
|
|
|
|
#define ACPI_MCFG_SIGNATURE 0x4746434d /* 'MCFG' */
|
|
|
|
struct acpi_mcfg {
|
|
struct acpi_sdt sdt;
|
|
uint64_t _reserved;
|
|
struct {
|
|
uint64_t base_addr;
|
|
uint16_t seg_group_num;
|
|
uint8_t start_bus;
|
|
uint8_t end_bus;
|
|
} pci_segs[];
|
|
} __packed;
|
|
|
|
/* MADT table storing IO-APIC and multiprocessor configuration */
|
|
|
|
#define ACPI_MADT_SIGNATURE 0x43495041 /* 'APIC' */
|
|
|
|
struct acpi_madt_entry {
|
|
uint8_t type; /* See ACPI_MADT_ENTRY_* below */
|
|
uint8_t length;
|
|
} __packed;
|
|
|
|
#define ACPI_MADT_ENTRY_CPU 0
|
|
|
|
struct acpi_madt {
|
|
struct acpi_sdt sdt;
|
|
uint32_t loapic; /* local APIC MMIO address */
|
|
uint32_t flags; /* see ACPI_MADT_FLAGS_* below */
|
|
struct acpi_madt_entry entries[];
|
|
} __packed;
|
|
|
|
#define ACPI_MADT_FLAGS_PICS 0x01 /* legacy 8259s installed */
|
|
|
|
struct acpi_cpu {
|
|
struct acpi_madt_entry entry;
|
|
uint8_t acpi_id;
|
|
uint8_t apic_id; /* local APIC ID */
|
|
uint8_t flags; /* see ACPI_CPU_FLAGS_* below */
|
|
} __packed;
|
|
|
|
#define ACPI_CPU_FLAGS_ENABLED 0x01
|
|
|
|
#if defined(CONFIG_ACPI)
|
|
|
|
void *z_acpi_find_table(uint32_t signature);
|
|
|
|
struct acpi_cpu *z_acpi_get_cpu(int n);
|
|
|
|
#else /* CONFIG_ACPI */
|
|
|
|
#define z_acpi_find_table(...) NULL
|
|
#define z_acpi_get_cpu(...) NULL
|
|
|
|
#endif /* CONFIG_ACPI */
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
|
|
#endif /* ZEPHYR_INCLUDE_ARCH_X86_ACPI_H */
|