127 lines
2.4 KiB
C
127 lines
2.4 KiB
C
#ifndef ARCH_ACPI_H_
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#define ARCH_ACPI_H_
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#include <socks/compiler.h>
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#include <socks/status.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ACPI_MADT_LAPIC 0x00
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#define ACPI_MADT_IOAPIC 0x01
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#define ACPI_MADT_IRQSRC_OVERRIDE 0x02
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#define ACPI_MADT_LAPIC_OVERRIDE 0x05
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#define ACPI_SIG_RSDP 0x2052545020445352ULL
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#define ACPI_SIG_FADT 0x50434146
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#define ACPI_SIG_MADT 0x43495041
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#define AP_TRAMPOLINE_PADDR 0x8000
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#define LAPIC_IPI_STATUS_REG 0x0280
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#define LAPIC_IPI_DEST_REG 0x0310
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#define LAPIC_IPI_ICR_REG 0x0300
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struct acpi_rsdp_10 {
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char r_sig[8];
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uint8_t r_chksum;
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char r_oem[6];
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uint8_t r_revision;
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uint32_t r_rsdt_ptr;
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} __packed;
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struct acpi_rsdp_20 {
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struct acpi_rsdp_10 r_base;
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uint32_t r_length;
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uint64_t r_xsdt_ptr;
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uint8_t r_chksum_ext;
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uint8_t r_reserved[3];
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} __packed;
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struct acpi_rsdp {
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union {
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struct acpi_rsdp_10 rsdp_10;
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struct acpi_rsdp_20 rsdp_20;
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};
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} __packed;
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struct acpi_sdt {
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char s_sig[4];
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uint32_t s_length;
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uint8_t s_revision;
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uint8_t s_chksum;
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char s_oem[6];
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char s_oem_table[8];
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uint32_t s_oem_revision;
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uint32_t s_creator;
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uint32_t s_creator_revision;
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} __packed;
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struct acpi_rsdt {
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struct acpi_sdt r_header;
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uint32_t r_tables[1];
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} __packed;
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struct acpi_xsdt {
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struct acpi_sdt x_header;
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uint64_t x_tables[1];
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} __packed;
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struct acpi_madt {
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struct acpi_sdt m_base;
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uint32_t m_lapic_ptr;
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uint32_t m_flags;
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} __packed;
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struct acpi_madt_record {
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uint8_t r_type;
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uint8_t r_length;
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} __packed;
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struct acpi_madt_ioapic {
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uint8_t io_apic_id;
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uint8_t io_reserved;
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uint32_t io_address;
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uint32_t io_intbase;
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} __packed;
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struct acpi_madt_irqsrc_override {
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uint8_t irq_bus;
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/* the irq vector as delivered from the APIC to the CPU */
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uint8_t irq_destvec;
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/* the irq vector as delivered from the hardware to the APIC */
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uint32_t irq_srcvec;
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uint16_t irq_flags;
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} __packed;
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struct lapic_record {
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uint8_t l_cpu_id;
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uint8_t l_apic_id;
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uint32_t l_flags;
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} __packed;
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struct lapic_override_record {
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uint16_t l_reserved;
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uint64_t l_lapic_ptr;
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} __packed;
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extern kern_status_t acpi_init(void);
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extern kern_status_t acpi_scan_cpu_topology(void);
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extern kern_status_t ap_apic_init(void);
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extern kern_status_t apic_init(void);
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extern kern_status_t smp_init(void);
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extern struct acpi_sdt *acpi_find_sdt(uint32_t sig);
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extern void irq_ack(unsigned int vec);
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#ifdef __cplusplus
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}
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#endif
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#endif
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