ref: update formatting
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7d0155d8ce
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16 changed files with 419 additions and 420 deletions
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@ -7,187 +7,184 @@
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namespace acpi {
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enum class madt_entry_type : uint8_t {
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local_apic = 0,
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io_apic = 1,
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interrupt_source_override = 2,
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nmi_source = 3,
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local_apic_nmi = 4,
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local_apic_address_override = 5,
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local_apic = 0,
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io_apic = 1,
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interrupt_source_override = 2,
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nmi_source = 3,
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local_apic_nmi = 4,
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local_apic_address_override = 5,
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};
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inline constexpr const char *get_madt_entry_type_name(madt_entry_type type) {
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switch (type) {
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case madt_entry_type::local_apic:
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return "local_apic";
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case madt_entry_type::io_apic:
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return "io_apic";
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case madt_entry_type::interrupt_source_override:
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return "interrupt_source_override";
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case madt_entry_type::nmi_source:
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return "nmi_source";
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case madt_entry_type::local_apic_nmi:
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return "local_apic_nmi";
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case madt_entry_type::local_apic_address_override:
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return "local_apic_address_override";
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}
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return "unknown";
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inline constexpr const char* get_madt_entry_type_name(madt_entry_type type) {
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switch (type) {
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case madt_entry_type::local_apic:
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return "local_apic";
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case madt_entry_type::io_apic:
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return "io_apic";
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case madt_entry_type::interrupt_source_override:
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return "interrupt_source_override";
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case madt_entry_type::nmi_source:
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return "nmi_source";
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case madt_entry_type::local_apic_nmi:
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return "local_apic_nmi";
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case madt_entry_type::local_apic_address_override:
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return "local_apic_address_override";
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}
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return "unknown";
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}
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struct madt_flags_t {
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uint32_t dual_8259_present : 1;
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uint32_t reserved : 31;
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uint32_t dual_8259_present : 1;
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uint32_t reserved : 31;
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};
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static_assert(sizeof(madt_flags_t) == 4);
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struct local_apic_flags_t {
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uint32_t enabled : 1;
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uint32_t online_capable : 1;
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uint32_t reserved : 30;
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uint32_t enabled : 1;
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uint32_t online_capable : 1;
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uint32_t reserved : 30;
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};
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static_assert(sizeof(local_apic_flags_t) == 4);
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enum class inti_polarity : uint16_t {
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bus_default = 0,
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active_high = 1,
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active_low = 3,
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bus_default = 0,
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active_high = 1,
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active_low = 3,
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};
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enum class inti_trigger_mode : uint16_t {
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bus_default = 0,
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edge = 1,
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level = 3,
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bus_default = 0,
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edge = 1,
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level = 3,
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};
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struct inti_flags_t {
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inti_polarity polarity : 2;
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inti_trigger_mode trigger_mode : 2;
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uint16_t reserved : 12;
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inti_polarity polarity : 2;
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inti_trigger_mode trigger_mode : 2;
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uint16_t reserved : 12;
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};
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static_assert(sizeof(inti_flags_t) == 2);
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struct madt_t {
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sdt_header_t header;
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uint32_t local_apic_address;
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madt_flags_t flags;
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uint8_t entries[0];
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sdt_header_t header;
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uint32_t local_apic_address;
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madt_flags_t flags;
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uint8_t entries[0];
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} __attribute__((packed));
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static_assert(sizeof(madt_t) == 44);
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struct madt_entry_t {
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madt_entry_type type;
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uint8_t length;
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madt_entry_type type;
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uint8_t length;
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} __attribute__((packed));
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static_assert(sizeof(madt_entry_t) == 2);
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struct madt_local_apic_t {
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madt_entry_type type;
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uint8_t length;
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uint8_t acpi_processor_uid;
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uint8_t apic_id;
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local_apic_flags_t flags;
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madt_entry_type type;
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uint8_t length;
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uint8_t acpi_processor_uid;
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uint8_t apic_id;
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local_apic_flags_t flags;
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} __attribute__((packed));
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static_assert(sizeof(madt_local_apic_t) == 8);
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struct madt_io_apic_t {
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madt_entry_type type;
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uint8_t length;
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uint8_t io_apic_id;
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uint8_t reserved;
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uint32_t io_apic_address;
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uint32_t global_system_interrupt_base;
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madt_entry_type type;
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uint8_t length;
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uint8_t io_apic_id;
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uint8_t reserved;
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uint32_t io_apic_address;
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uint32_t global_system_interrupt_base;
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} __attribute__((packed));
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static_assert(sizeof(madt_io_apic_t) == 12);
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struct madt_interrupt_source_override_t {
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madt_entry_type type;
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uint8_t length;
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uint8_t bus; // always 0 (ISA)
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uint8_t source; // ISA IRQ number
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uint32_t global_system_interrupt;
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inti_flags_t flags;
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madt_entry_type type;
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uint8_t length;
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uint8_t bus; // always 0 (ISA)
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uint8_t source; // ISA IRQ number
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uint32_t global_system_interrupt;
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inti_flags_t flags;
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} __attribute__((packed));
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static_assert(sizeof(madt_interrupt_source_override_t) == 10);
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struct madt_nmi_source_t {
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madt_entry_type type;
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uint8_t length;
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inti_flags_t flags;
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uint32_t global_system_interrupt;
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madt_entry_type type;
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uint8_t length;
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inti_flags_t flags;
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uint32_t global_system_interrupt;
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} __attribute__((packed));
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static_assert(sizeof(madt_nmi_source_t) == 8);
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struct madt_local_apic_nmi_t {
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madt_entry_type type;
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uint8_t length;
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uint8_t acpi_processor_uid; // 0xFF: applies to all processors
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inti_flags_t flags;
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uint8_t lint; // local APIC LINT# the NMI is wired to
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madt_entry_type type;
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uint8_t length;
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uint8_t acpi_processor_uid; // 0xFF: applies to all processors
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inti_flags_t flags;
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uint8_t lint; // local APIC LINT# the NMI is wired to
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} __attribute__((packed));
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static_assert(sizeof(madt_local_apic_nmi_t) == 6);
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struct madt_local_apic_address_override_t {
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madt_entry_type type;
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uint8_t length;
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uint16_t reserved;
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uint64_t local_apic_address;
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madt_entry_type type;
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uint8_t length;
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uint16_t reserved;
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uint64_t local_apic_address;
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} __attribute__((packed));
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static_assert(sizeof(madt_local_apic_address_override_t) == 12);
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struct Madt {
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explicit Madt(paddr_t madt_physical)
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: table(madt_physical.access<madt_t>()) {}
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explicit Madt(const madt_t *madt_table) : table(madt_table) {}
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explicit Madt(paddr_t madt_physical) : table(madt_physical.access<madt_t>()) {}
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explicit Madt(const madt_t* madt_table) : table(madt_table) {}
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paddr_t local_apic_address() {
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uint64_t address = table->local_apic_address;
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for_each_entry(
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[&](const madt_local_apic_address_override_t *override_entry) {
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address = override_entry->local_apic_address;
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paddr_t local_apic_address() {
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uint64_t address = table->local_apic_address;
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for_each_entry([&](const madt_local_apic_address_override_t* override_entry) {
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address = override_entry->local_apic_address;
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});
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return paddr_t{address};
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}
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bool has_legacy_pic() { return table->flags.dual_8259_present != 0; }
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template <typename Fn> void for_each_entry(Fn &&callback) {
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auto ptr = table->entries;
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const auto end =
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reinterpret_cast<const uint8_t *>(table) + table->header.length;
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while (ptr < end) {
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auto entry = reinterpret_cast<const madt_entry_t *>(ptr);
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if (entry->length < sizeof(madt_entry_t)) {
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break;
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}
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dispatch(entry, callback);
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ptr += entry->length;
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return paddr_t{address};
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}
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bool has_legacy_pic() { return table->flags.dual_8259_present != 0; }
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template<typename Fn>
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void for_each_entry(Fn&& callback) {
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auto ptr = table->entries;
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const auto end = reinterpret_cast<const uint8_t*>(table) + table->header.length;
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while (ptr < end) {
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auto entry = reinterpret_cast<const madt_entry_t*>(ptr);
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if (entry->length < sizeof(madt_entry_t)) {
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break;
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}
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dispatch(entry, callback);
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ptr += entry->length;
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}
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}
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}
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private:
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template <typename Fn>
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static void dispatch(const madt_entry_t *entry, Fn &&fn) {
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#define MADT_DISPATCH(entry_enum, EntryType) \
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case madt_entry_type::entry_enum: \
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if constexpr (requires { fn(static_cast<const EntryType *>(nullptr)); }) \
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fn(reinterpret_cast<const EntryType *>(entry)); \
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break;
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template<typename Fn>
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static void dispatch(const madt_entry_t* entry, Fn&& fn) {
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#define MADT_DISPATCH(entry_enum, EntryType) \
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case madt_entry_type::entry_enum: \
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if constexpr (requires { fn(static_cast<const EntryType*>(nullptr)); }) \
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fn(reinterpret_cast<const EntryType*>(entry)); \
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break;
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switch (entry->type) {
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MADT_DISPATCH(local_apic, madt_local_apic_t)
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MADT_DISPATCH(io_apic, madt_io_apic_t)
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MADT_DISPATCH(interrupt_source_override, madt_interrupt_source_override_t)
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MADT_DISPATCH(nmi_source, madt_nmi_source_t)
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MADT_DISPATCH(local_apic_nmi, madt_local_apic_nmi_t)
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MADT_DISPATCH(local_apic_address_override,
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madt_local_apic_address_override_t)
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default:
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break;
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}
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switch (entry->type) {
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MADT_DISPATCH(local_apic, madt_local_apic_t)
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MADT_DISPATCH(io_apic, madt_io_apic_t)
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MADT_DISPATCH(interrupt_source_override, madt_interrupt_source_override_t)
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MADT_DISPATCH(nmi_source, madt_nmi_source_t)
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MADT_DISPATCH(local_apic_nmi, madt_local_apic_nmi_t)
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MADT_DISPATCH(local_apic_address_override, madt_local_apic_address_override_t)
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default:
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break;
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}
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#undef MADT_DISPATCH
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}
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}
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const madt_t *table;
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const madt_t* table;
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};
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} // namespace acpi
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