bjorn3
98 lines
2.1 KiB
Rust
98 lines
2.1 KiB
Rust
use core::cell::Cell;
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pub mod cpu;
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#[cfg(feature = "acpi")]
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pub mod hpet;
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pub mod ioapic;
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pub mod local_apic;
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pub mod pic;
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pub mod pit;
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pub mod serial;
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#[cfg(feature = "system76_ec_debug")]
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pub mod system76_ec;
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#[cfg(feature = "x86_kvm_pv")]
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pub mod tsc;
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pub unsafe fn init() {
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unsafe {
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pic::init();
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local_apic::init();
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// Run here for the side effect of printing if KVM was used to avoid interleaved logs.
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tsc::get_kvm_support();
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}
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}
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pub unsafe fn init_after_acpi() {
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// this will disable the IOAPIC if needed.
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//ioapic::init(mapper);
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}
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#[cfg(feature = "acpi")]
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unsafe fn init_hpet() -> bool {
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unsafe {
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use crate::acpi::ACPI_TABLE;
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match *ACPI_TABLE.hpet.write() {
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Some(ref mut hpet) => {
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if cfg!(target_arch = "x86") {
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//TODO: fix HPET on i686
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warn!("HPET found but implemented on i686");
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return false;
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}
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hpet::init(hpet)
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}
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_ => false,
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}
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}
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}
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#[cfg(not(feature = "acpi"))]
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unsafe fn init_hpet() -> bool {
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false
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}
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pub unsafe fn init_noncore() {
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unsafe {
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debug!("Initializing system timer");
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#[cfg(feature = "x86_kvm_pv")]
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if tsc::init() {
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debug!("TSC used as system clock source");
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}
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if init_hpet() {
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debug!("HPET used as system timer");
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} else {
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pit::init();
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debug!("PIT used as system timer");
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}
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debug!("Finished initializing devices");
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}
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}
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pub unsafe fn init_ap() {
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unsafe {
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local_apic::init_ap();
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#[cfg(feature = "x86_kvm_pv")]
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tsc::init();
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}
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}
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pub struct ArchPercpuMisc {
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pub apic_id_opt: Cell<Option<local_apic::ApicId>>,
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#[cfg(feature = "x86_kvm_pv")]
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pub tsc_info: tsc::TscPercpu,
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}
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impl ArchPercpuMisc {
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pub const fn default() -> Self {
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Self {
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apic_id_opt: Cell::new(None),
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#[cfg(feature = "x86_kvm_pv")]
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tsc_info: tsc::TscPercpu::default(),
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}
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}
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}
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