raw_acpi/madt/
core_pic.rs

1#[derive(Copy, Clone)]
2/// ## CORE PIC Flags
3pub struct COREPICFlags(u32);
4impl COREPICFlags {
5    /// If Physical Processor ID is invalid, OSPM shall ignore this field, and OSPM shall ignore Core Programmable Interrupt Controller Structure.<br>
6    /// If Physical Processor ID is valid and if this Enabled bit is clear, this processor will be unusable on booting, and can be online during OS runtime.<br>
7    /// If Physical Processor ID is valid and if this Enabled bit is set, this processor is ready for using.
8    pub const fn enabled(&self) -> bool {
9        self.0 & 0b1 != 0
10    }
11    // JJ here, the rest of the bits are reserved; no need to implement.
12}
13
14#[derive(Copy, Clone)]
15#[repr(C, packed)]
16/// ## Core Programmable Interrupt Controller (CORE PIC) Structure
17///
18/// Each processor in Loongarch system has a Core Programmable Interrupt Controller record in the MADT, and a processor device object in the DSDT.
19pub struct CoreProgrammableInterruptController {
20    /// 17 - Core Programmable Interrupt Controller Structure
21    pub r#type: u8,
22    /// Length of the Core Programmable Interrupt Controller Structure in bytes.
23    ///
24    /// **JJ's Note: There doesn't seem to be any variable-sized fields in this struct.  The size is 15 bytes...**
25    pub length: u8,
26    /// - **0x00** - Invalid
27    /// - **0x01** - CORE PIC v1
28    ///
29    /// Other values are reserved.
30    pub version: u8,
31    /// The OS associates this CORE PIC Structure with a processor device object in the namespace
32    /// when the _UID child object of the processor device evaluates to a numeric value that matches the numeric value in this field.
33    pub acpi_processor_id: u32,
34    /// The processor core physical id.
35    ///
36    /// 0xFFFFFFFF is invalid value.
37    ///
38    /// If invalid, this processor is unusable, and OSPM shall ignore Core Interrupt Controller Structure.
39    pub phsyical_processor_id: u32,
40    /// CORE PIC flags.
41    pub flags: COREPICFlags,
42}
raw_acpi/madt/core_pic.rs

raw_acpi/madt/
core_pic.rs
