Struct Clint

pub struct Clint {
    base_addr: usize,
    max_cpus: CpuId,
}

RISC-V CLINT Implementation

Fields

base_addr: usize

Base address of the CLINT

max_cpus: CpuId

Maximum number of CPUs this CLINT supports

Implementations

impl Clint

pub fn new(base_addr: usize, max_cpus: CpuId) -> Self

Create a new CLINT instance

Arguments

• base_addr - Physical base address of the CLINT
• max_cpus - Maximum number of CPUs supported

The base address is used to calculate all register addresses using relative offsets defined in the CLINT specification.

fn msip_addr(&self, cpu_id: CpuId) -> usize

Get the address of the software interrupt pending register for a CPU

fn mtimecmp_addr(&self, cpu_id: CpuId) -> usize

Get the address of the timer compare register for a CPU

fn mtime_addr(&self) -> usize

Get the address of the timer value register

fn validate_cpu_id(&self, cpu_id: CpuId) -> InterruptResult<()>

Validate CPU ID

Trait Implementations

impl LocalInterruptController for Clint

fn init(&mut self, cpu_id: CpuId) -> InterruptResult<()>

Initialize the CLINT for a specific CPU

fn enable_interrupt( &mut self, cpu_id: CpuId, interrupt_type: LocalInterruptType, ) -> InterruptResult<()>

Enable a specific local interrupt type for a CPU

fn disable_interrupt( &mut self, cpu_id: CpuId, interrupt_type: LocalInterruptType, ) -> InterruptResult<()>

Disable a specific local interrupt type for a CPU

fn is_pending(&self, cpu_id: CpuId, interrupt_type: LocalInterruptType) -> bool

Check if a specific local interrupt type is pending for a CPU

fn clear_interrupt( &mut self, cpu_id: CpuId, interrupt_type: LocalInterruptType, ) -> InterruptResult<()>

Clear a pending local interrupt for a CPU

fn send_software_interrupt(&mut self, target_cpu: CpuId) -> InterruptResult<()>

Send a software interrupt to a specific CPU

fn clear_software_interrupt(&mut self, cpu_id: CpuId) -> InterruptResult<()>

Clear a software interrupt for a specific CPU

fn set_timer(&mut self, cpu_id: CpuId, time: u64) -> InterruptResult<()>

Set timer interrupt for a specific CPU

fn get_time(&self) -> u64

Get current timer value

impl Send for Clint

impl Sync for Clint