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Generalize single instruction CPU local operations by cpu_local_cell

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This commit is contained in:
Zhang Junyang
2024-08-02 12:28:03 +00:00
committed by Tate, Hongliang Tian
parent d04111079c
commit fe68b4b510
16 changed files with 1100 additions and 499 deletions
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6
ostd/src/cpu/mod.rs
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@ -2,7 +2,7 @@
//! CPU-related definitions.
pub mod cpu_local;
pub mod local;
cfg_if::cfg_if! {
if #[cfg(target_arch = "x86_64")]{
@ -18,7 +18,7 @@ use bitvec::{
slice::IterOnes,
};
use crate::{arch::boot::smp::get_num_processors, cpu};
use crate::arch::{self, boot::smp::get_num_processors};
/// The number of CPUs. Zero means uninitialized.
static NUM_CPUS: AtomicU32 = AtomicU32::new(0);
@ -47,7 +47,7 @@ pub fn num_cpus() -> u32 {
pub fn this_cpu() -> u32 {
// SAFETY: the cpu ID is stored at the beginning of the cpu local area, provided
// by the linker script.
unsafe { (cpu::local::get_base() as usize as *mut u32).read() }
unsafe { (arch::cpu::local::get_base() as usize as *mut u32).read() }
}
/// A subset of all CPUs in the system.