Red Bear OS
82feefbaee
From release 0.1.0 pre-patched archive. This includes all Red Bear modifications previously maintained as patches in local/patches/kernel/.
24 lines
653 B
Rust
24 lines
653 B
Rust
use crate::{
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cpu_set::LogicalCpuId,
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memory::{RmmA, RmmArch},
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percpu::PercpuBlock,
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};
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impl PercpuBlock {
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pub fn current() -> &'static Self {
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unsafe { &*(crate::arch::device::cpu::registers::control_regs::tpidr_el1() as *const Self) }
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}
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}
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#[cold]
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pub unsafe fn init(cpu_id: LogicalCpuId) {
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unsafe {
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let frame = crate::memory::allocate_frame().expect("failed to allocate percpu memory");
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let virt = RmmA::phys_to_virt(frame.base()).data() as *mut PercpuBlock;
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virt.write(PercpuBlock::init(cpu_id));
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crate::arch::device::cpu::registers::control_regs::tpidr_el1_write(virt as u64);
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}
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}
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