Export asm! macro where necessary

It has been removed from the prelude during stabilization.
See rust-lang/rust#87228

Author: Demindiro

boot/amd64/src/cpuid.rs

@@ -1,3 +1,5 @@
+use core::arch::asm;
+
 pub struct Features {
 	max_basic_eax: u32,
 	max_extended_eax: u32,

boot/amd64/src/gdt.rs

@@ -1,3 +1,4 @@
+use core::arch::asm;
 use core::mem;
 
 #[repr(C)]

boot/amd64/src/main.rs

@@ -1,6 +1,6 @@
 #![no_main]
 #![no_std]
-#![feature(asm, asm_const)]
+#![feature(asm_const)]
 #![feature(maybe_uninit_uninit_array, maybe_uninit_slice)]
 
 mod cpuid;
@@ -13,6 +13,7 @@ mod multiboot2;
 mod paging;
 mod vga;
 
+use core::arch::asm;
 use core::mem::MaybeUninit;
 use core::panic::PanicInfo;
 use core::slice;

boot/amd64/src/msr.rs

@@ -1,3 +1,5 @@
+use core::arch::asm;
+
 /// # Safety
 ///
 /// MSRs must be supported.

kernel/src/arch/amd64/asm.rs

@@ -1,4 +1,6 @@
 pub mod io {
+	use core::arch::asm;
+
 	pub unsafe fn inb(address: u16) -> u8 {
 		let out: u8;
 		asm!("in al, dx", out("al") out, in("dx") address);

kernel/src/arch/amd64/gdt.rs

@@ -1,4 +1,5 @@
 use super::tss::TSS;
+use core::arch::asm;
 use core::marker::PhantomData;
 use core::mem;
 use core::pin::Pin;

kernel/src/arch/amd64/idt.rs

@@ -1,3 +1,4 @@
+use core::arch::asm;
 use core::mem;
 
 #[macro_export]

kernel/src/arch/amd64/mod.rs

@@ -9,11 +9,11 @@ mod tss;
 pub mod r#virtual;
 
 use crate::{driver::apic, power, scheduler, time::Monotonic};
+use core::arch::asm;
+use core::mem::MaybeUninit;
 pub use idt::{Handler, IDTEntry};
 pub use syscall::{current_process, current_thread, current_thread_weak, set_current_thread};
 
-use core::mem::MaybeUninit;
-
 static mut TSS: tss::TSS = tss::TSS::new();
 static mut TSS_STACK: [usize; 512] = [0; 512];
 

kernel/src/arch/amd64/msr.rs

@@ -1,3 +1,5 @@
+use core::arch::asm;
+
 pub const IA32_APIC_BASE_MSR: u32 = 0x1b;
 #[allow(dead_code)]
 pub const IA32_APIC_BASE_MSR_BSP: u64 = 0x100;

kernel/src/arch/amd64/syscall.rs

@@ -6,6 +6,7 @@ use alloc::{
 	boxed::Box,
 	sync::{Arc, Weak},
 };
+use core::arch::asm;
 use core::ptr::{self, NonNull};
 
 pub unsafe fn init() {