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131 lines
3.0 KiB
131 lines
3.0 KiB
#[cfg(feature = "board_u540")]
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#[path = "board/u540/mod.rs"]
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mod board;
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#[cfg(feature = "board_rocket_chip")]
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#[path = "board/rocket_chip/mod.rs"]
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mod board;
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#[cfg(not(any(feature = "board_u540", feature = "board_rocket_chip")))]
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#[path = "board/virt/mod.rs"]
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mod board;
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pub mod compiler_rt;
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pub mod consts;
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pub mod cpu;
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pub mod interrupt;
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pub mod io;
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pub mod memory;
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pub mod paging;
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pub mod rand;
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mod sbi;
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pub mod syscall;
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pub mod timer;
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use crate::memory::phys_to_virt;
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use core::sync::atomic::{AtomicBool, Ordering};
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use log::*;
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#[no_mangle]
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pub extern "C" fn rust_main(hartid: usize, device_tree_paddr: usize) -> ! {
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let mut device_tree_vaddr = phys_to_virt(device_tree_paddr);
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unsafe {
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cpu::set_cpu_id(hartid);
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}
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#[cfg(feature = "board_rocket_chip")]
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{
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extern "C" {
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fn _dtb_start();
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fn _dtb_end();
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}
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device_tree_vaddr = _dtb_start as usize;
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}
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if hartid != BOOT_HART_ID {
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while !AP_CAN_INIT.load(Ordering::Relaxed) {}
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println!(
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"Hello RISCV! in hart {}, device tree @ {:#x}",
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hartid, device_tree_vaddr
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);
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others_main();
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//other_main -> !
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}
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unsafe {
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memory::clear_bss();
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}
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println!(
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"Hello RISCV! in hart {}, device tree @ {:#x}",
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hartid, device_tree_vaddr
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);
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crate::logging::init();
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interrupt::init();
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memory::init(device_tree_vaddr);
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timer::init();
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// FIXME: init driver on u540
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#[cfg(not(any(feature = "board_u540")))]
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crate::drivers::init(device_tree_vaddr);
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#[cfg(not(feature = "board_k210"))]
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unsafe {
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board::enable_serial_interrupt();
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board::init_external_interrupt();
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}
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crate::process::init();
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AP_CAN_INIT.store(true, Ordering::Relaxed);
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crate::kmain();
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}
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fn others_main() -> ! {
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interrupt::init();
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memory::init_other();
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timer::init();
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crate::kmain();
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}
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static AP_CAN_INIT: AtomicBool = AtomicBool::new(false);
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#[cfg(not(feature = "board_u540"))]
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const BOOT_HART_ID: usize = 0;
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#[cfg(feature = "board_u540")]
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const BOOT_HART_ID: usize = 1;
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/// Constant & Macro for `trap.asm`
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#[cfg(target_arch = "riscv32")]
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global_asm!(
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r"
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.equ XLENB, 4
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.equ XLENb, 32
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.macro LOAD a1, a2
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lw \a1, \a2*XLENB(sp)
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.endm
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.macro STORE a1, a2
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sw \a1, \a2*XLENB(sp)
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.endm
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"
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);
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#[cfg(target_arch = "riscv64")]
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global_asm!(
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r"
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.equ XLENB, 8
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.equ XLENb, 64
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.macro LOAD a1, a2
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ld \a1, \a2*XLENB(sp)
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.endm
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.macro STORE a1, a2
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sd \a1, \a2*XLENB(sp)
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.endm
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"
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);
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#[cfg(target_arch = "riscv32")]
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global_asm!(include_str!("boot/entry32.asm"));
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#[cfg(all(target_arch = "riscv64", not(feature = "board_k210")))]
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global_asm!(include_str!("boot/entry64.asm"));
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#[cfg(feature = "board_k210")]
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global_asm!(include_str!("boot/entry_k210.asm"));
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global_asm!(include_str!("boot/trap.asm"));
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#[cfg(feature = "board_rocket_chip")]
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global_asm!(include_str!("boot/dtb.gen.s"));
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