mirror of https://github.com/m-labs/artiq.git
28 lines
591 B
Rust
28 lines
591 B
Rust
use super::{cache, pmp};
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use riscv::register::*;
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pub unsafe fn reset() -> ! {
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asm!("j _reset_handler",
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"nop",
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options(nomem, nostack, noreturn)
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);
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}
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pub unsafe fn jump(addr: usize) -> ! {
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cache::flush_cpu_icache();
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asm!("jalr x0, 0({0})",
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"nop",
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in(reg) addr,
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options(nomem, nostack, noreturn)
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);
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}
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pub unsafe fn start_user(addr: usize) -> ! {
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pmp::enable_user_memory();
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mstatus::set_mpp(mstatus::MPP::User);
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mepc::write(addr);
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asm!("mret",
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options(nomem, nostack, noreturn)
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);
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}
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