Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[Arm64] use isb instruction instead of yield in spin loops #84725

Merged
merged 1 commit into from
May 2, 2021
Merged

[Arm64] use isb instruction instead of yield in spin loops #84725

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion library/core/src/hint.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,7 @@ pub fn spin_loop() {
#[cfg(target_arch = "aarch64")]
{
// SAFETY: the `cfg` attr ensures that we only execute this on aarch64 targets.
unsafe { crate::arch::aarch64::__yield() };
unsafe { crate::arch::aarch64::__isb(crate::arch::aarch64::SY) };
}
#[cfg(target_arch = "arm")]
{
Expand Down