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author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-04-02 08:17:13 -0400 |
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committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-04-02 08:17:13 -0400 |
commit | 5add703f6acad1c63f8a532b6de56e50d548e904 (patch) | |
tree | be39a82716119cd8b7cf7e2734baf8cd9a80ceb7 /rust/kernel/time.rs | |
parent | 71cdfa8cad300caa7afcbba09776bbc8dcfa9e39 (diff) | |
parent | 39cd87c4eb2b893354f3b850f916353f2658ae6f (diff) |
Merge drm/drm-next into drm-intel-next
Catching up on 6.9-rc2
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'rust/kernel/time.rs')
-rw-r--r-- | rust/kernel/time.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/rust/kernel/time.rs b/rust/kernel/time.rs new file mode 100644 index 000000000000..25a896eed468 --- /dev/null +++ b/rust/kernel/time.rs @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 + +//! Time related primitives. +//! +//! This module contains the kernel APIs related to time and timers that +//! have been ported or wrapped for usage by Rust code in the kernel. + +/// The time unit of Linux kernel. One jiffy equals (1/HZ) second. +pub type Jiffies = core::ffi::c_ulong; + +/// The millisecond time unit. +pub type Msecs = core::ffi::c_uint; + +/// Converts milliseconds to jiffies. +#[inline] +pub fn msecs_to_jiffies(msecs: Msecs) -> Jiffies { + // SAFETY: The `__msecs_to_jiffies` function is always safe to call no + // matter what the argument is. + unsafe { bindings::__msecs_to_jiffies(msecs) } +} |