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authorRodrigo Vivi <rodrigo.vivi@intel.com>2024-04-02 08:17:13 -0400
committerRodrigo Vivi <rodrigo.vivi@intel.com>2024-04-02 08:17:13 -0400
commit5add703f6acad1c63f8a532b6de56e50d548e904 (patch)
treebe39a82716119cd8b7cf7e2734baf8cd9a80ceb7 /rust/kernel/time.rs
parent71cdfa8cad300caa7afcbba09776bbc8dcfa9e39 (diff)
parent39cd87c4eb2b893354f3b850f916353f2658ae6f (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')
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1 files changed, 20 insertions, 0 deletions
diff --git a/rust/kernel/time.rs b/rust/kernel/time.rs
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+// 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) }
+}