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// SPDX-License-Identifier: Apache-2.0 OR MIT
//
// Copyright (c) 2018-2022 by the author(s)
//
// Author(s):
// - Andre Richter <andre.o.richter@gmail.com>
// - Javier Alvarez <javier.alvarez@allthingsembedded.net>
//! OS Lock Access Register - EL1
//!
//! Used to lock or unlock the OS Lock.
//!
//! AArch64 System register `OSLAR_EL1` bits \[31:0\] are architecturally mapped to External
//! register `OSLAR_EL1[31:0]`. The OS Lock can also be locked or unlocked using `DBGOSLAR`.
use tock_registers::{
interfaces::{Readable, Writeable},
register_bitfields,
};
register_bitfields! {u64,
pub OSLAR_EL1 [
/// On writes to `OSLAR_EL1`, bit[0] is copied to the OS Lock.
/// Use `OSLSR_EL1.OSLK` to check the current status of the lock.
OSLK OFFSET(0) NUMBITS(1) [
Unlocked = 0,
Locked = 1
]
]
}
pub struct Reg;
impl Readable for Reg {
type T = u64;
type R = OSLAR_EL1::Register;
sys_coproc_read_raw!(u64, "OSLAR_EL1", "x");
}
impl Writeable for Reg {
type T = u64;
type R = OSLAR_EL1::Register;
sys_coproc_write_raw!(u64, "OSLAR_EL1", "x");
}
pub const OSLAR_EL1: Reg = Reg {};