From d8a064128a8a06b90ff4c7b87c193518d9572641 Mon Sep 17 00:00:00 2001
From: Gou Ngai <94795048+AlbertSanoe@users.noreply.github.com>
Date: Mon, 16 Jan 2023 19:58:50 +0800
Subject: [PATCH] =?UTF-8?q?Raw=20spin=20lock=20=E5=A2=9E=E5=8A=A0lock=5Fir?=
 =?UTF-8?q?qsave=E3=80=81unlock=5Firqrestore(#151)?=
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Raw spin lock 增加lock_irqsave、unlock_irqrestore
---
 kernel/src/libs/spinlock.rs | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/kernel/src/libs/spinlock.rs b/kernel/src/libs/spinlock.rs
index 5eac2af1..f3e87e98 100644
--- a/kernel/src/libs/spinlock.rs
+++ b/kernel/src/libs/spinlock.rs
@@ -127,10 +127,19 @@ impl RawSpinlock {
         self.0.store(value, Ordering::SeqCst);
     }
 
-    // todo: spin_lock_irqsave
-    // todo: spin_unlock_irqrestore
-}
+    /// @brief 保存中断状态到flags中，关闭中断，并对自旋锁加锁
+    pub fn lock_irqsave(&self, flags: &mut u64) {
+        local_irq_save(flags);
+        self.lock();
+    }
 
+    /// @brief 恢复rflags以及中断状态并解锁自旋锁
+    pub fn unlock_irqrestore(&self, flags: &u64){
+        self.unlock();
+        local_irq_restore(flags);
+    }
+
+}
 /// 实现了守卫的SpinLock, 能够支持内部可变性
 ///
 #[derive(Debug)]
@@ -171,7 +180,7 @@ impl<T> SpinLock<T> {
 /// 实现Deref trait，支持通过获取SpinLockGuard来获取临界区数据的不可变引用
 impl<T> Deref for SpinLockGuard<'_, T> {
     type Target = T;
-    
+
     fn deref(&self) -> &Self::Target {
         return unsafe { &*self.lock.data.get() };
     }