add doc

arceos-org · Jan 2, 2025 · 5e0340c · 5e0340c
1 parent 5f47c91
commit 5e0340c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/modules/axhal/src/arch/mod.rs b/modules/axhal/src/arch/mod.rs
@@ -16,7 +16,10 @@ cfg_if::cfg_if! {
 /// Cache operations.
 #[derive(Debug, Clone, Copy)]
 pub enum CacheOp {
+    // Write back to memory
     Clean,
+    // Invalidate cache
     Invalidate,
+    // Clean and invalidate
     CleanAndInvalidate,
 }