riscv: Add critical section.

1 files changed, 0 insertions, 21 deletions

diff --git a/cortex_m/critical_section.h b/cortex_m/critical_section.h
deleted file mode 100644
index 6b611a8..0000000
--- a/cortex_m/critical_section.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#pragma once
-
-#include <cstdint>
-
-struct critical_section {
-    uint32_t primask;
-
-    critical_section() {
-        asm volatile("mrs %0, primask" : "=r" (primask));
-
-        asm volatile("cpsid i");
-
-        asm volatile("dmb");
-    }
-
-    ~critical_section() {
-        asm volatile("dmb");
-
-        asm volatile("msr primask, %0" :: "r" (primask));
-    }
-};