1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/include/asm/simd.h b/arch/arm/include/asm/simd.h
new file mode 100644
index 000000000000..8549fa8b7253
--- /dev/null
+++ b/arch/arm/include/asm/simd.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SIMD_H
+#define _ASM_SIMD_H
+
+#include <linux/cleanup.h>
+#include <linux/compiler_attributes.h>
+#include <linux/preempt.h>
+#include <linux/types.h>
+
+#include <asm/neon.h>
+
+static __must_check inline bool may_use_simd(void)
+{
+	return IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !in_hardirq()
+	       && !irqs_disabled();
+}
+
+DEFINE_LOCK_GUARD_0(ksimd, kernel_neon_begin(), kernel_neon_end())
+
+#define scoped_ksimd()	scoped_guard(ksimd)
+
+#endif	/* _ASM_SIMD_H */