GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Cadence Design Systems Inc.
+ */
+
+#ifndef _XTENSA_SYSTEM_H
+#define _XTENSA_SYSTEM_H
+
+#include <asm/arch/core.h>
+
+#if XCHAL_HAVE_INTERRUPTS
+#define local_irq_save(flags) \
+	__asm__ __volatile__ ("rsil %0, %1" \
+			      : "=a"(flags) \
+			      : "I"(XCHAL_EXCM_LEVEL) \
+			      : "memory")
+#define local_irq_restore(flags) \
+	__asm__ __volatile__ ("wsr %0, ps\n\t" \
+			      "rsync" \
+			      :: "a"(flags) : "memory")
+#else
+#define local_irq_save(flags) ((void)(flags))
+#define local_irq_restore(flags) ((void)(flags))
+#endif
+
+#endif