summaryrefslogtreecommitdiffstats
path: root/arch/loongarch/include/asm/cpufeature.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/loongarch/include/asm/cpufeature.h')
-rw-r--r--arch/loongarch/include/asm/cpufeature.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/cpufeature.h b/arch/loongarch/include/asm/cpufeature.h
new file mode 100644
index 000000000..4da22a8e6
--- /dev/null
+++ b/arch/loongarch/include/asm/cpufeature.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * CPU feature definitions for module loading, used by
+ * module_cpu_feature_match(), see uapi/asm/hwcap.h for LoongArch CPU features.
+ *
+ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
+ */
+
+#ifndef __ASM_CPUFEATURE_H
+#define __ASM_CPUFEATURE_H
+
+#include <uapi/asm/hwcap.h>
+#include <asm/elf.h>
+
+#define MAX_CPU_FEATURES (8 * sizeof(elf_hwcap))
+
+#define cpu_feature(x) ilog2(HWCAP_ ## x)
+
+static inline bool cpu_have_feature(unsigned int num)
+{
+ return elf_hwcap & (1UL << num);
+}
+
+#endif /* __ASM_CPUFEATURE_H */