arch/loongarch/include/asm/cpufeature.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * CPU feature definitions for module loading, used by
   4  * module_cpu_feature_match(), see uapi/asm/hwcap.h for LoongArch CPU features.
   5  *
   6  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
   7  */
   8
   9 #ifndef __ASM_CPUFEATURE_H
  10 #define __ASM_CPUFEATURE_H
  11
  12 #include <uapi/asm/hwcap.h>
  13 #include <asm/elf.h>
  14
  15 #define MAX_CPU_FEATURES (8 * sizeof(elf_hwcap))
  16
  17 #define cpu_feature(x)          ilog2(HWCAP_ ## x)
  18
  19 static inline bool cpu_have_feature(unsigned int num)
  20 {
  21         return elf_hwcap & (1UL << num);
  22 }
  23
  24 #endif /* __ASM_CPUFEATURE_H */