diff options
Diffstat (limited to 'arch/s390/include/asm/cpufeature.h')
| -rw-r--r-- | arch/s390/include/asm/cpufeature.h | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/arch/s390/include/asm/cpufeature.h b/arch/s390/include/asm/cpufeature.h index 1d007c6ede95..931204613753 100644 --- a/arch/s390/include/asm/cpufeature.h +++ b/arch/s390/include/asm/cpufeature.h @@ -2,28 +2,21 @@ /* * Module interface for CPU features * - * Copyright IBM Corp. 2015 + * Copyright IBM Corp. 2015, 2022 * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> */ #ifndef __ASM_S390_CPUFEATURE_H #define __ASM_S390_CPUFEATURE_H -#include <asm/elf.h> +enum { + S390_CPU_FEATURE_MSA, + S390_CPU_FEATURE_VXRS, + S390_CPU_FEATURE_UV, + MAX_CPU_FEATURES +}; -/* Hardware features on Linux on z Systems are indicated by facility bits that - * are mapped to the so-called machine flags. Particular machine flags are - * then used to define ELF hardware capabilities; most notably hardware flags - * that are essential for user space / glibc. - * - * Restrict the set of exposed CPU features to ELF hardware capabilities for - * now. Additional machine flags can be indicated by values larger than - * MAX_ELF_HWCAP_FEATURES. - */ -#define MAX_ELF_HWCAP_FEATURES (8 * sizeof(elf_hwcap)) -#define MAX_CPU_FEATURES MAX_ELF_HWCAP_FEATURES - -#define cpu_feature(feat) ilog2(HWCAP_S390_ ## feat) +#define cpu_feature(feature) (feature) int cpu_have_feature(unsigned int nr); |