mirror of
https://github.com/torvalds/linux.git
synced 2024-12-15 07:33:56 +00:00
511ad531af
Remove s390 part of all HWCAP defines, just to make them shorter and easier to handle. The namespace is anyway per architecture. This is similar to what arm64 has. Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
31 lines
958 B
C
31 lines
958 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Module interface for CPU features
|
|
*
|
|
* Copyright IBM Corp. 2015
|
|
* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
|
|
*/
|
|
|
|
#ifndef __ASM_S390_CPUFEATURE_H
|
|
#define __ASM_S390_CPUFEATURE_H
|
|
|
|
#include <asm/elf.h>
|
|
|
|
/* 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_ ## feat)
|
|
|
|
int cpu_have_feature(unsigned int nr);
|
|
|
|
#endif /* __ASM_S390_CPUFEATURE_H */
|