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05510f2b48
Add missing macros and methods that are required by
CONFIG_GENERIC_CPU_AUTOPROBE: MAX_CPU_FEATURES, cpu_have_feature(),
cpu_feature().
Also set a default elf platform as currently it is not set for most MIPS
platforms resulting in incorrectly specified modalias values in cpu
autoprobe ("cpu:type:(null):feature:...").
Export 'elf_hwcap' symbol so that it can be accessed from modules that
use module_cpu_feature_match()
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15395/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
27 lines
717 B
C
27 lines
717 B
C
/*
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* CPU feature definitions for module loading, used by
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* module_cpu_feature_match(), see uapi/asm/hwcap.h for MIPS CPU features.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef __ASM_CPUFEATURE_H
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#define __ASM_CPUFEATURE_H
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#include <uapi/asm/hwcap.h>
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#include <asm/elf.h>
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#define MAX_CPU_FEATURES (8 * sizeof(elf_hwcap))
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#define cpu_feature(x) ilog2(HWCAP_ ## x)
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static inline bool cpu_have_feature(unsigned int num)
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{
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return elf_hwcap & (1UL << num);
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}
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#endif /* __ASM_CPUFEATURE_H */
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