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/*
* CPU feature definitions for module loading, used by
* module_cpu_feature_match(), see asm/cputable.h for powerpc CPU features.
*
* Copyright 2016 Alastair D'Silva, IBM Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef __ASM_POWERPC_CPUFEATURE_H
#define __ASM_POWERPC_CPUFEATURE_H
#include <asm/cputable.h>
/* Keep these in step with powerpc/include/asm/cputable.h */
#define MAX_CPU_FEATURES (2 * 32)
/*
* Currently we don't have a need for any of the feature bits defined in
* cpu_user_features. When we do, they should be defined such as:
*
* #define PPC_MODULE_FEATURE_32 (ilog2(PPC_FEATURE_32))
*/
#define PPC_MODULE_FEATURE_VEC_CRYPTO (32 + ilog2(PPC_FEATURE2_VEC_CRYPTO))
#define cpu_feature(x) (x)
static inline bool cpu_have_feature(unsigned int num)
{
if (num < 32)
return !!(cur_cpu_spec->cpu_user_features & 1UL << num);
else
return !!(cur_cpu_spec->cpu_user_features2 & 1UL << (num - 32));
}
#endif /* __ASM_POWERPC_CPUFEATURE_H */
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