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36 lines
998 B
36 lines
998 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* CPU feature definitions for module loading, used by |
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* module_cpu_feature_match(), see asm/cputable.h for powerpc CPU features. |
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* |
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* Copyright 2016 Alastair D'Silva, IBM Corporation. |
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*/ |
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#ifndef __ASM_POWERPC_CPUFEATURE_H |
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#define __ASM_POWERPC_CPUFEATURE_H |
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#include <asm/cputable.h> |
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/* Keep these in step with powerpc/include/asm/cputable.h */ |
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#define MAX_CPU_FEATURES (2 * 32) |
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/* |
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* Currently we don't have a need for any of the feature bits defined in |
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* cpu_user_features. When we do, they should be defined such as: |
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* |
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* #define PPC_MODULE_FEATURE_32 (ilog2(PPC_FEATURE_32)) |
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*/ |
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#define PPC_MODULE_FEATURE_VEC_CRYPTO (32 + ilog2(PPC_FEATURE2_VEC_CRYPTO)) |
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#define cpu_feature(x) (x) |
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static inline bool cpu_have_feature(unsigned int num) |
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{ |
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if (num < 32) |
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return !!(cur_cpu_spec->cpu_user_features & 1UL << num); |
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else |
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return !!(cur_cpu_spec->cpu_user_features2 & 1UL << (num - 32)); |
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} |
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#endif /* __ASM_POWERPC_CPUFEATURE_H */
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