1 /* 2 * CPU feature definitions for module loading, used by 3 * module_cpu_feature_match(), see asm/cputable.h for powerpc CPU features. 4 * 5 * Copyright 2016 Alastair D'Silva, IBM Corporation. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 10 * 2 of the License, or (at your option) any later version. 11 */ 12 13 #ifndef __ASM_POWERPC_CPUFEATURE_H 14 #define __ASM_POWERPC_CPUFEATURE_H 15 16 #include <asm/cputable.h> 17 18 /* Keep these in step with powerpc/include/asm/cputable.h */ 19 #define MAX_CPU_FEATURES (2 * 32) 20 21 /* 22 * Currently we don't have a need for any of the feature bits defined in 23 * cpu_user_features. When we do, they should be defined such as: 24 * 25 * #define PPC_MODULE_FEATURE_32 (ilog2(PPC_FEATURE_32)) 26 */ 27 28 #define PPC_MODULE_FEATURE_VEC_CRYPTO (32 + ilog2(PPC_FEATURE2_VEC_CRYPTO)) 29 30 #define cpu_feature(x) (x) 31 32 static inline bool cpu_have_feature(unsigned int num) 33 { 34 if (num < 32) 35 return !!(cur_cpu_spec->cpu_user_features & 1UL << num); 36 else 37 return !!(cur_cpu_spec->cpu_user_features2 & 1UL << (num - 32)); 38 } 39 40 #endif /* __ASM_POWERPC_CPUFEATURE_H */ 41