| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * 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. |
| */ |
| |
| #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 */ |
