18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * CPU feature definitions for module loading, used by 48c2ecf20Sopenharmony_ci * module_cpu_feature_match(), see asm/cputable.h for powerpc CPU features. 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * Copyright 2016 Alastair D'Silva, IBM Corporation. 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#ifndef __ASM_POWERPC_CPUFEATURE_H 108c2ecf20Sopenharmony_ci#define __ASM_POWERPC_CPUFEATURE_H 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci#include <asm/cputable.h> 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci/* Keep these in step with powerpc/include/asm/cputable.h */ 158c2ecf20Sopenharmony_ci#define MAX_CPU_FEATURES (2 * 32) 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci/* 188c2ecf20Sopenharmony_ci * Currently we don't have a need for any of the feature bits defined in 198c2ecf20Sopenharmony_ci * cpu_user_features. When we do, they should be defined such as: 208c2ecf20Sopenharmony_ci * 218c2ecf20Sopenharmony_ci * #define PPC_MODULE_FEATURE_32 (ilog2(PPC_FEATURE_32)) 228c2ecf20Sopenharmony_ci */ 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci#define PPC_MODULE_FEATURE_VEC_CRYPTO (32 + ilog2(PPC_FEATURE2_VEC_CRYPTO)) 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ci#define cpu_feature(x) (x) 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_cistatic inline bool cpu_have_feature(unsigned int num) 298c2ecf20Sopenharmony_ci{ 308c2ecf20Sopenharmony_ci if (num < 32) 318c2ecf20Sopenharmony_ci return !!(cur_cpu_spec->cpu_user_features & 1UL << num); 328c2ecf20Sopenharmony_ci else 338c2ecf20Sopenharmony_ci return !!(cur_cpu_spec->cpu_user_features2 & 1UL << (num - 32)); 348c2ecf20Sopenharmony_ci} 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci#endif /* __ASM_POWERPC_CPUFEATURE_H */ 37