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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/powerpc/include/asm/cpufeature.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/include/asm/cpufeature.h')
-rw-r--r-- | arch/powerpc/include/asm/cpufeature.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cpufeature.h b/arch/powerpc/include/asm/cpufeature.h new file mode 100644 index 000000000..f6f790a90 --- /dev/null +++ b/arch/powerpc/include/asm/cpufeature.h @@ -0,0 +1,36 @@ +/* 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 */ |