41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 */
|