diff options
Diffstat (limited to 'arch/s390/include/asm/nospec-branch.h')
| -rw-r--r-- | arch/s390/include/asm/nospec-branch.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/s390/include/asm/nospec-branch.h b/arch/s390/include/asm/nospec-branch.h index b9c1f3cae842..81c4813cff18 100644 --- a/arch/s390/include/asm/nospec-branch.h +++ b/arch/s390/include/asm/nospec-branch.h @@ -2,11 +2,20 @@ #ifndef _ASM_S390_EXPOLINE_H #define _ASM_S390_EXPOLINE_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/types.h> +#include <asm/facility.h> extern int nospec_disable; +extern int nobp; + +static inline bool nobp_enabled(void) +{ + if (__is_defined(__DECOMPRESSOR)) + return false; + return nobp && test_facility(82); +} void nospec_init_branches(void); void nospec_auto_detect(void); @@ -17,8 +26,6 @@ static inline bool nospec_uses_trampoline(void) return __is_defined(CC_USING_EXPOLINE) && !nospec_disable; } -#ifdef CONFIG_EXPOLINE_EXTERN - void __s390_indirect_jump_r1(void); void __s390_indirect_jump_r2(void); void __s390_indirect_jump_r3(void); @@ -35,8 +42,6 @@ void __s390_indirect_jump_r13(void); void __s390_indirect_jump_r14(void); void __s390_indirect_jump_r15(void); -#endif - -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* _ASM_S390_EXPOLINE_H */ |