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Remove Arm barriers for pre-armv6 CPUs

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Remove the macros that define the Arm barriers on Armv5 and earlier. We
don't support these CPUs.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33807
This commit is contained in:
Andrew Turner 2022-01-10 15:25:18 +00:00
parent ac795a774c
commit e7961ccd9f
1 changed files with 0 additions and 5 deletions
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5
sys/arm/include/asm.h
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@ -207,11 +207,6 @@
#define DSB mcr CP15_CP15DSB
#define DMB mcr CP15_CP15DMB
#define WFI mcr CP15_CP15WFI
#else
#define ISB mcr CP15_CP15ISB
#define DSB mcr CP15_CP15DSB /* DSB and DMB are the */
#define DMB mcr CP15_CP15DSB /* same prior to v6.*/
/* No form of WFI available on v4, define nothing to get an error on use. */
#endif
#endif /* !_MACHINE_ASM_H_ */