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When synchronising the instruction and data caches we only need to clean

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the data cache to the point of unification. This is the point where the
two caches are unified to a single unified cache so cleaning past here
is just extra unneeded work.

This was noticed when investigating r305545.

Reported by:	bz
Obtained from:	ABT Systems Ltd
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
andrew 2016-09-07 16:46:54 +00:00
parent 4bde709fd3
commit a66a58c963
1 changed files with 1 additions and 1 deletions
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2
sys/arm64/arm64/cpufunc_asm.S
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@ -151,5 +151,5 @@ END(arm64_idcache_wbinv_range)
* void arm64_icache_sync_range(vm_offset_t, vm_size_t)
*/
ENTRY(arm64_icache_sync_range)
cache_handle_range dcop = cvac, ic = 1, icop = ivau
cache_handle_range dcop = cvau, ic = 1, icop = ivau
END(arm64_icache_sync_range)