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Flush both reads *and* writes to registers.

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Obtained from:	Miod Vallat in OpenBSD
MFC after:	1 week
This commit is contained in:
Matt Jacob 2011-03-05 00:59:34 +00:00
parent 96e1934a43
commit 1d05c65118
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=219282
1 changed files with 1 additions and 1 deletions
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2
sys/dev/isp/isp_freebsd.h
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@ -369,7 +369,7 @@ case SYNC_RESULT: \
case SYNC_REG: \
bus_space_barrier(isp->isp_osinfo.bus_tag, \
isp->isp_osinfo.bus_handle, offset, size, \
BUS_SPACE_BARRIER_READ); \
BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); \
break; \
default: \
break; \