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authorwdk <wdk@NetBSD.org>2001-12-15 11:33:13 +0000
committerwdk <wdk@NetBSD.org>2001-12-15 11:33:13 +0000
commit505a7027b69a885e393a3a79f75944440db9e122 (patch)
tree3a26bab24e26473064e9bedbf1f3d924c673eb71 /sys/dev/raidframe/raidframeio.h
parentc49454c89016c33be379b18dd47566f2a82a985a (diff)
Revert back to invalidating cache during BUS_DMASYNC_POSTREAD instead of
during BUS_DMASYNC_PREREAD. Fixes problem where SCSI bus probe didn't read meaningful identity data. Technically there should be no difference between invalidating before or after the DMA, but for reasons known only to the R3000 this fixes the problem. Some thought needs to be given to whether there is a performace difference between these two cases.
Diffstat (limited to 'sys/dev/raidframe/raidframeio.h')
0 files changed, 0 insertions, 0 deletions