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(parent: e9497f9) | patch
ntb: Do not attempt to set write-combining on MWs
authorConrad Meyer <cem@FreeBSD.org>
Thu, 29 Oct 2015 04:16:28 +0000 (04:16 +0000)
committerConrad Meyer <cem@FreeBSD.org>
Thu, 29 Oct 2015 04:16:28 +0000 (04:16 +0000)
commit79c1a0199fef91b73be95c7fea26dc2a17d8b38a
treedc4661d19af2fe506db6944d6067c2e2fb276419tree | snapshot
parente9497f9bbd2ac5e16b9d913c89ff2d2a08f52cd7commit | diff
ntb: Do not attempt to set write-combining on MWs

AMD64 pmap assumes ranges will be in the DMAP, which isn't necessarily
true for NTB memory windows (especially 64-bit BARs).

Suggested by: pmap_change_attr_locked -> kassert_panic
Sponsored by: EMC / Isilon Storage Division
sys/dev/ntb/ntb_hw/ntb_hw.c diff | blob | history
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