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MFC r270299 (dumbbell): vt_vga: When clearing video memory, don't read from it
authoremaste <emaste@FreeBSD.org>
Thu, 4 Sep 2014 19:22:01 +0000 (19:22 +0000)
committeremaste <emaste@FreeBSD.org>
Thu, 4 Sep 2014 19:22:01 +0000 (19:22 +0000)
commitc3376ddfe107df438db8baff987ae94bb744f6ba
tree28bfe9608e7f2e28d8f9d4af9514fb9f6d8019c9tree | snapshot
parentf4cd1af86e2411da3b4c566d5b9325e7e5f1548dcommit | diff
MFC r270299 (dumbbell): vt_vga: When clearing video memory, don't read from it

  The goal is to clear the video memory, in case an application drew to
  it. So the content shouldn't be loaded in the latches, it can't be
  trusted anyway.

  This improves a bit the window switch speed.

Sponsored by: The FreeBSD Foundation
sys/dev/vt/hw/vga/vt_vga.c diff | blob | history
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