K 10
svn:author
V 5
ariff
K 8
svn:date
V 27
2007-05-28T21:07:41.000000Z
K 7
svn:log
V 909
MFC (revision 1.75)

* Fix possible integer overflow during speed calibration. Delay final
  initialization (pcm_setstatus) after calibration finished.

PR:		kern/100169
Tested by:	Kevin Overman <oberman@es.net>

* Fix (or rather workaround) Intel 440MX Errata #36
  - http://www.intel.com/design/chipsets/specupdt/245051.htm

AC97 Soft Audio and Soft Modem Master Abort Errata

Issue:
  Use of either soft audio or soft modem on an Intel® 82443MX PCISet
  based platform running a 100 MHz Processor System Bus and an AC97 codec
  may result in failures. The system continues to function normally while
  the AC97 hardware may not resume and may require a cold-boot to
  recover. As a result of the failure, the Master Abort Status bit will
  be set in the audio or modem function PCI header space.

Workaround:
  Force uncacheable DMA on both BDL and pcm buffers.

Tested by:	Emil Holmstr|m <emil@linux.se>

END