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MFC r200814:
authormav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 19 Jan 2010 13:33:31 +0000 (13:33 +0000)
committermav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Tue, 19 Jan 2010 13:33:31 +0000 (13:33 +0000)
commitbaeee55261b6a5d7a906b2eda8b91c44f8a1bb78
tree877abe1e33596a31caa0c025691d910542dd2a71tree | snapshot
parent759b20e17ddab0647a8279b2edb1618a803fd4b4commit | diff
MFC r200814:
Clear all ports interrupt status bits in single write. Clearing one by one
causes additional MSIs messages sent if several ports asked for attention
same time. Time window before clearing is not important, as these interrupts
are level triggered by interrupt source.

git-svn-id: svn://svn.freebsd.org/base/stable/8@202624 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/ahci/ahci.c diff | blob | history
8-STABLE