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(parent: 947a420) | patch
Optimise the XHCI interrupt handling.
authorhselasky <hselasky@FreeBSD.org>
Mon, 7 Jan 2013 16:38:13 +0000 (16:38 +0000)
committerhselasky <hselasky@FreeBSD.org>
Mon, 7 Jan 2013 16:38:13 +0000 (16:38 +0000)
commitdf2c4939a02300f9c4d66e1a38553e5743cbb5f9
tree6a5314d1312ee8e805f8701118adb8f381c36cf4tree | snapshot
parent947a420026628a814c3e461f9105d7bfeb6333e3commit | diff
Optimise the XHCI interrupt handling.
This patch will save CPU time when the XHCI interrupt is
shared with other devices.
Only check event rings when interrupt bits are set.
Otherwise would indicate hiding possible hardware fault(s).

Tested by: sos @
Submitted by: sos @
MFC after: 1 week
sys/dev/usb/controller/xhci.c diff | blob | history
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