bm_rld semantics

[Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>]

I'm a little confused as to what BM_RLD actually does.  Section 4.7.3.2.1
says only that setting BM_RLD enables bm activity to exit the C3 state.
However, the last paragraph of 8.1.4 says that if BM_RLD is set after
exiting C3, then it was exited at the request of a bus master.  So in
practice, do people implement one or both behaviors?  If BM_RLD is set
before C3 but zero after exiting it, does this mean it was exited due to
an interrupt?  It seems the Linux driver only uses BM_RLD as a control
register.

Thanks,
Nate


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