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From: Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: paul.s.diefenbaugh-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Subject: bm_rld semantics
Date: Mon, 13 Oct 2003 23:00:26 -0700 (PDT)	[thread overview]
Message-ID: <20031013225002.U29646@root.org> (raw)

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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                 reply	other threads:[~2003-10-14  6:00 UTC|newest]

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