Date: Sun, 12 Sep 2010 11:30:43 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: Alexander Motin <mav@FreeBSD.org> Cc: FreeBSD-Current <freebsd-current@FreeBSD.org>, Norikatsu Shigemura <nork@FreeBSD.org> Subject: Re: CPU C-state storange on Panasonic TOUGH BOOK CF-R9 Message-ID: <4C8C8FB3.9060100@icyb.net.ua> In-Reply-To: <4C8C8B64.8020907@FreeBSD.org> References: <4C8BCAC5.5050008@root.org> <mailpost.1284277196.1767764.83548.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw> <4C8C8B64.8020907@FreeBSD.org>
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on 12/09/2010 11:12 Alexander Motin said the following: > Just an idea. Limits of 100 and 1000 are defined for detection of > C-states using P_LVLx_LAT registers. Because _CST explicitly specifies > which states are available, these limitations may not apply there. I > would try to comment these checks in acpi_cpu_cx_cst() and look what > happen. At least I haven't found in ACPI 3.0 specification any latency > limits applied to _CST. Not 100% sure, but what you said does make sense. I couldn't also find any such wording in ACPI 4.0 spec. -- Andriy Gapon
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