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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: Xenomai <xenomai@xenomai.org>
Subject: [Xenomai] i8253 clocksource vs. rthal_get_8254_tsc
Date: Wed, 06 Feb 2013 11:20:50 +0100	[thread overview]
Message-ID: <51122E82.6050209@siemens.com> (raw)

Hi Gilles,

I just realized that there is now a 8253 clocksource in core-3.4+. How
does this work together with Xenomai's TSC emulation via the 8254 in the
x86 hal_32? Xenomai reprograms the PIT in rthal_setup_8254_tsc - is this
harmless?

I came across this while trying to get rid of Xenomai's "depends on
!INPUT_PCSPKR" to avoid that circular Kbuild dependency.

Jan

-- 
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux


             reply	other threads:[~2013-02-06 10:20 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-06 10:20 Jan Kiszka [this message]
2013-02-06 12:18 ` [Xenomai] i8253 clocksource vs. rthal_get_8254_tsc Gilles Chanteperdrix
2013-02-06 12:28   ` Jan Kiszka
2013-02-06 12:30     ` Jan Kiszka
2013-02-06 12:31     ` Gilles Chanteperdrix
2013-02-06 12:33       ` Jan Kiszka
2013-02-06 12:36         ` Gilles Chanteperdrix
2013-02-06 12:43           ` Jan Kiszka

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