From: Vojtech Pavlik <vojtech@suse.cz>
To: linux-kernel@vger.kernel.org
Subject: asm/timex.h
Date: Fri, 24 May 2002 19:33:45 +0200 [thread overview]
Message-ID: <20020524193345.A21559@ucw.cz> (raw)
Hi!
I have several questions about asm/timex.h
1) Who uses it? The kernel certainly doesn't. Perhaps NTP?
2) CLOCK_TICK_RATE is defined on i386 and similar archs
to be 1193180. This is wrong, because the real frequency
of the i8253 PIT timer is 14.31818 MHz / 12 = 1.11931816 MHz,
so CLOCK_TICK_RATE should be 1193182. Should it be fixed?
3) What if an architecture doesn't have a compile-time known
CLOCK_TICK_RATE? I suppose I cannot just #define it to a variable,
because the kernel doesn't use it, and that probably means userland
does ...
Anyone knows the answers?
--
Vojtech Pavlik
SuSE Labs
next reply other threads:[~2002-05-24 17:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-24 17:33 Vojtech Pavlik [this message]
2002-05-24 17:49 ` asm/timex.h Christoph Hellwig
2002-05-24 18:23 ` asm/timex.h Vojtech Pavlik
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