From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Sebastian Smolorz <ssm@domain.hid>
Cc: adeos-main@gna.org
Subject: Re: [Adeos-main] [PATCH] Fix ipipe_tsc2ns for ARM
Date: Thu, 30 Nov 2006 15:07:54 +0100 [thread overview]
Message-ID: <456EE5BA.8080106@domain.hid> (raw)
In-Reply-To: <E1GpiKm-0003ul-LY@mailer.emlix.com>
Sebastian Smolorz wrote:
> Ok, see my attached patch. But can we assume in all cases that ipipe_tsc2ns is
> used with a value smaller than a long long variable? The only usage of this
> macro so far is in __ipipe_print_delay() which calls it with a substraction
> of two unsigned long long variables.
The patch using do_div also assumes that t * 1000 will never overflow 64
bits. But I agree, it is less restrictive.
>>What value is a 64 bits when it fails,
>>__ipipe_mach_ticks_per_jiffy or t ?
>
>
> Sorry, I'm not really sure what you mean here.
Forget it, I got the answer, it is t that is a 64 bits value.
--
Gilles Chanteperdrix
next prev parent reply other threads:[~2006-11-30 14:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-29 15:17 [Adeos-main] [PATCH] Fix ipipe_tsc2ns for ARM Sebastian Smolorz
2006-11-29 17:27 ` Gilles Chanteperdrix
2006-11-30 9:35 ` Sebastian Smolorz
2006-11-30 14:07 ` Gilles Chanteperdrix [this message]
2006-12-04 10:29 ` Sebastian Smolorz
2006-12-04 11:15 ` Gilles Chanteperdrix
2006-12-06 11:57 ` Philippe Gerum
2006-12-06 13:17 ` Gilles Chanteperdrix
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