From: Ralf Baechle <ralf@linux-mips.org>
To: Jun Sun <jsun@mvista.com>
Cc: Matthew Dharm <mdharm@momenco.com>,
Linux-MIPS <linux-mips@linux-mips.org>
Subject: Re: time.c CP0_COMPARE
Date: Mon, 2 Sep 2002 18:30:53 +0200 [thread overview]
Message-ID: <20020902183053.E15618@linux-mips.org> (raw)
In-Reply-To: <3D6E5C58.405@mvista.com>; from jsun@mvista.com on Thu, Aug 29, 2002 at 10:39:36AM -0700
On Thu, Aug 29, 2002 at 10:39:36AM -0700, Jun Sun wrote:
> Ralf Baechle wrote:
> > c0_compare = c0_count + mips_counter_frequency / HZ.
> >
> > That's what the individual boards are currently doing themselves though that
> > should be done in generic code.
> >
>
> Good idea.
>
> The attached patch attempts to set the first interrupt. It should be benign
> even if a system is not using CPU counter as timer interrupt.
>
> I also updated the time.README, including a new section about implementation
> on a SMP machine.
Applied though I think that this should also be done via start_secondary
that is we'll need some per_cpu_time_init analog to per_cpu_trap_init.
Also of course your change makes some cleanup possible as the initialization
no happens twice for a bunch of platforms.
Ralf
next parent reply other threads:[~2002-09-02 15:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <NEBBLJGMNKKEEMNLHGAIEEKHCIAA.mdharm@momenco.com>
[not found] ` <20020829142133.A3905@bacchus.dhis.org>
[not found] ` <3D6E5C58.405@mvista.com>
2002-09-02 16:30 ` Ralf Baechle [this message]
2002-09-03 16:59 ` time.c CP0_COMPARE (and SMP IPI rambling) Jun Sun
2002-09-04 10:50 ` Maciej W. Rozycki
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