From: Peter Zijlstra <peterz@infradead.org>
To: Tony Lu <zlu@tilera.com>
Cc: Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Chris Metcalf <cmetcalf@tilera.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] tile: Add support for handling PMC hardware
Date: Thu, 6 Mar 2014 11:31:58 +0100 [thread overview]
Message-ID: <20140306103158.GJ9987@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <BAB94DBB0E89D8409949BC28AC95914C5D67FFC3@USMAExch1.tad.internal.tilera.com>
On Thu, Mar 06, 2014 at 10:12:54AM +0000, Tony Lu wrote:
> >One thing I didn't spot is a tile irq_work implementation; perf likes to
> >have one.
>
> We do not have tile irq_work for now. It seems like perf works fine
> even without the arch irq_work. Anyway, we will investigate it, and
> submit it as a separate patch when it gets ready.
Yeah, it does work; I have a note somewhere there's a race without it,
but I lost the relevant details.
I should probably try and reconstruct and either fix or at least
comment :/
prev parent reply other threads:[~2014-03-06 10:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-06 6:13 [PATCH 1/4] tile: Add support for handling PMC hardware Tony Lu
2014-03-06 9:11 ` Peter Zijlstra
2014-03-06 10:12 ` Tony Lu
2014-03-06 10:31 ` Peter Zijlstra [this message]
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