From: Scott Wood <scottwood@freescale.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org,
Bogdan Purcareata <bogdan.purcareata@freescale.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI
Date: Wed, 28 Jan 2015 17:03:25 -0600 [thread overview]
Message-ID: <1422486205.10544.99.camel@freescale.com> (raw)
In-Reply-To: <20150128201533.GA10436@gate.crashing.org>
On Wed, 2015-01-28 at 14:15 -0600, Segher Boessenkool wrote:
> On Tue, Jan 27, 2015 at 03:57:53PM -0600, Scott Wood wrote:
> > At this point, given the previous discussion, does anyone object to
> > removing the readback entirely? Do we have any evidence that reading
> > WHOAMI is effective at addressing whatever problem reading EOI made go
> > away on the relevant platform?
>
> What platforms were those? Just test there!
Ben said "some macs". The only Mac I have is packed away and may not be
the one Ben had in mind, so I can't "test there".
> If no one remembers, they can not (any longer) be important platforms ;-)
> Just remove the code, and if in twelve months finally someone reports a
> failure we will at least know what platform it was.
This is what I was trying to encourage. :-)
-Scott
WARNING: multiple messages have this Message-ID (diff)
From: Scott Wood <scottwood@freescale.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Bogdan Purcareata <bogdan.purcareata@freescale.com>,
<linuxppc-dev@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI
Date: Wed, 28 Jan 2015 17:03:25 -0600 [thread overview]
Message-ID: <1422486205.10544.99.camel@freescale.com> (raw)
In-Reply-To: <20150128201533.GA10436@gate.crashing.org>
On Wed, 2015-01-28 at 14:15 -0600, Segher Boessenkool wrote:
> On Tue, Jan 27, 2015 at 03:57:53PM -0600, Scott Wood wrote:
> > At this point, given the previous discussion, does anyone object to
> > removing the readback entirely? Do we have any evidence that reading
> > WHOAMI is effective at addressing whatever problem reading EOI made go
> > away on the relevant platform?
>
> What platforms were those? Just test there!
Ben said "some macs". The only Mac I have is packed away and may not be
the one Ben had in mind, so I can't "test there".
> If no one remembers, they can not (any longer) be important platforms ;-)
> Just remove the code, and if in twelve months finally someone reports a
> failure we will at least know what platform it was.
This is what I was trying to encourage. :-)
-Scott
next prev parent reply other threads:[~2015-01-28 23:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 15:19 [PATCH v2] powerpc/mpic: Add DT option to skip readback after EOI Bogdan Purcareata
2015-01-27 15:19 ` Bogdan Purcareata
2015-01-27 21:57 ` Scott Wood
2015-01-27 21:57 ` Scott Wood
2015-01-28 20:15 ` Segher Boessenkool
2015-01-28 20:15 ` Segher Boessenkool
2015-01-28 23:03 ` Scott Wood [this message]
2015-01-28 23:03 ` Scott Wood
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