From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Add support for LPAE style CONTEXTIDR
Date: Mon, 24 Jun 2013 11:15:06 -0400 [thread overview]
Message-ID: <51C8627A.5000106@codeaurora.org> (raw)
In-Reply-To: <20130624145303.GA25582@mudshark.cambridge.arm.com>
On 06/24/2013 10:53 AM, Will Deacon wrote:
> On Mon, Jun 24, 2013 at 03:39:09PM +0100, Christopher Covington wrote:
>> Hi Will,
>>
>> On 06/24/2013 10:04 AM, Will Deacon wrote:
>> [...]
>>
>>> What's the advantage of this approach, other than you get an extra byte's
>>> worth of PID?
>>
>> In my view, the real advantage is that the the PID is located where people
>> reading ARM Architecture Reference Manual are told they can find it.
>
> Perhaps, but I'd usually expect a debugger or trace tools to do something
> with the PID, and they likely expect it to be shifted, so you can't really
> win.
But reading and implementing the architecture *is* winning! LOL. I'll file a
ticket with the architecture folks and see what they think.
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.
next prev parent reply other threads:[~2013-06-24 15:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-24 13:26 [PATCH] ARM: Add support for LPAE style CONTEXTIDR Christopher Covington
2013-06-24 14:04 ` Will Deacon
2013-06-24 14:39 ` Christopher Covington
2013-06-24 14:53 ` Will Deacon
2013-06-24 15:15 ` Christopher Covington [this message]
2013-06-26 17:11 ` Will Deacon
2013-06-26 18:02 ` Christopher Covington
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