From: Leif Lindholm <leif.lindholm@linaro.org>
To: Will Deacon <will.deacon@arm.com>
Cc: "msalter@redhat.com" <msalter@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"grant.likely@secretlab.ca" <grant.likely@secretlab.ca>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
"patches@linaro.org" <patches@linaro.org>,
"roy.franz@linaro.org" <roy.franz@linaro.org>,
"matt.fleming@intel.com" <matt.fleming@intel.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v4 2/5] arm: add new asm macro update_sctlr
Date: Mon, 3 Feb 2014 18:15:44 +0000 [thread overview]
Message-ID: <20140203181544.GK11329@bivouac.eciton.net> (raw)
In-Reply-To: <20140203165718.GO14112@mudshark.cambridge.arm.com>
On Mon, Feb 03, 2014 at 04:57:18PM +0000, Will Deacon wrote:
> > mov[tw]: why?
> > Then we end up battling different available immediate fields in A32/T32
> > instruction sets and v5/v6/v7 architecture versions.
>
> I was making the assumption that UEFI was going to be v7 only... is this not
> true?
There is no such requirement in the specification.
It even mentions requirements for ARMv4 in one place :)
But I also don't understand why ldr= should be avoided.
This is not performance sensitive (called once on system boot), and
it's already executing with the caches off, so even if it ends up
being a literal load it does not pollute.
/
Leif
next prev parent reply other threads:[~2014-02-03 18:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-11 13:05 [PATCH v4 0/5] arm: add UEFI runtime services support Leif Lindholm
2014-01-11 13:05 ` [PATCH v4 1/5] arm: break part of __soft_restart out into separate function Leif Lindholm
2014-01-22 11:09 ` Will Deacon
2014-01-11 13:05 ` [PATCH v4 2/5] arm: add new asm macro update_sctlr Leif Lindholm
2014-01-22 11:20 ` Will Deacon
2014-01-29 18:28 ` Leif Lindholm
2014-01-29 19:27 ` Will Deacon
2014-01-29 20:58 ` Mark Salter
2014-01-30 13:12 ` Leif Lindholm
2014-02-03 10:34 ` Will Deacon
2014-02-03 15:55 ` Leif Lindholm
2014-02-03 16:00 ` Will Deacon
2014-02-03 16:20 ` Rob Herring
2014-02-03 16:46 ` Leif Lindholm
2014-02-03 16:57 ` Will Deacon
2014-02-03 18:15 ` Leif Lindholm [this message]
2014-01-11 13:05 ` [PATCH v4 3/5] Documentation: arm: add UEFI support documentation Leif Lindholm
2014-01-11 13:05 ` [PATCH v4 4/5] arm: Add [U]EFI runtime services support Leif Lindholm
2014-01-13 15:40 ` Matt Fleming
2014-01-13 18:43 ` Arnd Bergmann
2014-01-13 20:01 ` Leif Lindholm
2014-01-14 6:52 ` Arnd Bergmann
2014-01-14 11:44 ` Leif Lindholm
2014-01-14 13:26 ` Arnd Bergmann
2014-01-14 15:25 ` Leif Lindholm
2014-01-11 13:05 ` [PATCH v4 5/5] init: efi: arm: enable (U)EFI runtime services on arm Leif Lindholm
2014-01-13 18:29 ` Arnd Bergmann
2014-01-13 18:57 ` Leif Lindholm
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140203181544.GK11329@bivouac.eciton.net \
--to=leif.lindholm@linaro.org \
--cc=grant.likely@secretlab.ca \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-efi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=matt.fleming@intel.com \
--cc=msalter@redhat.com \
--cc=patches@linaro.org \
--cc=roy.franz@linaro.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome