From: will.deacon@arm•com (Will Deacon)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V4] iommu/arm-smmu-v2: Workaround for ThunderX errata#27704
Date: Fri, 4 Mar 2016 20:59:46 +0000 [thread overview]
Message-ID: <20160304205945.GG7886@arm.com> (raw)
In-Reply-To: <1457116784-13287-1-git-send-email-tchalamarla@caviumnetworks.com>
On Fri, Mar 04, 2016 at 10:39:44AM -0800, Tirumalesh Chalamarla wrote:
> Due to Errata#27704 CN88xx SMMUv2,supports only shared ASID and VMID
> namespaces; specifically within a given node SMMU0 and SMMU1 share,
> as does SMMU2 and SMMU3.
>
> This patch make sure ASID and VMID space is unique across cavium SMMUv2.
>
> changes from V3:
> - Removed redundent variable.
> - Used atomic_t for maintaining running total
>
> changes from V2:
> - removed *_base from DT, and replaced with compatible string
>
> changes from V1:
> - rebased on top of 16 bit VMID patch
> - removed redundent options from DT
> - insted of transform, DT now supplies starting ASID/VMID
>
> Signed-off-by: Tirumalesh Chalamarla <tchalamarla@caviumnetworks•com>
> Signed-off-by: Akula Geethasowjanya <Geethasowjanya.Akula@caviumnetworks•com>
> ---
> Documentation/arm64/silicon-errata.txt | 1 +
> .../devicetree/bindings/iommu/arm,smmu.txt | 1 +
> drivers/iommu/arm-smmu.c | 42 ++++++++++++++++------
> 3 files changed, 33 insertions(+), 11 deletions(-)
Hmm, this doesn't seem to apply to my iommu/devel branch. Am I missing
some dependency?
Will
next prev parent reply other threads:[~2016-03-04 20:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-04 18:39 [PATCH V4] iommu/arm-smmu-v2: Workaround for ThunderX errata#27704 Tirumalesh Chalamarla
2016-03-04 20:59 ` Will Deacon [this message]
2016-03-04 21:35 ` Tirumalesh Chalamarla
-- strict thread matches above, loose matches on Subject: below --
2016-03-04 21:56 Tirumalesh Chalamarla
2016-03-24 17:36 ` Chalamarla, Tirumalesh
2016-03-24 17:51 ` Will Deacon
2016-03-24 18:29 ` Chalamarla, Tirumalesh
2016-03-28 18:57 ` Radha Mohan
2016-03-28 19:25 ` Radha Mohan
2016-03-04 3:44 Tirumalesh Chalamarla
2016-03-04 16:02 ` Will Deacon
2016-03-04 18:09 ` Tirumalesh Chalamarla
2016-03-04 18:16 ` Tirumalesh Chalamarla
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=20160304205945.GG7886@arm.com \
--to=will.deacon@arm$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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