From: Chengci.Xu <chengci.xu@mediatek.com>
To: Yong Wu <yong.wu@mediatek.com>, Joerg Roedel <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: <iommu@lists.linux.dev>, <linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
Chengci.Xu <chengci.xu@mediatek.com>
Subject: [PATCH v2 0/3] MT8188 IOMMU SUPPORT
Date: Wed, 31 Aug 2022 20:54:59 +0800 [thread overview]
Message-ID: <20220831125502.7818-1-chengci.xu@mediatek.com> (raw)
This patchset adds MT8188 IOMMU support.
MT8188 have 3 IOMMU HWs. 2 IOMMU HW is for multimedia, and 1 IOMMU HW
is for infra-master, like PCIe.
About the 2 MM IOMMU HW, the connection could be something like this:
IOMMU(VDO) IOMMU(VPP)
| |
SMI_COMMON(VDO) SMI_COMMON(VPP)
--------------- ----------------
| | ... | | ...
larb0 larb2 ... larb1 larb3 ...
INFRA IOMMU does not have SMI, the master connects to IOMMU directly.
Although multiple banks supported in MT8188, we only use one of them,
which means PCIe is put in bank0 of INFRA IOMMU.
So we have two pgtable for MT8188, specifically, these two MM IOMMU HW
share a pgtable while INFRA IOMMU HW use a independent pgtable.
Another change is that we add some SMC command for INFRA master to
enable/disable INFRA IOMMU in ATF considering security concerns.
changes since v2:
- base on tag: next-20220831.
- rename "mt8188-memory-port.h" to "mediatek,mt8188-memory-port.h".
- use dual-license in "mediatek,mt8188-memory-port.h"
- remove unnecessary "()" when define SMI_LARB_ID
changes since v1:
- base on tag: next-20220803.
- adds MT8188 IOMMU support.
Chengci.Xu (3):
dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
iommu/mediatek: Add enable IOMMU SMC command for INFRA master
iommu/mediatek: Add MT8188 IOMMU Support
.../bindings/iommu/mediatek,iommu.yaml | 12 +-
drivers/iommu/mtk_iommu.c | 82 ++-
.../memory/mediatek,mt8188-memory-port.h | 482 ++++++++++++++++++
include/soc/mediatek/smi.h | 1 +
4 files changed, 568 insertions(+), 9 deletions(-)
create mode 100644 include/dt-bindings/memory/mediatek,mt8188-memory-port.h
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2022-08-31 13:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 12:54 Chengci.Xu [this message]
2022-08-31 12:55 ` [PATCH v2 1/3] dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU Chengci.Xu
2022-09-08 10:49 ` Krzysztof Kozlowski
2022-09-09 3:20 ` Chengci.Xu
2022-09-09 7:11 ` Krzysztof Kozlowski
2022-09-09 7:39 ` Chengci.Xu
2022-08-31 12:55 ` [PATCH v2 2/3] iommu/mediatek: Add enable IOMMU SMC command for INFRA master Chengci.Xu
2022-09-02 9:00 ` AngeloGioacchino Del Regno
2022-09-08 7:46 ` Chengci.Xu
2022-09-07 3:37 ` Yong Wu
2022-09-08 10:03 ` Chengci.Xu
2022-08-31 12:55 ` [PATCH v2 3/3] iommu/mediatek: Add MT8188 IOMMU Support Chengci.Xu
2022-09-02 9:04 ` AngeloGioacchino Del Regno
2022-09-08 9:57 ` Chengci.Xu
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=20220831125502.7818-1-chengci.xu@mediatek.com \
--to=chengci.xu@mediatek.com \
--cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
--cc=devicetree@vger.kernel.org \
--cc=iommu@lists.linux.dev \
--cc=joro@8bytes.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=matthias.bgg@gmail.com \
--cc=robh+dt@kernel.org \
--cc=robin.murphy@arm.com \
--cc=will@kernel.org \
--cc=yong.wu@mediatek.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;
as well as URLs for NNTP newsgroup(s).