linux-kernel - [PATCH 0/4] Add global CMA areas for few TI SoCs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250424084415.66457-1-j-choudhary@ti.com>
Date: Thu, 24 Apr 2025 14:14:11 +0530
From: Jayesh Choudhary <j-choudhary@...com>
To: <nm@...com>, <vigneshr@...com>, <linux-kernel@...r.kernel.org>
CC: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <kristo@...nel.org>, <u-kumar1@...com>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devarsht@...com>,
        <j-choudhary@...com>
Subject: [PATCH 0/4] Add global CMA areas for few TI SoCs

Hello All,

Following AM62* platforms[0], this patches add global CMA reserve area for:
- J721S2-EVM (1056 MiB)
- J784S4-EVM (1920 MiB)
- AM68-SK (1008 MiB)
- AM69-SK (1904 MiB)

These SoCs does not have MMU and hence they require contiguous memory
pool to support various multimedia usecase.

The calculation was done considering H264 codec requirements, dual-display
supported in each platforms and multicamera use-cases.
Additional buffer was kept for other peripheral s and to account for
fragmentation.
The breakdown is mentioned in each commit message.

[0]: https://lore.kernel.org/all/20240613150902.2173582-1-devarsht@ti.com/

Jayesh Choudhary (4):
  arm64: dts: ti: k3-j721s2-som-p0: Reserve 1056MiB of global CMA
  arm64: dts: ti: k3-j784s4-j742s2-evm-common: Reserve 1920MiB of global
    CMA
  arm64: dts: ti: k3-am68-sk-som: Reserve 1008MiB of global CMA
  arm64: dts: ti: k3-am69-sk: Reserve 1904MiB of global CMA

 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi              | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-am69-sk.dts                   | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi            | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi | 8 ++++++++
 4 files changed, 32 insertions(+)

-- 
2.34.1