linux-kernel - Re: [PATCH 0/9] Add GCE support for MT8196 (series 1/4)

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Message-ID: <e6c2c86d-71bd-453c-847c-1eff2be88be7@collabora.com>
Date: Thu, 8 Jan 2026 10:37:35 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Jason-JH Lin <jason-jh.lin@...iatek.com>,
 Jassi Brar <jassisinghbrar@...il.com>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Matthias Brugger <matthias.bgg@...il.com>,
 Nicolas Dufresne <nicolas@...fresne.ca>, Nancy Lin <nancy.lin@...iatek.com>,
 Singo Chang <singo.chang@...iatek.com>,
 Paul-PL Chen <paul-pl.chen@...iatek.com>, Moudy Ho <moudy.ho@...iatek.com>,
 Xiandong Wang <xiandong.wang@...iatek.com>,
 Sirius Wang <sirius.wang@...iatek.com>, Fei Shao <fshao@...omium.org>,
 Chen-yu Tsai <wenst@...omium.org>,
 Project_Global_Chrome_Upstream_Group@...iatek.com,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org,
 linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
 Jason-jh Lin <jason-jh.lin@...iatek.corp-partner.google.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH 0/9] Add GCE support for MT8196 (series 1/4)

Il 31/10/25 16:56, Jason-JH Lin ha scritto:
> From: Jason-jh Lin <jason-jh.lin@...iatek.corp-partner.google.com>
> 
> This series adds initial support for the MediaTek MT8196 GCE in the CMDQ
> driver, including related API changes for new hardware requirements.
> 
> Series application order:
>    1. [Fixes] Refine DMA address handling for the command buffer
>    - https://lore.kernel.org/all/20251022171847.379470-1-jason-jh.lin@mediatek.com/
>    2. [Series 1/4] Add GCE support for MT8196 and update CMDQ APIs (this series)
>    3. [Series 2/4] Migrate subsystems to new CMDQ APIs
>    4. [Series 3/4] Remove shift_pa from CMDQ jump functions
>    5. [Series 4/4] Remove deprecated CMDQ APIs
> 
> Please apply this series after the DMA address handling Fixes patch[1],
> and before the following series.
> 

Jassi, since this is touching both mailbox and soc/mediatek, can we avoid to create
immutable branches to pick this entire thing?

If you wish, I'm fine with you picking the soc/mediatek commits as well as the
mailbox ones, or I can pick the mailbox ones instead if you're okay with that.

Whole series is, of course...

Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Cheers,
Angelo

> ---
> 
> Jason-JH Lin (9):
>    arm64: dts: mediatek: Add GCE header for MT8196
>    mailbox: mtk-cmdq: Add cmdq private data to cmdq_pkt for generating
>      instruction
>    mailbox: mtk-cmdq: Add GCE hardware virtualization configuration
>    mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM
>      transaction
>    mailbox: mtk-cmdq: Add driver data to support for MT8196
>    soc: mediatek: mtk-cmdq: Add cmdq_get_mbox_priv() in cmdq_pkt_create()
>    soc: mediatek: mtk-cmdq: Add pa_base parsing for hardware without
>      subsys ID support
>    soc: mediatek: mtk-cmdq: Extend cmdq_pkt_write API for SoCs without
>      subsys ID
>    soc: mediatek: mtk-cmdq: Add mminfra_offset adjustment for DRAM
>      addresses
> 
>   arch/arm64/boot/dts/mediatek/mt8196-gce.h | 612 ++++++++++++++++++++++
>   drivers/mailbox/mtk-cmdq-mailbox.c        |  74 ++-
>   drivers/soc/mediatek/mtk-cmdq-helper.c    |  77 ++-
>   include/linux/mailbox/mtk-cmdq-mailbox.h  |  19 +
>   include/linux/soc/mediatek/mtk-cmdq.h     |  93 ++++
>   5 files changed, 869 insertions(+), 6 deletions(-)
>   create mode 100644 arch/arm64/boot/dts/mediatek/mt8196-gce.h
>