linux-kernel - Re: [PATCH v13 00/11] Add support for MT8195 SCP 2nd core

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Message-ID: <19137752-f78f-1bc0-5408-c5bc09bcbc43@collabora.com>
Date:   Fri, 23 Jun 2023 10:11:39 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Tinghan Shen <tinghan.shen@...iatek.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v13 00/11] Add support for MT8195 SCP 2nd core

Il 22/06/23 19:17, Mathieu Poirier ha scritto:
> On Thu, Jun 22, 2023 at 12:00:08PM +0200, AngeloGioacchino Del Regno wrote:
>> Il 07/06/23 09:22, Tinghan Shen ha scritto:
>>> The mediatek remoteproc driver currently only allows bringing up a
>>> single core SCP, e.g. MT8183. It also only bringing up the 1st
>>> core in SoCs with a dual-core SCP, e.g. MT8195. This series support
>>> to bring-up the 2nd core of the dual-core SCP.
>>>
>>
>> Hello TingHan,
>>
>> Can you please address the comments on patch [05/11] and send a new version ASAP?
>> That's the only remaining issue, so after that the series should be ready.
>>
> 
> There is also the refactoring work in patch 07, and I expect that to take a
> while.
> 

That's right, I forgot about that one. Thanks for that.

Cheers

>> Thanks,
>> Angelo
>>
>>> v12 -> v13:
>>> 1. replace subdevice with new mediatek scp operations in patchset 7
>>> 2. add review tag to patchset 3
>>> 3. modify mediatek,scp phandle name of video-codec@...00000 at patchset 11
>>>
>>> v11 -> v12:
>>> 1. add scp_add_single/multi_core() to patchset 6
>>> 2. remove unused comment in patchset 6
>>> 3. rename list name from mtk_scp_cluster to mtk_scp_list
>>> 4. rewrite the multi-core probe flow
>>> 5. disable rproc->autoboot and boot rproc by request_firmware_nowait at patchset 7
>>> 6. remove patchset 7 review tag
>>>
>>> v10 -> v11:
>>> 1. rewrite patchset 5 to probe single-core SCP with the cluster list
>>> 2. Also in patchset 5, move the pointer of mtk_scp object from the
>>>      platform data property to the driver data property
>>> 3. move the appearance of mtk_scp cluster property to patcheset 7
>>>
>>> v9 -> v10:
>>> 1. move the global mtk_scp list into the platform device driver data structure
>>> 2. remove an unnecessary if() condition
>>>
>>> v8 -> v9:
>>> 1. initialize l1tcm_size/l1tcm_phys at patchset 05/11
>>> 2. rewrite patchset 06/11 to unify the flow and remove hacks
>>>
>>> v7 -> v8:
>>> 1. update the node name of mt8192 asurada SCP rpmsg subnode
>>> 2. squash register definitions into driver patches
>>> 3. initialize local variables on the declaration at patch v8 06/11
>>>
>>> v6 -> v7:
>>> 1. merge the mtk_scp_cluster struct into the mtk_scp structure
>>>      at the "Probe multi-core SCP" patch
>>>
>>> v5 -> v6:
>>> 1. move the mtk_scp_of_regs structure from mtk_common.h to mtk_scp.c
>>> 2. rename the SCP core 0 label from 'scp' to 'scp_c0'
>>>
>>> v4 -> v5:
>>> 1. move resource release actions to the platform driver remove operation
>>> 2. fix dual-core watchdog handling
>>>
>>> v3 -> v4:
>>> 1. change the representation of dual-core SCP in dts file and update SCP yaml
>>> 2. rewrite SCP driver to reflect the change of dts node
>>> 3. drop 'remove redundant call of rproc_boot for SCP' in v3 for further investigation
>>>
>>> v2 -> v3:
>>> 1. change the representation of dual-core SCP in dts file and update SCP yaml
>>> 2. rewrite SCP driver to reflect the change of dts node
>>> 3. add SCP core 1 node to mt8195.dtsi
>>> 4. remove redundant call of rproc_boot for SCP
>>> 5. refine IPI error message
>>>
>>> v1 -> v2:
>>> 1. update dt-binding property description
>>> 2. remove kconfig for scp dual driver
>>> 3. merge mtk_scp_dual.c and mtk_scp_subdev.c to mtk_scp.c
>>>
>>>
>>> Tinghan Shen (11):
>>>     dt-bindings: remoteproc: mediatek: Improve the rpmsg subnode
>>>       definition
>>>     arm64: dts: mediatek: Update the node name of SCP rpmsg subnode
>>>     dt-bindings: remoteproc: mediatek: Support MT8195 dual-core SCP
>>>     remoteproc: mediatek: Add MT8195 SCP core 1 operations
>>>     remoteproc: mediatek: Introduce cluster on single-core SCP
>>>     remoteproc: mediatek: Probe multi-core SCP
>>>     remoteproc: mediatek: Add scp_boot_peers and scp_shutdown_peers
>>>       operations
>>>     remoteproc: mediatek: Setup MT8195 SCP core 1 SRAM offset
>>>     remoteproc: mediatek: Handle MT8195 SCP core 1 watchdog timeout
>>>     remoteproc: mediatek: Refine ipi handler error message
>>>     arm64: dts: mediatek: mt8195: Add SCP 2nd core
>>>
>>>    .../bindings/remoteproc/mtk,scp.yaml          | 176 +++++++-
>>>    .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi |   2 +-
>>>    .../boot/dts/mediatek/mt8192-asurada.dtsi     |   2 +-
>>>    .../boot/dts/mediatek/mt8195-cherry.dtsi      |   6 +-
>>>    arch/arm64/boot/dts/mediatek/mt8195.dtsi      |  32 +-
>>>    drivers/remoteproc/mtk_common.h               |  26 ++
>>>    drivers/remoteproc/mtk_scp.c                  | 425 ++++++++++++++++--
>>>    7 files changed, 594 insertions(+), 75 deletions(-)
>>>
>>