Re: [PATCH v16 0/2] Add support for UltraSoc System Memory Buffer

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On 14/01/2023 10:13, Junhao He wrote:
Add support for UltraSoc System Memory Buffer.

Change since v15:
- Modify document based on Bagas and Suzuki's comments.
- Link: https://lore.kernel.org/lkml/20221220092945.30722-1-hejunhao3@xxxxxxxxxx/

Change since v14:
- Add some helpers to the buffer and simplify dumping data according to Jonathan's comment.
- Link: https://lore.kernel.org/lkml/20221123123823.27973-1-hejunhao3@xxxxxxxxxx/

Change since v13:
- Modify document and the patches description according to Bagas's comment.
- Add dependency on config ACPI, drop redundant enable hw in smb_update_buffer(),
   Modify smb_purge_data() description according to Suzuki's comment.
- Link: https://lore.kernel.org/lkml/20221114090316.63157-1-hejunhao3@xxxxxxxxxx/

Change since v12:
- Modify the code style and add "#ifdef CONFIG_ACPI" according to Jonathan's comment.
- Address the comments from Yicong, included drop "buf_base"__iomem attribute,
   modify the "reading" type to bool and fix FIELD_PREP.
- Link: https://lore.kernel.org/lkml/20221109135008.9485-1-hejunhao3@xxxxxxxxxx/

Change since v11:
- Modify the code style and rename the macro according to Jonathan's comment.
- Link: https://lore.kernel.org/lkml/20221107130624.59886-1-hejunhao3@xxxxxxxxxx/

Change since v10:
- Rebase onto v6.1-rc4, included similar sysfs register accessors (as same as James's patch)
- Link: https://lore.kernel.org/lkml/20221022115929.7503-1-hejunhao3@xxxxxxxxxx/

Change since v9:
- Update the Contact tag in SMB document.
- Replace the spinlock with mutex.
- Do some clean-ups in "smb_enable()" and "smb_release()".
- Use classic memory mapped interface.
- Link: https://lore.kernel.org/linux-arm-kernel/20220818132231.28240-1-hejunhao3@xxxxxxxxxx/

Change since v8:
- Insert a blank line at the end of the config tag in Kconfig according to Randy's comment.
- Link: https://lore.kernel.org/linux-arm-kernel/20220816131634.38195-1-hejunhao3@xxxxxxxxxx/

Change since v7:
- Use the macros for register bit flags and numbers of resource.
- Cleanup punctuation.
- Update the Date tag and the KernelVersion tag in the document.
- Link: https://lore.kernel.org/lkml/20220712091353.34540-1-hejunhao3@xxxxxxxxxx/

Change since v6:
- Modify the code style and driver description according to Suzuki's comment.
- Modify configuration of "drvdata->reading", to void problems in open/read
   concurrency scenario.
- Rename the macro of "SMB_FLOW_MASK".
- Use the "handle->head" to determine the page number and offset.
- Link: https://lore.kernel.org/linux-arm-kernel/20220606130223.57354-1-liuqi115@xxxxxxxxxx/

   Change since v5:
- Address the comments from Suzuki, add some comments in SMB document, and modify
   configuration of "drvdata->reading", to void problems in multi-core concurrency scenario
- Link: https://lore.kernel.org/linux-arm-kernel/20220416083953.52610-1-liuqi115@xxxxxxxxxx/

Change since v4:
- Add a simple document of SMB driver according to Suzuki's comment.
- Address the comments from Suzuki.
- Link: https://lore.kernel.org/linux-arm-kernel/20220128061755.31909-1-liuqi115@xxxxxxxxxx/

Change since v3:
- Modify the file header according to community specifications.
- Address the comments from Mathieu.
- Link: https://lore.kernel.org/linux-arm-kernel/20211118110016.40398-1-liuqi115@xxxxxxxxxx/

Change since v2:
- Move ultrasoc driver to drivers/hwtracing/coresight by Mathieu's comment.
- Link: https://lists.linaro.org/pipermail/coresight/2021-November/007310.html

Change since v1:
- Drop the document of UltraSoc according to Mathieu's comment.
- Add comments to explain some private hardware settings.
- Address the comments from Mathieu.
- Link: https://lists.linaro.org/pipermail/coresight/2021-August/006842.html

Change since RFC:
- Move driver to drivers/hwtracing/coresight/ultrasoc.
- Remove ultrasoc-axi-com.c, as AXI-COM doesn't need to be configured in
   basic tracing function.
- Remove ultrasoc.c as SMB does not need to register with the ultrasoc core.
- Address the comments from Mathieu and Suzuki.
- Link: https://lists.linaro.org/pipermail/coresight/2021-June/006535.html

Qi Liu (2):
   drivers/coresight: Add UltraSoc System Memory Buffer driver
   Documentation: Add document for UltraSoc SMB driver


Queued to coresight next tree

https://git.kernel.org/coresight/c/06f5c2926aaa
https://git.kernel.org/coresight/c/2d4103ae31aa

Thanks for the patches

Suzuki



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