| From: |
| Junhao He <hejunhao3-AT-huawei.com> |
| To: |
| <mathieu.poirier-AT-linaro.org>, <suzuki.poulose-AT-arm.com>, <mike.leach-AT-linaro.org>, <leo.yan-AT-linaro.org> |
| Subject: |
| [PATCH v8 0/2] Add support for UltraSoc System Memory Buffer |
| Date: |
| Tue, 16 Aug 2022 21:16:32 +0800 |
| Message-ID: |
| <20220816131634.38195-1-hejunhao3@huawei.com> |
| Cc: |
| <coresight-AT-lists.linaro.org>, <linux-kernel-AT-vger.kernel.org>, <linux-arm-kernel-AT-lists.infradead.org>, <linuxarm-AT-huawei.com>, <liuqi115-AT-huawei.com>, <f.fangjian-AT-huawei.com>, <prime.zeng-AT-hisilicon.com>, <hejunhao3-AT-huawei.com> |
| Archive-link: |
| Article |
Add support for UltraSoc System Memory Buffer.
Change since v7:
- Use the macros for register bit flags and numbers of resource.
- Fix punctuation.
- Update the Date tag and the KernelVersion tag in the document.
- Link: https://lore.kernel.org/lkml/20220712091353.34540-1-hejun...
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/20220606130223.5...
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/20220416083953.5...
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/20220128061755.3...
Change since v3:
- Modify the file header according to community specifications.
- Address the comments from Mathieu.
- Link: https://lore.kernel.org/linux-arm-kernel/20211118110016.4...
Change since v2:
- Move ultrasoc driver to drivers/hwtracing/coresight.
- Link: https://lists.linaro.org/pipermail/coresight/2021-Novembe...
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/...
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/00...
Qi Liu (2):
drivers/coresight: Add UltraSoc System Memory Buffer driver
Documentation: Add document for UltraSoc SMB drivers
.../sysfs-bus-coresight-devices-ultra_smb | 31 +
.../trace/coresight/ultrasoc-smb.rst | 80 +++
drivers/hwtracing/coresight/Kconfig | 10 +
drivers/hwtracing/coresight/Makefile | 1 +
drivers/hwtracing/coresight/ultrasoc-smb.c | 636 ++++++++++++++++++
drivers/hwtracing/coresight/ultrasoc-smb.h | 115 ++++
6 files changed, 873 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb
create mode 100644 Documentation/trace/coresight/ultrasoc-smb.rst
create mode 100644 drivers/hwtracing/coresight/ultrasoc-smb.c
create mode 100644 drivers/hwtracing/coresight/ultrasoc-smb.h
--
2.33.0
