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Message-ID: <20220816131634.38195-1-hejunhao3@huawei.com>
Date: Tue, 16 Aug 2022 21:16:32 +0800
From: Junhao He <hejunhao3@...wei.com>
To: <mathieu.poirier@...aro.org>, <suzuki.poulose@....com>,
<mike.leach@...aro.org>, <leo.yan@...aro.org>
CC: <coresight@...ts.linaro.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <linuxarm@...wei.com>,
<liuqi115@...wei.com>, <f.fangjian@...wei.com>,
<prime.zeng@...ilicon.com>, <hejunhao3@...wei.com>
Subject: [PATCH v8 0/2] Add support for UltraSoc System Memory Buffer
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-hejunhao3@huawei.com/
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@huawei.com/
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@huawei.com/
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@huawei.com/
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@huawei.com/
Change since v2:
- Move ultrasoc driver to drivers/hwtracing/coresight.
- 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 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
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