CoreSight

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[PATCH v2 0/7] perf cs_etm: Basic support for virtual/kernel timestamps

by James Clark

Changes since v1: * Add 3 refactor commits for sysfs reading around pmu.c as suggested by Arnaldo here [1] * The dependency on [2] has now reached mainline so is no longer blocking * Rebase on perf/core [1]: https://lore.kernel.org/all/YnqVqq5QW%2Fb14oPZ@kernel.org/ [2]: https://lore.kernel.org/all/20220503123537.1003035-1-german.gomez@arm.com/ German Gomez (4): perf pmu: Add function to check if a pmu file exists perf cs_etm: Keep separate symbols for ETMv4 and ETE parameters perf cs_etm: Record ts_source in AUXTRACE_INFO for ETMv4 and ETE perf cs_etm: Set the time field in the synthetic samples James Clark (3): perf: Remove duplication around EVENT_SOURCE_DEVICE_PATH perf: Use perf_pmu__open_file() and perf_pmu__scan_file() perf: Remove remaining duplication of bus/event_source/devices/... tools/perf/arch/arm/util/auxtrace.c | 5 +- tools/perf/arch/arm/util/cs-etm.c | 91 +++++++++++- tools/perf/arch/x86/util/pmu.c | 12 +- tools/perf/tests/evsel-roundtrip-name.c | 3 +- tools/perf/tests/parse-events.c | 3 +- tools/perf/util/cputopo.c | 9 +- tools/perf/util/cs-etm-base.c | 34 +++-- tools/perf/util/cs-etm.c | 86 +++++++++-- tools/perf/util/cs-etm.h | 13 +- tools/perf/util/pmu-hybrid.c | 27 +--- tools/perf/util/pmu-hybrid.h | 2 +- tools/perf/util/pmu.c | 183 ++++++++++-------------- tools/perf/util/pmu.h | 10 +- 13 files changed, 292 insertions(+), 186 deletions(-) base-commit: 573de010917836f198a4e579d40674991659668b -- 2.25.1

2 years, 4 months

[PATCH v15 0/2] Add support for UltraSoc System Memory Buffer

by Junhao He

Add support for UltraSoc System Memory Buffer. 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@huawei.com/ 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@huawei.com/ 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@huawei.com/ 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@huawei.com/ 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@huawei.com/ 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@h… 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@h… 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@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@hu… 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@hu… 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@hu… 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@hu… 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 .../sysfs-bus-coresight-devices-ultra_smb | 31 + .../trace/coresight/ultrasoc-smb.rst | 83 +++ drivers/hwtracing/coresight/Kconfig | 12 + drivers/hwtracing/coresight/Makefile | 1 + drivers/hwtracing/coresight/ultrasoc-smb.c | 648 ++++++++++++++++++ drivers/hwtracing/coresight/ultrasoc-smb.h | 125 ++++ 6 files changed, 900 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

2 years, 4 months

Re: [PATCH v15 2/2] Documentation: Add document for UltraSoc SMB driver

by hejunhao

On 2022/12/21 12:02, Bagas Sanjaya wrote: > On Tue, Dec 20, 2022 at 05:29:45PM +0800, Junhao He wrote: >> diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb b/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb >> new file mode 100644 >> index 000000000000..f6526882c627 >> --- /dev/null >> +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb >> @@ -0,0 +1,31 @@ >> +What: /sys/bus/coresight/devices/ultra_smb<N>/enable_sink >> +Date: December 2022 >> +KernelVersion: 6.2 >> +Contact: Junhao He <hejunhao3(a)huawei.com> >> +Description: (RW) Add/remove a SMB device from a trace path. There can be >> + multiple sources for a single SMB device. >> + >> +What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_size >> +Date: December 2022 >> +KernelVersion: 6.2 >> +Contact: Junhao He <hejunhao3(a)huawei.com> >> +Description: (Read) Shows the buffer size of each UltraSoc SMB device. >> + >> +What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_status >> +Date: December 2022 >> +KernelVersion: 6.2 >> +Contact: Junhao He <hejunhao3(a)huawei.com> >> +Description: (Read) Shows the value held by UltraSoc SMB status register. >> + BIT(0) is zero means buffer is empty. >> + >> +What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/read_pos >> +Date: December 2022 >> +KernelVersion: 6.2 >> +Contact: Junhao He <hejunhao3(a)huawei.com> >> +Description: (Read) Shows the value held by UltraSoc SMB Read Pointer register. >> + >> +What: /sys/bus/coresight/devices/ultra_smb<N>/mgmt/write_pos >> +Date: December 2022 >> +KernelVersion: 6.2 >> +Contact: Junhao He <hejunhao3(a)huawei.com> >> +Description: (Read) Shows the value held by UltraSoc SMB Write Pointer register. > s/Read/RO/ and s/value held by/value of/ Ok, will fix it. Thanks. >> diff --git a/Documentation/trace/coresight/ultrasoc-smb.rst b/Documentation/trace/coresight/ultrasoc-smb.rst >> new file mode 100644 >> index 000000000000..056dd120e14c >> --- /dev/null >> +++ b/Documentation/trace/coresight/ultrasoc-smb.rst >> @@ -0,0 +1,83 @@ >> +.. SPDX-License-Identifier: GPL-2.0 >> + >> +====================================== >> +UltraSoc - HW Assisted Tracing on SoC >> +====================================== >> + :Author: Qi Liu <liuqi115(a)huawei.com> >> + :Date: December 2022 >> + >> +Introduction >> +------------ >> + >> +UltraSoc SMB is a per SCCL (Super CPU Cluster) hardware. It provides a >> +way to buffer and store CPU trace messages in a region of shared system >> +memory. The device acts as a coresight sink device and the >> +corresponding trace generators (ETM) are attached as source devices. >> + >> +Sysfs files and directories >> +--------------------------- >> + >> +The SMB devices appear on the existing coresight bus alongside other >> +devices:: >> + >> + $# ls /sys/bus/coresight/devices/ >> + ultra_smb0 ultra_smb1 ultra_smb2 ultra_smb3 >> + >> +The ``ultra_smb<N>`` names SMB device associated with SCCL.:: >> + >> + $# ls /sys/bus/coresight/devices/ultra_smb0 >> + enable_sink mgmt >> + $# ls /sys/bus/coresight/devices/ultra_smb0/mgmt >> + buf_size buf_status read_pos write_pos >> + >> +Key file items are: >> + >> + * ``read_pos``: Shows the value on the read pointer register. >> + * ``write_pos``: Shows the value on the write pointer register. >> + * ``buf_status``: Shows the value on the status register. >> + BIT(0) is zero value which means the buffer is empty. >> + * ``buf_size``: Shows the buffer size of each device. >> + >> +Firmware Bindings >> +----------------- >> + >> +The device is only supported with ACPI. Its binding describes device >> +identifier, resource information and graph structure. >> + >> +The device is identified as ACPI HID "HISI03A1". Device resources are allocated >> +using the _CRS method. Each device must present two base address; the first one >> +is the configuration base address of the device, the second one is the 32-bit >> +base address of shared system memory. >> + >> +Example:: >> + >> + Device(USMB) { \ >> + Name(_HID, "HISI03A1") \ >> + Name(_CRS, ResourceTemplate() { \ >> + QWordMemory (ResourceConsumer, , MinFixed, MaxFixed, NonCacheable, \ >> + ReadWrite, 0x0, 0x95100000, 0x951FFFFF, 0x0, 0x100000) \ >> + QWordMemory (ResourceConsumer, , MinFixed, MaxFixed, Cacheable, \ >> + ReadWrite, 0x0, 0x50000000, 0x53FFFFFF, 0x0, 0x4000000) \ >> + }) \ >> + Name(_DSD, Package() { \ >> + ToUUID("ab02a46b-74c7-45a2-bd68-f7d344ef2153"), \ >> + /* Use CoreSight Graph ACPI bindings to describe connections topology */ >> + Package() { \ >> + 0, \ >> + 1, \ >> + Package() { \ >> + 1, \ >> + ToUUID("3ecbc8b6-1d0e-4fb3-8107-e627f805c6cd"), \ >> + 8, \ >> + Package() {0x8, 0, \_SB.S00.SL11.CL28.F008, 0}, \ >> + Package() {0x9, 0, \_SB.S00.SL11.CL29.F009, 0}, \ >> + Package() {0xa, 0, \_SB.S00.SL11.CL2A.F010, 0}, \ >> + Package() {0xb, 0, \_SB.S00.SL11.CL2B.F011, 0}, \ >> + Package() {0xc, 0, \_SB.S00.SL11.CL2C.F012, 0}, \ >> + Package() {0xd, 0, \_SB.S00.SL11.CL2D.F013, 0}, \ >> + Package() {0xe, 0, \_SB.S00.SL11.CL2E.F014, 0}, \ >> + Package() {0xf, 0, \_SB.S00.SL11.CL2F.F015, 0}, \ >> + } \ >> + } \ >> + }) \ >> + } > This doc LGTM, thanks. > > For this doc, > > Reviewed-by: Bagas Sanjaya <bagasdotme(a)gmail.com> Thanks for your comments. Best regards, Junhao.

2 years, 4 months

by Jinlong Mao

Hi James & Mike, With this patch "[PATCH] coresight: cti: Fix hang in cti_disable_hw()", runtime PM calls are removed in cti_enable_hw/cti_disable_hw. There will be register access issue when write 1 to enable sysfs node of CTI directly as clock is not enabled for accessing CTI registers. echo 1 > cti0/enable static ssize_t enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) Is there fix for the enable_store case ? Thanks Jinlong Mao

2 years, 4 months

[PATCH v5 0/6] coresight: syscfg: Extend configfs for config load

by Mike Leach

This set extends the configfs support to allow loading and unloading of configurations as binary files via configfs. Additional attributes - load and unload are provided to in the /config/cs-syscfg subsytem base group to implement the load functionality. Routines to generate binary configuration files are supplied in ./tools/coresight. Example generator and reader applications are provided. Tools may be cross compiled or built for use on host system. Documentation is updated to describe feature usage. Changes since v4: 1) Update coresight/next - 6.1-rc3 2) Update to lockdep fixes to avoid read lock race in configfs. Changes since v3: 1) Rebase & tested on coresight/next - 5.19-rc3 - which includes the fix patch for earlier configfs works. 2) Lockdep investigations resulted in re-design of some of the code accessing configfs. 3) moved load and unload attributes to root of cs-syscfg. (Mathieu) 4) Additional minor fixes suggested by Mathieu. 5) Memory for configfs loaded and unloaded configurations is now explicitly freed. 6) LOCKDEP nesting fix for configfs base code (fs/configfs/dir.c) Changes since v2: 1) Rebased & tested on coresight/next - 5.18-rc2 2) Moved coresight config generator and reader programs from samples to tools/coresight. Docs updated to match. (suggested by Mathieu) 3) userspace builds now use userspace headers from tools/... 4) Other minor fixes from Mathieu's review. Changes since v1: 1) Rebased to coresight/next - 5.16-rc1 with previous coresight config set applied. 2) Makefile.host fixed to default to all target. Mike Leach (6): coresight: configfs: Update memory allocation / free for configfs elements coresight: configfs: Add in functionality for load via configfs coresight: configfs: Add in binary attributes to load files coresight: configfs: Modify config files to allow userspace use coresight: tools: Add config file write and reader tools Documentation: coresight: docs for config load via configfs .../trace/coresight/coresight-config.rst | 202 +++++- MAINTAINERS | 1 + drivers/hwtracing/coresight/Makefile | 2 +- .../coresight/coresight-config-file.c | 583 ++++++++++++++++++ .../coresight/coresight-config-file.h | 139 +++++ .../hwtracing/coresight/coresight-config.h | 27 + .../coresight/coresight-syscfg-configfs.c | 361 +++++++++-- .../coresight/coresight-syscfg-configfs.h | 4 + .../hwtracing/coresight/coresight-syscfg.c | 137 +++- .../hwtracing/coresight/coresight-syscfg.h | 6 +- tools/coresight/Makefile | 52 ++ tools/coresight/coresight-cfg-bufw.c | 309 ++++++++++ tools/coresight/coresight-cfg-bufw.h | 26 + tools/coresight/coresight-cfg-example1.c | 62 ++ tools/coresight/coresight-cfg-example2.c | 95 +++ tools/coresight/coresight-cfg-examples.h | 22 + tools/coresight/coresight-cfg-file-gen.c | 61 ++ tools/coresight/coresight-cfg-file-read.c | 227 +++++++ tools/coresight/coresight-config-uapi.h | 76 +++ 19 files changed, 2339 insertions(+), 53 deletions(-) create mode 100644 drivers/hwtracing/coresight/coresight-config-file.c create mode 100644 drivers/hwtracing/coresight/coresight-config-file.h create mode 100644 tools/coresight/Makefile create mode 100644 tools/coresight/coresight-cfg-bufw.c create mode 100644 tools/coresight/coresight-cfg-bufw.h create mode 100644 tools/coresight/coresight-cfg-example1.c create mode 100644 tools/coresight/coresight-cfg-example2.c create mode 100644 tools/coresight/coresight-cfg-examples.h create mode 100644 tools/coresight/coresight-cfg-file-gen.c create mode 100644 tools/coresight/coresight-cfg-file-read.c create mode 100644 tools/coresight/coresight-config-uapi.h -- 2.17.1

2 years, 4 months

[PATCH v14 0/2] Add support for UltraSoc System Memory Buffer

by Junhao He

Add support for UltraSoc System Memory Buffer. 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@huawei.com/ 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@huawei.com/ 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@huawei.com/ 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@huawei.com/ 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@h… 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@h… 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@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@hu… 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@hu… 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@hu… 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@hu… 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 .../sysfs-bus-coresight-devices-ultra_smb | 31 + .../trace/coresight/ultrasoc-smb.rst | 83 +++ drivers/hwtracing/coresight/Kconfig | 12 + drivers/hwtracing/coresight/Makefile | 1 + drivers/hwtracing/coresight/ultrasoc-smb.c | 658 ++++++++++++++++++ drivers/hwtracing/coresight/ultrasoc-smb.h | 129 ++++ 6 files changed, 914 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

2 years, 5 months

[PATCH 0/5] perf: cs-etm: Print auxtrace info even if OpenCSD isn't linked

by James Clark

The auxtrace info header can be useful for debugging, and at the moment it's possible to record a file without OpenCSD linked but not view the header even though it should be possible to do. This patchset tidies up some of the related functions and improves some of the error messages before making the above possible in the last commit. Testing done: * Compiled on x86 and Arm both with and without CORESIGHT=1 * Ran the Coresight tests Applies to perf/core (0c3852adae8) James Clark (5): perf: cs-etm: Print unknown header version as an error perf: cs-etm: Remove unused stub methods perf: cs-etm: Tidy up auxtrace info header printing perf: cs-etm: Cleanup cs_etm__process_auxtrace_info() perf: cs-etm: Print auxtrace info even if OpenCSD isn't linked tools/perf/util/Build | 1 + tools/perf/util/cs-etm-base.c | 174 ++++++++++++++++++++++++++++ tools/perf/util/cs-etm.c | 208 +++------------------------------- tools/perf/util/cs-etm.h | 46 ++------ 4 files changed, 200 insertions(+), 229 deletions(-) create mode 100644 tools/perf/util/cs-etm-base.c -- 2.25.1

2 years, 5 months

[GIT PULL v2] coresight: updates for v6.2

by Suzuki K Poulose

Hi Greg, Please find the updated pull request with coresight updates to v6.2. Kindly consider pulling. Changes: - Fix empty lines around "Fixes" tag in the CTI Fix. Thanks Suzuki The following changes since commit 30a0b95b1335e12efef89dd78518ed3e4a71a763: Linux 6.1-rc3 (2022-10-30 15:19:28 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v6.2 for you to fetch changes up to c767c34740132ffc478226864a7461493cdc2413: coresight: etm4x: fix repeated words in comments (2022-11-28 18:29:53 +0000) ---------------------------------------------------------------- coresight: Update for v6.2 CoreSight updatesfor v6.2 includes : - Support for ETMv4 probing on hotplugged CPUs - Fix TRBE driver for cpuhp state refcounting - Fix CTI driver NULL pointer dereferencing - Fix comment for repeated word Signed-off-by: Suzuki K Poulose <suzuki.poulose(a)arm.com> ---------------------------------------------------------------- Jilin Yuan (1): coresight: etm4x: fix repeated words in comments Mike Leach (1): coresight: cti: Fix null pointer error on CTI init before ETM Tamas Zsoldos (1): coresight: etm4x: add CPU hotplug support for probing Yang Shen (1): coresight: trbe: remove cpuhp instance node before remove cpuhp state drivers/hwtracing/coresight/coresight-cti-core.c | 2 +- drivers/hwtracing/coresight/coresight-etm4x-core.c | 155 +++++++++++++++------ drivers/hwtracing/coresight/coresight-trbe.c | 1 + 3 files changed, 116 insertions(+), 42 deletions(-)

2 years, 5 months

Re: [GIT PULL] coresight: updates for v6.2

by Suzuki K Poulose

Hi Greg On 28/11/2022 18:17, Greg KH wrote: > On Mon, Nov 28, 2022 at 03:17:35PM +0000, Suzuki K Poulose wrote: >> Hi Greg, >> >> Please find the coresight updates for Linux v6.2. Kindly consider pulling. >> >> Suzuki >> >> >> The following changes since commit 30a0b95b1335e12efef89dd78518ed3e4a71a763: >> >> Linux 6.1-rc3 (2022-10-30 15:19:28 -0700) >> >> are available in the Git repository at: >> >> git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v6.2 > > I get the following error when trying to push this out: > > Commit: bd7e9cef2137 ("coresight: cti: Fix null pointer error on CTI init before ETM") > Fixes tag: Fixes: 23722fb46725 ("coresight: Fix possible deadlock with lock dependency") > Has these problem(s): > - empty lines surround the Fixes tag Apologies. Will fix it. Is there a way to detect these issues at my end to avoid these issues ? I would be happy to improve the filtering at my side to save your cycles. Thanks Suzuki > > Please fix up and resend. > > thanks, > > greg k-h

2 years, 5 months

[GIT PULL] coresight: updates for v6.2

by Suzuki K Poulose

Hi Greg, Please find the coresight updates for Linux v6.2. Kindly consider pulling. Suzuki The following changes since commit 30a0b95b1335e12efef89dd78518ed3e4a71a763: Linux 6.1-rc3 (2022-10-30 15:19:28 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v6.2 for you to fetch changes up to 4ce71fdc8325936fd0d9ee819b8b18e1fc09bb2e: coresight: etm4x: fix repeated words in comments (2022-11-28 14:56:50 +0000) ---------------------------------------------------------------- coresight: Update for v6.2 CoreSight updatesfor v6.2 includes : - Support for ETMv4 probing on hotplugged CPUs - Fix TRBE driver for cpuhp state refcounting - Fix CTI driver NULL pointer dereferencing - Fix comment for repeated word Signed-off-by: Suzuki K Poulose <suzuki.poulose(a)arm.com> ---------------------------------------------------------------- Jilin Yuan (1): coresight: etm4x: fix repeated words in comments Mike Leach (1): coresight: cti: Fix null pointer error on CTI init before ETM Tamas Zsoldos (1): coresight: etm4x: add CPU hotplug support for probing Yang Shen (1): coresight: trbe: remove cpuhp instance node before remove cpuhp state drivers/hwtracing/coresight/coresight-cti-core.c | 2 +- drivers/hwtracing/coresight/coresight-etm4x-core.c | 155 +++++++++++++++------ drivers/hwtracing/coresight/coresight-trbe.c | 1 + 3 files changed, 116 insertions(+), 42 deletions(-)

2 years, 5 months

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