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| author | Pratik Patel <pratikp@codeaurora.org> | 2015-05-13 16:34:09 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 18:11:20 (GMT) |
| commit | 2e1cdfe184b5202d51e0611d7a051e2bea303946 (patch) | |
| tree | d400a4689360b0225288056d7205e99dc8d3d815 /Documentation | |
| parent | f5da7cb24b78f2398c80a3ba25438602a68fc3e4 (diff) | |
| download | linux-2e1cdfe184b5202d51e0611d7a051e2bea303946.tar.xz | |
coresight-etm4x: Adding CoreSight ETM4x driver
This driver manages the CoreSight ETMv4 (Embedded Trace Macrocell) IP block
to support HW assisted tracing on ARMv7 and ARMv8 architectures.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x new file mode 100644 index 0000000..d1e5139 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x @@ -0,0 +1,15 @@ +What: /sys/bus/coresight/devices/<memory_map>.etm/enable_source +Date: April 2015 +KernelVersion: 4.01 +Contact: Mathieu Poirier <mathieu.poirier@linaro.org> +Description: (RW) Enable/disable tracing on this specific trace entiry. + Enabling a source implies the source has been configured + properly and a sink has been identidifed for it. The path + of coresight components linking the source to the sink is + configured and managed automatically by the coresight framework. + +What: /sys/bus/coresight/devices/<memory_map>.etm/cpu +Date: April 2015 +KernelVersion: 4.01 +Contact: Mathieu Poirier <mathieu.poirier@linaro.org> +Description: (R) The CPU this tracing entity is associated with. |