On 04/22/2015 06:40 PM, Mathieu Poirier wrote:
> From: Pratik Patel <pratikp@xxxxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxxxx>
> Signed-off-by: Kaixu Xia <xiakaixu@xxxxxxxxxx>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> ---
> .../ABI/testing/sysfs-bus-coresight-devices-etm4x | 28 +
> drivers/hwtracing/coresight/Kconfig | 10 +
> drivers/hwtracing/coresight/Makefile | 1 +
> drivers/hwtracing/coresight/coresight-etm4x.c | 833 +++++++++++++++++++++
> drivers/hwtracing/coresight/coresight-etm4x.h | 391 ++++++++++
> 5 files changed, 1263 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
> create mode 100644 drivers/hwtracing/coresight/coresight-etm4x.c
> create mode 100644 drivers/hwtracing/coresight/coresight-etm4x.h
>
> 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 000000000000..a4b623871ca0
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
> @@ -0,0 +1,28 @@
> +What: /sys/bus/coresight/devices/<memory_map>.etm/enable_source
> +Date: April 2015
> +KernelVersion: 4.01
> +Contact: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> +Description: (RW) Enable/disable tracing on this specific trace entiry.
^
entry
> + Enabling a source implies the source has been configured
> + properly and a sink has been identidifed for it. The path
^
identified
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