From 2e1cdfe184b5202d51e0611d7a051e2bea303946 Mon Sep 17 00:00:00 2001 From: Pratik Patel Date: Wed, 13 May 2015 10:34:09 -0600 Subject: 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 Signed-off-by: Kaixu Xia Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman --- .../ABI/testing/sysfs-bus-coresight-devices-etm4x | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x (limited to 'Documentation') 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..d1e513991fcb --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x @@ -0,0 +1,15 @@ +What: /sys/bus/coresight/devices/.etm/enable_source +Date: April 2015 +KernelVersion: 4.01 +Contact: Mathieu Poirier +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/.etm/cpu +Date: April 2015 +KernelVersion: 4.01 +Contact: Mathieu Poirier +Description: (R) The CPU this tracing entity is associated with. -- cgit v1.2.3-58-ga151