summaryrefslogtreecommitdiffstats
path: root/drivers/coresight/coresight-tmc.c
Commit message (Collapse)AuthorAgeFilesLines
* coresight: moving to new "hwtracing" directoryMathieu Poirier2015-04-031-822/+0
| | | | | | | | | | | | | | Keeping drivers related to HW tracing on ARM, i.e coresight, under "drivers/coresight" doesn't make sense when other architectures start rolling out technologies of the same nature. As such creating a new "drivers/hwtracing" directory where all drivers of the same kind can reside, reducing namespace pollution under "drivers/". Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-tmc: Adding a status interface to sysfsMathieu Poirier2015-04-031-0/+56
| | | | | | | | | Knowing the state of various control register is always useful for degging and tuning. As such add an entry in sysfs that expose to userspace the most important registers. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight: fixing compilation warnings picked up by 64bit compilerMathieu Poirier2015-04-031-2/+2
| | | | | | | | Compiling coresight drivers with a 64-bit compiler highlights a couple of formatting issues, which are fixed by this patch. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-tmc: use module_amba_driver to simplify the codeWei Yongjun2015-01-121-11/+1
| | | | | | | | | module_amba_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* coresight-tmc: add CoreSight TMC driverPratik Patel2014-11-071-0/+776
This driver manages CoreSight TMC (Trace Memory Controller) which can act as a link or a sink depending upon its configuration. It can present itself as an ETF (Embedded Trace FIFO) or ETR (Embedded Trace Router). ETF when configured in circular buffer mode acts as a trace collection sink. When configured in HW fifo mode it acts as link. ETR always acts as a sink and can be used to route data to memory allocated in RAM. Signed-off-by: Pratik Patel <pratikp@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
OpenPOWER on IntegriCloud