linux_dsm_epyc7002/drivers/hwtracing
Suzuki K Poulose 8a4bc4f195 coresight: tmc-etr: Check if non-secure access is enabled
CoreSight TMC-ETR must have the non-secure invasive debug access
enabled for use by self-hosted tracing. Without it, there is no
point in enabling the ETR. So, let us check it in the TMC_AUTHSTATUS
register and fail the probe if it is disabled.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-7-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03 22:01:16 +02:00
..
coresight coresight: tmc-etr: Check if non-secure access is enabled 2019-09-03 22:01:16 +02:00
intel_th Merge 5.3-rc7 into char-misc-next 2019-09-02 19:30:09 +02:00
stm stm class: Fix a double free of stm_source_device 2019-08-28 22:29:01 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00