linux_dsm_epyc7002/drivers/hwtracing
Suzuki K Poulose 1900947215 coresight: etm4x: Handle accesses to TRCSTALLCTLR
commit f72896063396b0cb205cbf0fd76ec6ab3ca11c8a upstream.

TRCSTALLCTLR register is only implemented if

   TRCIDR3.STALLCTL == 0b1

Make sure the driver touches the register only it is implemented.

Link: https://lore.kernel.org/r/20210127184617.3684379-1-suzuki.poulose@arm.com
Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@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/20210201181351.1475223-32-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:37 +01:00
..
coresight coresight: etm4x: Handle accesses to TRCSTALLCTLR 2021-03-04 11:38:37 +01:00
intel_th intel_th: pci: Add Alder Lake-P support 2021-01-27 11:55:15 +01:00
stm stm class: Fix module init return on allocation failure 2021-01-27 11:55:15 +01:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00