diff options
| author | Anshuman Khandual <[email protected]> | 2022-01-25 19:50:37 +0530 |
|---|---|---|
| committer | Suzuki K Poulose <[email protected]> | 2022-03-11 10:07:11 +0000 |
| commit | 3a828845ae35626c2c8de4c46f5c602c25bd122d (patch) | |
| tree | 70ddf0d0dbfc8b43c1539465fc8b55a7b587e5c0 /tools/perf/scripts/python/syscall-counts.py | |
| parent | f209e9fe5bd7614b30b050f2095e80b77b99c333 (diff) | |
coresight: trbe: Work around the trace data corruption
TRBE implementations affected by Arm erratum #1902691 might corrupt trace
data or deadlock, when it's being written into the memory. Workaround this
problem in the driver, by preventing TRBE initialization on affected cpus.
The firmware must have disabled the access to TRBE for the kernel on such
implementations. This will cover the kernel for any firmware that doesn't
do this already. This just updates the TRBE driver as required.
Cc: Catalin Marinas <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Suzuki Poulose <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Suzuki K Poulose <[email protected]>
Signed-off-by: Anshuman Khandual <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions