diff options
| author | Chen Lin <chen45464546@163.com> | 2022-11-04 06:21:21 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-11-15 11:47:28 +0000 |
| commit | f87f6e5b4539639460ab105e597e5190c9b2500f (patch) | |
| tree | 0a124ad2b8d1c112899d569c259bb4e11d92e148 /lib/mpi/mpiutil.c | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
iommu/arm-smmu: Warn once when the perfetcher errata patch fails to apply
Default reset value of secure banked register SMMU_sACR.cache_lock is 1.
If it is not been set to 0 by secure software(eg: atf), the non-secure
linux cannot clear ARM_MMU500_ACTLR_CPRE bit. In this situation,
the prefetcher errata is not applied successfully, warn once.
Signed-off-by: Chen Lin <chen45464546@163.com>
Link: https://lore.kernel.org/r/20221103222121.3051-1-chen45464546@163.com
[will: Tweaked wording of diagnostic]
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions