diff options
| author | Michael Walle <michael@walle.cc> | 2020-03-07 00:44:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 12:02:00 +0300 |
| commit | a092ab25fdaa445b821f5959e458350696fce44c (patch) | |
| tree | 431e93b785812c748c02977bf355d438253d256d /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 159381df1442f3c781ae3de05b5c6130fd4ee058 (diff) | |
| download | linux-a092ab25fdaa445b821f5959e458350696fce44c.tar.xz | |
tty: serial: fsl_lpuart: fix DMA mapping
Use the correct device to request the DMA mapping. Otherwise the IOMMU
doesn't get the mapping and it will generate a page fault.
The error messages look like:
[ 19.012140] arm-smmu 5000000.iommu: Unhandled context fault: fsr=0x402, iova=0xbbfff800, fsynr=0x3e0021, cbfrsynra=0x828, cb=9
[ 19.023593] arm-smmu 5000000.iommu: Unhandled context fault: fsr=0x402, iova=0xbbfff800, fsynr=0x3e0021, cbfrsynra=0x828, cb=9
This was tested on a custom board with a LS1028A SoC.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20200306214433.23215-3-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions