diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2019-07-18 15:11:37 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-19 13:20:23 +1000 |
| commit | 4f7e0babbc7c46fc0db4f5c14fe96bf6f4d69502 (patch) | |
| tree | 549d02dccf2d289f3cc689b4880a6cbadc94b03c /arch/powerpc/platforms/powernv/pci.h | |
| parent | 56090a3902c80c296e822d11acdb6a101b322c52 (diff) | |
powerpc/iommu: Allow bypass-only for DMA
POWER8 and newer support a bypass mode which maps all host memory to
PCI buses so an IOMMU table is not always required. However if we fail to
create such a table, the DMA setup fails and the kernel does not boot.
This skips the 32bit DMA setup check if the bypass is selected.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190718051139.74787-3-aik@ozlabs.ru
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci.h')
0 files changed, 0 insertions, 0 deletions