diff options
| author | Visa Hankala <visa@cvs.openbsd.org> | 2021-06-26 10:48:00 +0000 |
|---|---|---|
| committer | Visa Hankala <visa@cvs.openbsd.org> | 2021-06-26 10:48:00 +0000 |
| commit | 0a15989cf6491beb098233c5f3fe31c644f79cb0 (patch) | |
| tree | 81334675a1d7ba63def9fdc701134673b0cf7775 /sys/dev/fdt/sxits.c | |
| parent | edd53914a870e9587f150327c582d1427eccf5ab (diff) | |
cad: Implement 64-bit DMA mode
This lets the driver utilize 64-bit DMA on hardware that supports it.
Currently, riscv64 does not constrain DMA-reachable memory to the 32-bit
range. This caused memory errors with cad(4) on machines that have RAM
above 4GB in the physical address space.
Prompted by Mickael Torres
OK kettenis@
Diffstat (limited to 'sys/dev/fdt/sxits.c')
0 files changed, 0 insertions, 0 deletions