diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2009-05-08 18:42:08 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2009-05-08 18:42:08 +0000 |
| commit | 7b358d538e466ebcf6cfb38854d5c956a796334c (patch) | |
| tree | f30b203bb8a8ac08b80af1f76efece5030048902 /sys/arch/sgi/include/param.h | |
| parent | d5d82b7603a15d62361a97e81cd7c3ab892b78f5 (diff) | |
Add a new page freelist, to which memory suitable for 32-bit dma on
xbridge(4) is assigned. Then, make bus_dmamem_alloc() allocate from this
range only.
This is transparent on O2, and makes sure the bus_dma memory address
will fit in the 2GB direct map of xbridge(4) chips - this is necessary for
PCI devices which do not handle 64 bit dma addresses.
Diffstat (limited to 'sys/arch/sgi/include/param.h')
0 files changed, 0 insertions, 0 deletions