diff options
Diffstat (limited to 'sys/alpha/include/bus.h')
-rw-r--r-- | sys/alpha/include/bus.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/alpha/include/bus.h b/sys/alpha/include/bus.h index 8c6d324..4fe1286 100644 --- a/sys/alpha/include/bus.h +++ b/sys/alpha/include/bus.h @@ -569,6 +569,10 @@ typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t); * nsegments: Number of discontinuities allowed in maps. * maxsegsz: Maximum size of a segment in the map. * flags: Bus DMA flags. + * lockfunc: An optional function to handle driver-defined lock + * operations. + * lockfuncarg: An argument that will be passed to lockfunc in addition + * to the lock operation. * dmat: A pointer to set to a valid dma tag should the return * value of this function indicate success. */ |