freebsd-nq/sys/dev/cadence
Mitchell Horne 04d2d2d7fd cgem: improve usage of busdma(9) KPI
BUS_DMA_NOCACHE should only be used when one needs to guarantee the
created mapping has uncached memory attributes, usually as a result
of buggy hardware. Normal use cases should pass BUS_DMA_COHERENT, to
create an appropriate mapping based on the flags passed to
bus_dma_tag_create().

This should have no functional change, since the DMA tags in this driver
are created without the BUS_DMA_COHERENT flag.

Reported by:	mmel
Reviewed by:	mmel, Thomas Skibo <thomas-bsd@skibo.net>
MFC after:	3 days
2021-02-18 17:17:41 -04:00
..
if_cgem_hw.h
if_cgem.c cgem: improve usage of busdma(9) KPI 2021-02-18 17:17:41 -04:00