Re: [PATCH] [POWERPC] Improve (in|out)_beXX() asm code

Alan Cox
2008-05-20T22:27:47Z

> It looks like we rely on -fno-strict-aliasing to prevent reordering
> ordinary memory accesses (such as to DMA descriptors) past the I/O

DMA descriptors in main memory are dependant on cache behaviour anyway
and the dma_* operators should be the ones enforcing the needed behaviour.

Alan