On Fri, 30 May 2008 11:13:23 +1000 Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> wrote: > > Currently, this is the only interface I know that can do native-endian > > accesses, so if you take it away, I'm gonna need an alternative > > interface that doesn't do byteswapping. > > Are you aware that these also don't provide any ordering guarantee ? Yes, but I am not aware of any alternative. I think the drivers I've written have the necessary barriers (or dma ops with implicit barriers) that they don't actually depend on any DMA vs. MMIO ordering guarantees. I hope MMIO vs. MMIO ordering is guaranteed though? Haavard -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
