On Thu, 2009-05-14 at 08:00 -0600, Grant Likely wrote: > > All of this doesn't actually affect the driver code at all. It's all > handled by the kernel and the DMA apis. What it does affect is > multiplatform kernels. The DMA behaviour is set at compile time, not > run time, depending on the setting of CONFIG_NON_COHERENT_CACHE (see > arch/powerpc/platforms/Kconfig.cputype). A kernel which has it on > won't run properly on a platform which has it off, and visa-versa.
We are close to the point where we can make this a runtime option though, by just having a different set of dma_ops hooked in. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
