From: Benjamin Herrenschmidt Date: Sat, 06 Jun 2009 09:32:29 +1000 > >> I tried this. But, with some catch. ‘PAGE_KERNEL_NOCACHE’ seems to be the >> choice for majority of architectures like frv, m32r, sh, x86, etc, as Geert >> mentions below. However, i believe POWERPC defines it as ‘PAGE_KERNEL_NC‘ >> found at arch/powerpc/include/asm/pte-common.h. >> >> Paul/Banjamin, >> Can you please confirm this ? > > Read my reply to Greg. Why the heck are you trying to map memory > non-cacheable in the first place ? I agree, this is extremely fishy. I guess the issue is that the driver wants consistent DMA memory but wants to allocate a huge area vmap() style. {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I