This is really a frame buffer driver. The newer version of the driver also needs another commit that updates the virtual memory and this commit is in the development branch on top of the driver commit. Without the virtual memory commit, it's necessary to change the kernel configuration item CONSISTENT_START to be a value of 0xFF000000. author Ilya Yanok <yanok@emcraft.com> Thu, 12 Feb 2009 13:20:53 +0000 (13:20 +0000) commit fd4a3286d2aaef2d3e2878c83a682ff4af480293 tree cfd83178d8eb681a5db2b153ac82494fed3412ab tree | snapshot parent 9f1f881ce8dfb06b4282006c5b370a978eb9b0aa commit | diff powerpc: Rework dma-noncoherent to use generic vmalloc layer This patch rewrites consistent dma allocations support to use vmalloc layer to allocate virtual memory space from vmalloc pool and get rid of CONFIG_CONSISTENT_{START,SIZE}. This greatly simplifies the code by effectively removing a custom allocator we had for virtual space.