On Thu, Nov 03, 2011 at 10:25:18PM +0000, Alan Cox wrote:
The ioremap for stolen RAM is about 8MB - we do actually need that mapped for the console framebuffer. The GTT tables are pretty small (64K or so) and the rest of the GTT space if ever used doesn't get an ioremap.
It's a bit different to the i915 world because the CPU cannot indirect via the GTT but must go directly.
Ok, that makes sense. Fyi I'll try to go through the other patches in the coming days, but might take a while. -Daniel