On Thu, Jul 26, 2012 at 11:49:32AM +0100, Chris Wilson wrote: > Several functions of the GPU have the restriction that differing memory > domains cannot be placed next to each other (as the GPU may prefetch > beyond the end of one domain and hang as it crosses into the other > domain). We use the facility of the drm_mm to mark ranges with a > particular color that corresponds to the cache attributes of those pages > in order to prevent allocating adjacent blocks of differing memory > types. > > v2: Rebase ontop of drm_mm coloring v2. > v3: Fix rebinding existing gtt_space and add a verification routine. > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> Ok, history fixed. Can you please double-check that I haven't botched it? /me hangs head in shame over not noticing that nothing assings anything to obj->color ... -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48
