This patchset covers three variations on GEM objects being dirtied by means of CPU writes.
The first is simple: an object has been entirely filled with data via CPU writes, and the whole object is therefore dirty (i.e. backing store is out-of-date w.r.t. current contents). For these cases, marking the individual pages at the point of writing would not be a win. The second patch covers cases where only one page is actually written; these are candidates for a future optimisation where only the specific page is marked dirty (only applicable to objects with page-tracked backing store). The third deals with a couple of other apparently missed cases where there might be an opportunity for updates to be dropped. _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
