Hi, On 23 April 2016 at 03:08, Rob Herring <r...@kernel.org> wrote: > On Fri, Apr 22, 2016 at 6:32 PM, Emil Velikov <emil.l.veli...@gmail.com> > wrote: >> Can we take a look at the GBM gralloc as well. One thing that worries >> me is that (most likely) you are requesting/creating a bo without >> GBM_BO_USE_WRITE whist using MAP + CPU write UNMAP. If you do set the >> USE_WRITE flag, you're getting a dumb buffer, which I'm not sure how >> well is going to work. > > I'm not using GBM_BO_USE_WRITE and that is not a condition for mapping > given that flag is tied to cursors (according to comments) and gives > dumb buffers. Also of note, if gralloc flags are set for r/w often, > then I request a linear buffer. Here's the gralloc side:
Right, I wouldn't take GBM_BO_USE_WRITE to have much of an effect on mappings, as it pessimises allocation like you say. Cheers, Daniel _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
