On 31 January 2012 21:54, Nicolas Pitre <nicolas.pi...@linaro.org> wrote: > On Tue, 31 Jan 2012, Zach Pfeffer wrote: > >> On 31 January 2012 15:01, Nicolas Pitre <nicolas.pi...@linaro.org> wrote: >> > You just can't have it both ways. If you focus on a stable platform >> > then you cannot have the latest features. If you develop new features, >> > it obviously can't be stable. But whatever you do, customers will >> > always ask for both in a single package. >> > >> > I think it is a matter of clearly defining what we do, and also what we >> > don't (and shouldn't) do. Expectations about Linaro cannot be the same >> > as for Ubuntu/Canonical or Android/Google. >> >> That is true., but lets talk nuts and bolts. >> >> What I think would be good for Linaro to do, is to list the features >> of each board it wants to support without regressions and define a set >> of tests against those features. As we improve things, we ensure that >> the core feature set doesn't break. We have the test cases, so we know >> exactly what "break" means. > > Absolutely. This is why the Linaro CI loop is so important. > > [...] >> Then we get to the worst offenders, graphics drivers. These tend to do >> very interesting things with VM tables against alloc_bootmem regions. >> UMM probably won't get used here since it won't give vendors the SoC >> specific, low-level per-page bit twiddling APIs that they need to eke >> out the last drop of graphics performance. These are definitely a >> problem, but if there's anywhere we should be confronting issues it >> would be right here since most of our members feel pain here the most. > > I can't agree more. However there won't be any good solution here > without access to the source code for those graphics drivers. I don't > see any easy way out.
I agree. I've been collecting input from a lot of people around the industry that I'm going to present during ELC at Binary Blobs Attack!! that's going to talk about this explicitly. > > > Nicolas -- Zach Pfeffer Android Platform Team Lead, Linaro Platform Teams Linaro.org | Open source software for ARM SoCs Follow Linaro: http://www.facebook.com/pages/Linaro http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
