This is awesome news Alan. Given that bulk of the work is now done, it should be a relatively straight-forward thing to take this work into illumos… I hope.
I might even take a look at doing so myself, gratis, just to shut the entire rest of the whiners up. On Mon, Aug 22, 2016 at 10:09 AM, Alan Coopersmith < alan.coopersm...@oracle.com> wrote: > On 08/22/16 12:57 AM, Joshua M. Clulow wrote: > >> If you need to port graphics bits from FreeBSD, or OpenBSD, or from >> somewhere else, just start working on it! Kernel development isn't a >> dark art, or a secret club with handshakes and lodge hats; it requires >> tenacity, and dogged persistence, but it's all just software. >> > > Or even from Solaris, as we've made our i915 KMS port available as well: > https://hg.java.net/hg/solaris-x11~x-s12-clone/file/default/ > open-src/kernel > > If you'd like to learn more before diving into the code, you could start by > watching some of the talks from the Solaris & BSD porters at X.Org > conferences > in recent years - see https://www.x.org/wiki/Events/XDC2015/Program/ and > the > previous XDC programs listed on https://www.x.org/wiki/Events/History/ . > There's also some in-depth blogs from the Linux i915 KMS maintainer at > http://blog.ffwll.ch/tags/ which may be useful. > > One thing you may hear in several places is "It's easier/better to port > your > kernel to KMS than to port KMS to your kernel" - which is a way of saying > you'll want to add interfaces to the kernel that KMS needs, even if they're > just a thin shim over the native interfaces, since a successful port will > not be a "do it once and done forever" thing, but will need ongoing long > term > maintenance since graphics and graphics devices continue to evolve at a > much > faster rate than things like storage devices or network devices. (Just > look > at the "new things in drm/i915" posts every couple months on the blog > above.) > > That's unfortunately the part left out of the above Solaris code release > which > you may have an easier time finding in the open source kernels from the > BSDs, > but our maintainer gave one of the talks mentioned above and can answer > some > questions about it. (But if the question is "Can you publish the rest of > the > source?", the answer is still "Sorry, no we can't.") > > Alternatively, you could learn to use Coccinelle < > http://coccinelle.lip6.fr/> > and then write a series of API mapping transforms you apply to every new > code > version you bring in, but in either case, far more of the DRI/KMS porting > work > lies in things like memory management and matching up kernel/driver API's > than > in actual graphics programming. > > -alan- > ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
