Daniel Vetter <daniel@xxxxxxxx> writes: > I just figured that -modesetting would be the simplest domenstration > vehicle, since the vulkan patches don't look ready yet. I need fully > reviewed&tested userspace before we can land any kernel stuff. Doing > the quick modesetting conversion would unblock. I've provided a patch for the modesetting driver and the preliminary bits are merged, leaving only a fairly straightforward addition of the new ioctls to that code. I'm not sure how to make more progress there at this point; that code would need testing, and it requires a hand-patched kernel to test. I also posted IGT tests for the new functionality, again, getting those reviewed and tested depends on someone willing to build a patched kernel. Dave Airlie has started trying to get that done. >> (regarding FIRST_PIXEL_OUT): >> >> If the timestamp is the only important thing, it sounds like the kernel >> already satisfies that, which is cool. > > Would be good to confirm that. If it's not, we have a problem. Michel Dänzer says that the timestamp provided is computed to be first_pixel_out for all hardware. Given that, I suggest we specify that in the documentation and remove this bit from the API. Seem reasonable? -- -keith
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