Hi, On 14 February 2018 at 13:50, Sean Paul <seanpaul@xxxxxxxxxxxx> wrote: > On Wed, Feb 14, 2018 at 07:22:53AM -0500, Rob Clark wrote: >> On Wed, Feb 14, 2018 at 3:30 AM, Daniel Stone <daniel@xxxxxxxxxxxxx> wrote: >> > This one I guess you can't get around though. Can they still run from >> > the one plane, or do you secretly consume two planes? >> >> I think it is still the case, like mdp5, that you need two hw pipes.. >> but actually it gets more crazy, since there are some cases where two >> planes could share a hw pipe. > > Right. Large fbs might require 2 pipes, and multiple overlapping or adjacent small fbs > can be serviced with 1 pipe. I didn't know about using a single pipe for multiple framebuffers. That's quite special indeed. I think virtualising probably makes sense in that case: rather than just getting around limitations, it's seeming like more of a VC4 situation where they just really aren't actually planes in the first place. Cheers, Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
