On 04/06/2018 09:34 AM, Michel Dänzer wrote: > On 2018-04-06 02:39 PM, Andrey Grodzovsky wrote: >>> Am 06.04.2018 um 13:23 schrieb Andrey Grodzovsky: >>>> Me and Alex talked to a BIOS guys yesterday exactly about that, a >>>> dynamic way to query this info from BIOS, he just told us to reserve >>>> 32M to cover 4K display. > How about reading DCE registers? I can try and consult with DAL on this. > > >> At least the second patch somehow addresses the memory waste concern, >> the reservation will be very transient, during late init the BO will get >> freed. > Sure, I don't think anybody's concerned about that. My concerns are: > > * In the cases where we still only reserve 256K, there will likely still > be artifacts during driver initialization. > > * 32M might still not be enough in some cases, e.g. 5K / 8K displays. I see your point, as I said above, will again try to find out if there is still a way to know the BIOS FB size. Andrey > > > P.S. Please don't top-post. >
