Re: Writeback Assumptions for XRGB

2022-03-08 Thread Maxime Ripard
Hi! On Tue, Mar 08, 2022 at 10:26:24AM +0200, Pekka Paalanen wrote: > On Fri, 4 Mar 2022 15:46:07 +0100 > Maxime Ripard wrote: > > > Indeed, while the input buffer uses 0xff for the X component, we'll get > > back 0x00 from the hardware, and thus the hashes are not identical. We > > can force th

Re: Writeback Assumptions for XRGB

2022-03-08 Thread Pekka Paalanen
On Fri, 4 Mar 2022 15:46:07 +0100 Maxime Ripard wrote: > Indeed, while the input buffer uses 0xff for the X component, we'll get > back 0x00 from the hardware, and thus the hashes are not identical. We > can force the hardware to always set it to 0xff, but that doesn't seem > right. It would make

Writeback Assumptions for XRGB

2022-03-04 Thread Maxime Ripard
Hi, The writeback-check-output is currently broken on vc4. It's in part due to a bug in the kernel driver that results in a page flip timeout, but once that's fixed the test is still broken, and I'm not sure how to solve this one. Indeed, the frame comparison is done between the (XRGB) buffe