Den 30.11.2022 20.26, skrev Noralf Trønnes via B4 Submission Endpoint: > Hi, > > I have started to look at igt for testing and want to use CRC tests. To > implement support for this I need to move away from the simple kms > helper. > > When looking around for examples I came across Thomas' nice shadow > helper and thought, yes this is perfect for drm/gud. So I'll switch to > that before I move away from the simple kms helper. > > The async framebuffer flushing code path now uses a shadow buffer and > doesn't touch the framebuffer when it shouldn't. I have also taken the > opportunity to inline the synchronous flush code path and make this the > default flushing stategy. > > Noralf. > > Cc: Maxime Ripard <mripard@xxxxxxxxxx> > Cc: Thomas Zimmermann <tzimmermann@xxxxxxx> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx > Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx> > > --- > Changes in v2: > - Drop patch (Thomas): > drm/gem: shadow_fb_access: Prepare imported buffers for CPU access > - Use src as variable name for iosys_map (Thomas) > - Prepare imported buffer for CPU access in the driver (Thomas) > - New patch: make sync flushing the default (Thomas) > - Link to v1: https://lore.kernel.org/r/20221122-gud-shadow-plane-v1-0-9de3afa3383e@xxxxxxxxxxx > > --- > Noralf Trønnes (6): > drm/gud: Fix UBSAN warning > drm/gud: Don't retry a failed framebuffer flush > drm/gud: Split up gud_flush_work() > drm/gud: Prepare buffer for CPU access in gud_flush_work() > drm/gud: Use the shadow plane helper > drm/gud: Enable synchronous flushing by default > Applied to drm-misc-next, thanks for reviewing! Noralf.
