On Wed, Nov 30, 2022 at 08:26:48PM +0100, Noralf Trønnes via B4 Submission Endpoint wrote: > 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 <formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter>
