RPI3: vc4/drm crashes

[Kangkook Jee <kangkook.jee@xxxxxxxxx>]

Hi all, 

I installed AGL 5.1.0 on Raspberry Pi 3 board and testing with number of Homescreen App. 
However, I soon get the following error message and the whole GUI freezes. 

[  222.034184] vc4-drm soc:gpu: failed to allocate buffer with size 16777216
[  222.041476] [drm:vc4_bo_create [vc4]] *ERROR* Failed to allocate from CMA:
[  222.048470] [drm]                         kernel:   8100kb BOs (1)
[  222.054816] [drm]                            V3D: 198344kb BOs (186)
[  222.061314] [drm]                     V3D shader:    240kb BOs (60)
[  222.067688] [drm]                           dumb:     32kb BOs (2)
[  222.074023] vc4_v3d 3fc00000.v3d: Failed to allocate memory for tile binning: -12. You may need to enable CMA or give it more memory.

I saw the previous JIRA ticket about the similar issues and those are now close. 

https://jira.automotivelinux.org/browse/SPEC-390

https://jira.automotivelinux.org/browse/SPEC-410

Can anyone help me with this? Thanks a lot!

Regards, Kangkook
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