Failed to pin framebuffer with oom error during dm automic commit

[Liang, Prike]

Hello everyone ,

During the GPGPU high loading Abaqus case will encounter failed to pin framebuffer with error -12 when perform
dm_plane_helper_prepare_fb as the SWDEV-177756 described. That seems can't evict enough memory for TTM_PL_VRAM
more type .Now add debug patch for tracing  the definite issue point  and during that time any insight well be welcomed .

Thanks,
Prike

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