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[ Upstream commit7872997c04] Running 3D applications with SVGA_FORCE_HOST_BACKED=1 or using an ancient version of mesa was broken because the buffer was pinned in VMW_BO_DOMAIN_SYS and could not be moved to VMW_BO_DOMAIN_MOB during validation. The compat_shader buffer should not pinned. Fixes:668b206601("drm/vmwgfx: Stop using raw ttm_buffer_object's") Signed-off-by: Ian Forbes <ian.forbes@broadcom.com> Reviewed-by: Maaz Mombasawala <maaz.mombasawala@broadcom.com> Signed-off-by: Zack Rusin <zack.rusin@broadcom.com> Link: https://lore.kernel.org/r/20250429203427.1742331-1-ian.forbes@broadcom.com Signed-off-by: Sasha Levin <sashal@kernel.org>