The ioctl DRM_VMW_SYNCCPU may sometimes fail with ERESTART or EBUSY, which
in turn bubbles up to the application as a GL_OUT_OF_MEMORY error.
We are seeing this in glamor, while this does not cause any real issues, it
does pollute the system log.
Retrying DRM_VMW_SYNCCPU fixes this issue.
Reviewed-by: Neha Bhende <neha.bhende@broadcom.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Reviewed-by: Martin Krastev <martin.krastev@broadcom.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29755>
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