The IPC driver is used to send and receive messages to/from firmware
running on the VPU.

The only supported IPC message format is Job Submission Model (JSM)
defined in vpu_jsm_api.h header.
Co-developed-by: NAndrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
Signed-off-by: NAndrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
Co-developed-by: NKrystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: NKrystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: NJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: NOded Gabbay <ogabbay@kernel.org>
Reviewed-by: NJeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117092723.60441-5-jacek.lawrynowicz@linux.intel.com