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Add support for HWS (hardware scheduler). It is disabled by default.
The sched_mode module param can be used to enable it.

Each context has multiple command queues with different priorities and
HWS enables priority based execution on the HW/FW side.

The driver in HWS mode has to send a couple additional messages to
initialize HWS and describe command queue priorities.
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513120431.3187212-7-jacek.lawrynowicz@linux.intel.com