This function is intented to check for KMD, platform or debug options
and return the number of engines that can actually be used.
Next patches will implement i915/xe_engines_is_guc_semaphore_functional()
functions.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25233>
A "dance" is required with this uAPI, first we need to ask KMD what is
the size of the giving query id, then memory needs to be allocated to
match that size and then query again with the memory address set and
at this time Xe KMD will copy the query data to memory.
This dance was being duplicated in xe_engine_get_info() and
anv_xe_physical_device_get_parameters() and the next patch will also
use it in Iris, so here adding it common/xe and re-using as much
as possible.
There is one more implementation of this function in intel/dev but
due to how libs are linked intel/dev can't depend on to intel/common.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26325>
MTL and newer platforms on Xe kmd will have engines with gt_id != 0.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22477>
Xe engine is not equal to hardware engine, it is just a submission
queue that will be scheduled in the hardware engine during process
time slice of the GPU.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22058>
