Commit facd3887 authored by Matt Roper's avatar Matt Roper Committed by José Roberto de Souza
Browse files

drm/xe: Stash GMD_ID value in xe_gt 



Although we've stored the major and minor versions for graphics/media in
xe_device, it will be simpler to implement the uapi version query if we
also stash the raw register value in the GT itself.

Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240123204454.246788-4-jose.souza@intel.com


Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
parent 83ef64eb

drivers/gpu/drm/xe/xe_gt.c

+6 −0
Original line number Diff line number Diff line
@@ -399,6 +399,12 @@ static int gt_fw_domain_init(struct xe_gt *gt) 
	/* Initialize CCS mode sysfs after early initialization of HW engines */

	xe_gt_ccs_mode_sysfs_init(gt);



	/*

	 * Stash hardware-reported version.  Since this register does not exist

	 * on pre-MTL platforms, reading it there will (correctly) return 0.

	 */

	gt->info.gmdid = xe_mmio_read32(gt, GMD_ID);



	err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);

	XE_WARN_ON(err);

	xe_device_mem_access_put(gt_to_xe(gt));

drivers/gpu/drm/xe/xe_gt_types.h

+2 −0
Original line number Diff line number Diff line
@@ -117,6 +117,8 @@ struct xe_gt { 
		 * hwconfig blob.

		 */

		u64 __engine_mask;

		/** @info.gmdid: raw GMD_ID value from hardware */

		u32 gmdid;

	} info;



	/**