Commit 185f93f3 authored by Daniele Ceraolo Spurio's avatar Daniele Ceraolo Spurio Committed by Rodrigo Vivi
Browse files

drm/xe/huc: Don't re-auth HuC if it's already authenticated 



On newer platforms the HuC survives reset and stays authenticated, so no
need to re-authenticate it.

Signed-off-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent b77d8b5c

drivers/gpu/drm/xe/xe_huc.c

+6 −0
Original line number Diff line number Diff line
@@ -83,6 +83,12 @@ int xe_huc_auth(struct xe_huc *huc) 


	xe_assert(xe, !xe_uc_fw_is_running(&huc->fw));



	/* On newer platforms the HuC survives reset, so no need to re-auth */

	if (xe_mmio_read32(gt, HUC_KERNEL_LOAD_INFO) & HUC_LOAD_SUCCESSFUL) {

		xe_uc_fw_change_status(&huc->fw, XE_UC_FIRMWARE_RUNNING);

		return 0;

	}



	if (!xe_uc_fw_is_loaded(&huc->fw))

		return -ENOEXEC;