Commit 5bfae679 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/vf: Custom GuC reset 



The VF drivers can't trigger real GuC firmware reset using GDRST
register, but for the VF drivers it is sufficient to send VF_RESET
message to reset any VF specific state maintained by the GuC.
Use our existing VF bootstrap function as VF_RESET is part of it.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarPiotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604212231.1416-4-michal.wajdeczko@intel.com
parent d9cf98e7

drivers/gpu/drm/xe/xe_guc.c

+3 −0
Original line number Diff line number Diff line
@@ -430,6 +430,9 @@ int xe_guc_reset(struct xe_guc *guc) 


	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);



	if (IS_SRIOV_VF(gt_to_xe(gt)))

		return xe_gt_sriov_vf_bootstrap(gt);



	xe_mmio_write32(gt, GDRST, GRDOM_GUC);



	ret = xe_mmio_wait32(gt, GDRST, GRDOM_GUC, 0, 5000, &gdrst, false);