Commit dba7d17d authored by Daniele Ceraolo Spurio's avatar Daniele Ceraolo Spurio
Browse files

drm/xe/vf: Fix guc_info debugfs for VFs 

The guc_info debugfs attempts to read a bunch of registers that the VFs
doesn't have access to, so fix it by skipping the reads.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4775


Signed-off-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: default avatarLukasz Laguna <lukasz.laguna@intel.com>
Link: https://lore.kernel.org/r/20250423173908.1571412-1-daniele.ceraolospurio@intel.com
parent f64cf7b6

drivers/gpu/drm/xe/xe_guc.c

+23 −21
Original line number Diff line number Diff line
@@ -1510,6 +1510,7 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p) 


	xe_uc_fw_print(&guc->fw, p);



	if (!IS_SRIOV_VF(gt_to_xe(gt))) {

		fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);

		if (!fw_ref)

			return;
@@ -1533,6 +1534,7 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p) 
		}



		xe_force_wake_put(gt_to_fw(gt), fw_ref);

	}



	drm_puts(p, "\n");

	xe_guc_ct_print(&guc->ct, p, false);