Commit f2b81483 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/vf: Don't try to read legacy GuC MMIO notification if VF 



Legacy SOFT_SCRATCH registers are not accessible from the VF. Any
G2H notification posted there will be handled by the PF driver.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarHimal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240405133936.891-4-michal.wajdeczko@intel.com
parent fe4b17c4

drivers/gpu/drm/xe/xe_guc.c

+3 −0
Original line number Diff line number Diff line
@@ -591,6 +591,9 @@ static void guc_handle_mmio_msg(struct xe_guc *guc) 
	struct xe_gt *gt = guc_to_gt(guc);

	u32 msg;



	if (IS_SRIOV_VF(guc_to_xe(guc)))

		return;



	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);



	msg = xe_mmio_read32(gt, SOFT_SCRATCH(15));