tested the diff, my a770 runs both X and Wayland fine with it.
i have never encountered wa_verify error at all

inteldrm0 at pci3 dev 0 function 0 "Intel Arc A770" rev 0x08
drm0 at inteldrm0
inteldrm0: msi, DG2, gen 12
intel_slicemask_from_xehp_dssmask: stub
intel_slicemask_from_xehp_dssmask: stub
i915_resize_lmem_bar: stub
intel_slicemask_from_xehp_dssmask: stub
gsc_init_one: stub
gsc_init_one: stub
inteldrm0: 1920x1080, 32bpp

wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0


Your patch is ok for me. Thank you for your time and effort.