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>>               op->map.dumpable = flags & DRM_XE_VM_BIND_FLAG_DUMPABLE; >> -            op->map.pat_index = pat_index; >> +            if (op->map.is_cpu_addr_mirror) >> +                op->map.pat_index = 0; > > Is this meant as a safe default or is this just a dummy value? If this > actually gets programmed in the hw, maybe XE_CACHE_WB would be better > here? That way we know exactly what it does from driver POV for a given > platform. Index zero for example might have no host coherency (might > then need WC on host). In some world index zero could enable compression. +1 > >> +            else >> +                op->map.pat_index = pat_index; >>               op->map.invalidate_on_bind = >>                   __xe_vm_needs_clear_scratch_pages(vm, flags); >>           } else if (__op->op == DRM_GPUVA_OP_PREFETCH) { >