GSC_PROXY_BUFFER_SIZE
u64 addr_out = addr_in + GSC_PROXY_BUFFER_SIZE;
if (size < sizeof(struct gsc_proxy_msg) || size > GSC_PROXY_BUFFER_SIZE) {
addr_out, GSC_PROXY_BUFFER_SIZE);
gsc->proxy.to_csme = vaddr + GSC_PROXY_BUFFER_SIZE;
#define GSC_PROXY_CHANNEL_SIZE (GSC_PROXY_BUFFER_SIZE * 2)
#define GSC_PROXY_MAX_MSG_SIZE (GSC_PROXY_BUFFER_SIZE - sizeof(struct intel_gsc_mtl_header))