GITS_CREADR
REGISTER_ITS_DESC_UACCESS(GITS_CREADR,
ridx = readl_relaxed(its->base + GITS_CREADR) / sizeof(struct its_cmd_block);
rd_idx = readl_relaxed(its->base + GITS_CREADR);
rd_idx = readl_relaxed(its->base + GITS_CREADR); \
for (i = 0; its_read_u64(GITS_CREADR) != next; i++) {