REG_CPU_STATE_ADDR
tmp = readl_relaxed(REG_CPU_STATE_ADDR + cpu * 4);
writel_relaxed(tmp, REG_CPU_STATE_ADDR + cpu * 4);
tmp = readl_relaxed(REG_CPU_STATE_ADDR + cpu * 4);
writel_relaxed(tmp, REG_CPU_STATE_ADDR + cpu * 4);