20 	mb();  in ioread8()
22 	mb();  in ioread8()
29 	mb();  in ioread16()
31 	mb();  in ioread16()
38 	mb();  in ioread32()
40 	mb();  in ioread32()
46 	mb();  in iowrite8()
52 	mb();  in iowrite16()
58 	mb();  in iowrite32()
158 	mb();  in readb()
160 	mb();  in readb()
167 	mb();  in readw()
169 	mb();  in readw()
176 	mb();  in readl()
178 	mb();  in readl()
185 	mb();  in readq()
187 	mb();  in readq()
193 	mb();  in writeb()
199 	mb();  in writew()
205 	mb();  in writel()
211 	mb();  in writeq()
230 	mb();  in readb_relaxed()
236 	mb();  in readw_relaxed()
242 	mb();  in readl_relaxed()
248 	mb();  in readq_relaxed()
511 	mb();  in memcpy_fromio()
566 	mb();  in memcpy_toio()
628 	mb();  in _memset_c_io()