TXx9_MAX_IR
for (i = 0; i < TXx9_MAX_IR; i++) {
if ((unsigned int)irc_irq >= TXx9_MAX_IR)
return TXX9_IRQ_BASE + (csr & (TXx9_MAX_IR - 1));
} txx9irq[TXx9_MAX_IR] __read_mostly;