PerfFilterTable
void __iomem *filter_addr = ioaddr + PerfFilterTable + 2 * 16;
filter_addr = ioaddr + PerfFilterTable + 2 * 16;
writew(0, ioaddr + PerfFilterTable);
writew(0, ioaddr + PerfFilterTable + 4);
writew(0, ioaddr + PerfFilterTable + 8);
void __iomem *setup_frm = ioaddr + PerfFilterTable + i * 16;