MSI_MAP
val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));