EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL(__iounmap);
+static DEFINE_SPINLOCK(phb_io_lock);
+
void __iomem * reserve_phb_iospace(unsigned long size)
{
void __iomem *virt_addr;
if (phbs_io_bot >= IMALLOC_BASE)
panic("reserve_phb_iospace(): phb io space overflow\n");
+ spin_lock(&phb_io_lock);
virt_addr = (void __iomem *) phbs_io_bot;
phbs_io_bot += size;
+ spin_unlock(&phb_io_lock);
return virt_addr;
}