powerpc: Shield code specific to 64-bit server processors
This is a random collection of added ifdef's around portions of
code that only mak sense on server processors. Using either
CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate.
This is meant to make the future merging of Book3E 64-bit support
easier.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index dd6c7a3..461c916 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -420,6 +420,9 @@
* so flushing the hash table is the only sane way to make sure
* that no hash entries are covering that removed bridge area
* while still allowing other busses overlapping those pages
+ *
+ * Note: If we ever support P2P hotplug on Book3E, we'll have
+ * to do an appropriate TLB flush here too
*/
if (bus->self) {
struct resource *res = bus->resource[0];
@@ -427,8 +430,10 @@
pr_debug("IO unmapping for PCI-PCI bridge %s\n",
pci_name(bus->self));
+#ifdef CONFIG_PPC_STD_MMU_64
__flush_hash_table_range(&init_mm, res->start + _IO_BASE,
res->end + _IO_BASE + 1);
+#endif
return 0;
}