powerpc/mm: Add 64TB support
Increase max addressable range to 64TB. This is not tested on
real hardware yet.
Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index f6a2625..1a16ca2 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -56,6 +56,12 @@
*/
_GLOBAL(slb_miss_kernel_load_linear)
li r11,0
+ li r9,0x1
+ /*
+ * for 1T we shift 12 bits more. slb_finish_load_1T will do
+ * the necessary adjustment
+ */
+ rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0
BEGIN_FTR_SECTION
b slb_finish_load
END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)
@@ -85,6 +91,12 @@
_GLOBAL(slb_miss_kernel_load_io)
li r11,0
6:
+ li r9,0x1
+ /*
+ * for 1T we shift 12 bits more. slb_finish_load_1T will do
+ * the necessary adjustment
+ */
+ rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0
BEGIN_FTR_SECTION
b slb_finish_load
END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT)