4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christophe Leroy <christophe.leroy@xxxxxx>
commit 6d183ca8baec983dc4208ca45ece3c36763df912 upstream.
'nobats' kernel parameter or some options like CONFIG_DEBUG_PAGEALLOC
deny the use of BATS for mapping memory.
This patch makes sure that the specific wii RAM mapping function
takes it into account as well.
Fixes: de32400dd26e ("wii: use both mem1 and mem2 as ram")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Jonathan Neuschafer <j.neuschaefer@xxxxxxx>
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/platforms/embedded6xx/wii.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -104,6 +104,10 @@ unsigned long __init wii_mmu_mapin_mem2(
/* MEM2 64MB@0x10000000 */
delta = wii_hole_start + wii_hole_size;
size = top - delta;
+
+ if (__map_without_bats)
+ return delta;
+
for (bl = 128<<10; bl < max_size; bl <<= 1) {
if (bl * 2 > size)
break;
