[PATCH 3/3] 8xx: Use LARGE pages for kernel RAM.

[Joakim Tjernlund]

Use the new _PAGE_PSE to map all kernel RAM with 8 MB TLBs

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund at transmode.se>
---
 arch/ppc/mm/pgtable.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/ppc/mm/pgtable.c b/arch/ppc/mm/pgtable.c
index 866ae43..56e847e 100644
--- a/arch/ppc/mm/pgtable.c
+++ b/arch/ppc/mm/pgtable.c
@@ -298,7 +298,9 @@ void __init mapin_ram(void)
 		/* On the MPC8xx, we want the page shared so we
 		 * don't get ASID compares on kernel space.
 		 */
-		f = _PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_SHARED | _PAGE_HWEXEC;
+		f = _PAGE_PSE | _PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_SHARED | _PAGE_HWEXEC;
+		if (_PAGE_PSE)
+			f |= _PAGE_WRENABLE;
 #if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH)
 		/* Allows stub to set breakpoints everywhere */
 		f |= _PAGE_WRENABLE;
-- 
1.7.3.4