The following patch is needed to properly wire the TLB
entries on the newer 8xx processors. I think it will work
on all of them with sufficient entries to allow the pinning.
Don't do this on an 823 or 850.
-- Dan
--- linux-2.6.11.5/arch/ppc/kernel/head_8xx.S 2005-03-19
01:34:56.000000000 -0500
+++ linux-2.6-tlbpin/arch/ppc/kernel/head_8xx.S 2005-05-07
00:57:32.000000000 -0400
@@ -663,7 +663,7 @@
tlbia /* Invalidate all TLB entries */
#ifdef CONFIG_PIN_TLB
lis r8, MI_RSV4I at h
- ori r8, r8, 0x1c00
+ ori r8, r8, 0x1f00
#else
li r8, 0
#endif
@@ -671,7 +671,7 @@
#ifdef CONFIG_PIN_TLB
lis r10, (MD_RSV4I | MD_RESETVAL)@h
- ori r10, r10, 0x1c00
+ ori r10, r10, 0x1f00
mr r8, r10
#else
lis r10, MD_RESETVAL at h
