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-rw-r--r--arch/powerpc/kernel/cpu_setup_power.S8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index a283b6442b26..18b5b9cf8e37 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -135,8 +135,12 @@ __init_HFSCR:
blr
__init_TLB:
- /* Clear the TLB */
- li r6,128
+ /*
+ * Clear the TLB using the "IS 3" form of tlbiel instruction
+ * (invalidate by congruence class). P7 has 128 CCs, P8 has 512
+ * so we just always do 512
+ */
+ li r6,512
mtctr r6
li r7,0xc00 /* IS field = 0b11 */
ptesync