Subject: [PATCH v4 18/21] powerpc/8xx: _PMD_PRESENT already set in level 1 entries

From: Christophe Leroy <[email-masked]>
Date: Fri, 19 Sep 2014 10:36:09 +0200 (CEST)

When a PMD entry is valid, _PMD_PRESENT is set. Therefore, forcing that bit
during TLB loading is useless.

Signed-off-by: Christophe Leroy <[email-masked]>

---
Changes in v2:
- None

Changes in v3:
- None

Changes in v4:
- None

 arch/powerpc/kernel/head_8xx.S |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 48d3de8..bb7c816 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -340,7 +340,6 @@ InstructionTLBMiss:
 	/* We have a pte table, so load the MI_TWC with the attributes
 	 * for this "segment."
 	 */
-	ori	r11,r11,1		/* Set valid bit */
 	MTSPR_CPU6(SPRN_MI_TWC, r11, r3)	/* Set segment attributes */
 	mfspr	r11, SPRN_SRR0	/* Get effective address of fault */
 	/* Extract level 2 index */
@@ -417,7 +416,6 @@ DataStoreTLBMiss:
 	rlwimi	r10, r11, 0, 0, 32 - PAGE_SHIFT - 1	/* Add level 2 base */
 	lwz	r10, 0(r10)	/* Get the pte */
 
-	ori	r11, r11, 1	/* Set valid bit in physical L2 page */
 	/* Insert the Guarded flag into the TWC from the Linux PTE.
 	 * It is bit 27 of both the Linux PTE and the TWC (at least
 	 * I got that right :-).  It will be better when we can put
-- 
1.7.1