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Subject[PATCH v2 18/19] powerpc/8xx: _PMD_PRESENT already set in level 1 entries
Date
When a PMD entry is valid, _PMD_PRESENT is set. Therefore, forcing that bit
during TLB loading is useless.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

---
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


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