[PATCH v3 18/21] powerpc/8xx: _PMD_PRESENT already set in level 1 entries
From: Christophe Leroy <hidden>
Date: 2014-09-17 16:38:18
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
When a PMD entry is valid, _PMD_PRESENT is set. Therefore, forcing that bit during TLB loading is useless. Signed-off-by: Christophe Leroy <redacted> --- Changes in v2: - None Changes in v3: - 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
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1.7.1