From: Milton Miller <miltonm@bga.com>
To: linuxppc-dev@ozlabs.org, Kumar Gala <galak@kernel.crashing.org>
Subject: [PATCH] powerpc: remove non-dependent load fsl_booke PTE_64BIT
Date: Fri, 10 Oct 2008 06:56:52 -0500 (CDT) [thread overview]
Message-ID: <patch-fsl-1@bga.com> (raw)
b38fd42ff46a4a31dced8533e8a6e549693500b6 added false dependencys
to order the load of upper and lower halfs of the pte, but only
adjusted whitespace instead of deleting the old load in the iside
handler, letting the hardware see the non-dependent load.
This patch removes the extra load.
Signed-off-by: Milton Miller <miltonm@bga.com>
---
Kumar, I think this is right from my inspection, please review.
Index: next.git/arch/powerpc/kernel/head_fsl_booke.S
===================================================================
--- next.git.orig/arch/powerpc/kernel/head_fsl_booke.S 2008-10-05 02:40:38.000000000 -0500
+++ next.git/arch/powerpc/kernel/head_fsl_booke.S 2008-10-05 02:40:58.000000000 -0500
@@ -658,10 +658,6 @@ interrupt_base:
bne 2f /* Bail if permission mismach */
-#ifdef CONFIG_PTE_64BIT
- lwz r13,0(r12)
-#endif
-
/* Jump to common TLB load point */
b finish_tlb_load
next reply other threads:[~2008-10-10 11:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-10 11:56 Milton Miller [this message]
2008-10-10 13:05 ` [PATCH] powerpc: remove non-dependent load fsl_booke PTE_64BIT Kumar Gala
2008-10-10 13:07 ` Kumar Gala
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