From: Scott Wood <scott@tyr.buserror.net>
To: <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] powerpc/booke-64: fix tlbsrx. path in bolted tlb handler
Date: Tue, 12 Jun 2012 17:02:32 -0500 [thread overview]
Message-ID: <20120612220232.GA17228@tyr.buserror.net> (raw)
It was branching to the cleanup part of the non-bolted handler,
which would have been bad if there were any chips with tlbsrx.
that use the bolted handler.
Signed-off-by: Scott Wood <scott@tyr.buserror.net>
---
arch/powerpc/mm/tlb_low_64e.S | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S
index ff672bd..efe0f33 100644
--- a/arch/powerpc/mm/tlb_low_64e.S
+++ b/arch/powerpc/mm/tlb_low_64e.S
@@ -128,7 +128,7 @@ BEGIN_MMU_FTR_SECTION
*/
PPC_TLBSRX_DOT(0,r16)
ldx r14,r14,r15 /* grab pgd entry */
- beq normal_tlb_miss_done /* tlb exists already, bail */
+ beq tlb_miss_done_bolted /* tlb exists already, bail */
MMU_FTR_SECTION_ELSE
ldx r14,r14,r15 /* grab pgd entry */
ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_USE_TLBRSRV)
@@ -184,6 +184,7 @@ ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_USE_TLBRSRV)
mtspr SPRN_MAS7_MAS3,r15
tlbwe
+tlb_miss_done_bolted:
TLB_MISS_STATS_X(MMSTAT_TLB_MISS_NORM_OK)
tlb_epilog_bolted
rfi
--
1.7.5.4
next reply other threads:[~2012-06-12 22:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-12 22:02 Scott Wood [this message]
2012-09-07 4:23 ` [PATCH] powerpc/booke-64: fix tlbsrx. path in bolted tlb handler Benjamin Herrenschmidt
[not found] ` <504A4C43.3040206@freescale.com>
2012-09-07 23:03 ` Scott Wood
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