From: Gavin Shan <shangw@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Subject: [PATCH] powerpc/mm: Use tlbiel for 4KB pages
Date: Thu, 18 Apr 2013 13:33:55 +0800 [thread overview]
Message-ID: <1366263235-7787-1-git-send-email-shangw@linux.vnet.ibm.com> (raw)
The firmware should have supplied correct information for the kernel
to figure out the page size array, which is traced by mmu_psize_defs[].
Otherwise, the kernel will fail back to use solely 4KB page size
and copy mmu_psize_defaults_old[] over to mmu_psize_defs[]. However,
the "tlbiel" isn't enabled in mmu_psize_defaults_old[].
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
arch/powerpc/mm/hash_utils_64.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 2d4a20c..8675ae5 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -130,7 +130,7 @@ static struct mmu_psize_def mmu_psize_defaults_old[] = {
.sllp = 0,
.penc = 0,
.avpnm = 0,
- .tlbiel = 0,
+ .tlbiel = 1,
},
};
--
1.7.5.4
next reply other threads:[~2013-04-18 5:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 5:33 Gavin Shan [this message]
2013-04-18 6:33 ` [PATCH] powerpc/mm: Use tlbiel for 4KB pages Benjamin Herrenschmidt
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