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authorHuacai Chen <chenhc@lemote.com>2014-07-29 14:54:40 +0800
committerRalf Baechle <ralf@linux-mips.org>2014-07-30 14:34:25 +0200
commit8393c524a25609a30129e4a8975cf3b91f6c16a5 (patch)
tree9e27cd7faaa7af490fc05c77705da25c79948634 /arch/mips
parentf98fd44bebac6aa203eaf8a433d3a3ded374bae5 (diff)
downloadop-kernel-dev-8393c524a25609a30129e4a8975cf3b91f6c16a5.zip
op-kernel-dev-8393c524a25609a30129e4a8975cf3b91f6c16a5.tar.gz
MIPS: tlbex: Fix a missing statement for HUGETLB
In commit 2c8c53e28f1 (MIPS: Optimize TLB handlers for Octeon CPUs) build_r4000_tlb_refill_handler() is modified. But it doesn't compatible with the original code in HUGETLB case. Because there is a copy & paste error and one line of code is missing. It is very easy to produce a bug with LTP's hugemmap05 test. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Binbin Zhou <zhoubb@lemote.com> Cc: <stable@vger.kernel.org> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/7496/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/mm/tlbex.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index e80e10b..343fe0f 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1299,6 +1299,7 @@ static void build_r4000_tlb_refill_handler(void)
}
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
uasm_l_tlb_huge_update(&l, p);
+ UASM_i_LW(&p, K0, 0, K1);
build_huge_update_entries(&p, htlb_info.huge_pte, K1);
build_huge_tlb_write_entry(&p, &l, &r, K0, tlb_random,
htlb_info.restore_scratch);
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