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| author | Huacai Chen <chenhc@lemote.com> | 2014-07-29 14:54:40 +0800 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-09-17 16:55:07 +0200 |
| commit | ac9c2b5ec9758352df308886f87363cdbb3929d7 (patch) | |
| tree | d3790e916a2520a0771c90835dd81eec6cf1a883 /arch | |
| parent | 44058412d0bd644f73b6a2e13d7a8be0f8a4b56d (diff) | |
| download | lwn-ac9c2b5ec9758352df308886f87363cdbb3929d7.tar.gz lwn-ac9c2b5ec9758352df308886f87363cdbb3929d7.zip | |
MIPS: tlbex: Fix a missing statement for HUGETLB
commit 8393c524a25609a30129e4a8975cf3b91f6c16a5 upstream.
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: 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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/mm/tlbex.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 9bb3a9363b06..db7a050f5c2c 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1333,6 +1333,7 @@ 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); |