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| author | David S. Miller <davem@davemloft.net> | 2014-11-29 20:47:48 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-29 20:47:48 -0800 |
| commit | 60b7379dc5b1743427b031cca53e30860a38ada6 (patch) | |
| tree | c0462b8dd188861bd04f36dd31672b7446e35dd8 /arch/mips/mm | |
| parent | a523a5ecc8c6ddceb8f783f600605553e5ad8963 (diff) | |
| parent | 7a5a4f978750756755dc839014e13d1b088ccc8e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/mips/mm')
| -rw-r--r-- | arch/mips/mm/tlbex.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index b5f228e7eae6..e3328a96e809 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1872,8 +1872,16 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l, uasm_l_smp_pgtable_change(l, *p); #endif iPTE_LW(p, wr.r1, wr.r2); /* get even pte */ - if (!m4kc_tlbp_war()) + if (!m4kc_tlbp_war()) { build_tlb_probe_entry(p); + if (cpu_has_htw) { + /* race condition happens, leaving */ + uasm_i_ehb(p); + uasm_i_mfc0(p, wr.r3, C0_INDEX); + uasm_il_bltz(p, r, wr.r3, label_leave); + uasm_i_nop(p); + } + } return wr; } |