diff options
-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, | |||
1872 | uasm_l_smp_pgtable_change(l, *p); | 1872 | uasm_l_smp_pgtable_change(l, *p); |
1873 | #endif | 1873 | #endif |
1874 | iPTE_LW(p, wr.r1, wr.r2); /* get even pte */ | 1874 | iPTE_LW(p, wr.r1, wr.r2); /* get even pte */ |
1875 | if (!m4kc_tlbp_war()) | 1875 | if (!m4kc_tlbp_war()) { |
1876 | build_tlb_probe_entry(p); | 1876 | build_tlb_probe_entry(p); |
1877 | if (cpu_has_htw) { | ||
1878 | /* race condition happens, leaving */ | ||
1879 | uasm_i_ehb(p); | ||
1880 | uasm_i_mfc0(p, wr.r3, C0_INDEX); | ||
1881 | uasm_il_bltz(p, r, wr.r3, label_leave); | ||
1882 | uasm_i_nop(p); | ||
1883 | } | ||
1884 | } | ||
1877 | return wr; | 1885 | return wr; |
1878 | } | 1886 | } |
1879 | 1887 | ||