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| author | Takashi Iwai <tiwai@suse.de> | 2014-12-03 09:38:03 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-12-03 09:38:58 +0100 |
| commit | 2e3d4de1bd80b2f205aab0ed0a25daef464ab91c (patch) | |
| tree | 7caa6a353f9ff9f5e196ed01bbbfce1c8c5ec8ae /arch/mips/mm/tlbex.c | |
| parent | 492a7ea0a6d3cc9c16ad5f8af832ed4278225b2e (diff) | |
| parent | 009d0431c3914de64666bec0d350e54fdd59df6a (diff) | |
Merge tag 'v3.18-rc7' into for-next
... for allowing more cleanups of hda_intel.c driver-caps where both
upstream and for-next contain the changes.
Diffstat (limited to 'arch/mips/mm/tlbex.c')
| -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; } |