[MIPS] SMTC: Interrupt mask backstop hack

[safe/jmp/linux-2.6] / arch / mips / kernel / entry.S

diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 686249c..e29598a 100644 (file)
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -84,6 +84,7 @@ FEXPORT(restore_all)                  # restore full frame
        LONG_S  sp, TI_REGS($28)
        jal     deferred_smtc_ipi
        LONG_S  s0, TI_REGS($28)
+#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 /* Re-arm any temporarily masked interrupts not explicitly "acked" */
        mfc0    v0, CP0_TCSTATUS
        ori     v1, v0, TCSTATUS_IXMT
@@ -110,6 +111,7 @@ FEXPORT(restore_all)                        # restore full frame
        _ehb
        xor     t0, t0, t3
        mtc0    t0, CP0_TCCONTEXT
+#endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */
 #endif /* CONFIG_MIPS_MT_SMTC */
        .set    noat
        RESTORE_TEMP