• Kevin D. Kissell's avatar
    [MIPS] SMTC: Interrupt mask backstop hack · 0db34215
    Kevin D. Kissell authored
    To support multiple TC microthreads acting as "CPUs" within a VPE,
    VPE-wide interrupt mask bits must be specially manipulated during
    interrupt handling. To support legacy drivers and interrupt controller
    management code, SMTC has a "backstop" to track and if necessary restore
    the interrupt mask. This has some performance impact on interrupt service
    overhead. Disable it only if you know what you are doing.
    Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    0db34215
irq.h 2.27 KB