Kevin D. Kissell 0db34215c7 [MIPS] SMTC: Interrupt mask backstop hack ...

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: Ralf Baechle <ralf@linux-mips.org>

2007-07-12 17:41:17 +01:00

4.4 KiB

Raw Blame History

View Raw