diff options
| author | Kevin D. Kissell <kevink@mips.com> | 2007-07-12 16:21:08 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-07-12 17:41:17 +0100 |
| commit | 0db34215c7e0ef618e7b29fbf271194ca5434f8e (patch) | |
| tree | 261d8cd77fad2d661157ee5e5bde8e3fdc8c96b9 /arch/mips/pci | |
| parent | bd0765098bf22eb8b1319f649a4c3301b40ec04c (diff) | |
| download | linux-0db34215c7e0ef618e7b29fbf271194ca5434f8e.tar.bz2 | |
[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>
Diffstat (limited to 'arch/mips/pci')
0 files changed, 0 insertions, 0 deletions