diff options
| author | Paul Burton <[email protected]> | 2013-11-19 17:30:36 +0000 |
|---|---|---|
| committer | Ralf Baechle <[email protected]> | 2014-03-31 18:17:12 +0200 |
| commit | dab75dd956522ce19403c108f659ea9b339f2559 (patch) | |
| tree | 698c8bf58371ff0928397702efc068bfb848c645 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 3351047f01fe012abbb585b400d1c51b57ed011d (diff) | |
MIPS: Simplify ptrace_getfpregs FPU IR retrieval
All architecturally defined bits in the FPU implementation register
are read only & unchanging. It contains some implementation-defined
bits but the architecture manual states "This bits are explicitly not
intended to be used for mode control functions" which seems to provide
justification for viewing the register as a whole as unchanging. This
being the case we can simply re-use the value we read at boot rather
than having to re-read it later, and avoid the complexity which that
read entails.
Signed-off-by: Paul Burton <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/6147/
Signed-off-by: Ralf Baechle <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions