diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-11-23 19:51:50 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-11-24 21:08:57 +1100 |
| commit | 0a4b4327ce867e3ac1b3ad15f4d2b686b516b3a2 (patch) | |
| tree | 5862cf843d3d5613ac58bbbd28d7acb57523823a /tools/perf/scripts/python | |
| parent | powerpc/64s: Always set PMU control registers to frozen/disabled when not in use (diff) | |
| download | linux-0a4b4327ce867e3ac1b3ad15f4d2b686b516b3a2.tar.gz linux-0a4b4327ce867e3ac1b3ad15f4d2b686b516b3a2.zip | |
powerpc/64s: Implement PMU override command line option
It can be useful in simulators (with very constrained environments)
to allow some PMCs to run from boot so they can be sampled directly
by a test harness, rather than having to run perf.
A previous change freezes counters at boot by default, so provide
a boot time option to un-freeze (plus a bit more flexibility).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211123095231.1036501-13-npiggin@gmail.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions