i was attempting to use the latest version of userspace program, perf,
for my testing. however, i realize that this may not be appropriate as
perf should ideally be paired with the corresponding version of the
Linux kernel.
with newer kernels, we no longer need to specify specific cortex events
to retrieve status information. in contrast, with version 5.15, we had
to explicitly request the events we were interested in from the perf
list to obtain the desired status.
to achieve results consistent with the newer kernel, it’s not only
necessary to apply the patch mentioned in #2, but the perf tool also
needs to be updated. since we can specify events in version 5.15 to
retrieve status information, I think no additional changes are required
for 5.15.
** Changed in: linux-mtk (Ubuntu)
Status: In Progress => Won't Fix
** Changed in: linux-mtk (Ubuntu Jammy)
Status: In Progress => Won't Fix
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https://bugs.launchpad.net/bugs/2060063
Title:
PMU counters for Cortex-A78 not working correctly
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