Messages in this thread | | | Date | Fri, 3 Jul 2020 13:33:47 +0100 | From | Will Deacon <> | Subject | Re: [PATCH 0/3] arm64: perf: add support for Cortex-A55/A75/A76 |
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On Fri, Jun 19, 2020 at 06:44:37PM +0800, Jisheng Zhang wrote: > The Cortex-A55/A75/A76 use some implementation defined perf events. > Add the support. > > Jisheng Zhang (3): > arm64: perf: add support for Cortex-A55 > arm64: perf: add support for Cortex-A75 > arm64: perf: add support for Cortex-A76 > > arch/arm64/kernel/perf_event.c | 49 +++++++++++++++++++++++++++++++--- > 1 file changed, 45 insertions(+), 4 deletions(-)
Do we really need this? I'd prefer for this stuff to live in userspace now that the perf tool has supported JSON event descriptions for a while, and the in-kernel driver advertises the architected events advertised by PMCEID*.
Will
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