The DT field of riscv,pmu for opensbi can be found on: https://github.com/riscv-software-src/opensbi/blob/master/docs/pmu_support.md The value can be found in the R1S0 version of C906 documentation: https://dl.linux-sunxi.org/D1/Xuantie_C906_R1S0_User_Manual.pdf The meaning of T-HEAD events can be found in this patch: https://lore.kernel.org/linux-perf-users/IA1PR20MB4953DD82D0116EC291C21777BBE2A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx The patch above also provides documentation for T-HEAD events and a example that shows how to use perf with T-HEAD events. >On Sat, Aug 26, 2023 at 04:38:53PM +0800, Inochi Amaoto wrote: >> D1 has several pmu events supported by opensbi. >> These events can be used by perf for profiling. >> >> Signed-off-by: Inochi Amaoto <inochiama@xxxxxxxxxxx> > >Could you please include a link to some documentation as to where these >values came from? I know several people have had some trouble with >understanding the pmu DT stuff & having some documentation would make >this an in-tree end-to-end example. > >Thanks, >Conor. >
