> drivers/perf/riscv_pmu_sbi.c | 19 ++++++++++++++----- > +config THEAD_CUSTOM_PMU > + bool "T-Head custom PMU support" > + depends on RISCV_ALTERNATIVE && RISCV_PMU_SBI > + default y > + help > + The T-Head C9xx cores implement a PMU overflow extension very > + similar to the core SSCOFPMF extension. > + > + This will patch the overflow CSR and handle the non-standard > + behaviour via the regular SBI PMU driver and interface. > + > + If you don't know what to do here, say "Y". This is a < 20 line diff to the pmu driver, is it really worth adding having config options for these two non standard PMU implementations?
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