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| author | Nicholas Piggin <npiggin@gmail.com> | 2023-05-30 23:43:13 +1000 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2023-06-10 10:19:24 -0300 |
| commit | c29b070418c79fa8e09d17e4b52f3ffddd393764 (patch) | |
| tree | a60b9f82f4dc07c01b8fd98363ac82e72bbfe718 /scripts/xml-preprocess-test.py | |
| parent | fd7abfab662a2bd8bbf63ad52d4b58243cd9c409 (diff) | |
| download | focaccia-qemu-c29b070418c79fa8e09d17e4b52f3ffddd393764.tar.gz focaccia-qemu-c29b070418c79fa8e09d17e4b52f3ffddd393764.zip | |
target/ppc: PMU implement PERFM interrupts
The PMU raises a performance monitor exception (causing an interrupt when MSR[EE]=1) when MMCR0[PMAO] is set, and lowers it when clear. Wire this up and implement the interrupt delivery for books. Linux perf record can now collect PMI-driven samples. fire_PMC_interrupt is renamed to perfm_alert, which matches a bit closer to the new terminology used in the ISA and distinguishes the alert condition (e.g., counter overflow) from the PERFM (or EBB) interrupts. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20230530134313.387252-2-npiggin@gmail.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
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