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| author | Nikita Shubin <n.shubin@yadro.com> | 2022-06-28 14:45:55 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-07-06 11:06:24 +0100 |
| commit | 26fabd6d2ffc2812138a613bec84ec72541842e7 (patch) | |
| tree | 2ee64cc4cc7a2e6c7492cfa702def654493837ff /tools/perf/scripts/python/mem-phys-addr.py | |
| parent | 0e35850b341e88055ca11cad74efa464b2159984 (diff) | |
drivers/perf: riscv_pmu_sbi: perf format
Update driver to export formatting and event information to sysfs so it
can be used by the perf user space tools with the syntaxes:
perf stat -e cpu/event=0x05
perf stat -e cpu/event=0x05,firmware=0x1/
63-bit is used to distinguish hardware events from firmware. Firmware
events are defined by "RISC-V Supervisor Binary Interface
Specification".
perf stat -e cpu/event=0x05,firmware=0x1/
is equivalent to
perf stat -e r8000000000000005
Suggested-by: João Mário Domingos <joao.mario@tecnico.ulisboa.pt>
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
Link: https://github.com/riscv-non-isa/riscv-sbi-doc/blob/master/riscv-sbi.adoc
Link: https://lore.kernel.org/r/20220628114625.166665-2-nikita.shubin@maquefel.me
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
0 files changed, 0 insertions, 0 deletions