Files
Pu Lehui c625154993 drivers/perf: riscv: Align errno for unsupported perf event
RISC-V perf driver does not yet support PERF_TYPE_BREAKPOINT. It would
be more appropriate to return -EOPNOTSUPP or -ENOENT for this type in
pmu_sbi_event_map. Considering that other implementations return -ENOENT
for unsupported perf types, let's synchronize this behavior. Due to this
reason, a riscv bpf testcases perf_skip fail. Meanwhile, align that
behavior to the rest of proper place.

Signed-off-by: Pu Lehui <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Fixes: 9b3e150e31 ("RISC-V: Add a simple platform driver for RISC-V legacy perf")
Fixes: 16d3b1af09 ("perf: RISC-V: Check standard event availability")
Fixes: e999143459 ("RISC-V: Add perf platform driver based on SBI PMU extension")
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
2024-10-01 02:47:39 -07:00
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