diff options
| author |   Atish Patra <atish.patra@wdc.com> | 2022-02-18 16:46:58 -0800 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2022-03-21 15:01:09 -0700 |
| commit | 4905ec2fb7e6421c14c9fb7276f5aa92f60f2b98 (patch) | |
| tree | cf945df15c4ac3604682bad5a2247141d6af7ade /include/linux/perf | |
| parent | RISC-V: Add perf platform driver based on SBI PMU extension (diff) | |
| download | linux-dev-4905ec2fb7e6421c14c9fb7276f5aa92f60f2b98.tar.xz linux-dev-4905ec2fb7e6421c14c9fb7276f5aa92f60f2b98.zip | |
RISC-V: Add sscofpmf extension support
The sscofpmf extension allows counter overflow and filtering for
programmable counters. Enable the perf driver to handle the overflow
interrupt. The overflow interrupt is a hart local interrupt.
Thus, per cpu overflow interrupts are setup as a child under the root
INTC irq domain.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'include/linux/perf')
| -rw-r--r-- | include/linux/perf/riscv_pmu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/perf/riscv_pmu.h b/include/linux/perf/riscv_pmu.h index 0f226948c0ca..46f9b6fe306e 100644 --- a/include/linux/perf/riscv_pmu.h +++ b/include/linux/perf/riscv_pmu.h @@ -29,6 +29,8 @@ struct cpu_hw_events { /* currently enabled events */ int n_events; + /* Counter overflow interrupt */ + int irq; /* currently enabled events */ struct perf_event *events[RISCV_MAX_COUNTERS]; /* currently enabled hardware counters */ |