diff options
| author | Madhavan Srinivasan <maddy@linux.ibm.com> | 2024-02-21 15:46:23 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-02-21 23:11:00 +1100 |
| commit | b22ea627225b53ec7ce25c19d6df9fa8217d1643 (patch) | |
| tree | 3e55159e1e1a86fa35aebe8f39ba398ed9c4d5a6 | |
| parent | c2ed087ed35ca569d8179924ba560be248c758e5 (diff) | |
powerpc/perf: Power11 Performance Monitoring support
Base enablement patch to register performance monitoring
hardware support for Power11. Most of fields are copied
from power10_pmu struct for power11_pmu struct.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240221044623.1598642-2-mpe@ellerman.id.au
| -rw-r--r-- | arch/powerpc/perf/core-book3s.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/perf/internal.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/perf/power10-pmu.c | 27 |
3 files changed, 30 insertions, 0 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index b7ff680cde96..6f0d46c53027 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -2593,6 +2593,8 @@ static int __init init_ppc64_pmu(void) return 0; else if (!init_power10_pmu()) return 0; + else if (!init_power11_pmu()) + return 0; else if (!init_ppc970_pmu()) return 0; else diff --git a/arch/powerpc/perf/internal.h b/arch/powerpc/perf/internal.h index 4c18b5504326..a70ac471a5a5 100644 --- a/arch/powerpc/perf/internal.h +++ b/arch/powerpc/perf/internal.h @@ -10,4 +10,5 @@ int __init init_power7_pmu(void); int __init init_power8_pmu(void); int __init init_power9_pmu(void); int __init init_power10_pmu(void); +int __init init_power11_pmu(void); int __init init_generic_compat_pmu(void); diff --git a/arch/powerpc/perf/power10-pmu.c b/arch/powerpc/perf/power10-pmu.c index 9b5133e361a7..62a68b6b2d4b 100644 --- a/arch/powerpc/perf/power10-pmu.c +++ b/arch/powerpc/perf/power10-pmu.c @@ -634,3 +634,30 @@ int __init init_power10_pmu(void) return 0; } + +static struct power_pmu power11_pmu; + +int __init init_power11_pmu(void) +{ + unsigned int pvr; + int rc; + + pvr = mfspr(SPRN_PVR); + if (PVR_VER(pvr) != PVR_POWER11) + return -ENODEV; + + /* Set the PERF_REG_EXTENDED_MASK here */ + PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_31; + + power11_pmu = power10_pmu; + power11_pmu.name = "Power11"; + + rc = register_power_pmu(&power11_pmu); + if (rc) + return rc; + + /* Tell userspace that EBB is supported */ + cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB; + + return 0; +} |