Re: [PATCH 3/9] perf: arm_pmu: Remove event index to counter remapping

kernel test robot
2024-06-08T19:38:45Z

Hi Rob,

kernel test robot noticed the following build errors:

[auto build test ERROR on 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0]

url: https://github.com/intel-lab-lkp/linux/commits/Rob-Herring-Arm/perf-arm-Move-32-bit-PMU-drivers-to-drivers-perf/20240608-043509
base: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
patch link: https://lore.kernel.org/r/20240607-arm-pmu-3-9-icntr-v1-3-c7bd2dceff3b%40kernel.org
patch subject: [PATCH 3/9] perf: arm_pmu: Remove event index to counter remapping
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20240609/202406090349.DaD1utFD-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project d7d2d4f53fc79b4b58e8d8d08151b577c3699d4a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240609/202406090349.DaD1utFD-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406090349.DaD1utFD-lkp@intel.com/

All errors (new ones prefixed by >>):

| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6'
27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:99:32: note: previous initialization is here
99 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1'
25 | #define ANY_BUT_0_1 GENMASK(9, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:128:32: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
128 | [M1_PMU_PERFCTR_UNKNOWN_f6] = ONLY_2_4_6,
| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6'
27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:99:32: note: previous initialization is here
99 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1'
25 | #define ANY_BUT_0_1 GENMASK(9, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:129:32: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
129 | [M1_PMU_PERFCTR_UNKNOWN_f7] = ONLY_2_4_6,
| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6'
27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:99:32: note: previous initialization is here
99 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1'
25 | #define ANY_BUT_0_1 GENMASK(9, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:130:32: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
130 | [M1_PMU_PERFCTR_UNKNOWN_f8] = ONLY_2_TO_7,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:26:23: note: expanded from macro 'ONLY_2_TO_7'
26 | #define ONLY_2_TO_7 GENMASK(7, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:99:32: note: previous initialization is here
99 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1'
25 | #define ANY_BUT_0_1 GENMASK(9, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:131:32: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
131 | [M1_PMU_PERFCTR_UNKNOWN_fd] = ONLY_2_4_6,
| ^~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:27:22: note: expanded from macro 'ONLY_2_4_6'
27 | #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:99:32: note: previous initialization is here
99 | [0 ... M1_PMU_PERFCTR_LAST] = ANY_BUT_0_1,
| ^~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:25:23: note: expanded from macro 'ANY_BUT_0_1'
25 | #define ANY_BUT_0_1 GENMASK(9, 2)
| ^~~~~~~~~~~~~
include/linux/bits.h:35:2: note: expanded from macro 'GENMASK'
35 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:136:31: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
136 | [PERF_COUNT_HW_CPU_CYCLES] = M1_PMU_PERFCTR_CPU_CYCLES,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:135:2: note: previous initialization is here
135 | PERF_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:40:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED'
40 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED
| ^~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:35:28: note: expanded from macro 'HW_OP_UNSUPPORTED'
35 | #define HW_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/apple_m1_cpu_pmu.c:137:33: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
137 | [PERF_COUNT_HW_INSTRUCTIONS] = M1_PMU_PERFCTR_INSTRUCTIONS,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/perf/apple_m1_cpu_pmu.c:135:2: note: previous initialization is here
135 | PERF_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:40:34: note: expanded from macro 'PERF_MAP_ALL_UNSUPPORTED'
40 | [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTED
| ^~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:35:28: note: expanded from macro 'HW_OP_UNSUPPORTED'
35 | #define HW_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
>> drivers/perf/apple_m1_cpu_pmu.c:403:31: error: no member named 'num_events' in 'struct arm_pmu'; did you mean 'hw_events'?
403 | for (idx = 0; idx < cpu_pmu->num_events; idx++) {
| ^~~~~~~~~~
| hw_events
include/linux/perf/arm_pmu.h:106:33: note: 'hw_events' declared here
106 | struct pmu_hw_events __percpu *hw_events;
| ^
drivers/perf/apple_m1_cpu_pmu.c:563:11: error: no member named 'num_events' in 'struct arm_pmu'; did you mean 'hw_events'?
563 | cpu_pmu->num_events = M1_PMU_NR_COUNTERS;
| ^~~~~~~~~~
| hw_events
include/linux/perf/arm_pmu.h:106:33: note: 'hw_events' declared here
106 | struct pmu_hw_events __percpu *hw_events;
| ^
39 warnings and 2 errors generated.

vim +403 drivers/perf/apple_m1_cpu_pmu.c

a639027a1be1d6 Marc Zyngier 2022-02-08 381
a639027a1be1d6 Marc Zyngier 2022-02-08 382 static irqreturn_t m1_pmu_handle_irq(struct arm_pmu *cpu_pmu)
a639027a1be1d6 Marc Zyngier 2022-02-08 383 {
a639027a1be1d6 Marc Zyngier 2022-02-08 384 struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events);
a639027a1be1d6 Marc Zyngier 2022-02-08 385 struct pt_regs *regs;
a639027a1be1d6 Marc Zyngier 2022-02-08 386 u64 overflow, state;
a639027a1be1d6 Marc Zyngier 2022-02-08 387 int idx;
a639027a1be1d6 Marc Zyngier 2022-02-08 388
a639027a1be1d6 Marc Zyngier 2022-02-08 389 overflow = read_sysreg_s(SYS_IMP_APL_PMSR_EL1);
a639027a1be1d6 Marc Zyngier 2022-02-08 390 if (!overflow) {
a639027a1be1d6 Marc Zyngier 2022-02-08 391 /* Spurious interrupt? */
a639027a1be1d6 Marc Zyngier 2022-02-08 392 state = read_sysreg_s(SYS_IMP_APL_PMCR0_EL1);
a639027a1be1d6 Marc Zyngier 2022-02-08 393 state &= ~PMCR0_IACT;
a639027a1be1d6 Marc Zyngier 2022-02-08 394 write_sysreg_s(state, SYS_IMP_APL_PMCR0_EL1);
a639027a1be1d6 Marc Zyngier 2022-02-08 395 isb();
a639027a1be1d6 Marc Zyngier 2022-02-08 396 return IRQ_NONE;
a639027a1be1d6 Marc Zyngier 2022-02-08 397 }
a639027a1be1d6 Marc Zyngier 2022-02-08 398
a639027a1be1d6 Marc Zyngier 2022-02-08 399 cpu_pmu->stop(cpu_pmu);
a639027a1be1d6 Marc Zyngier 2022-02-08 400
a639027a1be1d6 Marc Zyngier 2022-02-08 401 regs = get_irq_regs();
a639027a1be1d6 Marc Zyngier 2022-02-08 402
a639027a1be1d6 Marc Zyngier 2022-02-08 @403 for (idx = 0; idx < cpu_pmu->num_events; idx++) {
a639027a1be1d6 Marc Zyngier 2022-02-08 404 struct perf_event *event = cpuc->events[idx];
a639027a1be1d6 Marc Zyngier 2022-02-08 405 struct perf_sample_data data;
a639027a1be1d6 Marc Zyngier 2022-02-08 406
a639027a1be1d6 Marc Zyngier 2022-02-08 407 if (!event)
a639027a1be1d6 Marc Zyngier 2022-02-08 408 continue;
a639027a1be1d6 Marc Zyngier 2022-02-08 409
a639027a1be1d6 Marc Zyngier 2022-02-08 410 armpmu_event_update(event);
a639027a1be1d6 Marc Zyngier 2022-02-08 411 perf_sample_data_init(&data, 0, event->hw.last_period);
a639027a1be1d6 Marc Zyngier 2022-02-08 412 if (!armpmu_event_set_period(event))
a639027a1be1d6 Marc Zyngier 2022-02-08 413 continue;
a639027a1be1d6 Marc Zyngier 2022-02-08 414
a639027a1be1d6 Marc Zyngier 2022-02-08 415 if (perf_event_overflow(event, &data, regs))
a639027a1be1d6 Marc Zyngier 2022-02-08 416 m1_pmu_disable_event(event);
a639027a1be1d6 Marc Zyngier 2022-02-08 417 }
a639027a1be1d6 Marc Zyngier 2022-02-08 418
a639027a1be1d6 Marc Zyngier 2022-02-08 419 cpu_pmu->start(cpu_pmu);
a639027a1be1d6 Marc Zyngier 2022-02-08 420
a639027a1be1d6 Marc Zyngier 2022-02-08 421 return IRQ_HANDLED;
a639027a1be1d6 Marc Zyngier 2022-02-08 422 }
a639027a1be1d6 Marc Zyngier 2022-02-08 423

--
0-DAY CI Kernel Test Service