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Message-ID: <202408062245.C5TeYWiV-lkp@intel.com>
Date: Tue, 6 Aug 2024 23:15:16 +0800
From: kernel test robot <lkp@...el.com>
To: Song Liu <song@...nel.org>, linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Song Liu <song@...nel.org>, Mark Rutland <mark.rutland@....com>,
Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>,
Will Deacon <will@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH] Revert "perf: Add a counter for number of user access
events in context"
Hi Song,
kernel test robot noticed the following build errors:
[auto build test ERROR on perf-tools-next/perf-tools-next]
[also build test ERROR on tip/perf/core perf-tools/perf-tools linus/master v6.11-rc2 next-20240806]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Song-Liu/Revert-perf-Add-a-counter-for-number-of-user-access-events-in-context/20240806-071159
base: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next
patch link: https://lore.kernel.org/r/20240805231031.1760371-1-song%40kernel.org
patch subject: [PATCH] Revert "perf: Add a counter for number of user access events in context"
config: arm64-randconfig-001-20240806 (https://download.01.org/0day-ci/archive/20240806/202408062245.C5TeYWiV-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 423aec6573df4424f90555468128e17073ddc69e)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240806/202408062245.C5TeYWiV-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408062245.C5TeYWiV-lkp@intel.com/
All errors (new ones prefixed by >>):
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:147:44: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
147 | [C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:133:44: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD'
133 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD 0x004E
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:148:45: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
148 | [C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:134:44: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR'
134 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR 0x004F
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:149:42: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
149 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:131:50: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD'
131 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD 0x004C
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:150:43: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
150 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:132:50: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR'
132 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR 0x004D
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:152:44: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
152 | [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:148:46: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD'
148 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD 0x0060
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
drivers/perf/arm_pmuv3.c:153:45: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
153 | [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmuv3.h:149:46: note: expanded from macro 'ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR'
149 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR 0x0061
| ^~~~~~
drivers/perf/arm_pmuv3.c:140:2: note: previous initialization is here
140 | PERF_CACHE_MAP_ALL_UNSUPPORTED,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:45:31: note: expanded from macro 'PERF_CACHE_MAP_ALL_UNSUPPORTED'
45 | [0 ... C(RESULT_MAX) - 1] = CACHE_OP_UNSUPPORTED, \
| ^~~~~~~~~~~~~~~~~~~~
include/linux/perf/arm_pmu.h:37:31: note: expanded from macro 'CACHE_OP_UNSUPPORTED'
37 | #define CACHE_OP_UNSUPPORTED 0xFFFF
| ^~~~~~
>> drivers/perf/arm_pmuv3.c:824:18: error: no member named 'nr_user' in 'struct perf_event_context'
824 | nr_user = ctx->nr_user;
| ~~~ ^
60 warnings and 1 error generated.
vim +824 drivers/perf/arm_pmuv3.c
030896885ade0a arch/arm64/kernel/perf_event.c Will Deacon 2012-03-05 816
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 817 static void armv8pmu_start(struct arm_pmu *cpu_pmu)
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 818 {
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 819 struct perf_event_context *ctx;
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 820 int nr_user = 0;
83a7a4d643d33a arch/arm64/kernel/perf_event.c Rob Herring 2021-12-08 821
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 822 ctx = perf_cpu_task_ctx();
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 823 if (ctx)
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 @824 nr_user = ctx->nr_user;
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 825
bd27568117664b arch/arm64/kernel/perf_event.c Peter Zijlstra 2022-10-08 826 if (sysctl_perf_user_access && nr_user)
83a7a4d643d33a arch/arm64/kernel/perf_event.c Rob Herring 2021-12-08 827 armv8pmu_enable_user_access(cpu_pmu);
83a7a4d643d33a arch/arm64/kernel/perf_event.c Rob Herring 2021-12-08 828 else
83a7a4d643d33a arch/arm64/kernel/perf_event.c Rob Herring 2021-12-08 829 armv8pmu_disable_user_access();
83a7a4d643d33a arch/arm64/kernel/perf_event.c Rob Herring 2021-12-08 830
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 831 /* Enable all counters */
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 832 armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMU_PMCR_E);
b1f778a223a2a8 drivers/perf/arm_pmuv3.c Marc Zyngier 2023-08-20 833
b1f778a223a2a8 drivers/perf/arm_pmuv3.c Marc Zyngier 2023-08-20 834 kvm_vcpu_pmu_resync_el0();
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 835 }
3cce50dfec4a5b arch/arm64/kernel/perf_event.c Suzuki K Poulose 2018-07-10 836
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