| Message ID | 20220610134113.62991-1-atrajeev@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add group constraints and event code test as part of selftest | expand |
On Fri, 10 Jun 2022 19:10:38 +0530, Athira Rajeev wrote: > Patch series extends the perf interface selftests > to cover scenarios for event code checking, > group constraints, and also thresholding/branch related > interface tests in sampling area. > > In this series, patches 1 to 14 adds additional tests under > "powerpc/sampling_tests". These adds support for handling > sample type PERF_SAMPLE_BRANCH_STACK along with interrupt regs. > It adds utility functions and test for thresh_cmp and branch > filters programmed in control register. Some of the tests needs > to be skipped for "Generic Compat PMU" environment. Hence utility > functions are added in "include/utils.c" and "sampling_tests/misc.h" > to detect platform based on "auxv" entries. > > [...] Applied to powerpc/next. [01/35] selftest/powerpc/pmu: Add mask/shift bits for extracting threshold compare field https://git.kernel.org/powerpc/c/42e0576eec75479fa7709c41e5c3b9ec556b8f4d [02/35] testing/selftests/powerpc: Add support to fetch "platform" and "base platform" from auxv to detect platform. https://git.kernel.org/powerpc/c/a069b5f980e3b65b64b6322b71d5819f90dbb42b [03/35] selftest/powerpc/pmu: Add interface test for mmcra_thresh_cmp fields https://git.kernel.org/powerpc/c/50d9c30a685c14e41e44d48a08a08703c680d861 [04/35] selftest/powerpc/pmu: Add support for branch sampling in get_intr_regs function https://git.kernel.org/powerpc/c/61d89900315aa25f6da0c1bc800ce295d74d69f1 [05/35] selftest/powerpc/pmu: Add interface test for mmcra_ifm field of indirect call type https://git.kernel.org/powerpc/c/c55dabc6d577a864cd618107ea6aaa6cad8c987b [06/35] selftest/powerpc/pmu: Add interface test for mmcra_ifm field for any branch type https://git.kernel.org/powerpc/c/faa64ddc1e398131e7eaadc8f03cb7bd3904eff2 [07/35] selftest/powerpc/pmu: Add interface test for mmcra_ifm field for conditional branch type https://git.kernel.org/powerpc/c/014fb4a3ae746276f4320f7010d03157485051cb [08/35] selftest/powerpc/pmu: Add interface test for bhrb disable field https://git.kernel.org/powerpc/c/84cc4e66d90f6624f821df381073813dd502f657 [09/35] selftest/powerpc/pmu: Refactor the platform check and add macros to find array size/PVR https://git.kernel.org/powerpc/c/9cfd110a36649f9452120a648f15f32d1c82b99d [10/35] selftest/powerpc/pmu: Add selftest to check branch stack enablement will not crash on any platforms https://git.kernel.org/powerpc/c/2ac05f8f2e4b9068e5bbc0836b35abafd70f02c1 [11/35] selftest/powerpc/pmu: Add selftest to check PERF_SAMPLE_REGS_INTR option will not crash on any platforms https://git.kernel.org/powerpc/c/11bbc524390572dfe1bd0375c7e7ab8f9ddf4b34 [12/35] selftest/powerpc/pmu: Add selftest for checking valid and invalid bhrb filter maps https://git.kernel.org/powerpc/c/f6380e05aa92b005ac6f38be92afbdd2a0706cff [13/35] selftest/powerpc/pmu: Add selftest for mmcr1 pmcxsel/unit/cache fields https://git.kernel.org/powerpc/c/0321f2d0ae6959f79f5b8a21b31694b54dbaa35d [14/35] selftest/powerpc/pmu: Add interface test for bhrb disable field for non-branch samples https://git.kernel.org/powerpc/c/78cd598af648131d2e9a32825c59b8d1e9ec9357 [15/35] selftest/powerpc/pmu: Add support for perf event code tests https://git.kernel.org/powerpc/c/0a110a4b69dacc30ce4f6c10c0396bd2fd097831 [16/35] selftest/powerpc/pmu: Add selftest for group constraint check for PMC5 and PMC6 https://git.kernel.org/powerpc/c/9258c0aa755fac469869dd647a6c3d5299ff7725 [17/35] selftest/powerpc/pmu: Add selftest to check PMC5/6 is excluded from some constraint checks https://git.kernel.org/powerpc/c/4000c2e5d40a3ee340c3940949d658fc52a56603 [18/35] selftest/powerpc/pmu: Add selftest to check constraint for number of counters in use. https://git.kernel.org/powerpc/c/827765a449dbc41ad19ab3e31757c93cac47b728 [19/35] selftest/powerpc/pmu: Add selftest for group constraint check when using same PMC https://git.kernel.org/powerpc/c/38b6da45304e55de11b8b79a0f31a4d61818e63e [20/35] selftest/powerpc/pmu: Add selftest for group constraint check for radix_scope_qual field https://git.kernel.org/powerpc/c/dc431be3b54901744e84f5f94f0f0a2b5d36bb7f [21/35] selftest/powerpc/pmu: Add selftest for group constraint for MMCRA Sampling Mode field https://git.kernel.org/powerpc/c/beebeecb47d3b93198fe46922fd4ba2af2090cdd [22/35] selftest/powerpc/pmu: Add selftest for group constraint check MMCRA sample bits https://git.kernel.org/powerpc/c/122b6b9e57006520addd9f3a44f6b7e3ce503044 [23/35] selftest/powerpc/pmu: Add selftest for checking invalid bits in event code https://git.kernel.org/powerpc/c/5196a27978dcc74251eab14cffa8fa96813e0365 [24/35] selftest/powerpc/pmu: Add selftest for reserved bit check for MMCRA thresh_ctl field https://git.kernel.org/powerpc/c/0c90263339da3e4cdcbf57cfa43d6d866c3ac95e [25/35] selftest/powerpc/pmu: Add selftest for blacklist events check in power9 https://git.kernel.org/powerpc/c/a77c69766c7d4a213e65a4ecdedda7c22f2deb01 [26/35] selftest/powerpc/pmu: Add selftest for event alternatives for power9 https://git.kernel.org/powerpc/c/5958ad4392b0f437605ade8bab42447b0d97ad8c [27/35] selftest/powerpc/pmu: Add selftest for event alternatives for power10 https://git.kernel.org/powerpc/c/3f1a87425f8c2f9af745923865a4765e36a2ed3c [28/35] selftest/powerpc/pmu: Add selftest for PERF_TYPE_HARDWARE events valid check https://git.kernel.org/powerpc/c/8efeedf5aac77b58f68e6eb9df62758ba1882bb3 [29/35] selftest/powerpc/pmu: Add selftest for group constraint check for MMCR0 l2l3_sel bits https://git.kernel.org/powerpc/c/20b3073f8727e20332379f145b6eecf580291b2c [30/35] selftest/powerpc/pmu: Add selftest for group constraint check for MMCR1 cache bits https://git.kernel.org/powerpc/c/291c01ed207d83c8910e0fb21944e6ef84021956 [31/35] selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_cmp field https://git.kernel.org/powerpc/c/8eaca8c4b4ed9a2058e4f232d56b5973191fec37 [32/35] selftest/powerpc/pmu: Add selftest for group constraint for unit and pmc field in p9 https://git.kernel.org/powerpc/c/142c9bd1ff215f364a5d683a9dd0b7c413397185 [33/35] selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_ctl field https://git.kernel.org/powerpc/c/c178606ab51076d464fe537cd7a6bcbc615939e5 [34/35] selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_sel field https://git.kernel.org/powerpc/c/9ac92fecd1dbfcabd64925571b94151d7a814878 [35/35] selftest/powerpc/pmu: Add test for hardware cache events https://git.kernel.org/powerpc/c/ab8bca92aebcb59d81dc95ddebe241052f2bb411 cheers
Patch series extends the perf interface selftests to cover scenarios for event code checking, group constraints, and also thresholding/branch related interface tests in sampling area. In this series, patches 1 to 14 adds additional tests under "powerpc/sampling_tests". These adds support for handling sample type PERF_SAMPLE_BRANCH_STACK along with interrupt regs. It adds utility functions and test for thresh_cmp and branch filters programmed in control register. Some of the tests needs to be skipped for "Generic Compat PMU" environment. Hence utility functions are added in "include/utils.c" and "sampling_tests/misc.h" to detect platform based on "auxv" entries. Currently in other architectures (like x86), the pmu_name is exposed via sysfs caps folder ie: "sys/bus/event_source/devices/<pmu>/caps". But in powerpc, "caps" is not supported. So, though the approach for detecting compat mode currently uses auxv, patchset adds an utility function considering a possibility of getting "caps" added for powerpc. Link to the patch to add support for caps under sysfs in powerpc: http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=301270 Patches 15 to 35 covers test related to group constraints and event codes. These new set of changes are added under new folder: "selftests/powerpc/pmu/event_code_tests" Patch 15 covers changes required for new folder with Makefile changes. The other patches add tests for perf interface to check the event group constraints, valid/invalid event codes, blacklisted events etc. Also add required utility functions under header file "misc.h" in sampling_tests folder. Patch 13 of the patchset add selftest for mmcr1 pmcxsel/unit/cache fields, which was initially dropeed from sampling test patchset (patch number: 16) Link to the patch: http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220127072012.662451-17-kjain@linux.ibm.com/ Changelog: v2 -> v3: Changed name for generic compat PMU to ISAv3 in Patch2. This is based on recent patch sent by Joel Stanley to change name for generic_compat_pmu to ISAv3. http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=304131 v1 -> v2: Patch 12: Fixed bhrb_filter_map testcase to address build failure in distro like Ubuntu 16.04. This testcase uses perf branch sample types from include/uapi/linux/perf_event.h and three of the sample types are not defined in Ubuntu 16.04. Hence changed the logic to loop over values from PERF_SAMPLE_BRANCH_USER_SHIFT to PERF_SAMPLE_BRANCH_MAX_SHIFT as suggested by Michael Ellerman. Patch 2: The sampling_tests/misc.c used pmu_name for generic compat pmu as generic_compat_pmu. But latest version of patch to expose caps in powerpc will use power_pmu->name. So change the pmu name in misc code as GENERIC_COMPAT ( which is what pmu->name uses in driver code). Link to linuxppc-ci: https://github.com/athira-rajeev/linux-ci/actions?query=branch%3Aselftest_v5_set2 Athira Rajeev (20): testing/selftests/powerpc: Add support to fetch "platform" and "base platform" from auxv to detect platform. selftest/powerpc/pmu: Refactor the platform check and add macros to find array size/PVR selftest/powerpc/pmu: Add selftest to check branch stack enablement will not crash on any platforms selftest/powerpc/pmu: Add selftest to check PERF_SAMPLE_REGS_INTR option will not crash on any platforms selftest/powerpc/pmu: Add selftest for checking valid and invalid bhrb filter maps selftest/powerpc/pmu: Add selftest for mmcr1 pmcxsel/unit/cache fields selftest/powerpc/pmu: Add support for perf event code tests selftest/powerpc/pmu: Add selftest for group constraint check for PMC5 and PMC6 selftest/powerpc/pmu: Add selftest to check PMC5/6 is excluded from some constraint checks selftest/powerpc/pmu: Add selftest to check constraint for number of counters in use. selftest/powerpc/pmu: Add selftest for group constraint check when using same PMC selftest/powerpc/pmu: Add selftest for group constraint check for radix_scope_qual field selftest/powerpc/pmu: Add selftest for group constraint for MMCRA Sampling Mode field selftest/powerpc/pmu: Add selftest for group constraint check MMCRA sample bits selftest/powerpc/pmu: Add selftest for checking invalid bits in event code selftest/powerpc/pmu: Add selftest for reserved bit check for MMCRA thresh_ctl field selftest/powerpc/pmu: Add selftest for blacklist events check in power9 selftest/powerpc/pmu: Add selftest for event alternatives for power9 selftest/powerpc/pmu: Add selftest for event alternatives for power10 selftest/powerpc/pmu: Add selftest for PERF_TYPE_HARDWARE events valid check Kajol Jain (15): selftest/powerpc/pmu: Add mask/shift bits for extracting threshold compare field selftest/powerpc/pmu: Add interface test for mmcra_thresh_cmp fields selftest/powerpc/pmu: Add support for branch sampling in get_intr_regs function selftest/powerpc/pmu: Add interface test for mmcra_ifm field of indirect call type selftest/powerpc/pmu: Add interface test for mmcra_ifm field for any branch type selftest/powerpc/pmu: Add interface test for mmcra_ifm field for conditional branch type selftest/powerpc/pmu: Add interface test for bhrb disable field selftest/powerpc/pmu: Add interface test for bhrb disable field for non-branch samples selftest/powerpc/pmu: Add selftest for group constraint check for MMCR0 l2l3_sel bits selftest/powerpc/pmu: Add selftest for group constraint check for MMCR1 cache bits selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_cmp field selftest/powerpc/pmu: Add selftest for group constraint for unit and pmc field in p9 selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_ctl field selftest/powerpc/pmu: Add selftest for group constraint check for MMCRA thresh_sel field selftest/powerpc/pmu: Add test for hardware cache events tools/testing/selftests/powerpc/include/reg.h | 4 + .../testing/selftests/powerpc/include/utils.h | 10 ++ tools/testing/selftests/powerpc/pmu/Makefile | 11 +- .../selftests/powerpc/pmu/branch_loops.S | 28 ++++ .../powerpc/pmu/event_code_tests/Makefile | 15 ++ .../blacklisted_events_test.c | 132 +++++++++++++++++ .../event_alternatives_tests_p10.c | 109 ++++++++++++++ .../event_alternatives_tests_p9.c | 116 +++++++++++++++ .../generic_events_valid_test.c | 130 +++++++++++++++++ .../group_constraint_cache_test.c | 60 ++++++++ .../group_constraint_l2l3_sel_test.c | 64 +++++++++ .../group_constraint_mmcra_sample_test.c | 54 +++++++ .../group_constraint_pmc56_test.c | 63 ++++++++ .../group_constraint_pmc_count_test.c | 70 +++++++++ .../group_constraint_radix_scope_qual_test.c | 56 ++++++++ .../group_constraint_repeat_test.c | 56 ++++++++ .../group_constraint_thresh_cmp_test.c | 96 +++++++++++++ .../group_constraint_thresh_ctl_test.c | 64 +++++++++ .../group_constraint_thresh_sel_test.c | 63 ++++++++ .../group_constraint_unit_test.c | 74 ++++++++++ .../group_pmc56_exclude_constraints_test.c | 64 +++++++++ .../hw_cache_event_type_test.c | 88 ++++++++++++ .../invalid_event_code_test.c | 67 +++++++++ ...eserved_bits_mmcra_sample_elig_mode_test.c | 77 ++++++++++ .../reserved_bits_mmcra_thresh_ctl_test.c | 44 ++++++ .../powerpc/pmu/sampling_tests/Makefile | 7 +- .../pmu/sampling_tests/bhrb_filter_map_test.c | 105 ++++++++++++++ .../bhrb_no_crash_wo_pmu_test.c | 59 ++++++++ .../intr_regs_no_crash_wo_pmu_test.c | 57 ++++++++ .../powerpc/pmu/sampling_tests/misc.c | 135 +++++++++++++++++- .../powerpc/pmu/sampling_tests/misc.h | 9 +- .../mmcr1_sel_unit_cache_test.c | 77 ++++++++++ .../pmu/sampling_tests/mmcra_bhrb_any_test.c | 65 +++++++++ .../pmu/sampling_tests/mmcra_bhrb_cond_test.c | 69 +++++++++ .../mmcra_bhrb_disable_no_branch_test.c | 64 +++++++++ .../sampling_tests/mmcra_bhrb_disable_test.c | 66 +++++++++ .../sampling_tests/mmcra_bhrb_ind_call_test.c | 69 +++++++++ .../sampling_tests/mmcra_thresh_cmp_test.c | 74 ++++++++++ 38 files changed, 2461 insertions(+), 10 deletions(-) create mode 100644 tools/testing/selftests/powerpc/pmu/branch_loops.S create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/blacklisted_events_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p10.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_mmcra_sample_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc56_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc_count_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_repeat_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/group_pmc56_exclude_constraints_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/hw_cache_event_type_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/invalid_event_code_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_sample_elig_mode_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_thresh_ctl_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_no_crash_wo_pmu_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/intr_regs_no_crash_wo_pmu_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_sel_unit_cache_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_any_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c create mode 100644 tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_cmp_test.c