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| author |   Athira Rajeev <atrajeev@linux.vnet.ibm.com> | 2022-06-10 19:10:49 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-06-29 08:57:42 +1000 |
| commit | 11bbc524390572dfe1bd0375c7e7ab8f9ddf4b34 (patch) | |
| tree | 5ab72a81b0f21219a52748e84fc7abe65f433584 /tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile | |
| parent | selftests/powerpc/pmu: Add selftest to check branch stack enablement will not crash on any platforms (diff) | |
| download | linux-dev-11bbc524390572dfe1bd0375c7e7ab8f9ddf4b34.tar.xz linux-dev-11bbc524390572dfe1bd0375c7e7ab8f9ddf4b34.zip | |
selftests/powerpc/pmu: Add selftest to check PERF_SAMPLE_REGS_INTR option will not crash on any platforms
With sampling, --intr-regs option is used for capturing
interrupt regs. When --intr-regs option is used, PMU code
uses is_sier_available() function which uses PMU flags in
the code. In environment where platform specific PMU is
not registered, PMU flags is not defined. A fix was added
in kernel to address crash while accessing is_sier_available()
function when pmu is not set. commit f75e7d73bdf7 ("powerpc/perf:
Fix crash with is_sier_available when pmu is not set").
Add perf sampling test to exercise this code and make sure
enabling intr_regs shouldn't crash in any platform. Testcase
uses software event cycles since software event will work even
in cases without PMU.
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220610134113.62991-12-atrajeev@linux.vnet.ibm.com
Diffstat (limited to 'tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile')
| -rw-r--r-- | tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile index 8d4839cde013..8d4566dac440 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile @@ -6,7 +6,7 @@ TEST_GEN_PROGS := mmcr0_exceptionbits_test mmcr0_cc56run_test mmcr0_pmccext_test mmcr1_comb_test mmcr2_l2l3_test mmcr2_fcs_fch_test \ mmcr3_src_test mmcra_thresh_marked_sample_test mmcra_thresh_cmp_test \ mmcra_bhrb_ind_call_test mmcra_bhrb_any_test mmcra_bhrb_cond_test \ - mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test + mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test intr_regs_no_crash_wo_pmu_test top_srcdir = ../../../../../.. include ../../../lib.mk |