diff options
| author | Kajol Jain <kjain@linux.ibm.com> | 2025-01-13 13:28:57 +0530 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-02-11 11:33:51 +0530 |
| commit | 9785def2593c7c62fa3271d740eef0e1d1874ef4 (patch) | |
| tree | 5c408b9941634627f20f9bad06e99428d309cf9c /tools/testing/selftests/powerpc | |
| parent | tools/testing/selftests/powerpc/pmu: Update comment description to mention IS... (diff) | |
| download | linux-9785def2593c7c62fa3271d740eef0e1d1874ef4.tar.gz linux-9785def2593c7c62fa3271d740eef0e1d1874ef4.zip | |
selftests/powerpc/pmu: Add interface test for extended reg support
The testcase uses check_extended_regs_support and
perf_get_platform_reg_mask function to check if the
platform has extended reg support. This will help to
check if sampling pmu selftest is enabled or not for
a given platform.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250113075858.45137-4-atrajeev@linux.vnet.ibm.com
Diffstat (limited to 'tools/testing/selftests/powerpc')
4 files changed, 40 insertions, 2 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile index 9f79bec5fce7..0c4ed299c3b8 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile @@ -5,7 +5,8 @@ TEST_GEN_PROGS := mmcr0_exceptionbits_test mmcr0_cc56run_test mmcr0_pmccext_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 intr_regs_no_crash_wo_pmu_test \ - bhrb_filter_map_test mmcr1_sel_unit_cache_test mmcra_bhrb_disable_no_branch_test + bhrb_filter_map_test mmcr1_sel_unit_cache_test mmcra_bhrb_disable_no_branch_test \ + check_extended_reg_test top_srcdir = ../../../../../.. include ../../../lib.mk diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c new file mode 100644 index 000000000000..865bc69f920c --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2024, Kajol Jain, IBM Corp. + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "../event.h" +#include "misc.h" +#include "utils.h" + +/* + * A perf sampling test to check extended + * reg support. + */ +static int check_extended_reg_test(void) +{ + /* Check for platform support for the test */ + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); + + /* Skip for Generic compat PMU */ + SKIP_IF(check_for_generic_compat_pmu()); + + /* Check if platform supports extended regs */ + platform_extended_mask = perf_get_platform_reg_mask(); + FAIL_IF(check_extended_regs_support()); + + return 0; +} + +int main(void) +{ + return test_harness(check_extended_reg_test, "check_extended_reg_test"); +} diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c index c52d8bc2a5dc..1ba675802ee9 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c @@ -92,7 +92,7 @@ static void init_ev_encodes(void) } /* Return the extended regs mask value */ -static u64 perf_get_platform_reg_mask(void) +u64 perf_get_platform_reg_mask(void) { if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) return PERF_POWER10_MASK; diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h index 09c5abe237af..357e9f0fc0f7 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h @@ -39,6 +39,8 @@ extern int pvr; extern u64 platform_extended_mask; extern int check_pvr_for_sampling_tests(void); extern int platform_check_for_tests(void); +extern int check_extended_regs_support(void); +extern u64 perf_get_platform_reg_mask(void); /* * Event code field extraction macro. |