Changes in Makefile

9785def2 - selftests/powerpc/pmu: Add interface test for extended reg support

Mon, 13 Jan 2025 07:58:57 +0000

selftests/powerpc/pmu: Add interface test for extended reg supportThe testcase uses check_extended_regs_support andperf_get_platform_reg_mask function to check if theplatform has extended reg support. This will help tocheck if sampling pmu selftest is enabled or not fora given platform.Signed-off-by: Kajol Jain Signed-off-by: Athira Rajeev Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20250113075858.45137-4-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

5553a793 - selftests/powerpc: Add flags.mk to support pmu buildable

Thu, 29 Feb 2024 09:37:10 +0000

selftests/powerpc: Add flags.mk to support pmu buildableWhen running `make -C powerpc/pmu run_tests` from top level selftestsdirectory, currently this error is being reported: make: Entering directory '/home/maddy/linux/tools/testing/selftests/powerpc/pmu' Makefile:40: warning: overriding recipe for target 'emit_tests' ../../lib.mk:111: warning: ignoring old recipe for target 'emit_tests' gcc -m64 count_instructions.c ../harness.c event.c lib.c ../utils.c loop.S -o /home/maddy/selftest_output//count_instructions In file included from count_instructions.c:13: event.h:12:10: fatal error: utils.h: No such file or directory 12 | #include "utils.h" | ^~~~~~~~~ compilation terminated.This is due to missing of include path in CFLAGS. That is, CFLAGS andGIT_VERSION macros are defined in the powerpc/ folder Makefile whichin this case is not involved.To address the failure in case of executing specific sub-folder testdirectly, a new rule file has been addded by the patch called "flags.mk"under selftest/powerpc/ folder and is linked to all the Makefile ofpowerpc/pmu sub-folders.Reported-by: Sachin Sant Signed-off-by: Madhavan Srinivasan Tested-by: Sachin Sant [mpe: Fixup ifeq, make GIT_VERSION simply expanded to avoid re-executing git describe]Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-2-maddy@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

37496845 - selftests/powerpc: Re-order *FLAGS to follow lib.mk

Thu, 29 Feb 2024 09:37:09 +0000

selftests/powerpc: Re-order *FLAGS to follow lib.mkIn some powerpc/ sub-folder Makefiles, CFLAGS are defined before lib.mkinclude. Clean it up by re-ordering the flags to follow after the mkinclude. This is needed to support sub-folders in powerpc/ buildable onits own.Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-1-maddy@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

78cd598a - selftests/powerpc/pmu: Add interface test for bhrb disable field for non-branch samples

Fri, 10 Jun 2022 13:40:52 +0000

selftests/powerpc/pmu: Add interface test for bhrb disable field for non-branch samplesThe testcase uses "instructions" event to generate the samples and fetchMonitor Mode Control Register A (MMCRA) when overflow. Branch HistoryRolling Buffer(bhrb) disable bit is part of MMCRA which need to beverified by perf interface. Incase sample is not of branch type, bhrbdisable bit is explicitly set to 1. Testcase checks if the bhrb disablebit is set of MMCRA register via perf interface for ISA v3.1 platformSigned-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-15-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

0321f2d0 - selftests/powerpc/pmu: Add selftest for mmcr1 pmcxsel/unit/cache fields

Fri, 10 Jun 2022 13:40:51 +0000

selftests/powerpc/pmu: Add selftest for mmcr1 pmcxsel/unit/cache fieldsThe testcase uses event code "0x21c040" to verify the settings fordifferent fields in Monitor Mode Control Register 1 (MMCR1). The fieldsinclude PMCxSEL, PMCXCOMB PMCxUNIT, cache. Checks if these fields aretranslated correctly via perf interface to MMCR1Signed-off-by: Athira Rajeev Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-14-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

f6380e05 - selftests/powerpc/pmu: Add selftest for checking valid and invalid bhrb filter maps

Fri, 10 Jun 2022 13:40:50 +0000

selftests/powerpc/pmu: Add selftest for checking valid and invalid bhrb filter mapsFor PERF_SAMPLE_BRANCH_STACK sample type, different branch_sample_type,ie branch filters are supported. All the branch filters are notsupported in powerpc. Example, power10 platform supports any, ind_calland cond branch filters. Whereas, it is different in power9. Testcasechecks event open for invalid and valid branch sample types. The branchtypes for testcase are picked from "perf_branch_sample_type" inperf_event.hSigned-off-by: Athira Rajeev Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-13-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

11bbc524 - selftests/powerpc/pmu: Add selftest to check PERF_SAMPLE_REGS_INTR option will not crash on any platforms

Fri, 10 Jun 2022 13:40:49 +0000

selftests/powerpc/pmu: Add selftest to check PERF_SAMPLE_REGS_INTR option will not crash on any platformsWith sampling, --intr-regs option is used for capturinginterrupt regs. When --intr-regs option is used, PMU codeuses is_sier_available() function which uses PMU flags inthe code. In environment where platform specific PMU isnot registered, PMU flags is not defined. A fix was addedin 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 sureenabling intr_regs shouldn't crash in any platform. Testcaseuses software event cycles since software event will work evenin cases without PMU.Signed-off-by: Athira Rajeev Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-12-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

2ac05f8f - selftests/powerpc/pmu: Add selftest to check branch stack enablement will not crash on any platforms

Fri, 10 Jun 2022 13:40:48 +0000

selftests/powerpc/pmu: Add selftest to check branch stack enablement will not crash on any platformsWhile enabling branch stack for an event, BHRB (Branch HistoryRolling Buffer) filter is set using bhrb_filter_map() callback.This callback is not defined for cases like generic_compat_pmuor in case where there is no PMU registered. A fix was addedin kernel to address a crash issue observed while enabling branchstack for environments which doesn't have this callback.commit b460b512417a ("powerpc/perf: Fix crashes withgeneric_compat_pmu & BHRB").Add perf sampling test to exercise this code path and makesure enabling branch stack shouldn't crash in any platform.Testcase uses software event cycles since software event isavailable and can be used even in cases without PMU.Signed-off-by: Athira Rajeev Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-11-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

84cc4e66 - selftests/powerpc/pmu: Add interface test for bhrb disable field

Fri, 10 Jun 2022 13:40:46 +0000

selftests/powerpc/pmu: Add interface test for bhrb disable fieldThe testcase uses "instructions" event to generate thesamples and fetch Monitor Mode Control Register A (MMCRA)when overflow. Branch History Rolling Buffer(bhrb) disable bitis part of MMCRA which need to be verified by perf interface.Testcase checks if the bhrb disable bit of MMCRA register isprogrammed correctly via perf interface for ISA v3.1 platformAlso make get_mmcra_ifm return type as u64.Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-9-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

014fb4a3 - selftests/powerpc/pmu: Add interface test for mmcra_ifm field for conditional branch type

Fri, 10 Jun 2022 13:40:45 +0000

selftests/powerpc/pmu: Add interface test for mmcra_ifm field for conditional branch typeThe testcase uses "instructions" event to check if theInstruction filtering mode(IFM) bits are programmed correctlyfor conditional branch type. Testcase checks if IFM bits isprogrammed correctly to Monitor Mode Control Register A (MMCRA)via perf interface for ISA v3.1 platform.Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-8-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

faa64ddc - selftests/powerpc/pmu: Add interface test for mmcra_ifm field for any branch type

Fri, 10 Jun 2022 13:40:44 +0000

selftests/powerpc/pmu: Add interface test for mmcra_ifm field for any branch typeThe testcase uses "instructions" event to check if theInstruction filtering mode(IFM) bits are programmed correctlyfor type any branch. Testcase checks if IFM bits isprogrammed correctly to Monitor Mode Control Register A (MMCRA)via perf interface.Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-7-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

c55dabc6 - selftests/powerpc/pmu: Add interface test for mmcra_ifm field of indirect call type

Fri, 10 Jun 2022 13:40:43 +0000

selftests/powerpc/pmu: Add interface test for mmcra_ifm field of indirect call typeThe testcase uses "instructions" event to check if theInstruction filtering mode(IFM) bits are programmed correctlyfor indirect branch type. Testcase checks if IFM bits areprogrammed correctly to Monitor Mode Control Register A (MMCRA)via perf interface for ISA v3.1 platform.Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-6-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

50d9c30a - selftests/powerpc/pmu: Add interface test for mmcra_thresh_cmp fields

Fri, 10 Jun 2022 13:40:41 +0000

selftests/powerpc/pmu: Add interface test for mmcra_thresh_cmp fieldsThe testcase uses event code 0x35340401e0 for load only sampling, toverify the settings of thresh compare field in Monitor Mode ControlRegister A (MMCRA: 9-18 bits for power9 and MMCRA: 8-18 bits forpower10). Testcase checks if the thresh compare field is programmedcorrectly via perf interface to MMCRA register.Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-4-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

29cf373c - selftests/powerpc/pmu: Add interface test for mmcra register fields

Thu, 27 Jan 2022 07:20:12 +0000

selftests/powerpc/pmu: Add interface test for mmcra register fieldsThe testcase uses event code 0x35340401e0 to verify the settings fordifferent fields in Monitor Mode Control Register A (MMCRA). The fieldsinclude thresh_start, thresh_stop thresh_select, sdar mode, sample andmarked bit. Checks if these fields are translated correctly via perfinterface to MMCRA.Signed-off-by: Kajol Jain [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-21-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

02f02feb - selftests/powerpc/pmu/: Add interface test for mmcr3_src fields

Thu, 27 Jan 2022 07:20:11 +0000

selftests/powerpc/pmu/: Add interface test for mmcr3_src fieldsThe testcase uses event code 0x1340000001c040 to verify the settings fordifferent src fields in Monitor Mode Control Register 3 (MMCR3). Checksif these fields are translated correctly via perf interface to MMCR3 onISA v3.1 platform.Signed-off-by: Kajol Jain [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-20-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

9ee241f1 - selftests/powerpc/pmu/: Add interface test for mmcr2_fcs_fch fields

Thu, 27 Jan 2022 07:20:10 +0000

selftests/powerpc/pmu/: Add interface test for mmcr2_fcs_fch fieldsThe testcases uses cycles event to verify the freeze counter settings inMonitor Mode Control Register 2 (MMCR2). Event modifier (exclude_kernel)setting is used for the event attribute to check the FCxS and FCxH (Freeze counter in privileged and hypervisor state ) settings via perfinterface.Signed-off-by: Madhavan Srinivasan [mpe: Add error checking, check MSR for MSR_HV, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-19-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

ac575b26 - selftests/powerpc/pmu/: Add interface test for mmcr2_l2l3 field

Thu, 27 Jan 2022 07:20:09 +0000

selftests/powerpc/pmu/: Add interface test for mmcr2_l2l3 fieldThe testcases uses event code 0x010000046080 to verify the l2l3 bitsetting for Monitor Mode Control Register 2 (MMCR2). check if this bitis set correctly via perf interface in ISA v3.1 platform.Signed-off-by: Madhavan Srinivasan [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-18-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

2becea3b - selftests/powerpc/pmu/: Add interface test for mmcr1_comb field

Thu, 27 Jan 2022 07:20:07 +0000

selftests/powerpc/pmu/: Add interface test for mmcr1_comb fieldThe testcase uses event code "0x26880" to verify the settings fordifferent fields in Monitor Mode Control Register 1 (MMCR1). The fieldinclude PMCxCOMB. Checks if this field are translated correctly via perfinterface to MMCR1Add selftest for mmcr1 comb field.Signed-off-by: Athira Rajeev [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-16-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

6e11374b - selftests/powerpc/pmu/: Add interface test for mmcr0_pmc56 using pmc5

Thu, 27 Jan 2022 07:20:06 +0000

selftests/powerpc/pmu/: Add interface test for mmcr0_pmc56 using pmc5The testcase uses event code 0x500fa to verify the FC5-6 bit setting inMonitor Mode Control Register 0 (MMCR0). Check if FC5-6 bit is not setin MMCR0 when using Performance Monitor Counter 5 and 6 (PMC5 and PMC6).Signed-off-by: Athira Rajeev [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-15-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

d5172f25 - selftests/powerpc/pmu/: Add interface test for mmcr0_fc56 field using pmc1

Thu, 27 Jan 2022 07:20:05 +0000

selftests/powerpc/pmu/: Add interface test for mmcr0_fc56 field using pmc1The testcase uses event code 0x1001e to verify two bit settings (FC5-6and PMC1CE) in Monitor Mode Control Register 0 (MMCR0). Check if FC5-6bit to be set in MMCR0 when not using Performance Monitor Counter 5 and6 (PMC5 and PMC6). And also PMC1CE is expected to be set when usingPMC1. Test if these fields are programmed correctly via perf interface.Signed-off-by: Athira Rajeev [mpe: Add error checking, drop GET_MMCR_FIELD, add to .gitignore]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-14-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile