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68877ff2 |
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24-Jul-2023 |
Benjamin Gray <bgray@linux.ibm.com> |
selftests/powerpc/ptrace: Explain why tests are skipped Many tests require specific hardware features/configurations that a typical machine might not have. As a result, it's common to see a test is skipped. But it is tedious to find out why a test is skipped when all it gives is the file location of the skip macro. Convert SKIP_IF() to SKIP_IF_MSG(), with appropriate descriptions of why the test is being skipped. This gives a general idea of why a test is skipped, which can be looked into further if it doesn't make sense. Signed-off-by: Benjamin Gray <bgray@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230725005841.28854-3-bgray@linux.ibm.com
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26009592 |
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21-Nov-2022 |
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> |
selftests/powerpc: Account for offline cpus in perf-hwbreak test For systemwide tests, use online cpu mask to only open events on online cpus. This enables this test to work on systems in lower SMT modes. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/15fd447dcefd19945a7d31f0a475349f548a3603.1669096083.git.naveen.n.rao@linux.vnet.ibm.com
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616ad3f4 |
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21-Nov-2022 |
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> |
selftests/powerpc: Bump up rlimit for perf-hwbreak test The systemwide perf hardware breakpoint test tries to open a perf event on each cpu. On large systems, we run out of file descriptors and fail the test. Instead, have the test set the file descriptor limit to an arbitraty high value. Reported-by: Rohan Deshpande <rohan_d@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/187fed5843cecc1e5066677b6296ee88337d7bef.1669096083.git.naveen.n.rao@linux.vnet.ibm.com
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71ae6305 |
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21-Nov-2022 |
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> |
selftests/powerpc: Move perror closer to its use Right now, if perf_event_open() fails for the systemwide tests, error report is printed too late, sometimes after subsequent system calls. Move use of perror() to the main function, just after the syscall. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/372ac78c27899f1f612fbd6ac796604a4a9310aa.1669096083.git.naveen.n.rao@linux.vnet.ibm.com
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c65c64cc |
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12-Apr-2021 |
Ravi Bangoria <ravi.bangoria@linux.ibm.com> |
powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR Extend perf-hwbreak.c selftest to test multiple DAWRs. Also add testcase for testing 512 byte boundary removal. Sample o/p: # ./perf-hwbreak ... TESTED: Process specific, Two events, diff addr TESTED: Process specific, Two events, same addr TESTED: Process specific, Two events, diff addr, one is RO, other is WO TESTED: Process specific, Two events, same addr, one is RO, other is WO TESTED: Systemwide, Two events, diff addr TESTED: Systemwide, Two events, same addr TESTED: Systemwide, Two events, diff addr, one is RO, other is WO TESTED: Systemwide, Two events, same addr, one is RO, other is WO TESTED: Process specific, 512 bytes, unaligned success: perf_hwbreak Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210412112218.128183-4-ravi.bangoria@linux.ibm.com
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c9cb0afb |
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12-Apr-2021 |
Ravi Bangoria <ravi.bangoria@linux.ibm.com> |
powerpc/selftests/perf-hwbreak: Coalesce event creation code perf-hwbreak selftest opens hw-breakpoint event at multiple places for which it has same code repeated. Coalesce that code into a function. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210412112218.128183-3-ravi.bangoria@linux.ibm.com
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dae4ff80 |
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12-Apr-2021 |
Ravi Bangoria <ravi.bangoria@linux.ibm.com> |
powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR Message-ID: <20210412112218.128183-2-ravi.bangoria@linux.ibm.com> (raw) Add selftests to test multiple active DAWRs with ptrace interface. Sample o/p: $ ./ptrace-hwbreak ... PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW ALIGNED, WO, len: 6: Ok PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW UNALIGNED, RO, len: 6: Ok PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, WO, len: 6: Ok PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, RO, len: 6: Ok Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Reviewed-by: Daniel Axtens <dja@axtens.net> [mpe: Fix build on older distros] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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949758a2 |
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17-Oct-2019 |
Ravi Bangoria <ravi.bangoria@linux.ibm.com> |
powerpc/watchpoint: Add DAR outside test in perf-hwbreak.c selftest So far we used to ignore exception if DAR points outside of user specified range. But now we are ignoring it only if actual load/store range does not overlap with user specified range. Include selftests for the same: # ./tools/testing/selftests/powerpc/ptrace/perf-hwbreak ... TESTED: No overlap TESTED: Partial overlap TESTED: Partial overlap TESTED: No overlap TESTED: Full overlap success: perf_hwbreak Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191017093204.7511-7-ravi.bangoria@linux.ibm.com
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2874c5fd |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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9c2d72d4 |
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28-May-2018 |
Michael Neuling <mikey@neuling.org> |
selftests/powerpc: Add perf breakpoint test This tests perf hardware breakpoints (ie PERF_TYPE_BREAKPOINT) on powerpc. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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