kernel/linux.git/tools/testing/selftests/powerpc, branch v5.4.119

selftests/powerpc: Make the test check in eeh-basic.sh posix compliant

2021-03-04T09:26:26+00:00

[ Upstream commit 3db380570af7052620ace20c29e244938610ca71 ] The == operand is a bash extension, thus this will fail on Ubuntu with: ./eeh-basic.sh: 89: test: 2: unexpected operator As the /bin/sh on Ubuntu is pointed to DASH. Use -eq to fix this posix compatibility issue. Fixes: 996f9e0f93f162 ("selftests/powerpc: Fix eeh-basic.sh exit codes") Signed-off-by: Po-Hsu Lin Reviewed-by: Frederic Barrat Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20201228043459.14281-1-po-hsu.lin@canonical.com Signed-off-by: Sasha Levin

selftests/powerpc: Only test lwm/stmw on big endian

2021-02-07T14:35:49+00:00

[ Upstream commit dd3a44c06f7b4f14e90065bf05d62c255b20005f ] Newer binutils (>= 2.36) refuse to assemble lmw/stmw when building in little endian mode. That breaks compilation of our alignment handler test: /tmp/cco4l14N.s: Assembler messages: /tmp/cco4l14N.s:1440: Error: `lmw' invalid when little-endian /tmp/cco4l14N.s:1814: Error: `stmw' invalid when little-endian make[2]: *** [../../lib.mk:139: /output/kselftest/powerpc/alignment/alignment_handler] Error 1 These tests do pass on little endian machines, as the kernel will still emulate those instructions even when running little endian (which is arguably a kernel bug). But we don't really need to test that case, so ifdef those instructions out to get the alignment test building again. Reported-by: Libor Pechacek Signed-off-by: Michael Ellerman Tested-by: Libor Pechacek Link: https://lore.kernel.org/r/20210119041800.3093047-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin

selftests/powerpc: entry flush test

2020-11-22T09:14:11+00:00

commit 89a83a0c69c81a25ce91002b90ca27ed86132a0a upstream. Add a test modelled on the RFI flush test which counts the number of L1D misses doing a simple syscall with the entry flush on and off. For simplicity of backporting, this test duplicates a lot of code from the upstream rfi_flush. This is cleaned up upstream, but we don't clean it up here because it would involve bringing in even more commits. Signed-off-by: Daniel Axtens Signed-off-by: Greg Kroah-Hartman

selftests/powerpc: rfi_flush: disable entry flush if present

2020-11-22T09:14:10+00:00

commit fcb48454c23c5679d1a2e252f127642e91b05cbe upstream. We are about to add an entry flush. The rfi (exit) flush test measures the number of L1D flushes over a syscall with the RFI flush enabled and disabled. But if the entry flush is also enabled, the effect of enabling and disabling the RFI flush is masked. If there is a debugfs entry for the entry flush, disable it during the RFI flush and restore it later. Reported-by: Spoorthy S Signed-off-by: Russell Currey Signed-off-by: Daniel Axtens Signed-off-by: Greg Kroah-Hartman

selftests/powerpc: Fix eeh-basic.sh exit codes

2020-10-29T08:57:52+00:00

[ Upstream commit 996f9e0f93f16211945c8d5f18f296a88cb32f91 ] The kselftests test running infrastructure expects tests to finish with an exit code of 4 if the test decided it should be skipped. Currently eeh-basic.sh exits with the number of devices that failed to recover, so if four devices didn't recover we'll report a skip instead of a fail. Fix this by checking if the return code is non-zero and report success and failure by returning 0 or 1 respectively. For the cases where should actually skip return 4. Fixes: 85d86c8aa52e ("selftests/powerpc: Add basic EEH selftest") Signed-off-by: Oliver O'Halloran Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20201014024711.1138386-1-oohall@gmail.com Signed-off-by: Sasha Levin

selftests/powerpc: Purge extra count_pmc() calls of ebb selftests

2020-09-03T09:26:44+00:00

[ Upstream commit 3337bf41e0dd70b4064cdf60acdfcdc2d050066c ] An extra count on ebb_state.stats.pmc_count[PMC_INDEX(pmc)] is being per- formed when count_pmc() is used to reset PMCs on a few selftests. This extra pmc_count can occasionally invalidate results, such as the ones from cycles_test shown hereafter. The ebb_check_count() failed with an above the upper limit error due to the extra value on ebb_state.stats.pmc_count. Furthermore, this extra count is also indicated by extra PMC1 trace_log on the output of the cycle test (as well as on pmc56_overflow_test): ========== ... [21]: counter = 8 [22]: register SPRN_MMCR0 = 0x0000000080000080 [23]: register SPRN_PMC1 = 0x0000000080000004 [24]: counter = 9 [25]: register SPRN_MMCR0 = 0x0000000080000080 [26]: register SPRN_PMC1 = 0x0000000080000004 [27]: counter = 10 [28]: register SPRN_MMCR0 = 0x0000000080000080 [29]: register SPRN_PMC1 = 0x0000000080000004 >> [30]: register SPRN_PMC1 = 0x000000004000051e PMC1 count (0x280000546) above upper limit 0x2800003e8 (+0x15e) [FAIL] Test FAILED on line 52 failure: cycles ========== Signed-off-by: Desnes A. Nunes do Rosario Tested-by: Sachin Sant Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200626164737.21943-1-desnesn@linux.ibm.com Signed-off-by: Sasha Levin

selftests/powerpc: ptrace-pkey: Don't update expected UAMOR value

2020-08-21T11:05:33+00:00

[ Upstream commit 3563b9bea0ca7f53e4218b5e268550341a49f333 ] With commit 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation must not change pkey registers") we are not updating UAMOR on key allocation. So don't update the expected uamor value in the test. Fixes: 4a4a5e5d2aad ("powerpc/pkeys: key allocation/deallocation must not change pkey registers") Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200709032946.881753-23-aneesh.kumar@linux.ibm.com Signed-off-by: Sasha Levin

selftests/powerpc: ptrace-pkey: Update the test to mark an invalid pkey correctly

2020-08-21T11:05:33+00:00

[ Upstream commit 0eaa3b5ca7b5a76e3783639c828498343be66a01 ] Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200709032946.881753-22-aneesh.kumar@linux.ibm.com Signed-off-by: Sasha Levin

selftests/powerpc: ptrace-pkey: Rename variables to make it easier to follow code

2020-08-21T11:05:33+00:00

[ Upstream commit 9a11f12e0a6c374b3ef1ce81e32ce477d28eb1b8 ] Rename variable to indicate that they are invalid values which we will use to test ptrace update of pkeys. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200709032946.881753-21-aneesh.kumar@linux.ibm.com Signed-off-by: Sasha Levin

selftests/powerpc: Fix online CPU selection

2020-08-19T06:16:18+00:00

[ Upstream commit dfa03fff86027e58c8dba5c03ae68150d4e513ad ] The size of the CPU affinity mask must be large enough for systems with a very large number of CPUs. Otherwise, tests which try to determine the first online CPU by calling sched_getaffinity() will fail. This makes sure that the size of the allocated affinity mask is dependent on the number of CPUs as reported by get_nprocs_conf(). Fixes: 3752e453f6ba ("selftests/powerpc: Add tests of PMU EBBs") Reported-by: Shirisha Ganta Signed-off-by: Sandipan Das Reviewed-by: Kamalesh Babulal Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/a408c4b8e9a23bb39b539417a21eb0ff47bb5127.1596084858.git.sandipan@linux.ibm.com Signed-off-by: Sasha Levin