kernel/linux.git/tools/testing/selftests/powerpc/tm, branch v6.12.80

selftests/powerpc: make sub-folders buildable on their own

2024-04-29T13:54:42+00:00

Build breaks when executing make with run_tests for sub-folders under powerpc. This is because, CFLAGS and GIT_VERSION macros are defined in Makefile of toplevel powerpc folder. make: Entering directory '/home/maddy/linux/tools/testing/selftests/powerpc/mm' gcc hugetlb_vs_thp_test.c ../harness.c ../utils.c -o /home/maddy/selftest_output//hugetlb_vs_thp_test hugetlb_vs_thp_test.c:6:10: fatal error: utils.h: No such file or directory 6 | #include "utils.h" | ^~~~~~~~~ compilation terminated. Fix this by adding the flags.mk in each sub-folder Makefile. Also remove the CFLAGS and GIT_VERSION macros from powerpc/ folder Makefile since the same is definied in flags.mk Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229093711.581230-3-maddy@linux.ibm.com

selftests/powerpc: Fix incorrect kernel headers search path

2023-02-15T11:41:00+00:00

Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Cc: stable@vger.kernel.org # v5.18+ Signed-off-by: Mathieu Desnoyers Acked-by: Shuah Khan Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20230127135755.79929-22-mathieu.desnoyers@efficios.com

selftests/powerpc: Add scv versions of the basic TM syscall tests

2021-09-13T12:34:11+00:00

The basic TM vs syscall test code hard codes an sc instruction for the system call, which fails to cover scv even when the userspace libc has support for it. Duplicate the tests with hard coded scv variants so both are tested when possible. Signed-off-by: Nicholas Piggin [mpe: Fix build on old toolchains by using .long for scv] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210903125707.1601269-2-npiggin@gmail.com

selftests: Skip TM tests on synthetic TM implementations

2021-08-26T11:21:06+00:00

Transactional Memory was removed from the architecture in ISA v3.1. For threads running in P8/P9 compatibility mode on P10 a synthetic TM implementation is provided. In this implementation, tbegin. always sets cr0 eq meaning the abort handler is always called. This is not an issue as users of TM are expected to have a fallback non transactional way to make forward progress in the abort handler. The TEXASR indicates if a transaction failure is due to a synthetic implementation. Some of the TM self tests need a non-degenerate TM implementation for their testing to be meaningful so check for a synthetic implementation and skip the test if so. Signed-off-by: Jordan Niethe Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210729041317.366612-2-jniethe5@gmail.com

selftests/powerpc: Remove duplicated include from tm-poison.c

2021-08-17T23:38:30+00:00

Remove duplicated include. Reported-by: Hulk Robot Signed-off-by: Zheng Yongjun Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210326064808.3262568-1-zhengyongjun3@huawei.com

selftests/powerpc: Fix duplicate included pthread.h

2021-05-23T10:51:34+00:00

Clean up the following includecheck warning: ./tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c: pthread.h is included more than once. No functional change. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1620903820-68213-1-git-send-email-jiapeng.chong@linux.alibaba.com

selftests/powerpc: unmark non-kernel-doc comments

2021-03-29T02:22:18+00:00

Drop the 'beginning of kernel-doc' notation markers (/**) in places that are not in kernel-doc format. Signed-off-by: Randy Dunlap Reviewed-by: Daniel Axtens Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210325200820.16594-1-rdunlap@infradead.org

selftests/powerpc: Include asm/cputable.h from utils.h

2020-09-08T12:23:59+00:00

utils.h provides have_hwcap() and have_hwcap2() which check for a feature bit. Those bits are defined in asm/cputable.h, so include it in utils.h so users of utils.h don't have to do it manually. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200819015727.1977134-4-mpe@ellerman.id.au

selftests/powerpc: Run tm-tmspr test for longer

2020-09-08T12:23:49+00:00

This test creates some threads, which write to TM SPRs, and then makes sure the registers maintain the correct values across context switches and contention with other threads. But currently the test finishes almost instantaneously, which reduces the chance of it hitting an interesting condition. So increase the number of loops, so it runs a bit longer, though still less than 2s on a Power8. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200813013445.686464-3-mpe@ellerman.id.au

selftests/powerpc: Don't use setaffinity in tm-tmspr

2020-09-08T12:23:46+00:00

This test tries to set affinity to CPUs that don't exist, especially if the set of online CPUs doesn't start at 0. But there's no real reason for it to use setaffinity in the first place, it's just trying to create lots of threads to cause contention. So drop the setaffinity entirely. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200813013445.686464-2-mpe@ellerman.id.au