See the first patch for a description of the reasoning behind this change.
This set includes the change, a kernel selftest for it and some slight refactoring of the selftest code. v3: Patch 1/4: powerpc/tm: Abort syscalls in active transactions Use "TABORT()" macro to allow building on versions of gcc that don't support the "tabort." instruction. v2: Patch 1/4: powerpc/tm: Abort syscalls in active transactions Also update the failure code table. Patch 3/4: selftests/powerpc: Add transactional syscall test Further testing has shown that the success or failure of the transactions was affected by minor changes to the code, compiler optimisation and linker settings. To address this, I've moved the transactional part of the test to a separate function, written in assembly. I've also extended the test to as many transactions as it can fit into ten seconds, to better test for failures that occur more rarely. This has stabilised the results, and it's no longer necessary to use special compiler or linker flags. Patch 4/4: powerpc/tm: Correct minor documentation typos Discovered some typos while updating the documentation. Sam Bobroff (4): powerpc/tm: Abort syscalls in active transactions selftests/powerpc: Move get_auxv_entry() to harness.c selftests/powerpc: Add transactional syscall test powerpc/tm: Correct minor documentation typos Documentation/powerpc/transactional_memory.txt | 36 +++---- arch/powerpc/include/uapi/asm/tm.h | 2 +- arch/powerpc/kernel/entry_64.S | 19 ++++ tools/testing/selftests/powerpc/harness.c | 47 +++++++++ tools/testing/selftests/powerpc/pmu/lib.c | 47 --------- tools/testing/selftests/powerpc/pmu/lib.h | 1 - tools/testing/selftests/powerpc/tm/.gitignore | 1 + tools/testing/selftests/powerpc/tm/Makefile | 4 +- .../testing/selftests/powerpc/tm/tm-syscall-asm.S | 27 +++++ .../testing/selftests/powerpc/tm/tm-syscall-asm.h | 2 + tools/testing/selftests/powerpc/tm/tm-syscall.c | 109 ++++++++++++++++++++ tools/testing/selftests/powerpc/utils.h | 2 +- 12 files changed, 228 insertions(+), 69 deletions(-) create mode 100644 tools/testing/selftests/powerpc/tm/tm-syscall-asm.S create mode 100644 tools/testing/selftests/powerpc/tm/tm-syscall-asm.h create mode 100644 tools/testing/selftests/powerpc/tm/tm-syscall.c -- 1.7.10.4 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev