kernel.git/tools/testing/selftests/powerpc/tm, branch linux-4.20.y

Merge branch 'fixes' into next

2018-10-09T05:51:05Z

Merge our fixes branch. It has a few important fixes that are needed for futher testing and also some commits that will conflict with content in next.

selftests/powerpc: Fix Makefiles for headers_install change

2018-09-28T05:07:45Z

Commit b2d35fa5fc80 ("selftests: add headers_install to lib.mk") introduced a requirement that Makefiles more than one level below the selftests directory need to define top_srcdir, but it didn't update any of the powerpc Makefiles. This broke building all the powerpc selftests with eg: make[1]: Entering directory '/src/linux/tools/testing/selftests/powerpc' BUILD_TARGET=/src/linux/tools/testing/selftests/powerpc/alignment; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C alignment all make[2]: Entering directory '/src/linux/tools/testing/selftests/powerpc/alignment' ../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory make[2]: *** No rule to make target '../../../../scripts/subarch.include'. make[2]: Failed to remake makefile '../../../../scripts/subarch.include'. Makefile:38: recipe for target 'alignment' failed Fix it by setting top_srcdir in the affected Makefiles. Fixes: b2d35fa5fc80 ("selftests: add headers_install to lib.mk") Signed-off-by: Michael Ellerman

selftests/powerpc: Do not fail with reschedule

2018-09-19T11:58:09Z

There are cases where the test is not expecting to have the transaction aborted, but, the test process might have been rescheduled, either in the OS level or by KVM (if it is running on a KVM guest machine). The process reschedule will cause a treclaim/recheckpoint which will cause the transaction to doom, aborting the transaction as soon as the process is rescheduled back to the CPU. This might cause the test to fail, but this is not a failure in essence. If that is the case, TEXASR[FC] is indicated with either TM_CAUSE_RESCHEDULE or TM_CAUSE_KVM_RESCHEDULE for KVM interruptions. In this scenario, ignore these two failures and avoid the whole test to return failure. Signed-off-by: Breno Leitao Reviewed-by: Gustavo Romero Signed-off-by: Michael Ellerman

powerpc/selftests: Wait all threads to join

2018-09-17T11:17:25Z

Test tm-tmspr might exit before all threads stop executing, because it just waits for the very last thread to join before proceeding/exiting. This patch makes sure that all threads that were created will join before proceeding/exiting. This patch also guarantees that the amount of threads being created is equal to thread_num. Signed-off-by: Breno Leitao Signed-off-by: Michael Ellerman

selftests/powerpc: Only run some tests on ppc64le

2018-08-07T11:49:25Z

These tests are currently failing on (some) big endian systems. Until we can fix that, skip them unless we're on ppc64le. Signed-off-by: Michael Ellerman

selftests/powerpc: Add missing .gitignores

2018-05-24T14:08:25Z

Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman

Merge branch 'fixes' into next

2018-03-28T11:59:50Z

Merge our fixes branch from the 4.16 cycle. There were a number of important fixes merged, in particular some Power9 workarounds that we want in next for testing purposes. There's also been some conflicting changes in the CPU features code which are best merged and tested before going upstream.

selftests/powerpc: Skip tm-unavailable if TM is not enabled

2018-03-13T04:10:15Z

Some processor revisions do not support transactional memory, and additionally kernel support can be disabled. In either case the tm-unavailable test should be skipped, otherwise it will fail with a SIGILL. That commit also sets this selftest to be called through the test harness as it's done for other TM selftests. Finally, it avoids using "ping" as a thread name since it's ambiguous and can be confusing when shown, for instance, in a kernel backtrace log. Fixes: 77fad8bfb1d2 ("selftests/powerpc: Check FP/VEC on exception in TM") Signed-off-by: Gustavo Romero Reviewed-by: Cyril Bur Signed-off-by: Michael Ellerman

selftest/powerpc: Add test for sigreturn in transaction

2018-03-13T04:10:14Z

Ensure that kernel is throwing away the suspended transaction when sigreturn() is called otherwise it if fails to restore the signal frame's TM SPRS. Signed-off-by: Laurent Dufour Reviewed-by: Cyril Bur [mpe: Add have_htm() check, minor formatting, add SPDX tag] Signed-off-by: Michael Ellerman

selftests/powerpc: Fix missing clean of pmu/lib.o

2018-02-28T11:28:35Z

The tm-resched-dscr test links against pmu/lib.o, but we don't have a rule to clean pmu/lib.o. This can lead to a build break if you build for big endian and then little, or vice versa. Fix it by making tm-resched-dscr depend on pmu/lib.c, causing the code to be built directly in, meaning no .o is generated. Signed-off-by: Michael Ellerman