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2017-01-05selftests: remove duplicated all and clean targetbamvor.zhangjian@huawei.com1-8/+3
Currently, kselftest use TEST_PROGS, TEST_PROGS_EXTENDED, TEST_FILES to indicate the test program, extended test program and test files. It is easy to understand the purpose of these files. But mix of compiled and uncompiled files lead to duplicated "all" and "clean" targets. In order to remove the duplicated targets, introduce TEST_GEN_PROGS, TEST_GEN_PROGS_EXTENDED, TEST_GEN_FILES to indicate the compiled objects. Also, the later patch will make use of TEST_GEN_XXX to redirect these files to output directory indicated by KBUILD_OUTPUT or O. And add this changes to "Contributing new tests(details)" of Documentation/kselftest.txt. Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-11-17selftests/powerpc: Move shared headers into new include dirSimon Guo1-1/+1
There are some functions, especially register related, which can be shared across multiple selftests/powerpc test directories. This patch creates a new include directory to store those shared files, so that the file layout becomes more neat. Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> [mpe: Reworked to move the headers only] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-14selftests/powerpc: Add Anton's null_syscall benchmark to the selftestsAnton Blanchard3-2/+160
Pull in a version of Anton's null_syscall benchmark: http://ozlabs.org/~anton/junkcode/null_syscall.c Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Anton Blanchard <anton@au.ibm.com> Signed-off-by: Rui Teng <rui.teng@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-05selftests/powerpc: Import Anton's mmap & futex micro benchmarksMichael Ellerman4-1/+86
These are useful little loops for smoke testing performance. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-05selftests/powerpc: Fix generation of vector instructions/types in context_switchCyril Bur2-3/+9
Currently it doesn't appear the resulting binary actually uses any Altivec or VSX instructions the solution is to explicitly tell GCC to use vector instructions and use vector types in the code. Part of this this issue can be GCC version specific: GCC 4.9.x is happy to use Altivec and VSX instructions if altivec.h is includedi (and possibly if vector types are used), this also means that 4.9.x will use VSX instructions even if only -maltivec is passed. It is also possible that Altivec instructions will be used even without -maltivec or -mabi=altivec. GCC 5.2.x complains about the lack of -maltivec parameter if altivec.h is included and will not use VSX unless -mvsx is present on commandline. GCC 5.3.0 has a regression that means __attribute__((__target__("no-vsx")) fails to build. A fix is targeted for 5.4. Furthermore LTO (Link Time Optimisation) doesn't play well with __attribute__((__target__("no-vsx")), LTO can cause GCC to forget about the attribute and compile with VSX instructions regardless. Be wary when enabling -flfo for this test. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-05selftests/powerpc: Fix usage message in context_switchCyril Bur1-3/+3
When we inverted the behaviour of the flags we forgot to update the usage message. Fixes: 51c21e72eb99 ("selftests/powerpc: Make context_switch touch FP/altivec/vector by default") Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-12-17selftests/powerpc: Make context_switch touch FP/altivec/vector by defaultMichael Ellerman1-6/+6
Simply because it touches more code paths that way, and therefore tests more things. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Anton Blanchard <anton@samba.org>
2015-12-17selftests/powerpc: Make context_switch do something with no argsMichael Ellerman2-9/+24
For ease of use make the context_switch test do something useful when called with no arguments. Default to a 30 second run, using threads, doing yield, and use any online cpu. Make it print out what it's doing to avoid confusion. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Anton Blanchard <anton@samba.org>
2015-12-17selftests/powerpc: Import Anton's context_switch2 benchmarkMichael Ellerman3-1/+456
This gets referred to a lot in commit messages, so let's pull it into the selftests. Almost vanilla from: http://ozlabs.org/~anton/junkcode/context_switch2.c Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Anton Blanchard <anton@samba.org>
2015-10-01powerpc/selftest: Add gettimeofday() benchmarkMichael Neuling3-0/+44
This adds a benchmark directory to the powerpc selftests and adds a gettimeofday() benchmark to it. Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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