linux-toradex.git/tools/testing/selftests/powerpc/utils.h, branch v4.9 Linux kernel for Apalis and Colibri modules selftests/powerpc: Allow tests to extend their kill timeout 2016-10-04T09:10:13+00:00 Cyril Bur cyrilbur@gmail.com 2016-09-23T06:18:17+00:00 0886c6d4d21edc9902adfbf02e6e74916287ae04 Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Compile selftests against headers without AT_HWCAP2 2016-09-23T12:36:05+00:00 Cyril Bur cyrilbur@gmail.com 2016-09-23T06:18:07+00:00 96c447077c2f66ed4117fd832a84c40265dbd9f2 It might be nice to compile selftests against older kernels and headers but which may not have HWCAP2. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
It might be nice to compile selftests against older kernels and
headers but which may not have HWCAP2.

Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Add a test for PROT_SAO 2016-07-14T10:26:25+00:00 Michael Ellerman mpe@ellerman.id.au 2016-07-11T05:25:18+00:00 24af8c5a52a70bbfd275f59836feadd9b9ebc83b PROT_SAO is a powerpc-specific flag to mmap(), and we rely on arch specific logic to allow it to be passed to mmap(). Add a small test to ensure mmap() accepts PROT_SAO. We don't have a good way to test that it actually causes the mapping to be created with the right flags, so for now we just touch the mapping so it's faulted in. In future we might be able to do something better. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
PROT_SAO is a powerpc-specific flag to mmap(), and we rely on arch
specific logic to allow it to be passed to mmap().

Add a small test to ensure mmap() accepts PROT_SAO. We don't have a good
way to test that it actually causes the mapping to be created with the
right flags, so for now we just touch the mapping so it's faulted in. In
future we might be able to do something better.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Make reg.h common to all powerpc selftests 2016-05-11T11:54:12+00:00 Rashmica Gupta rashmicy@gmail.com 2015-12-23T05:49:50+00:00 2d59b3b25659463a24f05df367574d90b3cd7145 Currently there is a reg.h in pmu/ebb that has defines that are useful in other powerpc selftests so move this up into selftests/powerpc folder. Also include in utils.h - as this is often used in self tests. Add in some other useful register defines. Signed-off-by: Rashmica Gupta <rashmicy@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Currently there is a reg.h in pmu/ebb that has defines that are useful
in other powerpc selftests so move this up into selftests/powerpc
folder. Also include in utils.h - as this is often used in self tests.
Add in some other useful register defines.

Signed-off-by: Rashmica Gupta <rashmicy@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Test cp_abort during context switch 2016-05-11T11:54:01+00:00 Chris Smart chris@distroguy.com 2016-05-02T03:51:38+00:00 438517ec78fa4e9db9892e749ed50e2a21f5f17f Test that performing a copy paste sequence in userspace on P9 does not result in a leak of the copy into the paste of another process. This is based on Anton Blanchard's context_switch benchmarking code. It sets up two processes tied to the same CPU, one which copies and one which pastes. The paste should never succeed and the test fails if it does. This is a test for commit, "8a64904 powerpc: Add support for userspace P9 copy paste." Patch created with much assistance from Michael Neuling <mikey@neuling.org> Signed-off-by: Chris Smart <chris@distroguy.com> Reviewed-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Test that performing a copy paste sequence in userspace on P9 does not
result in a leak of the copy into the paste of another process.

This is based on Anton Blanchard's context_switch benchmarking code. It
sets up two processes tied to the same CPU, one which copies and one
which pastes.

The paste should never succeed and the test fails if it does.

This is a test for commit, "8a64904 powerpc: Add support for userspace
P9 copy paste."

Patch created with much assistance from Michael Neuling
<mikey@neuling.org>

Signed-off-by: Chris Smart <chris@distroguy.com>
Reviewed-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Move pick_online_cpu() up into utils.c 2015-12-16T23:46:41+00:00 Michael Ellerman mpe@ellerman.id.au 2015-12-16T07:59:31+00:00 d1301afd71bd38b1610b391e50debf766faa84be We want to use this in another test, so make it available at the top of the powerpc selftests tree. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
We want to use this in another test, so make it available at the top of
the powerpc selftests tree.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Add have_hwcap2() helper 2015-12-14T09:41:47+00:00 Michael Ellerman mpe@ellerman.id.au 2015-11-24T02:05:39+00:00 ede8ef3f824ea6e853a5e4b27467f583cdaa314e We already do this twice and want to add another so add a helper. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
We already do this twice and want to add another so add a helper.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Move get_auxv_entry() to harness.c 2015-04-11T10:49:20+00:00 Sam bobroff sam.bobroff@au1.ibm.com 2015-04-10T04:16:48+00:00 2b03fc1db59d53da327cf21f77e189b4d0a8aced Move get_auxv_entry() from pmu/lib.c up to harness.c in order to make it available to other tests. Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Move get_auxv_entry() from pmu/lib.c up to harness.c in order to make
it available to other tests.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Add test for VPHN 2015-03-17T23:49:00+00:00 Greg Kurz gkurz@linux.vnet.ibm.com 2015-02-23T15:14:44+00:00 58dae82843f508b0f1e7e8e593496ba6e2822979 The goal is to verify vphn_unpack_associativity() parses VPHN numbers correctly. We feed it with a variety of input values and compare with expected results. PAPR+ does not say much about VPHN parsing: I came up with a list of tests that check many simple cases and some corner ones. I wouldn't dare to say the list is exhaustive though. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> [mpe: Rework harness logic, rename to test-vphn, add -m64] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com> 
The goal is to verify vphn_unpack_associativity() parses VPHN numbers
correctly. We feed it with a variety of input values and compare with
expected results.

PAPR+ does not say much about VPHN parsing: I came up with a list of
tests that check many simple cases and some corner ones. I wouldn't
dare to say the list is exhaustive though.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
[mpe: Rework harness logic, rename to test-vphn, add -m64]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
selftests/powerpc: Add support for skipping tests 2014-06-11T07:03:54+00:00 Michael Ellerman mpe@ellerman.id.au 2014-06-10T12:23:09+00:00 33b4819f3b93bbcb934e02cbc64ff3c5e9d0149b Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>