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The cgroup selftests suite currently contains tests that validate various
aspects of cgroup, such as validating the expected behavior for memory
controllers, the expected behavior of cgroup.procs, etc. There are no tests
that validate the expected behavior of the cgroup cpu controller.
This patch therefore adds a new test_cpu.c file that will contain cpu
controller testcases. The file currently only contains a single testcase
that validates creating nested cgroups with cgroup.subtree_control
including cpu. Future patches will add more sophisticated testcases that
validate functional aspects of the cpu controller.
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several fixes, cleanups, and enhancements to tests and framework:
- introduce _NULL and _NOT_NULL macros to pointer error checks
- rework kunit_resource allocation policy to fix memory leaks when
caller doesn't specify free() function to be used when allocating
memory using kunit_add_resource() and kunit_alloc_resource() funcs.
- add ability to specify suite-level init and exit functions"
* tag 'linux-kselftest-kunit-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (41 commits)
kunit: tool: Use qemu-system-i386 for i386 runs
kunit: fix executor OOM error handling logic on non-UML
kunit: tool: update riscv QEMU config with new serial dependency
kcsan: test: use new suite_{init,exit} support
kunit: tool: Add list of all valid test configs on UML
kunit: take `kunit_assert` as `const`
kunit: tool: misc cleanups
kunit: tool: minor cosmetic cleanups in kunit_parser.py
kunit: tool: make parser stop overwriting status of suites w/ no_tests
kunit: tool: remove dead parse_crash_in_log() logic
kunit: tool: print clearer error message when there's no TAP output
kunit: tool: stop using a shell to run kernel under QEMU
kunit: tool: update test counts summary line format
kunit: bail out of test filtering logic quicker if OOM
lib/Kconfig.debug: change KUnit tests to default to KUNIT_ALL_TESTS
kunit: Rework kunit_resource allocation policy
kunit: fix debugfs code to use enum kunit_status, not bool
kfence: test: use new suite_{init/exit} support, add .kunitconfig
kunit: add ability to specify suite-level init and exit functions
kunit: rename print_subtest_{start,end} for clarity (s/subtest/suite)
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We're currently using the x86_64 qemu for i386 builds. While this is not
incorrect, it's probably more sensible to use the i386 one, which will
at least fail properly if we accidentally were to build a 64-bit kernel.
Signed-off-by: David Gow <davidgow@google.com>
Tested-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The config for the serial console for riscv,
CONFIG_SERIAL_EARLYCON_RISCV_SBI, added a dependency,
CONFIG_RISCV_SBI_V01, at some point, so add that in to the base arch
config.
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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It's often desirable (particularly in test automation) to run as many
tests as possible. This config enables all the tests which work as
builtins under UML at present, increasing the total tests run from 156
to 342 (not counting 36 'skipped' tests).
They can be run with:
./tools/testing/kunit/kunit.py run
--kunitconfig=./tools/testing/kunit/configs/all_tests_uml.config
This acts as an in-between point between the KUNIT_ALL_TESTS config
(which enables only tests whose dependencies are already enabled), and
the kunit_tool --alltests option, which tries to use allyesconfig,
taking a very long time to build and breaking very often.
Signed-off-by: David Gow <davidgow@google.com>
Tested-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This primarily comes from running pylint over kunit tool code and
ignoring some warnings we don't care about.
If we ever got a fully clean setup, we could add this to run_checks.py,
but we're not there yet.
Fix things like
* Drop unused imports
* check `is None`, not `== None` (see PEP 8)
* remove redundant parens around returns
* remove redundant `else` / convert `elif` to `if` where appropriate
* rename make_arch_qemuconfig() param to base_kunitconfig (this is the
name used in the subclass, and it's a better one)
* kunit_tool_test: check the exit code for SystemExit (could be 0)
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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There should be no behavioral changes from this patch.
This patch removes redundant comment text, inlines a function used in
only one place, and other such minor tweaks.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Consider this invocation
$ ./tools/testing/kunit/kunit.py parse <<EOF
TAP version 14
1..2
ok 1 - suite
# Subtest: no_tests_suite
# catastrophic error!
not ok 1 - no_tests_suite
EOF
It will have a 0 exit code even though there's a "not ok".
Consider this one:
$ ./tools/testing/kunit/kunit.py parse <<EOF
TAP version 14
1..2
ok 1 - suite
not ok 1 - no_tests_suite
EOF
It will a non-zero exit code.
Why?
We have this line in the kunit_parser.py
> parent_test = parse_test_header(lines, test)
where we have special handling when we see "# Subtest" and we ignore the
explicit reported "not ok 1" status!
Also, NO_TESTS at a suite-level only results in a non-zero status code
where then there's only one suite atm.
This change is the minimal one to make sure we don't overwrite it.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This logic depends on the kernel logging a message containing
'kunit test case crashed', but there is no corresponding logic to do so.
This is likely a relic of the revision process KUnit initially went
through when being upstreamed.
Delete it given
1) it's been missing for years and likely won't get implemented
2) the parser has been moving to be a more general KTAP parser,
kunit-only magic like this isn't how we'd want to implement it.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Before:
$ ./tools/testing/kunit/kunit.py parse /dev/null
...
[ERROR] Test : invalid KTAP input!
After:
$ ./tools/testing/kunit/kunit.py parse /dev/null
...
[ERROR] Test <missing>: could not find any KTAP output!
This error message gets printed out when extract_tap_output() yielded no
lines. So while it could be because of malformed KTAP output from KUnit,
it could also be due to not having any KTAP output at all.
Try and make the error message here more clear.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Note: this potentially breaks custom qemu_configs if people are using
them! But the fix for them is simple, don't specify multiple arguments
in one string and don't add on a redundant ''.
It feels a bit iffy to be using a shell in the first place.
There's the usual shenanigans where people could pass in arbitrary shell
commands via --kernel_arg (since we're just adding '' around the
kernel_cmdline) or via a custom qemu_config.
This isn't too much of a concern given the nature of this script (and
the qemu_config file is in python, you can do w/e you want already).
But it does have some other drawbacks.
One example of a kunit-specific pain point:
If the relevant qemu binary is missing, we get output like this:
> /bin/sh: line 1: qemu-system-aarch64: command not found
This in turn results in our KTAP parser complaining about
missing/invalid KTAP, but we don't directly show the error!
It's even more annoying to debug when you consider --raw_output only
shows KUnit output by default, i.e. you need --raw_output=all to see it.
Whereas directly invoking the binary, Python will raise a
FileNotFoundError for us, which is a noisier but more clear.
Making this change requires
* splitting parameters like ['-m 256'] into ['-m', '256'] in
kunit/qemu_configs/*.py
* change [''] to [] in kunit/qemu_configs/*.py since otherwise
QEMU fails w/ 'Device needs media, but drive is empty'
* dropping explicit quoting of the kernel cmdline
* using shlex.quote() when we print what command we're running
so the user can copy-paste and run it
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Before:
> Testing complete. Passed: 137, Failed: 0, Crashed: 0, Skipped: 36, Errors: 0
After:
> Testing complete. Ran 173 tests: passed: 137, skipped: 36
Even with our current set of statuses, the output is a bit verbose.
It could get worse in the future if we add more (e.g. timeout, kasan).
Let's only print the relevant ones.
I had previously been sympathetic to the argument that always
printing out all the statuses would make it easier to parse results.
But now we have commit acd8e8407b8f ("kunit: Print test statistics on
failure"), there are test counts printed out in the raw output.
We don't currently print out an overall total across all suites, but it
would be easy to add, if we see a need for that.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Co-developed-by: David Gow <davidgow@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Before, our help output contained lines like
--kconfig_add KCONFIG_ADD
--qemu_config qemu_config
--jobs jobs
They're not very helpful.
The former kind come from the automatic 'metavar' we get from argparse,
the uppercase version of the flag name.
The latter are where we manually specified metavar as the flag name.
After:
--build_dir DIR
--make_options X=Y
--kunitconfig PATH
--kconfig_add CONFIG_X=Y
--arch ARCH
--cross_compile PREFIX
--qemu_config FILE
--jobs N
--timeout SECONDS
--raw_output [{all,kunit}]
--json [FILE]
This patch tries to make the code more clear by specifying the _type_ of
input we expect, e.g. --build_dir is a DIR, --qemu_config is a FILE.
I also switched it to uppercase since it looked more clearly like
placeholder text that way.
This patch also changes --raw_output to specify `choices` to make it
more clear what the options are, and this way argparse can validate it
for us, as shown by the added test case.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Filling log files with color codes makes diffs and other comparisons
difficult. Only emit vt100 codes when the stdout is a TTY.
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: linux-kselftest@vger.kernel.org
Cc: kunit-dev@googlegroups.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Before, kunit.py always printed "arch": "UM" in its json output, but...
1. With `kunit.py parse`, we could be parsing output from anywhere, so
we can't say that.
2. Capitalizing it is probably wrong, as it's `ARCH=um`
3. Commit 87c9c1631788 ("kunit: tool: add support for QEMU") made it so
kunit.py could knowingly run a different arch, yet we'd still always
claim "UM".
This patch addresses all of those. E.g.
1.
$ ./tools/testing/kunit/kunit.py parse .kunit/test.log --json | grep -o '"arch.*' | sort -u
"arch": "",
2.
$ ./tools/testing/kunit/kunit.py run --json | ...
"arch": "um",
3.
$ ./tools/testing/kunit/kunit.py run --json --arch=x86_64 | ...
"arch": "x86_64",
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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When using --json, kunit.py run/exec/parse will produce results in
KernelCI json format.
As part of that, we include the build_dir that was used, and we
(incorrectly) hardcode in the arch, etc.
We'll want a way to plumb more values (as well as the correct `arch`),
so this patch groups those fields into kunit_json.Metadata type.
This patch should have no user visible changes.
And since we only used build_dir in KunitParseRequest for json, we can
now move it out of that struct and add it into KunitExecRequest, which
needs it and used to get it via inheritance.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Use a more idiomatic check that a list is non-empty (`if mylist:`) and
simplify the function body by dedenting and using a dict to map between
the kunit TestStatus enum => KernelCI json status string.
The dict hopefully makes it less likely to have bugs like commit
9a6bb30a8830 ("kunit: tool: fix --json output for skipped tests").
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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--build_dir is set to a default of '.kunit' since commit ddbd60c779b4
("kunit: use --build_dir=.kunit as default"), but even before then it
was explicitly set to ''.
So outside of one unit test, there was no way for the build_dir to be
ever be None, and we can simplify code by fixing the unit test and
enforcing that via updated type annotations.
E.g. this lets us drop `get_file_path()` since it's now exactly
equivalent to os.path.join().
Note: there's some `if build_dir` checks that also fail if build_dir is
explicitly set to '' that just guard against passing "O=" to make.
But running `make O=` works just fine, so drop these checks.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Since we formally require python3.7+ since commit df4b0807ca1a
("kunit: tool: Assert the version requirement"), we can just use
@dataclasses.dataclass instead.
In kunit_config.py, we used namedtuple to create a hashable type that
had `name` and `value` fields and had to subclass it to define a custom
`__str__()`.
@datalcass lets us just define one type instead.
In qemu_config.py, we use namedtuple to allow modules to define various
parameters. Using @dataclass, we can add type-annotations for all these
fields, making our code more typesafe and making it easier for users to
figure out how to define new configs.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit be886ba90cce ("kunit: run kunit_tool from any directory")
introduced this variable, but it was unused even in that commit.
Since it's still unused now and callers can instead use
get_kernel_root_path(), delete this var.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Currently kunit_json.get_json_result() will output the JSON-ified test
output to json_path, but iff it's not "stdout".
Instead, move the responsibility entirely over to the one caller.
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"Several fixes, cleanups, and enhancements to tests:
- add mips support for kprobe args string and syntax tests
- updates to resctrl test to use kselftest framework
- fixes, cleanups, and enhancements to tests"
* tag 'linux-kselftest-next-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftests/ir : Improve readability of modprobe error message
selftests/resctrl: Fix null pointer dereference on open failed
selftests/resctrl: Add missing SPDX license to Makefile
selftests/resctrl: Update README about using kselftest framework to build/run resctrl_tests
selftests/resctrl: Make resctrl_tests run using kselftest framework
selftests/resctrl: Fix resctrl_tests' return code to work with selftest framework
selftests/resctrl: Change the default limited time to 120 seconds
selftests/resctrl: Kill child process before parent process terminates if SIGTERM is received
selftests/resctrl: Print a message if the result of MBM&CMT tests is failed on Intel CPU
selftests/resctrl: Extend CPU vendor detection
selftests/x86/corrupt_xstate_header: Use provided __cpuid_count() macro
selftests/x86/amx: Use provided __cpuid_count() macro
selftests/vm/pkeys: Use provided __cpuid_count() macro
selftests: Provide local define of __cpuid_count()
selftests/damon: add damon to selftests root Makefile
selftests/binderfs: Improve message to provide more info
selftests: mqueue: drop duplicate min definition
selftests/ftrace: add mips support for kprobe args syntax tests
selftests/ftrace: add mips support for kprobe args string tests
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Improve the readability of error message which says module not found.
The new behaviour is consistent with the modprobe command.
Signed-off-by: Gautam Menghani <gautammenghani201@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Currently if opening /dev/null fails to open then file pointer fp
is null and further access to fp via fprintf will cause a null
pointer dereference. Fix this by returning a negative error value
when a null fp is detected.
Detected using cppcheck static analysis:
tools/testing/selftests/resctrl/fill_buf.c:124:6: note: Assuming
that condition '!fp' is not redundant
if (!fp)
^
tools/testing/selftests/resctrl/fill_buf.c:126:10: note: Null
pointer dereference
fprintf(fp, "Sum: %d ", ret);
Fixes: a2561b12fe39 ("selftests/resctrl: Add built in benchmark")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add the missing SPDX(SPDX-License-Identifier) license header to
tools/testing/selftests/resctrl/Makefile.
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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build/run resctrl_tests
resctrl_tests can be built or run using kselftests framework.
Add description on how to do so in README.
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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In kselftest framework, all tests can be build/run at a time,
and a sub test also can be build/run individually. As follows:
$ make kselftest-all TARGETS=resctrl
$ make -C tools/testing/selftests run_tests
$ make -C tools/testing/selftests TARGETS=resctrl run_tests
However, resctrl_tests cannot be run using kselftest framework,
users have to change directory to tools/testing/selftests/resctrl/,
run "make" to build executable file "resctrl_tests",
and run "sudo ./resctrl_tests" to execute the test.
To build/run resctrl_tests using kselftest framework.
Modify tools/testing/selftests/Makefile
and tools/testing/selftests/resctrl/Makefile.
Even after this change, users can still build/run resctrl_tests
without using framework as before.
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> # resctrl changes
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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framework
In kselftest framework, if a sub test can not run by some reasons,
the test result should be marked as SKIP rather than FAIL.
Return KSFT_SKIP(4) instead of KSFT_FAIL(1) if resctrl_tests is not run
as root or it is run on a test environment which does not support resctrl.
- ksft_exit_fail_msg(): returns KSFT_FAIL(1)
- ksft_exit_skip(): returns KSFT_SKIP(4)
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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When testing on a Intel(R) Xeon(R) Gold 6254 CPU @ 3.10GHz the resctrl
selftests fail due to timeout after exceeding the default time limit of
45 seconds. On this system the test takes about 68 seconds.
Since the failing test by default accesses a fixed size of memory, the
execution time should not vary significantly between different environment.
A new default of 120 seconds should be sufficient yet easy to customize
with the introduction of the "settings" file for reference.
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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SIGTERM is received
In kselftest framework, a sub test is run using the timeout utility
and it will send SIGTERM to the test upon timeout.
In resctrl_tests, a child process is created by fork() to
run benchmark but SIGTERM is not set in sigaction().
If SIGTERM signal is received, the parent process will be killed,
but the child process still exists.
Kill child process before the parent process terminates
if SIGTERM signal is received.
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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on Intel CPU
According to "Intel Resource Director Technology (Intel RDT) on
2nd Generation Intel Xeon Scalable Processors Reference Manual",
When the Intel Sub-NUMA Clustering(SNC) feature is enabled,
Intel CMT and MBM counters may not be accurate.
However, there does not seem to be an architectural way to detect
if SNC is enabled.
If the result of MBM&CMT test fails on Intel CPU,
print a message to let users know a possible cause of failure.
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Currently, the resctrl_tests only has a function to detect AMD vendor.
Since when the Intel Sub-NUMA Clustering feature is enabled,
Intel CMT and MBM counters may not be accurate,
the resctrl_tests also need a function to detect Intel vendor.
And in the future, resctrl_tests will need a function to detect different
vendors, such as Arm.
Extend the function to detect Intel vendor as well. Also,
this function can be easily extended to detect other vendors.
Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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kselftest.h makes the __cpuid_count() macro available
to conveniently call the CPUID instruction.
Remove the local CPUID wrapper and use __cpuid_count()
from kselftest.h instead.
__cpuid_count() from kselftest.h is used instead of the
macro provided by the compiler since gcc v4.4 (via cpuid.h)
because the selftest needs to be supported with gcc v3.2,
the minimal required version for stable kernels.
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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| | | | | | | | | | | | | | | | | | | | | | | |
kselftest.h makes the __cpuid_count() macro available
to conveniently call the CPUID instruction.
Remove the local CPUID wrapper and use __cpuid_count()
from kselftest.h instead.
__cpuid_count() from kselftest.h is used instead of the
macro provided by the compiler since gcc v4.4 (via cpuid.h)
because the selftest needs to be supported with gcc v3.2,
the minimal required version for stable kernels.
Cc: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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| | | | | | | | | | | | | | | | | | | | | | | |
kselftest.h makes the __cpuid_count() macro available
to conveniently call the CPUID instruction.
Remove the local CPUID wrapper and use __cpuid_count()
from already included kselftest.h instead.
__cpuid_count() from kselftest.h is used instead of the
macro provided by the compiler since gcc v4.4 (via cpuid.h)
because the selftest needs to be compiled with gcc v3.2,
the minimal required version for stable kernels.
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: linux-mm@kvack.org
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Some selftests depend on information provided by the CPUID instruction.
To support this dependency the selftests implement private wrappers for
CPUID.
Duplication of the CPUID wrappers should be avoided.
Both gcc and clang/LLVM provide __cpuid_count() macros but neither
the macro nor its header file are available in all the compiler
versions that need to be supported by the selftests. __cpuid_count()
as provided by gcc is available starting with gcc v4.4, so it is
not available if the latest tests need to be run in all the
environments required to support kernels v4.9 and v4.14 that
have the minimal required gcc v3.2.
Duplicate gcc's __cpuid_count() macro to provide a centrally defined
macro for __cpuid_count() to help eliminate the duplicate CPUID wrappers
while continuing to compile in older environments.
Suggested-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Currently the damon selftests are not built with the rest of the
selftests. We add damon to the list of targets.
Fixes: b348eb7abd09 ("mm/damon: add user space selftests")
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Yuanchu Xie <yuanchu@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Currently the binderfs test says what failure it encountered
without saying why it may occurred when it fails to mount
binderfs. So, Warn about enabling CONFIG_ANDROID_BINDERFS in the
running kernel.
Signed-off-by: Karthik Alapati <mail@karthek.com>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Drop duplicate macro min() definition in mq_perf_tests.c, use MIN() in
sys/param.h instead.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This is the mips variant of commit <3990b5baf225> ("selftests/ftrace:
Add s390 support for kprobe args tests").
Signed-off-by: Ze Zhang <zhangze@loongson.cn>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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This is the mips variant of commit <3990b5baf225> ("selftests/ftrace:
Add s390 support for kprobe args tests").
Signed-off-by: Ze Zhang <zhangze@loongson.cn>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add a thermal library and thermal tools to wrap the netlink
interface into event-based callbacks, improve overheat condition
handling during suspend-to-idle on Intel SoCs, add some new hardware
support, fix bugs and clean up code.
Specifics:
- Add thermal library and thermal tools to encapsulate the netlink
into event based callbacks (Daniel Lezcano, Jiapeng Chong).
- Improve overheat condition handling during suspend-to-idle in the
Intel PCH thermal driver (Zhang Rui).
- Use local ops instead of global ops in devfreq_cooling (Kant Fan).
- Clean up _OSC handling in int340x (Davidlohr Bueso).
- Switch hisi_termal from CONFIG_PM_SLEEP guards to pm_sleep_ptr()
(Hesham Almatary).
- Add new k3 j72xx bangdap driver and the corresponding bindings
(Keerthy).
- Fix missing of_node_put() in the SC iMX driver at probe time
(Miaoqian Lin).
- Fix memory leak in __thermal_cooling_device_register()
when device_register() fails by calling
thermal_cooling_device_destroy_sysfs() (Yang Yingliang).
- Add sc8180x and sc8280xp compatible string in the DT bindings and
lMH support for QCom tsens driver (Bjorn Andersson).
- Fix OTP Calibration Register values conforming to the documentation
on RZ/G2L and bindings documentation for RZ/G2UL (Biju Das).
- Fix type in kerneldoc description for __thermal_bind_params
(Corentin Labbe).
- Fix potential NULL dereference in sr_thermal_probe() on Broadcom
platform (Zheng Yongjun).
- Add change mode ops to the thermal-of sensor (Manaf Meethalavalappu
Pallikunhi).
- Fix non-negative value support by preventing the value to be clamp
to zero (Stefan Wahren).
- Add compatible string and DT bindings for MSM8960 tsens driver
(Dmitry Baryshkov).
- Add hwmon support for K3 driver (Massimiliano Minella).
- Refactor and add multiple generations support for QCom ADC driver
(Jishnu Prakash).
- Use platform_get_irq_optional() to get the interrupt on RCar driver
and document Document RZ/V2L bindings (Lad Prabhakar).
- Remove NULL check after container_of() call from the Intel HFI
thermal driver (Haowen Bai)"
* tag 'thermal-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (38 commits)
thermal: intel: pch: improve the cooling delay log
thermal: intel: pch: enhance overheat handling
thermal: intel: pch: move cooling delay to suspend_noirq phase
PM: wakeup: expose pm_wakeup_pending to modules
thermal: k3_j72xx_bandgap: Add the bandgap driver support
dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation
thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe
thermal/core: Fix memory leak in __thermal_cooling_device_register()
dt-bindings: thermal: tsens: Add sc8280xp compatible
dt-bindings: thermal: lmh: Add Qualcomm sc8180x compatible
thermal/drivers/qcom/lmh: Add sc8180x compatible
thermal/drivers/rz2gl: Fix OTP Calibration Register values
dt-bindings: thermal: rzg2l-thermal: Document RZ/G2UL bindings
thermal: thermal_of: fix typo on __thermal_bind_params
tools/thermal: remove unneeded semicolon
tools/lib/thermal: remove unneeded semicolon
thermal/drivers/broadcom: Fix potential NULL dereference in sr_thermal_probe
tools/thermal: Add thermal daemon skeleton
tools/thermal: Add a temperature capture tool
tools/thermal: Add util library
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Fix the following coccicheck warnings:
./tools/thermal/thermometer/thermometer.c:147:3-4: Unneeded semicolon.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220427030619.81556-2-jiapeng.chong@linux.alibaba.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Fix the following coccicheck warnings:
./tools/lib/thermal/commands.c:215:2-3: Unneeded semicolon.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220427030619.81556-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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This change provides a simple daemon skeleton. It is an example of how
to use the thermal library which wraps all the complex code related to
the netlink and transforms it into a callback oriented code.
The goal of this skeleton is to give a base brick for anyone
interested in writing its own thermal engine or as an example to rely
on to write its own thermal monitoring implementation.
In the future, it will evolve with more features and hopefully more
logic.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220420160933.347088-5-daniel.lezcano@linaro.org
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The 'thermometer' tool allows to capture the temperature of a set of
thermal zones defined in a configuration file at a specified rate.
It is designed to have the lowest possible overhead. It will write the
captured temperature per thermal zone per file so making easier to
write a gnuplot script.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220420160933.347088-4-daniel.lezcano@linaro.org
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The next changes will provide a couple of tools using some common
functions provided by this library.
It provides basic wrappers for:
- mainloop
- logging
- timestamp
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220420160933.347088-3-daniel.lezcano@linaro.org
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The thermal framework implements a netlink notification mechanism to
be used by the userspace to have a thermal configuration discovery,
trip point changes or violation, cooling device changes notifications,
etc...
This library provides a level of abstraction for the thermal netlink
notification allowing the userspace to connect to the notification
mechanism more easily. The library is callback oriented.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220420160933.347088-2-daniel.lezcano@linaro.org
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add support for 'artificial' Energy Models in which power
numbers for different entities may be in different scales, add support
for some new hardware, fix bugs and clean up code in multiple places.
Specifics:
- Update the Energy Model support code to allow the Energy Model to
be artificial, which means that the power values may not be on a
uniform scale with other devices providing power information, and
update the cpufreq_cooling and devfreq_cooling thermal drivers to
support artificial Energy Models (Lukasz Luba).
- Make DTPM check the Energy Model type (Lukasz Luba).
- Fix policy counter decrementation in cpufreq if Energy Model is in
use (Pierre Gondois).
- Add CPU-based scaling support to passive devfreq governor (Saravana
Kannan, Chanwoo Choi).
- Update the rk3399_dmc devfreq driver (Brian Norris).
- Export dev_pm_ops instead of suspend() and resume() in the IIO
chemical scd30 driver (Jonathan Cameron).
- Add namespace variants of EXPORT[_GPL]_SIMPLE_DEV_PM_OPS and
PM-runtime counterparts (Jonathan Cameron).
- Move symbol exports in the IIO chemical scd30 driver into the
IIO_SCD30 namespace (Jonathan Cameron).
- Avoid device PM-runtime usage count underflows (Rafael Wysocki).
- Allow dynamic debug to control printing of PM messages (David
Cohen).
- Fix some kernel-doc comments in hibernation code (Yang Li, Haowen
Bai).
- Preserve ACPI-table override during hibernation (Amadeusz
Sławiński).
- Improve support for suspend-to-RAM for PSCI OSI mode (Ulf Hansson).
- Make Intel RAPL power capping driver support the RaptorLake and
AlderLake N processors (Zhang Rui, Sumeet Pawnikar).
- Remove redundant store to value after multiply in the RAPL power
capping driver (Colin Ian King).
- Add AlderLake processor support to the intel_idle driver (Zhang
Rui).
- Fix regression leading to no genpd governor in the PSCI cpuidle
driver and fix the riscv-sbi cpuidle driver to allow a genpd
governor to be used (Ulf Hansson).
- Fix cpufreq governor clean up code to avoid using kfree() directly
to free kobject-based items (Kevin Hao).
- Prepare cpufreq for powerpc's asm/prom.h cleanup (Christophe
Leroy).
- Make intel_pstate notify frequency invariance code when no_turbo is
turned on and off (Chen Yu).
- Add Sapphire Rapids OOB mode support to intel_pstate (Srinivas
Pandruvada).
- Make cpufreq avoid unnecessary frequency updates due to mismatch
between hardware and the frequency table (Viresh Kumar).
- Make remove_cpu_dev_symlink() clear the real_cpus mask to simplify
code (Viresh Kumar).
- Rearrange cpufreq_offline() and cpufreq_remove_dev() to make the
calling convention for some driver callbacks consistent (Rafael
Wysocki).
- Avoid accessing half-initialized cpufreq policies from the show()
and store() sysfs functions (Schspa Shi).
- Rearrange cpufreq_offline() to make the calling convention for some
driver callbacks consistent (Schspa Shi).
- Update CPPC handling in cpufreq (Pierre Gondois).
- Extend dev_pm_domain_detach() doc (Krzysztof Kozlowski).
- Move genpd's time-accounting to ktime_get_mono_fast_ns() (Ulf
Hansson).
- Improve the way genpd deals with its governors (Ulf Hansson).
- Update the turbostat utility to version 2022.04.16 (Len Brown, Dan
Merillat, Sumeet Pawnikar, Zephaniah E. Loss-Cutler-Hull, Chen Yu)"
* tag 'pm-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (94 commits)
PM: domains: Trust domain-idle-states from DT to be correct by genpd
PM: domains: Measure power-on/off latencies in genpd based on a governor
PM: domains: Allocate governor data dynamically based on a genpd governor
PM: domains: Clean up some code in pm_genpd_init() and genpd_remove()
PM: domains: Fix initialization of genpd's next_wakeup
PM: domains: Fixup QoS latency measurements for IRQ safe devices in genpd
PM: domains: Measure suspend/resume latencies in genpd based on governor
PM: domains: Move the next_wakeup variable into the struct gpd_timing_data
PM: domains: Allocate gpd_timing_data dynamically based on governor
PM: domains: Skip another warning in irq_safe_dev_in_sleep_domain()
PM: domains: Rename irq_safe_dev_in_no_sleep_domain() in genpd
PM: domains: Don't check PM_QOS_FLAG_NO_POWER_OFF in genpd
PM: domains: Drop redundant code for genpd always-on governor
PM: domains: Add GENPD_FLAG_RPM_ALWAYS_ON for the always-on governor
powercap: intel_rapl: remove redundant store to value after multiply
cpufreq: CPPC: Enable dvfs_possible_from_any_cpu
cpufreq: CPPC: Enable fast_switch
ACPI: CPPC: Assume no transition latency if no PCCT
ACPI: bus: Set CPPC _OSC bits for all and when CPPC_LIB is supported
ACPI: CPPC: Check _OSC for flexible address space
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