selftests/remoteproc: Add selftest suite for sysfs interface#743
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selftests/remoteproc: Add selftest suite for sysfs interface#743bibekpatro wants to merge 1 commit into
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Add a new selftest suite for the remoteproc framework covering its stable userspace-facing sysfs interface: - /sys/class/remoteproc/remoteprocN/ (sysfs attributes) remoteproc_sysfs covers all sysfs attributes (name, state, firmware, coredump, recovery) with 11 tests: read validity checks, invalid write rejection, read-after-write roundtrips, firmware write while offline, and stop-when-offline noop. The binary uses kselftest_harness.h with FIXTURE/FIXTURE_TEARDOWN to ensure sysfs state (firmware, coredump, recovery) is restored to its original value after each test regardless of pass or fail. The binary skips gracefully with KSFT_SKIP when no remoteproc devices are present, making it safe to run in CI environments without remoteproc hardware. start/stop lifecycle tests and debugfs interfaces are intentionally excluded: the former requires a platform-specific firmware binary that cannot be assumed present in a generic test environment, and the latter is not part of the stable userspace ABI. Signed-off-by: Bibek Kumar Patro <bibek.patro@oss.qualcomm.com> Cc: Bjorn Andersson <andersson@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Shuah Khan <shuah@kernel.org> Cc: linux-remoteproc@vger.kernel.org Cc: linux-kselftest@vger.kernel.org
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Add a new selftest suite for the remoteproc framework covering its stable userspace-facing sysfs interface:
remoteproc_sysfs covers all sysfs attributes (name, state, firmware, coredump, recovery) with 11 tests: read validity checks, invalid write rejection, read-after-write roundtrips, firmware write while offline, and stop-when-offline noop.
The binary uses kselftest_harness.h with FIXTURE/FIXTURE_TEARDOWN to ensure sysfs state (firmware, coredump, recovery) is restored to its original value after each test regardless of pass or fail.
The binary skips gracefully with KSFT_SKIP when no remoteproc devices are present, making it safe to run in CI environments without remoteproc hardware.
start/stop lifecycle tests and debugfs interfaces are intentionally excluded: the former requires a platform-specific firmware binary that cannot be assumed present in a generic test environment, and the latter is not part of the stable userspace ABI.
Cc: Bjorn Andersson andersson@kernel.org
Cc: Mathieu Poirier mathieu.poirier@linaro.org
Cc: Shuah Khan shuah@kernel.org
Cc: linux-remoteproc@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org