kernel/tools/testing/selftests/arm64/fp/fpsimd-test.S, branch linux-6.2.y

kselftest/arm64: Install signal handlers before output in FP stress tests

2022-09-07T13:25:31Z

To interface more robustly with other processes install the signal handers in the floating point stress tests before we produce any output, this means that a parent process can know that if it has seen any output from the test then the test is ready to handle incoming signals. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220906220056.820295-1-broonie@kernel.org Signed-off-by: Catalin Marinas

kselftest/arm64: Count SIGUSR2 deliveries in FP stress tests

2022-09-06T17:31:41Z

Currently the floating point stress tests mostly support testing that the data they are checking can be disrupted from a signal handler triggered by SIGUSR1. This is not properly implemented for all the tests and in testing is frequently modified to just handle the signal without corrupting data in order to ensure that signal handling does not corrupt data. Directly support this usage by installing a SIGUSR2 handler which simply counts the signal delivery. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20220829154452.824870-3-broonie@kernel.org Signed-off-by: Catalin Marinas

selftests: arm64: Factor out utility functions for assembly FP tests

2021-10-21T10:11:27Z

The various floating point test programs written in assembly have a bunch of helper functions and macros which are cut'n'pasted between them. Factor them out into a separate source file which is linked into all of them. We don't include memcmp() since it isn't as generic as it should be and directly branches to report an error in the programs. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20211019181851.3341232-1-broonie@kernel.org Signed-off-by: Will Deacon

arm64: selftests: Fix spelling of 'Mismatch'

2021-01-15T10:05:27Z

The SVE and FPSIMD stress tests have a spelling mistake in the output, fix it. Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20210108183144.673-1-broonie@kernel.org Signed-off-by: Catalin Marinas

selftests: arm64: Add stress tests for FPSMID and SVE context switching

2020-09-18T13:17:58Z

Add programs sve-test and fpsimd-test which spin reading and writing to the SVE and FPSIMD registers, verifying the operations they perform. The intended use is to leave them running to stress the context switch code's handling of these registers which isn't compatible with what kselftest does so they're not integrated into the framework but there's no other obvious testsuite where they fit so let's store them here. These tests were written by Dave Martin and lightly adapted by me. Signed-off-by: Mark Brown Acked-by: Dave Martin Acked-by: Shuah Khan Link: https://lore.kernel.org/r/20200819114837.51466-4-broonie@kernel.org Signed-off-by: Will Deacon