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authorMark Brown <broonie@kernel.org>2022-04-19 12:22:42 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2022-04-28 17:57:12 +0100
commit5aa45cc5355db3f5302e232a0fe29759ace4bc92 (patch)
tree62b499475fa817c91c35c9e3d46a3f38a6ab3789 /tools/testing/selftests/arm64/signal
parentkselftest/arm64: signal: Handle ZA signal context in core code (diff)
downloadlinux-dev-5aa45cc5355db3f5302e232a0fe29759ace4bc92.tar.xz
linux-dev-5aa45cc5355db3f5302e232a0fe29759ace4bc92.zip
kselftest/arm64: Add stress test for SME ZA context switching
Add a stress test for context switching of the ZA register state based on the similar tests Dave Martin wrote for FPSIMD and SVE registers. The test loops indefinitely writing a data pattern to ZA then reading it back and verifying that it's what was expected. Unlike the other tests we manually assemble the SME instructions since at present no released toolchain has SME support integrated. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20220419112247.711548-35-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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