kselftest/arm64: Implement irritators for ZA and ZT

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Currently we don't use the irritator signal in our floating point stress
tests so when we added ZA and ZT stress tests we didn't actually bother
implementing any actual action in the handlers, we just counted the signal
deliveries. In preparation for using the irritators let's implement them,
just trivially SMSTOP and SMSTART to reset all bits in the register to 0.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-4-c4b9622e36ee@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2024-11-07 01:39:23 +00:00 • committed by Catalin Marinas

parent ffca567fef

commit d65f27d240

2 changed files with 8 additions and 16 deletions

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tools/testing/selftests/arm64/fp/za-test.S

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12

tools/testing/selftests/arm64/fp/zt-test.S

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