Re: [PATCH AUTOSEL 5.10 4/5] kselftest/arm64: Corrupt P0 in the irritator when testing SSVE

[Pavel Machek]

Hi!

> From: Mark Brown <broonie@xxxxxxxxxx>
> 
> [ Upstream commit 3e360ef0c0a1fb6ce9a302e40b8057c41ba8a9d2 ]
> 
> When building for streaming SVE the irritator for SVE skips updates of both
> P0 and FFR. While FFR is skipped since it might not be present there is no
> reason to skip corrupting P0 so switch to an instruction valid in streaming
> mode and move the ifdef.

This is mismerged. Original patch moves #ifdef. How did AUTOSEL came
up with this?

Best regards,
								Pavel

> +++ b/tools/testing/selftests/arm64/fp/sve-test.S
> @@ -459,7 +459,8 @@ function irritator_handler
>  	movi	v9.16b, #2
>  	movi	v31.8b, #3
>  	// And P0
> -	rdffr	p0.b
> +	ptrue	p0.d
> +#ifndef SSVE
>  	// And FFR
>  	wrffr	p15.b
>  

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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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