Re: [igt-dev] [PATCH i-g-t] tests/xe_guc_pc: Restore max freq first

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On Fri, Mar 24, 2023 at 05:34:42PM -0700, Vinay Belgaumkar wrote:
> When min/max are both at RPn, restoring min back to 300
> will not work. Max needs to be increased first.

why max needs to come first in this case? we should probably at
least document so we don't forget it again...

> Also, add
> igt_assert() here, which would have caught the issue.

I was going to ask if we should really add asserts inside the fixture
or maybe using igt_require instead, but then I noticed more cases
doing the assert...

> 
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>
> ---
>  tests/xe/xe_guc_pc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/xe/xe_guc_pc.c b/tests/xe/xe_guc_pc.c
> index 60c93288..43bf6f48 100644
> --- a/tests/xe/xe_guc_pc.c
> +++ b/tests/xe/xe_guc_pc.c
> @@ -489,8 +489,8 @@ igt_main
>  
>  	igt_fixture {
>  		xe_for_each_gt(fd, gt) {
> -			set_freq(sysfs, gt, "min", stash_min);
> -			set_freq(sysfs, gt, "max", stash_max);
> +			igt_assert(set_freq(sysfs, gt, "max", stash_max) > 0);
> +			igt_assert(set_freq(sysfs, gt, "min", stash_min) > 0);
>  		}
>  		close(sysfs);
>  		xe_device_put(fd);
> -- 
> 2.38.1
> 



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