[igt-dev] [PATCH i-g-t] tests/i915_pm_freq_api: Set min/max to expected values

[Riana Tauro]

On 9/19/2023 12:32 AM, Vinay Belgaumkar wrote:
> A prior(rps) test leaves the system in a bad state causing failures
> in the basic test. Set min/max to expected values before running it.
> Test will restore values at the end.
> 
> Link: https://gitlab.freedesktop.org/drm/intel/-/issues/8670
> 
> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar at intel.com>
LGTM
Reviewed-by: Riana Tauro <riana.tauro at intel.com>
> ---
>   tests/intel/i915_pm_freq_api.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/intel/i915_pm_freq_api.c b/tests/intel/i915_pm_freq_api.c
> index 03bd0d05b..6018692a2 100644
> --- a/tests/intel/i915_pm_freq_api.c
> +++ b/tests/intel/i915_pm_freq_api.c
> @@ -55,7 +55,11 @@ static void test_freq_basic_api(int dirfd, int gt)
>   	rpn = get_freq(dirfd, RPS_RPn_FREQ_MHZ);
>   	rp0 = get_freq(dirfd, RPS_RP0_FREQ_MHZ);
>   	rpe = get_freq(dirfd, RPS_RP1_FREQ_MHZ);
> -	igt_debug("GT: %d, RPn: %d, RPe: %d, RP0: %d", gt, rpn, rpe, rp0);
> +	igt_debug("GT: %d, RPn: %d, RPe: %d, RP0: %d\n", gt, rpn, rpe, rp0);
> +
> +	/* Set min/max to RPn, RP0 for baseline behavior */
> +	igt_assert(set_freq(dirfd, RPS_MIN_FREQ_MHZ, rpn) > 0);
> +	igt_assert(set_freq(dirfd, RPS_MAX_FREQ_MHZ, rp0) > 0);
>   
>   	/*
>   	 * Negative bound tests
> @@ -170,7 +174,7 @@ igt_main
>   		for_each_sysfs_gt_dirfd(i915, dirfd, gt) {
>   			stash_min[gt] = get_freq(dirfd, RPS_MIN_FREQ_MHZ);
>   			stash_max[gt] = get_freq(dirfd, RPS_MAX_FREQ_MHZ);
> -			igt_debug("GT: %d, min: %d, max: %d", gt, stash_min[gt], stash_max[gt]);
> +			igt_debug("GT: %d, min: %d, max: %d\n", gt, stash_min[gt], stash_max[gt]);
>   			igt_pm_ignore_slpc_efficient_freq(i915, dirfd, true);
>   		}
>   		igt_install_exit_handler(restore_sysfs_freq);