[Intel-gfx] [PATCH i-g-t v2 1/7] lib/igt_aux: Use provided autoresume delay for rtc wake

[Lyude Paul]

FYI: I reviewed and pushed patches 1-4 of this series, thanks!

On Tue, 2017-06-27 at 13:53 +0300, Paul Kocialkowski wrote:
> This stores the autoresume delay provided via
> igt_set_autoresume_delay
> for use during suspend via rtc wake scheduling. This delay was
> previously only used for pm_test suspendm while the function suggests
> it should be applied to all autoresume cases.
> 
> There is also definitely a use case for configuring the rtc wake
> delay,
> so this implements it.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski at linux.intel.com>
> ---
>  lib/igt_aux.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/igt_aux.c b/lib/igt_aux.c
> index eb563f72..882dba06 100644
> --- a/lib/igt_aux.c
> +++ b/lib/igt_aux.c
> @@ -680,6 +680,8 @@ void igt_cleanup_aperture_trashers(void)
>  	free(trash_bos);
>  }
>  
> +static int autoresume_delay;
> +
>  static const char *suspend_state_name[] = {
>  	[SUSPEND_STATE_FREEZE] = "freeze",
>  	[SUSPEND_STATE_STANDBY] = "standby",
> @@ -746,7 +748,10 @@ static void suspend_via_rtcwake(enum
> igt_suspend_state state)
>  
>  	igt_assert(state < SUSPEND_STATE_NUM);
>  
> -	delay = state == SUSPEND_STATE_DISK ? 30 : 15;
> +	if (autoresume_delay)
> +		delay = autoresume_delay;
> +	else
> +		delay = state == SUSPEND_STATE_DISK ? 30 : 15;
>  
>  	/*
>  	 * Skip if rtcwake would fail for a reason not related to
> the kernel's
> @@ -889,6 +894,8 @@ void igt_set_autoresume_delay(int delay_secs)
>  	igt_require(write(delay_fd, delay_str, strlen(delay_str)));
>  
>  	close(delay_fd);
> +
> +	autoresume_delay = delay_secs;
>  }
>  
>  /**