[Intel-gfx] [igt-dev] [PATCH i-g-t] tests/perf_pmu: Restore runtime PM at subtest exit
Chris Wilson
chris at chris-wilson.co.uk
Thu Jul 19 16:48:40 UTC 2018
Quoting Tvrtko Ursulin (2018-07-19 17:37:56)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>
> Restore runtime PM state (via a newly added library function) when the
> test which sets it up exit. This was we avoid running all subsequent sub-
> tests in the aggressive runtime PM mode.
>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> ---
> lib/igt_pm.c | 13 ++++++++++++-
> lib/igt_pm.h | 1 +
> tests/perf_pmu.c | 3 +++
> 3 files changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/lib/igt_pm.c b/lib/igt_pm.c
> index 8ac132269d79..2e2eea5d3b2d 100644
> --- a/lib/igt_pm.c
> +++ b/lib/igt_pm.c
> @@ -297,7 +297,13 @@ int pm_status_fd = -1;
> static char __igt_pm_runtime_autosuspend[64];
> static char __igt_pm_runtime_control[64];
>
> -static void __igt_pm_runtime_exit_handler(int sig)
> +/**
> + * igt_restore_runtime_pm:
> + *
> + * Restores the runtime PM configuration as it was before the call to
> + * igt_setup_runtime_pm.
> + */
> +void igt_restore_runtime_pm(void)
> {
> int fd;
Should we eat __igt_pm_runtime_autosuspend so we only apply it once for
each igt_setup_runtime_pm?
-Chris
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