From 4cc40ad4fe80f4d107e8e4279b0b07243b91f77c Mon Sep 17 00:00:00 2001 From: Bob Paauwe Date: Mon, 7 Dec 2015 13:53:35 -0800 Subject: [PATCH] igt/test/pm_rps: load GPU to force not-idle to idle transition. When changing the sysfs GT min frequency, the kernel won't automatcilly drop the GT frequency to idle unless the GPU transitions from busy to idle. Load the GPU after increasing the GT min frequency to force a busy to idle transition. This matches the behavior when decreasing the GT min frequency. Signed-off-by: Bob Paauwe Reviewed-by: Imre Deak --- tests/pm_rps.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/pm_rps.c b/tests/pm_rps.c index 9d054fdb..9f752f8e 100644 --- a/tests/pm_rps.c +++ b/tests/pm_rps.c @@ -388,10 +388,14 @@ static void min_max_config(void (*check)(void), bool load_gpu) igt_debug("\nIncrease min to midpoint...\n"); writeval(stuff[MIN].filp, fmid); + if (load_gpu) + do_load_gpu(); check(); igt_debug("\nIncrease min to RP0...\n"); writeval(stuff[MIN].filp, origfreqs[RP0]); + if (load_gpu) + do_load_gpu(); check(); igt_debug("\nIncrease min above RP0 (invalid)...\n");