[Intel-gfx] [PATCH i-g-t 1/5] kms_frontbuffer_tracking: Increase the time we wait for PSR.

Rodrigo Vivi rodrigo.vivi at intel.com
Thu Dec 3 08:39:14 PST 2015

With commit (drm/i915: Delay first PSR activation.) in kernel
PSR might take a bit longer to really activate after the modeset.
The first PSR activation after modeset is taking 5 times the panel
power cycle delay time, which is 600ms for our machines here.
So timeout here needs to be a minimum of 3s. However let's use
5s as the safe value in case we find machines with higher power
cycle delay.

Since we do a lot of assert(psr_disabled), this commit is increasing
the time it takes to run the whole set of PSR tests by a few minutes,
which had been reduced by commit f4db3b18841
("kms_frontbuffer_tracking: reduce the PSR wait timeout to 2s").

Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
 tests/kms_frontbuffer_tracking.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/kms_frontbuffer_tracking.c b/tests/kms_frontbuffer_tracking.c
index 4734f25..c729cee 100644
--- a/tests/kms_frontbuffer_tracking.c
+++ b/tests/kms_frontbuffer_tracking.c
@@ -851,7 +851,7 @@ static bool fbc_wait_until_enabled(void)
 static bool psr_wait_until_enabled(void)
-	return igt_wait(psr_is_enabled(), 2000, 1);
+	return igt_wait(psr_is_enabled(), 5000, 1);
 #define fbc_enable() igt_set_module_param_int("enable_fbc", 1)

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