diff options
| author | Ilan Aelion <iaelion@nvidia.com> | 2012-08-07 09:27:45 -0600 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-08-09 18:06:04 -0700 |
| commit | 7c022b1b9bc18c5f2156c67701a0fe382e024a85 (patch) | |
| tree | 1d554aae82e2346e3a32dcf24ace2b1bedf4a0ef /drivers | |
| parent | a0e0764dd05daec75c9c45b2866a5e6fbe042352 (diff) | |
misc: tegra-throughput: warn on short frames
issue a warning on flip events less than 1 microsecond apart.
Bug 1027664
Bug 1028850
Signed-off-by: Ilan Aelion <iaelion@nvidia.com>
Reviewed-on: http://git-master/r/121810
(cherry picked from commit 6c0e907b437765fb9f7093599911b71a836d49a6)
Change-Id: Ie15256e35475d345b2ebe6ddb637ccc181fcb61e
Reviewed-on: http://git-master/r/122326
Reviewed-by: Donghan Ryu <dryu@nvidia.com>
Tested-by: Donghan Ryu <dryu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/tegra-throughput.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/misc/tegra-throughput.c b/drivers/misc/tegra-throughput.c index c90a6a00a1a0..bff53235a74c 100644 --- a/drivers/misc/tegra-throughput.c +++ b/drivers/misc/tegra-throughput.c @@ -57,8 +57,11 @@ static int throughput_flip_notifier(struct notifier_block *nb, else last_frame_time = (unsigned short) timediff; - if (last_frame_time == 0) + if (last_frame_time == 0) { + pr_warn("%s: notifications %lld nsec apart\n", + __func__, now.tv64 - last_flip.tv64); return NOTIFY_DONE; + } throughput_hint = ((int) target_frame_time * 100)/last_frame_time; |