diff options
| author | Ilan Aelion <iaelion@nvidia.com> | 2012-08-07 09:27:45 -0600 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:31:27 -0700 |
| commit | 10d4897e1c82d4f46f5cbacd812dc059f9da4d5e (patch) | |
| tree | 66bf5465400f63b70c0a2652bd99456afe69a064 /drivers/misc/tegra-throughput.c | |
| parent | 610541b9404ca42ea429d422a00f6ab49b9f13d6 (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
Rebase-Id: Rb35f636f1b692b3d324038e478d06c03f72e68e6
Diffstat (limited to 'drivers/misc/tegra-throughput.c')
| -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 47dc682795ab..501cb9267ef4 100644 --- a/drivers/misc/tegra-throughput.c +++ b/drivers/misc/tegra-throughput.c @@ -58,8 +58,11 @@ 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; |