commit 3335f14d31f5078f1de12774e08e1321e40d093a
author Tarun Karra <tkarra@codeaurora.org> Tue Jun 19 14:11:48 2012 -0700
committer Jordan Crouse <jcrouse@codeaurora.org> Tue Jul 03 16:12:08 2012 -0600
tree 63553fca68fa122202fe01f2c6c8697eefdb896e
parent b2abc453e5bd18cb3b9e86d86d1c720188a5ac94

msm: kgsl: Faster GPU hang detection

Check global GPU status registers in intervals of 2 seconds,
if the registers did not change after 2 seconds trigger a hang.
When there is an actual GPU hang and GPU is stalled, this reduces
the current hang detection time from 10 seconds to 2 seconds.
Faster GPU hang detection reduces the overall time to recover
from GPU hang.

Change-Id: If432ccacc1b77b4fc7f08b756886bd3ae5edf04f
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>

drivers/gpu/msm/kgsl_device.h

diff --git a/drivers/gpu/msm/kgsl_device.h b/drivers/gpu/msm/kgsl_device.h
index d464cf1..75b688b 100644
--- a/drivers/gpu/msm/kgsl_device.h
+++ b/drivers/gpu/msm/kgsl_device.h
@@ -25,6 +25,7 @@
 
 #define KGSL_TIMEOUT_NONE       0
 #define KGSL_TIMEOUT_DEFAULT    0xFFFFFFFF
+#define KGSL_TIMEOUT_PART       2000 /* 2 sec */
 
 #define FIRST_TIMEOUT (HZ / 2)