PD#SWPL-8068
PD#SWPL-8069
Problem:
1. use select to polling frame.
Solution:
1. add when use video layer amlvideo support poll
2. add trace debug info
Verify:
Verify on marconi
Change-Id: Ib1ae87b4b7ab35b075bc357953abe43e3410232a
Signed-off-by: shipeng.sun <shipeng.sun@amlogic.com>
Signed-off-by: Tao Guo <tao.guo@amlogic.com>
PD#SWPL-8069
Problem:
1.about 2ms latency due to sleep
2.crash while poll ionvideo
Solution:
1.use semaphore instead of sleep
2.fix poll function
3.add trace info for ionvideo
Verify:
U212
Change-Id: Idde64151541d826ba6a6cd1abcc901e80f0e4b45
Signed-off-by: jintao xu <jintao.xu@amlogic.com>
PD#SWPL-8124
Problem:
There are too many trace info when enabled
Lack some important trace info
Solution:
Add tag to enable/disable trace info for different modules
Add more trace info
Verify:
P212
Change-Id: I9916b97071dc6b3a5e133bb0ea55eb9a9532cec8
Signed-off-by: Tao Guo <tao.guo@amlogic.com>
PD#SWPL-6028
Problem:
save irqflag locally when ftrace_ramoops io
Solution:
save irqflag locally when ftrace_ramoops io
Verify:
TL1 x301
Change-Id: I6df9700cceaccc97dc983d88ada73197a6968f73
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
PD#SWPL-6028
Problem:
improve ftrace_ramoops to debug bus hang
Solution:
1. in uboot
setenv initargs $initargs ramoops_io_en=1 loglevel=3;save;reset
2. in linux command line:
cat /sys/module/kernel/parameters/ramoops_io_en
to check if success.
3. after watchdog reboot, get trace data with:
cat /sys/fs/pstore/ftrace-ramoops-0
Verify:
TL1 x301
Change-Id: If1a2582b40a3ded31eedef5355eb0b8a5bf495c3
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
PD#173193: need more debug info when hardlockup happens
Change-Id: Ia265a58ba776168ac4838cc7f4a6d7cfbeaf6557
Signed-off-by: jiamin ma <jiamin.ma@amlogic.com>
PD#165796: disable irq_check_en by default, because it may affect some
benchmark results.
It can be enabled by debugfs:
echo 1 > /sys/kernel/debug/lockup/irq_check_en
Change-Id: I6c39a9a6fc2f372eb71e0c1a0872865079e758cb
Signed-off-by: jianxin.pan <jianxin.pan@amlogic.com>
PD#165796: debug: drop sscanf, use kstrto variant instead
kstrto is kernel reconmmend function which is more safe than sscanf
this will also fix the following checkpatch.pl warning
WARNING: Prefer kstrto<type> to single variable sscanf
+ ret = sscanf(buf, "%ld", &val);
Change-Id: I9a4673b9aa43c10f51a20778ba520461ee0a7984
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
PD#165796: detect dead lock in isr and dead lock with irq disabled
Change-Id: I0aace28fd29e5aeb8c514f6ab1700ac1248f836c
Signed-off-by: jianxin.pan <jianxin.pan@amlogic.com>
