msm: pm-8x60: Debugfs node to read PC warmboot counters

Add debugfs to read warmboot counters from IMEM memory.

Sample output is as follows.
cat /sys/kernel/debug/pc_debug_counter
CPU0
        PC Entry Counter : 378
        Warmboot Entry Counter : 370
        PC Bailout Counter : 8
CPU1
        PC Entry Counter : 10
        Warmboot Entry Counter : 10
        PC Bailout Counter : 0
CPU2
        PC Entry Counter : 6
        Warmboot Entry Counter : 6
        PC Bailout Counter : 0
CPU3
        PC Entry Counter : 2
        Warmboot Entry Counter : 2
        PC Bailout Counter : 0

Change-Id: I245c80b88fee9bd6bef89fdcb4d0721622bd4d28
Signed-off-by: Priyanka Mathur <pmathur@codeaurora.org>
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
1 file changed