On Mon, May 29, 2017 at 10:41:17AM -0600, Mathieu Poirier wrote: > On 25 May 2017 at 09:57, Leo Yan <leo.yan@xxxxxxxxxx> wrote: > > ARMv8 architecture reference manual (ARM DDI 0487A.k) Chapter H7 "The > > Sample-based Profiling Extension" has description for sampling > > registers, we can utilize these registers to check program counter > > value with combined CPU exception level, secure state, etc. So this is > > helpful for CPU lockup bugs, e.g. if one CPU has run into infinite loop > > with IRQ disabled; the 'hang' CPU cannot switch context and handle any > > interrupt, so it cannot handle SMP call for stack dump, etc. > > > > This patch series is to enable coresight debug module with sample-based > > registers and register call back notifier for PCSR register dumping > > when panic happens, so we can see below dumping info for panic; and > > this patch series has considered the conditions for access permission > > for debug registers self, so this can avoid access debug registers when > > CPU power domain is off; the driver also try to figure out the CPU is > > in secure or non-secure state. > > I have queued patches 1 to 7 to my tree. I can't do anything about > patches 8 and 9 because they haven't been ack'ed. From here you can > either chase them to get an ACK or send a separate patch to them > directly. Thanks a lot, Mathieu. I will ping Wei and Andy/David saperately. > Thanks, > Mathieu -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
