Re: [PATCH v13 0/9] coresight: enable debug module

2017-05-30 Thread Leo Yan
On Mon, May 29, 2017 at 10:41:17AM -0600, Mathieu Poirier wrote: > On 25 May 2017 at 09:57, Leo Yan wrote: > > ARMv8 architecture reference manual (ARM DDI 0487A.k) Chapter H7 "The > > Sample-based Profiling Extension" has description for sampling > > registers, we can utilize

Re: [PATCH v13 0/9] coresight: enable debug module

2017-05-29 Thread Mathieu Poirier
On 25 May 2017 at 09:57, Leo Yan 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

[PATCH v13 0/9] coresight: enable debug module

2017-05-25 Thread Leo Yan
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