diff options
| author | Tony Luck <tony.luck@intel.com> | 2022-05-07 01:54:08 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-05-12 16:35:29 +0300 |
| commit | 51af802fc05152e84727a4293ccaa7e7e1b64d7e (patch) | |
| tree | e91d043ead3ecfeda7943e6e2ee9ac0ee8a830b2 | |
| parent | 6f33a92b92f9cc37f31137cd5a2060ec714d486b (diff) | |
| download | linux-51af802fc05152e84727a4293ccaa7e7e1b64d7e.tar.xz | |
trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations
Add tracing support which may be useful for debugging systems that fail to complete
In Field Scan tests.
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220506225410.1652287-11-tony.luck@intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | drivers/platform/x86/intel/ifs/runtest.c | 5 | ||||
| -rw-r--r-- | include/trace/events/intel_ifs.h | 41 |
3 files changed, 47 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 3ffc7c129b87..a4f937b5e72f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9865,6 +9865,7 @@ R: Ashok Raj <ashok.raj@intel.com> R: Tony Luck <tony.luck@intel.com> S: Maintained F: drivers/platform/x86/intel/ifs +F: include/trace/events/intel_ifs.h INTEL INTEGRATED SENSOR HUB DRIVER M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> diff --git a/drivers/platform/x86/intel/ifs/runtest.c b/drivers/platform/x86/intel/ifs/runtest.c index 7efcce35e0e9..b2ca2bb4501f 100644 --- a/drivers/platform/x86/intel/ifs/runtest.c +++ b/drivers/platform/x86/intel/ifs/runtest.c @@ -17,6 +17,9 @@ * core will update results of the test. */ +#define CREATE_TRACE_POINTS +#include <trace/events/intel_ifs.h> + /* Max retries on the same chunk */ #define MAX_IFS_RETRIES 5 @@ -191,6 +194,8 @@ static void ifs_test_core(int cpu, struct device *dev) status.data = msrvals[1]; + trace_ifs_status(cpu, activate, status); + /* Some cases can be retried, give up for others */ if (!can_restart(status)) break; diff --git a/include/trace/events/intel_ifs.h b/include/trace/events/intel_ifs.h new file mode 100644 index 000000000000..d7353024016c --- /dev/null +++ b/include/trace/events/intel_ifs.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM intel_ifs + +#if !defined(_TRACE_IFS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_IFS_H + +#include <linux/ktime.h> +#include <linux/tracepoint.h> + +TRACE_EVENT(ifs_status, + + TP_PROTO(int cpu, union ifs_scan activate, union ifs_status status), + + TP_ARGS(cpu, activate, status), + + TP_STRUCT__entry( + __field( u64, status ) + __field( int, cpu ) + __field( u8, start ) + __field( u8, stop ) + ), + + TP_fast_assign( + __entry->cpu = cpu; + __entry->start = activate.start; + __entry->stop = activate.stop; + __entry->status = status.data; + ), + + TP_printk("cpu: %d, start: %.2x, stop: %.2x, status: %llx", + __entry->cpu, + __entry->start, + __entry->stop, + __entry->status) +); + +#endif /* _TRACE_IFS_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |