Commit 51af802f authored by Tony Luck's avatar Tony Luck Committed by Hans de Goede
Browse files

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: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220506225410.1652287-11-tony.luck@intel.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 6f33a92b

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -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>
































drivers/platform/x86/intel/ifs/runtest.c



+5
−0






























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@@ -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;
































include/trace/events/intel_ifs.h
0 → 100644



+41
−0






























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/* 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>