linux-kernel - [PATCH v2 5/7] platform/x86/intel/ifs: Trace support for array test

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Message-Id: <20230214234426.344960-6-jithu.joseph@intel.com>
Date:   Tue, 14 Feb 2023 15:44:24 -0800
From:   Jithu Joseph <jithu.joseph@...el.com>
To:     hdegoede@...hat.com, markgross@...nel.org
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        gregkh@...uxfoundation.org, rostedt@...dmis.org,
        jithu.joseph@...el.com, ashok.raj@...el.com, tony.luck@...el.com,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        patches@...ts.linux.dev, ravi.v.shankar@...el.com,
        thiago.macieira@...el.com, athenas.jimenez.gonzalez@...el.com,
        sohil.mehta@...el.com
Subject: [PATCH v2 5/7] platform/x86/intel/ifs: Trace support for array test

Enable tracing support in array test flow.

Signed-off-by: Jithu Joseph <jithu.joseph@...el.com>
Reviewed-by: Tony Luck <tony.luck@...el.com>
---
 include/trace/events/intel_ifs.h         | 25 ++++++++++++++++++++++++
 drivers/platform/x86/intel/ifs/runtest.c |  1 +
 2 files changed, 26 insertions(+)

diff --git a/include/trace/events/intel_ifs.h b/include/trace/events/intel_ifs.h
index d7353024016c..d15037943b80 100644
--- a/include/trace/events/intel_ifs.h
+++ b/include/trace/events/intel_ifs.h
@@ -35,6 +35,31 @@ TRACE_EVENT(ifs_status,
 		__entry->status)
 );
 
+TRACE_EVENT(ifs_array,
+
+	TP_PROTO(int cpu, union ifs_array activate, union ifs_array status),
+
+	TP_ARGS(cpu, activate, status),
+
+	TP_STRUCT__entry(
+		__field(	u64,	activate	)
+		__field(	u64,	status	)
+		__field(	int,	cpu	)
+	),
+
+	TP_fast_assign(
+		__entry->activate	= activate.data;
+		__entry->status	= status.data;
+		__entry->cpu	= cpu;
+	),
+
+	TP_printk("cpu: %d, array_list: %.8llx, array_bank: %.4llx, status: %.16llx",
+		__entry->cpu,
+		__entry->activate & 0xffffffff,
+		(__entry->activate >> 32) & 0xffff,
+		__entry->status)
+);
+
 #endif /* _TRACE_IFS_H */
 
 /* This part must be outside protection */
diff --git a/drivers/platform/x86/intel/ifs/runtest.c b/drivers/platform/x86/intel/ifs/runtest.c
index 12880fca0aa8..e74004fab1aa 100644
--- a/drivers/platform/x86/intel/ifs/runtest.c
+++ b/drivers/platform/x86/intel/ifs/runtest.c
@@ -299,6 +299,7 @@ static void ifs_array_test_core(int cpu, struct device *dev)
 		stop_core_cpuslocked(cpu, do_array_test, msrvals);
 		status.data = msrvals[1];
 
+		trace_ifs_array(cpu, activate, status);
 		if (status.ctrl_result)
 			break;
 
-- 
2.25.1