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

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Message-Id: <20230131234302.3997223-6-jithu.joseph@intel.com>
Date:   Tue, 31 Jan 2023 15:43:02 -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 5/5] 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         | 27 ++++++++++++++++++++++++
 drivers/platform/x86/intel/ifs/runtest.c |  1 +
 2 files changed, 28 insertions(+)

diff --git a/include/trace/events/intel_ifs.h b/include/trace/events/intel_ifs.h
index d7353024016c..db43df4139a2 100644
--- a/include/trace/events/intel_ifs.h
+++ b/include/trace/events/intel_ifs.h
@@ -35,6 +35,33 @@ 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,	status	)
+		__field(	int,	cpu	)
+		__field(	u32,	arrays	)
+		__field(	u16,	bank	)
+	),
+
+	TP_fast_assign(
+		__entry->cpu	= cpu;
+		__entry->arrays	= activate.array_bitmask;
+		__entry->bank	= activate.array_bank;
+		__entry->status	= status.data;
+	),
+
+	TP_printk("cpu: %d, array_list: %.8x, array_bank: %.4x, status: %.16llx",
+		__entry->cpu,
+		__entry->arrays,
+		__entry->bank,
+		__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 ec0ceb6b5890..4fd80d91ea29 100644
--- a/drivers/platform/x86/intel/ifs/runtest.c
+++ b/drivers/platform/x86/intel/ifs/runtest.c
@@ -301,6 +301,7 @@ 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