ocxl: Add trace points

Define a few trace points so that we can use the standard tracing
mechanism for debug and/or monitoring.

Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

drivers/misc/ocxl/context.c

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 // Copyright 2017 IBM Corp.
 #include <linux/sched/mm.h>
+#include "trace.h"
 #include "ocxl_internal.h"
 
 struct ocxl_context *ocxl_context_alloc(void)
@@ -214,6 +215,7 @@ int ocxl_context_detach(struct ocxl_context *ctx)
 	mutex_lock(&ctx->afu->afu_control_lock);
 	rc = ocxl_config_terminate_pasid(dev, afu_control_pos, ctx->pasid);
 	mutex_unlock(&ctx->afu->afu_control_lock);
+	trace_ocxl_terminate_pasid(ctx->pasid, rc);
 	if (rc) {
 		/*
 		 * If we timeout waiting for the AFU to terminate the