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diff --git a/services/spd/trusty/generic-arm64-smcall.h b/services/spd/trusty/generic-arm64-smcall.h
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+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "smcall.h"
+
+#define SMC_ENTITY_PLATFORM_MONITOR 61
+
+/*
+ * SMC calls implemented by EL3 monitor
+ */
+
+/*
+ * Write character in r1 to debug console
+ */
+#define SMC_FC_DEBUG_PUTC SMC_FASTCALL_NR(SMC_ENTITY_PLATFORM_MONITOR, 0x0)
+
+/*
+ * Get register base address
+ * r1: SMC_GET_GIC_BASE_GICD or SMC_GET_GIC_BASE_GICC
+ */
+#define SMC_GET_GIC_BASE_GICD 0
+#define SMC_GET_GIC_BASE_GICC 1
+#define SMC_FC_GET_REG_BASE SMC_FASTCALL_NR(SMC_ENTITY_PLATFORM_MONITOR, 0x1)
+#define SMC_FC64_GET_REG_BASE SMC_FASTCALL64_NR(SMC_ENTITY_PLATFORM_MONITOR, 0x1)