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/*
 * Copyright (c) 2014, 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 <gic_v2.h>
#include <platform.h>

.section .rodata.gic_reg_name, "aS"
gic_regs: .asciz "gic_iar", "gic_ctlr", ""

/* Currently we have only 2 GIC registers to report */
#define GIC_REG_SIZE 				(2 * 8)
	/* ---------------------------------------------
	 * The below macro prints out relevant GIC
	 * registers whenever an unhandled exception is
	 * taken in BL31.
	 * ---------------------------------------------
	 */
	.macro plat_print_gic_regs
	mov	x0, #CONFIG_GICC_ADDR
	bl	platform_get_cfgvar
	/* gic base address is now in x0 */
	ldr	w1, [x0, #GICC_IAR]
	ldr	w2, [x0, #GICD_CTLR]
	sub	sp, sp, #GIC_REG_SIZE
	stp	x1, x2, [sp] /* we store the gic registers as 64 bit */
	adr	x0, gic_regs
	mov	x1, sp
	bl	print_string_value
	add	sp, sp, #GIC_REG_SIZE
	.endm