plat_macros.S

/*
 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef PLAT_MACROS_S
#define PLAT_MACROS_S

#include <drivers/arm/gicv2.h>
#include <platform_def.h>

.section .rodata.gic_reg_name, "aS"

gicc_regs:
	.asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", ""
gicd_pend_reg:
	.asciz "gicd_ispendr regs (Offsets 0x200 - 0x278)\n Offset:\t\t\tvalue\n"
newline:
	.asciz "\n"
spacer:
	.asciz ":\t\t0x"

	/* ---------------------------------------------
	 * The below required platform porting macro
	 * prints out relevant GIC and CCI registers
	 * whenever an unhandled exception is taken in
	 * BL31.
	 * Clobbers: x0 - x10, x16, x17, sp
	 * ---------------------------------------------
	 */
	.macro plat_crash_print_regs

	/* GICC registers */

	mov_imm	x17, GXBB_GICC_BASE

	adr	x6, gicc_regs
	ldr	w8, [x17, #GICC_HPPIR]
	ldr	w9, [x17, #GICC_AHPPIR]
	ldr	w10, [x17, #GICC_CTLR]
	bl	str_in_crash_buf_print

	/* GICD registers */

	mov_imm	x16, GXBB_GICD_BASE

	add	x7, x16, #GICD_ISPENDR
	adr	x4, gicd_pend_reg
	bl	asm_print_str

gicd_ispendr_loop:
	sub	x4, x7, x16
	cmp	x4, #0x280
	b.eq	exit_print_gic_regs
	bl	asm_print_hex

	adr	x4, spacer
	bl	asm_print_str

	ldr	x4, [x7], #8
	bl	asm_print_hex

	adr	x4, newline
	bl	asm_print_str
	b	gicd_ispendr_loop
exit_print_gic_regs:

	.endm

#endif /* PLAT_MACROS_S */