xref: /arm-trusted-firmware/plat/arm/board/fvp/include/plat_macros.S (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)
1*91f16700Schasinglulu/*
2*91f16700Schasinglulu * Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
3*91f16700Schasinglulu *
4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause
5*91f16700Schasinglulu */
6*91f16700Schasinglulu#ifndef PLAT_MACROS_S
7*91f16700Schasinglulu#define PLAT_MACROS_S
8*91f16700Schasinglulu
9*91f16700Schasinglulu#include <arm_macros.S>
10*91f16700Schasinglulu#include <platform_def.h>
11*91f16700Schasinglulu
12*91f16700Schasinglulu	/* ---------------------------------------------
13*91f16700Schasinglulu	 * The below required platform porting macro
14*91f16700Schasinglulu	 * prints out relevant GIC registers whenever an
15*91f16700Schasinglulu	 * unhandled exception is taken in BL31.
16*91f16700Schasinglulu	 * Clobbers: x0 - x10, x16, x17, sp
17*91f16700Schasinglulu	 * ---------------------------------------------
18*91f16700Schasinglulu	 */
19*91f16700Schasinglulu	.macro plat_crash_print_regs
20*91f16700Schasinglulu	/*
21*91f16700Schasinglulu	 * Detect if we're using the base memory map or
22*91f16700Schasinglulu	 * the legacy VE memory map
23*91f16700Schasinglulu	 */
24*91f16700Schasinglulu	mov_imm	x0, (V2M_SYSREGS_BASE + V2M_SYS_ID)
25*91f16700Schasinglulu	ldr	w16, [x0]
26*91f16700Schasinglulu	/* Extract BLD (12th - 15th bits) from the SYS_ID */
27*91f16700Schasinglulu	ubfx	x16, x16, #V2M_SYS_ID_BLD_SHIFT, #4
28*91f16700Schasinglulu	/* Check if VE mmap */
29*91f16700Schasinglulu	cmp	w16, #BLD_GIC_VE_MMAP
30*91f16700Schasinglulu	b.eq	use_ve_mmap
31*91f16700Schasinglulu	/* Assume Base Cortex mmap */
32*91f16700Schasinglulu	mov_imm	x17, BASE_GICC_BASE
33*91f16700Schasinglulu	mov_imm	x16, BASE_GICD_BASE
34*91f16700Schasinglulu	b	print_gic_regs
35*91f16700Schasingluluuse_ve_mmap:
36*91f16700Schasinglulu	mov_imm	x17, VE_GICC_BASE
37*91f16700Schasinglulu	mov_imm	x16, VE_GICD_BASE
38*91f16700Schasingluluprint_gic_regs:
39*91f16700Schasinglulu	arm_print_gic_regs
40*91f16700Schasinglulu	.endm
41*91f16700Schasinglulu
42*91f16700Schasinglulu#endif /* PLAT_MACROS_S */
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