1*91f16700Schasinglulu/* 2*91f16700Schasinglulu * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * Copyright (c) 2018,2020, The Linux Foundation. All rights reserved. 4*91f16700Schasinglulu * 5*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu 8*91f16700Schasinglulu#ifndef __PLAT_MACROS_S__ 9*91f16700Schasinglulu#define __PLAT_MACROS_S__ 10*91f16700Schasinglulu 11*91f16700Schasinglulu#include <drivers/arm/gic_common.h> 12*91f16700Schasinglulu#include <drivers/arm/gicv2.h> 13*91f16700Schasinglulu#include <drivers/arm/gicv3.h> 14*91f16700Schasinglulu 15*91f16700Schasinglulu#include <platform_def.h> 16*91f16700Schasinglulu 17*91f16700Schasinglulu.section .rodata.gic_reg_name, "aS" 18*91f16700Schasinglulu/* Applicable only to GICv2 and GICv3 with SRE disabled (legacy mode) */ 19*91f16700Schasinglulugicc_regs: 20*91f16700Schasinglulu .asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", "" 21*91f16700Schasinglulu 22*91f16700Schasinglulu/* Applicable only to GICv3 with SRE enabled */ 23*91f16700Schasingluluicc_regs: 24*91f16700Schasinglulu .asciz "icc_hppir0_el1", "icc_hppir1_el1", "icc_ctlr_el3", "" 25*91f16700Schasinglulu 26*91f16700Schasinglulu/* Registers common to both GICv2 and GICv3 */ 27*91f16700Schasinglulugicd_pend_reg: 28*91f16700Schasinglulu .asciz "gicd_ispendr regs (Offsets 0x200 - 0x278)\n" \ 29*91f16700Schasinglulu " Offset:\t\t\tvalue\n" 30*91f16700Schasinglulunewline: 31*91f16700Schasinglulu .asciz "\n" 32*91f16700Schasingluluspacer: 33*91f16700Schasinglulu .asciz ":\t\t0x" 34*91f16700Schasinglulu 35*91f16700Schasinglulu/** Macro : plat_crash_print_regs 36*91f16700Schasinglulu * This macro allows the crash reporting routine to print GIC registers 37*91f16700Schasinglulu * in case of an unhandled exception in BL31. This aids in debugging and 38*91f16700Schasinglulu * this macro can be defined to be empty in case GIC register reporting is 39*91f16700Schasinglulu * not desired. 40*91f16700Schasinglulu * The below required platform porting macro 41*91f16700Schasinglulu * prints out relevant GIC registers whenever an 42*91f16700Schasinglulu * unhandled exception is taken in BL31. 43*91f16700Schasinglulu * Clobbers: x0 - x10, x26, x27, sp 44*91f16700Schasinglulu * --------------------------------------------- 45*91f16700Schasinglulu */ 46*91f16700Schasinglulu .macro plat_crash_print_regs 47*91f16700Schasingluluprint_gic_regs: 48*91f16700Schasinglulu ldr x26, =QTI_GICD_BASE 49*91f16700Schasinglulu ldr x27, =QTI_GICC_BASE 50*91f16700Schasinglulu 51*91f16700Schasinglulu /* Check for GICv3 system register access */ 52*91f16700Schasinglulu mrs x7, id_aa64pfr0_el1 53*91f16700Schasinglulu ubfx x7, x7, #ID_AA64PFR0_GIC_SHIFT, #ID_AA64PFR0_GIC_WIDTH 54*91f16700Schasinglulu cmp x7, #1 55*91f16700Schasinglulu b.ne print_gicv2 56*91f16700Schasinglulu 57*91f16700Schasinglulu /* Check for SRE enable */ 58*91f16700Schasinglulu mrs x8, ICC_SRE_EL3 59*91f16700Schasinglulu tst x8, #ICC_SRE_SRE_BIT 60*91f16700Schasinglulu b.eq print_gicv2 61*91f16700Schasinglulu 62*91f16700Schasinglulu /* Load the icc reg list to x6 */ 63*91f16700Schasinglulu adr x6, icc_regs 64*91f16700Schasinglulu /* Load the icc regs to gp regs used by str_in_crash_buf_print */ 65*91f16700Schasinglulu mrs x8, ICC_HPPIR0_EL1 66*91f16700Schasinglulu mrs x9, ICC_HPPIR1_EL1 67*91f16700Schasinglulu mrs x10, ICC_CTLR_EL3 68*91f16700Schasinglulu /* Store to the crash buf and print to console */ 69*91f16700Schasinglulu bl str_in_crash_buf_print 70*91f16700Schasinglulu b print_gic_common 71*91f16700Schasinglulu 72*91f16700Schasingluluprint_gicv2: 73*91f16700Schasinglulu /* Load the gicc reg list to x6 */ 74*91f16700Schasinglulu adr x6, gicc_regs 75*91f16700Schasinglulu /* Load the gicc regs to gp regs used by str_in_crash_buf_print */ 76*91f16700Schasinglulu ldr w8, [x27, #GICC_HPPIR] 77*91f16700Schasinglulu ldr w9, [x27, #GICC_AHPPIR] 78*91f16700Schasinglulu ldr w10, [x27, #GICC_CTLR] 79*91f16700Schasinglulu /* Store to the crash buf and print to console */ 80*91f16700Schasinglulu bl str_in_crash_buf_print 81*91f16700Schasinglulu 82*91f16700Schasingluluprint_gic_common: 83*91f16700Schasinglulu /* Print the GICD_ISPENDR regs */ 84*91f16700Schasinglulu add x7, x26, #GICD_ISPENDR 85*91f16700Schasinglulu adr x4, gicd_pend_reg 86*91f16700Schasinglulu bl asm_print_str 87*91f16700Schasinglulugicd_ispendr_loop: 88*91f16700Schasinglulu sub x4, x7, x26 89*91f16700Schasinglulu cmp x4, #0x280 90*91f16700Schasinglulu b.eq exit_print_gic_regs 91*91f16700Schasinglulu bl asm_print_hex 92*91f16700Schasinglulu 93*91f16700Schasinglulu adr x4, spacer 94*91f16700Schasinglulu bl asm_print_str 95*91f16700Schasinglulu 96*91f16700Schasinglulu ldr x4, [x7], #8 97*91f16700Schasinglulu bl asm_print_hex 98*91f16700Schasinglulu 99*91f16700Schasinglulu adr x4, newline 100*91f16700Schasinglulu bl asm_print_str 101*91f16700Schasinglulu b gicd_ispendr_loop 102*91f16700Schasingluluexit_print_gic_regs: 103*91f16700Schasinglulu 104*91f16700Schasinglulu .endm 105*91f16700Schasinglulu 106*91f16700Schasinglulu#endif /* __PLAT_MACROS_S__ */ 107