| /* |
| * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| #ifndef __ARM_MACROS_S__ |
| #define __ARM_MACROS_S__ |
| |
| #include <gic_common.h> |
| #include <gicv2.h> |
| #include <gicv3.h> |
| #include <platform_def.h> |
| |
| .section .rodata.gic_reg_name, "aS" |
| /* Applicable only to GICv2 and GICv3 with SRE disabled (legacy mode) */ |
| gicc_regs: |
| .asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", "" |
| |
| /* Applicable only to GICv3 with SRE enabled */ |
| icc_regs: |
| .asciz "icc_hppir0_el1", "icc_hppir1_el1", "icc_ctlr_el3", "" |
| |
| /* Registers common to both GICv2 and GICv3 */ |
| 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 utility macro prints out relevant GIC |
| * registers whenever an unhandled exception is |
| * taken in BL31 on ARM standard platforms. |
| * Expects: GICD base in x16, GICC base in x17 |
| * Clobbers: x0 - x10, sp |
| * --------------------------------------------- |
| */ |
| .macro arm_print_gic_regs |
| /* Check for GICv3 system register access */ |
| mrs x7, id_aa64pfr0_el1 |
| ubfx x7, x7, #ID_AA64PFR0_GIC_SHIFT, #ID_AA64PFR0_GIC_WIDTH |
| cmp x7, #1 |
| b.ne print_gicv2 |
| |
| /* Check for SRE enable */ |
| mrs x8, ICC_SRE_EL3 |
| tst x8, #ICC_SRE_SRE_BIT |
| b.eq print_gicv2 |
| |
| /* Load the icc reg list to x6 */ |
| adr x6, icc_regs |
| /* Load the icc regs to gp regs used by str_in_crash_buf_print */ |
| mrs x8, ICC_HPPIR0_EL1 |
| mrs x9, ICC_HPPIR1_EL1 |
| mrs x10, ICC_CTLR_EL3 |
| /* Store to the crash buf and print to console */ |
| bl str_in_crash_buf_print |
| b print_gic_common |
| |
| print_gicv2: |
| /* Load the gicc reg list to x6 */ |
| adr x6, gicc_regs |
| /* Load the gicc regs to gp regs used by str_in_crash_buf_print */ |
| ldr w8, [x17, #GICC_HPPIR] |
| ldr w9, [x17, #GICC_AHPPIR] |
| ldr w10, [x17, #GICC_CTLR] |
| /* Store to the crash buf and print to console */ |
| bl str_in_crash_buf_print |
| |
| print_gic_common: |
| /* Print the GICD_ISPENDR regs */ |
| 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 /* __ARM_MACROS_S__ */ |
