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git01.mediatek.com / filogic / atf / 96ee83ab433b02bb19499a10dc724576419da73e / . / include / plat / arm / common / aarch64 / arm_macros.S
blob: 8aacfb0a9367f59744e3068da0571fb893cb4102 [file] [log] [blame]
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]1/*
Alexei Fedorovc4dfb3b2019-07-29 13:34:07 +0100[diff] [blame]2 * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]3 *
dp-armfa3cf0b2017-05-03 09:38:09 +0100[diff] [blame]4 * SPDX-License-Identifier: BSD-3-Clause
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]5 */
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +0000[diff] [blame]6#ifndef ARM_MACROS_S
7#define ARM_MACROS_S
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]8
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000[diff] [blame]9#include <drivers/arm/gic_common.h>
10#include <drivers/arm/gicv2.h>
11#include <drivers/arm/gicv3.h>
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]12#include <platform_def.h>
13
14.section .rodata.gic_reg_name, "aS"
Soby Mathew12012dd2015-10-26 14:01:53 +0000[diff] [blame]15/* Applicable only to GICv2 and GICv3 with SRE disabled (legacy mode) */
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]16gicc_regs:
17 .asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", ""
Soby Mathew12012dd2015-10-26 14:01:53 +0000[diff] [blame]18
19/* Applicable only to GICv3 with SRE enabled */
20icc_regs:
21 .asciz "icc_hppir0_el1", "icc_hppir1_el1", "icc_ctlr_el3", ""
22
23/* Registers common to both GICv2 and GICv3 */
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]24gicd_pend_reg:
Alexei Fedorovc4dfb3b2019-07-29 13:34:07 +0100[diff] [blame]25 .asciz "gicd_ispendr regs (Offsets 0x200-0x278)\nOffset\t\t\tValue\n"
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]26newline:
27 .asciz "\n"
28spacer:
Alexei Fedorovc4dfb3b2019-07-29 13:34:07 +0100[diff] [blame]29 .asciz ":\t\t 0x"
30prefix:
31 .asciz "0x"
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]32
33 /* ---------------------------------------------
34 * The below utility macro prints out relevant GIC
35 * registers whenever an unhandled exception is
Juan Castillo7d199412015-12-14 09:35:25 +0000[diff] [blame]36 * taken in BL31 on ARM standard platforms.
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]37 * Expects: GICD base in x16, GICC base in x17
38 * Clobbers: x0 - x10, sp
39 * ---------------------------------------------
40 */
41 .macro arm_print_gic_regs
Moritz Fischer4ddeb862023-10-18 16:16:33 +0000[diff] [blame]42 /* Check for GICv3/v4 system register access.
43 * ID_AA64PFR0_GIC indicates presence of the CPU
44 * system registers by either 0b0011 or 0xb0001.
45 * A value of 0b000 means CPU system registers aren't
46 * available and the code needs to use the memory
47 * mapped registers like in GICv2.
48 */
Soby Mathew12012dd2015-10-26 14:01:53 +0000[diff] [blame]49 mrs x7, id_aa64pfr0_el1
50 ubfx x7, x7, #ID_AA64PFR0_GIC_SHIFT, #ID_AA64PFR0_GIC_WIDTH
Moritz Fischer4ddeb862023-10-18 16:16:33 +0000[diff] [blame]51 cmp x7, #0
52 b.eq print_gicv2
Soby Mathew12012dd2015-10-26 14:01:53 +0000[diff] [blame]53
54 /* Check for SRE enable */
55 mrs x8, ICC_SRE_EL3
56 tst x8, #ICC_SRE_SRE_BIT
57 b.eq print_gicv2
58
59 /* Load the icc reg list to x6 */
60 adr x6, icc_regs
61 /* Load the icc regs to gp regs used by str_in_crash_buf_print */
62 mrs x8, ICC_HPPIR0_EL1
63 mrs x9, ICC_HPPIR1_EL1
64 mrs x10, ICC_CTLR_EL3
65 /* Store to the crash buf and print to console */
66 bl str_in_crash_buf_print
67 b print_gic_common
68
69print_gicv2:
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]70 /* Load the gicc reg list to x6 */
71 adr x6, gicc_regs
72 /* Load the gicc regs to gp regs used by str_in_crash_buf_print */
73 ldr w8, [x17, #GICC_HPPIR]
74 ldr w9, [x17, #GICC_AHPPIR]
75 ldr w10, [x17, #GICC_CTLR]
76 /* Store to the crash buf and print to console */
77 bl str_in_crash_buf_print
78
Soby Mathew12012dd2015-10-26 14:01:53 +0000[diff] [blame]79print_gic_common:
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]80 /* Print the GICD_ISPENDR regs */
81 add x7, x16, #GICD_ISPENDR
82 adr x4, gicd_pend_reg
83 bl asm_print_str
84gicd_ispendr_loop:
85 sub x4, x7, x16
86 cmp x4, #0x280
87 b.eq exit_print_gic_regs
Alexei Fedorovc4dfb3b2019-07-29 13:34:07 +0100[diff] [blame]88
89 /* Print "0x" */
90 adr x4, prefix
91 bl asm_print_str
92
93 /* Print offset */
94 sub x4, x7, x16
95 mov x5, #12
96 bl asm_print_hex_bits
Dan Handley9df48042015-03-19 18:58:55 +0000[diff] [blame]97
98 adr x4, spacer
99 bl asm_print_str
100
101 ldr x4, [x7], #8
102 bl asm_print_hex
103
104 adr x4, newline
105 bl asm_print_str
106 b gicd_ispendr_loop
107exit_print_gic_regs:
108 .endm
109
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +0000[diff] [blame]110#endif /* ARM_MACROS_S */