projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 0ae76531 DF |
1 | /* |
| 2 | * (C) Copyright 2013 | |
| 3 | * David Feng <fenghua@phytium.com.cn> | |
| 4 | * | |
| 5 | * SPDX-License-Identifier: GPL-2.0+ | |
| 6 | */ | |
| 7 | ||
| 8 | #include <asm-offsets.h> | |
| 9 | #include <config.h> | |
| 0ae76531 DF |
10 | #include <asm/ptrace.h> |
| 11 | #include <asm/macro.h> | |
| 12 | #include <linux/linkage.h> | |
| 13 | ||
| 78ad457b AP |
14 | /* |
| 15 | * Exception vectors. | |
| 16 | */ | |
| 17 | .align 11 | |
| 18 | .globl vectors | |
| 19 | vectors: | |
| 20 | .align 7 /* Current EL Synchronous Thread */ | |
| 21 | stp x29, x30, [sp, #-16]! | |
| 22 | bl _exception_entry | |
| 23 | bl do_bad_sync | |
| 24 | b exception_exit | |
| 25 | ||
| 26 | .align 7 /* Current EL IRQ Thread */ | |
| 27 | stp x29, x30, [sp, #-16]! | |
| 28 | bl _exception_entry | |
| 29 | bl do_bad_irq | |
| 30 | b exception_exit | |
| 31 | ||
| 32 | .align 7 /* Current EL FIQ Thread */ | |
| 33 | stp x29, x30, [sp, #-16]! | |
| 34 | bl _exception_entry | |
| 35 | bl do_bad_fiq | |
| 36 | b exception_exit | |
| 37 | ||
| 38 | .align 7 /* Current EL Error Thread */ | |
| 39 | stp x29, x30, [sp, #-16]! | |
| 40 | bl _exception_entry | |
| 41 | bl do_bad_error | |
| 42 | b exception_exit | |
| 43 | ||
| 44 | .align 7 /* Current EL Synchronous Handler */ | |
| 45 | stp x29, x30, [sp, #-16]! | |
| 46 | bl _exception_entry | |
| 47 | bl do_sync | |
| 48 | b exception_exit | |
| 49 | ||
| 50 | .align 7 /* Current EL IRQ Handler */ | |
| 51 | stp x29, x30, [sp, #-16]! | |
| 52 | bl _exception_entry | |
| 53 | bl do_irq | |
| 54 | b exception_exit | |
| 55 | ||
| 56 | .align 7 /* Current EL FIQ Handler */ | |
| 57 | stp x29, x30, [sp, #-16]! | |
| 58 | bl _exception_entry | |
| 59 | bl do_fiq | |
| 60 | b exception_exit | |
| 61 | ||
| 62 | .align 7 /* Current EL Error Handler */ | |
| 63 | stp x29, x30, [sp, #-16]! | |
| 64 | bl _exception_entry | |
| 65 | bl do_error | |
| 66 | b exception_exit | |
| 67 | ||
| 0ae76531 DF |
68 | /* |
| 69 | * Enter Exception. | |
| 70 | * This will save the processor state that is ELR/X0~X30 | |
| 71 | * to the stack frame. | |
| 72 | */ | |
| 78ad457b | 73 | _exception_entry: |
| 0ae76531 DF |
74 | stp x27, x28, [sp, #-16]! |
| 75 | stp x25, x26, [sp, #-16]! | |
| 76 | stp x23, x24, [sp, #-16]! | |
| 77 | stp x21, x22, [sp, #-16]! | |
| 78 | stp x19, x20, [sp, #-16]! | |
| 79 | stp x17, x18, [sp, #-16]! | |
| 80 | stp x15, x16, [sp, #-16]! | |
| 81 | stp x13, x14, [sp, #-16]! | |
| 82 | stp x11, x12, [sp, #-16]! | |
| 83 | stp x9, x10, [sp, #-16]! | |
| 84 | stp x7, x8, [sp, #-16]! | |
| 85 | stp x5, x6, [sp, #-16]! | |
| 86 | stp x3, x4, [sp, #-16]! | |
| 87 | stp x1, x2, [sp, #-16]! | |
| 88 | ||
| 89 | /* Could be running at EL3/EL2/EL1 */ | |
| 90 | switch_el x11, 3f, 2f, 1f | |
| 91 | 3: mrs x1, esr_el3 | |
| 92 | mrs x2, elr_el3 | |
| 93 | b 0f | |
| 94 | 2: mrs x1, esr_el2 | |
| 95 | mrs x2, elr_el2 | |
| 96 | b 0f | |
| 97 | 1: mrs x1, esr_el1 | |
| 98 | mrs x2, elr_el1 | |
| 99 | 0: | |
| 100 | stp x2, x0, [sp, #-16]! | |
| 101 | mov x0, sp | |
| 78ad457b | 102 | ret |
| 0ae76531 | 103 | |
| 4c2cc7c4 AG |
104 | |
| 105 | exception_exit: | |
| 106 | ldp x2, x0, [sp],#16 | |
| 107 | switch_el x11, 3f, 2f, 1f | |
| 108 | 3: msr elr_el3, x2 | |
| 109 | b 0f | |
| 110 | 2: msr elr_el2, x2 | |
| 111 | b 0f | |
| 112 | 1: msr elr_el1, x2 | |
| 113 | 0: | |
| 114 | ldp x1, x2, [sp],#16 | |
| 115 | ldp x3, x4, [sp],#16 | |
| 116 | ldp x5, x6, [sp],#16 | |
| 117 | ldp x7, x8, [sp],#16 | |
| 118 | ldp x9, x10, [sp],#16 | |
| 119 | ldp x11, x12, [sp],#16 | |
| 120 | ldp x13, x14, [sp],#16 | |
| 121 | ldp x15, x16, [sp],#16 | |
| 122 | ldp x17, x18, [sp],#16 | |
| 123 | ldp x19, x20, [sp],#16 | |
| 124 | ldp x21, x22, [sp],#16 | |
| 125 | ldp x23, x24, [sp],#16 | |
| 126 | ldp x25, x26, [sp],#16 | |
| 127 | ldp x27, x28, [sp],#16 | |
| 128 | ldp x29, x30, [sp],#16 | |
| 129 | eret |