1/* 2 * Copyright (c) 2013-2020, Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32.import HalExcHandleEntry 33.extern g_trapStackBase 34 35#ifdef CPU_CK804 36.section .text 37.align 2 38.global HandleEntry 39HandleEntry: 40 mov r10, sp 41 lrw r14, g_trapStackBase 42 43 stm r0-r15, (sp) 44 stw r10, (sp, 56) 45 addi r0, sp, 64 46 stm r16-r31, (r0) 47 mfcr r0, epsr 48 stw r0, (sp, 128) 49 mfcr r0, epc 50 stw r0, (sp, 132) 51 mov r0, sp 52 53 mfcr r1, epc 54 55 mov sp, r10 56 lrw r2, HalExcHandleEntry 57 jmp r2 58 59.section .text 60.align 2 61.global IrqEntry 62IrqEntry: 63 psrset ee 64 subi sp, 136 65 stm r0-r15, (sp) 66 addi r0, sp, 64 67 stm r16-r31, (r0) 68 mfcr r0, epsr 69 stw r0, (sp, 128) 70 mfcr r0, epc 71 stw r0, (sp, 132) 72 73 jbsr HalInterrupt 74 75 ldw r0, (sp, 132) 76 mtcr r0, epc 77 ldw r0, (sp, 128) 78 bseti r0, r0, 6 79 mtcr r0, epsr 80 ldm r0-r15, (sp) 81 addi sp, 64 82 ldm r16-r31, (sp) 83 addi sp, 72 84 rte 85#else 86.section .text 87.align 2 88.global HandleEntry 89HandleEntry: 90 mov r10, sp 91 lrw r14, g_trapStackBase 92 93 stm r0-r15, (sp) 94 stw r10, (sp, 56) 95 mfcr r0, epsr 96 stw r0, (sp, 64) 97 mfcr r0, epc 98 stw r0, (sp, 68) 99 mov r0, sp 100 101 mfcr r1, epc 102 103 mov sp, r10 104 lrw r2, HalExcHandleEntry 105 jmp r2 106 107.section .text 108.align 2 109.global IrqEntry 110IrqEntry: 111 psrset ee 112 subi sp, 72 113 stm r0-r15, (sp) 114 mfcr r0, epsr 115 stw r0, (sp, 64) 116 mfcr r0, epc 117 stw r0, (sp, 68) 118 119 jbsr HalInterrupt 120 121 ldw r0, (sp, 68) 122 mtcr r0, epc 123 ldw r0, (sp, 64) 124 bseti r0, r0, 6 125 mtcr r0, epsr 126 ldm r0-r15, (sp) 127 addi sp, 72 128 rte 129#endif