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.section .text 36.align 2 37.global HandleEntry 38HandleEntry: 39 mov r10, sp 40 lrw r14, g_trapStackBase 41 42 stm r0-r15, (sp) 43 stw r10, (sp, 56) 44 mfcr r0, epsr 45 stw r0, (sp, 64) 46 mfcr r0, epc 47 stw r0, (sp, 68) 48 mov r0, sp 49 50 mfcr r1, epc 51 52 mov sp, r10 53 lrw r2, HalExcHandleEntry 54 jmp r2 55 56.section .text 57.align 2 58.global IrqEntry 59IrqEntry: 60 psrset ee 61 subi sp, 72 62 stm r0-r15, (sp) 63 mfcr r0, epsr 64 stw r0, (sp, 64) 65 mfcr r0, epc 66 stw r0, (sp, 68) 67 68 jbsr HalInterrupt 69 70 ldw r0, (sp, 68) 71 mtcr r0, epc 72 ldw r0, (sp, 64) 73 bseti r0, r0, 6 74 mtcr r0, epsr 75 ldm r0-r15, (sp) 76 addi sp, 72 77 rte 78