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#define OS_TASK_STATUS_RUNNING 0x0010 33#define VIC_TSPDR 0XE000EC08 34 35.section .text 36.align 2 37.type HalStartToRun, %function 38.global HalStartToRun 39HalStartToRun: 40 lrw r1, g_losTask 41 lrw r2, g_losTask + 4 42 43 ldw r0, (r2) 44 45 st.w r0, (r1) 46 st.w r0, (r2) 47 48 ldw sp, (r0) 49 50 ldw r0, (sp, 64) 51 mtcr r0, epc 52 ldw r0, (sp, 60) 53 mtcr r0, epsr 54 ldw r15, (sp, 56) 55 ldm r0-r13, (sp) 56 57 rte 58 59.align 2 60.type HalTaskContextSwitch, %function 61.global HalTaskContextSwitch 62HalTaskContextSwitch: 63 64 subi sp, 68 65 stm r0-r13, (sp) 66 stw r15, (sp, 56) 67 mfcr r1, psr 68 stw r1, (sp, 60) 69 stw r15, (sp, 64) 70 lrw r2, g_losTask 71 ldw r0, (r2) 72 stw sp, (r0) 73 74 lrw r3, g_losTask + 4 75 ldw r0, (r3) 76 stw r0, (r2) 77 78 ldw sp, (r0) 79 ldw r0, (sp, 64) 80 mtcr r0, epc 81 ldw r0, (sp, 60) 82 mtcr r0, epsr 83 ldw r15, (sp, 56) 84 ldm r0-r13, (sp) 85 86 addi sp, 68 87 88 rte 89 90