1/****************************************************************************** 2 * Copyright © 2018, VideoLAN and dav1d authors 3 * Copyright © 2015 Martin Storsjo 4 * Copyright © 2015 Janne Grunau 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright notice, this 11 * list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 26 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 *****************************************************************************/ 28 29#ifndef DAV1D_SRC_ARM_32_UTIL_S 30#define DAV1D_SRC_ARM_32_UTIL_S 31 32#include "config.h" 33#include "src/arm/asm.S" 34 35.macro movrel_local rd, val, offset=0 36#if defined(PIC) 37 ldr \rd, 90001f 38 b 90002f 3990001: 40 .word \val + \offset - (90002f + 8 - 4 * CONFIG_THUMB) 4190002: 42 add \rd, \rd, pc 43#else 44 movw \rd, #:lower16:\val+\offset 45 movt \rd, #:upper16:\val+\offset 46#endif 47.endm 48 49.macro movrel rd, val, offset=0 50#if defined(PIC) && defined(__APPLE__) 51 ldr \rd, 1f 52 b 2f 531: 54 .word 3f - (2f + 8 - 4 * CONFIG_THUMB) 552: 56 ldr \rd, [pc, \rd] 57.if \offset < 0 58 sub \rd, \rd, #-(\offset) 59.elseif \offset > 0 60 add \rd, \rd, #\offset 61.endif 62 .non_lazy_symbol_pointer 633: 64 .indirect_symbol \val 65 .word 0 66 .text 67#else 68 movrel_local \rd, \val, \offset 69#endif 70.endm 71 72// This macro clobbers r7 (and r12 on windows) and stores data at the 73// bottom of the stack; sp is the start of the space allocated that 74// the caller can use. 75.macro sub_sp_align space 76#if CONFIG_THUMB 77 mov r7, sp 78 and r7, r7, #15 79#else 80 and r7, sp, #15 81#endif 82 sub sp, sp, r7 83 // Now the stack is aligned, store the amount of adjustment back 84 // on the stack, as we don't want to waste a register as frame 85 // pointer. 86 str r7, [sp, #-16]! 87#ifdef _WIN32 88.if \space > 8192 89 // Here, we'd need to touch two (or more) pages while decrementing 90 // the stack pointer. 91 .error "sub_sp_align doesn't support values over 8K at the moment" 92.elseif \space > 4096 93 sub r7, sp, #4096 94 ldr r12, [r7] 95 sub r7, r7, #(\space - 4096) 96 mov sp, r7 97.else 98 sub sp, sp, #\space 99.endif 100#else 101.if \space >= 4096 102 sub sp, sp, #(\space)/4096*4096 103.endif 104.if (\space % 4096) != 0 105 sub sp, sp, #(\space)%4096 106.endif 107#endif 108.endm 109 110.macro add_sp_align space 111.if \space >= 4096 112 add sp, sp, #(\space)/4096*4096 113.endif 114.if (\space % 4096) != 0 115 add sp, sp, #(\space)%4096 116.endif 117 ldr r7, [sp], #16 118 // Add back the original stack adjustment 119 add sp, sp, r7 120.endm 121 122.macro transpose_8x8b q0, q1, q2, q3, r0, r1, r2, r3, r4, r5, r6, r7 123 vtrn.32 \q0, \q2 124 vtrn.32 \q1, \q3 125 126 vtrn.16 \r0, \r2 127 vtrn.16 \r1, \r3 128 vtrn.16 \r4, \r6 129 vtrn.16 \r5, \r7 130 131 vtrn.8 \r0, \r1 132 vtrn.8 \r2, \r3 133 vtrn.8 \r4, \r5 134 vtrn.8 \r6, \r7 135.endm 136 137.macro transpose_8x8h r0, r1, r2, r3, r4, r5, r6, r7, d0, d1, d2, d3, d4, d5, d6, d7 138 vswp \d0, \d4 139 vswp \d1, \d5 140 vswp \d2, \d6 141 vswp \d3, \d7 142 143 vtrn.32 \r0, \r2 144 vtrn.32 \r1, \r3 145 vtrn.32 \r4, \r6 146 vtrn.32 \r5, \r7 147 148 vtrn.16 \r0, \r1 149 vtrn.16 \r2, \r3 150 vtrn.16 \r4, \r5 151 vtrn.16 \r6, \r7 152.endm 153 154.macro transpose_4x8b q0, q1, r0, r1, r2, r3 155 vtrn.16 \q0, \q1 156 157 vtrn.8 \r0, \r1 158 vtrn.8 \r2, \r3 159.endm 160 161.macro transpose_4x4s q0, q1, q2, q3, r0, r1, r2, r3, r4, r5, r6, r7 162 vswp \r1, \r4 // vtrn.64 \q0, \q2 163 vswp \r3, \r6 // vtrn.64 \q1, \q3 164 165 vtrn.32 \q0, \q1 166 vtrn.32 \q2, \q3 167.endm 168 169.macro transpose_4x4h q0, q1, r0, r1, r2, r3 170 vtrn.32 \q0, \q1 171 172 vtrn.16 \r0, \r1 173 vtrn.16 \r2, \r3 174.endm 175 176.macro transpose_4x8h r0, r1, r2, r3 177 vtrn.32 \r0, \r2 178 vtrn.32 \r1, \r3 179 180 vtrn.16 \r0, \r1 181 vtrn.16 \r2, \r3 182.endm 183 184#endif /* DAV1D_SRC_ARM_32_UTIL_S */ 185