src/freedreno/ir3/tests/disasm.c

   1 /*
   2  * Copyright © 2016 Broadcom
   3  * Copyright © 2020 Google LLC
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include "util/macros.h"
  29 #include "instr-a3xx.h"
  30
  31 #define INSTR_6XX(i, d) { .gpu_id = 630, .instr = #i, .expected = d }
  32
  33 static const struct test {
  34         int gpu_id;
  35         const char *instr;
  36         const char *expected;
  37 } tests[] = {
  38         /* cat0 */
  39         INSTR_6XX(00000000_00000000, "nop"),
  40         INSTR_6XX(00000200_00000000, "(rpt2)nop"),
  41         INSTR_6XX(03000000_00000000, "end"),
  42         INSTR_6XX(00800000_00000004, "br p0.x, #4"),
  43         INSTR_6XX(00900000_00000003, "br !p0.x, #3"),
  44         INSTR_6XX(03820000_00000015, "shps #21"), /* emit */
  45         INSTR_6XX(04021000_00000000, "(ss)shpe"), /* cut */
  46         INSTR_6XX(02820000_00000014, "getone #20"), /* kill p0.x */
  47
  48         /* cat1 */
  49         INSTR_6XX(20244000_00000020, "mov.f32f32 r0.x, c8.x"),
  50         INSTR_6XX(20200000_00000020, "mov.f16f16 hr0.x, hc8.x"),
  51         INSTR_6XX(20150000_00000000, "cov.s32s16 hr0.x, r0.x"),
  52         INSTR_6XX(20156004_00000c11, "(ul)mov.s32s32 r1.x, c<a0.x + 17>"),
  53         INSTR_6XX(201100f4_00000000, "mova a0.x, hr0.x"),
  54         INSTR_6XX(20244905_00000410, "(rpt1)mov.f32f32 r1.y, (r)c260.x"),
  55
  56         /* cat2 */
  57         INSTR_6XX(40104002_0c210001, "add.f hr0.z, r0.y, c<a0.x + 33>"),
  58         INSTR_6XX(40b80804_10408004, "(nop3) cmps.f.lt r1.x, (abs)r1.x, c16.x"),
  59         INSTR_6XX(47308a02_00002000, "(rpt2)bary.f (ei)r0.z, (r)0, r0.x"),
  60         INSTR_6XX(43480801_00008001, "(nop3) absneg.s hr0.y, (abs)hr0.y"),
  61
  62         /* cat3 */
  63         INSTR_6XX(66000000_10421041, "sel.f16 hr0.x, hc16.y, hr0.x, hc16.z"),
  64         INSTR_6XX(64848109_109a9099, "(rpt1)sel.b32 r2.y, c38.y, (r)r2.y, c38.z"),
  65         INSTR_6XX(64810904_30521036, "(rpt1)sel.b32 r1.x, (r)c13.z, r0.z, (r)c20.z"),
  66         INSTR_6XX(64818902_20041032, "(rpt1)sel.b32 r0.z, (r)c12.z, r0.w, (r)r1.x"),
  67         INSTR_6XX(63820005_10315030, "mad.f32 r1.y, (neg)c12.x, r1.x, c12.y"),
  68         INSTR_6XX(62050009_00091000, "mad.u24 r2.y, c0.x, r2.z, r2.y"),
  69
  70         /* cat4 */
  71         INSTR_6XX(8010000a_00000003, "rcp r2.z, r0.w"),
  72
  73         /* cat5 */
  74         INSTR_6XX(a2802f00_00000001, "getsize (u16)(xyzw)hr0.x, r0.x, t#0"),
  75
  76         /* cat6 */
  77         INSTR_6XX(c0c00000_00000000, "stg.f16 g[hr0.x], hr0.x, hr0.x"),
  78         INSTR_6XX(c1100000_c1000000, "stl.f16 l[0], hr0.x, hr48.y"),
  79         INSTR_6XX(c0260000_0063c200, "resinfo.untyped.2d.u32.1 r0.x, r0.x, 0"), /* resinfo.u32.2d.mode0.base0 r0.x, 0 */
  80         INSTR_6XX(c0260000_0063c000, "resinfo.untyped.1d.u32.1 r0.x, r0.x, 0"), /* resinfo.u32.1d.mode0.base0 r0.x, 0 */
  81
  82         /* discard stuff */
  83         INSTR_6XX(42b400f8_20010004, "cmps.s.eq p0.x, r1.x, 1"),
  84         INSTR_6XX(02800000_00000000, "kill p0.x"),
  85
  86         /* Immediates */
  87         INSTR_6XX(40100007_68000008, "add.f r1.w, r2.x, (neg)(0.0)"),
  88         INSTR_6XX(40100007_68010008, "add.f r1.w, r2.x, (neg)(0.5)"),
  89         INSTR_6XX(40100007_68020008, "add.f r1.w, r2.x, (neg)(1.0)"),
  90         INSTR_6XX(40100007_68030008, "add.f r1.w, r2.x, (neg)(2.0)"),
  91         INSTR_6XX(40100007_68040008, "add.f r1.w, r2.x, (neg)(e)"),
  92         INSTR_6XX(40100007_68050008, "add.f r1.w, r2.x, (neg)(pi)"),
  93         INSTR_6XX(40100007_68060008, "add.f r1.w, r2.x, (neg)(1/pi)"),
  94         INSTR_6XX(40100007_68070008, "add.f r1.w, r2.x, (neg)(1/log2(e))"),
  95         INSTR_6XX(40100007_68080008, "add.f r1.w, r2.x, (neg)(log2(e))"),
  96         INSTR_6XX(40100007_68090008, "add.f r1.w, r2.x, (neg)(1/log2(10))"),
  97         INSTR_6XX(40100007_680a0008, "add.f r1.w, r2.x, (neg)(log2(10))"),
  98         INSTR_6XX(40100007_680b0008, "add.f r1.w, r2.x, (neg)(4.0)"),
  99
 100         /* LDC.  Our disasm differs greatly from qcom here, and we've got some
 101          * important info they lack(?!), but same goes the other way.
 102          */
 103         /* dEQP-GLES31.functional.shaders.opaque_type_indexing.ubo.uniform_fragment */
 104         INSTR_6XX(c0260000_00c78040, "ldc.offset0.1 r0.x, r0.x, 0"), /* ldc.1.mode1.base0 r0.x, 0, r0.x */
 105         INSTR_6XX(c0260201_00c78040, "ldc.offset0.1 r0.y, r0.x, 1"), /* ldc.1.mode1.base0 r0.y, 0, r0.y */
 106         /* dEQP-GLES31.functional.shaders.opaque_type_indexing.ubo.dynamically_uniform_fragment  */
 107         INSTR_6XX(c0260000_00c78080, "ldc.offset0.1 r0.x, r0.x, 0"), /* ldc.1.mode2.base0 r0.x, 0, r0.x */
 108         INSTR_6XX(c0260201_00c78080, "ldc.offset0.1 r0.y, r0.x, 1"), /* ldc.1.mode2.base0 r0.y, 0, r0.y */
 109         /* custom shaders, loading .x, .y, .z, .w from an array of vec4 in block 0 */
 110         INSTR_6XX(c0260000_00478000, "ldc.offset0.1 r0.x, r0.x, 0"), /* ldc.1.mode0.base0 r0.x, r0.x, 0 */
 111         INSTR_6XX(c0260000_00478200, "ldc.offset1.1 r0.x, r0.x, 0"), /* ldc.1.mode0.base0 r0.x, r0.x, 0 */
 112         INSTR_6XX(c0260000_00478400, "ldc.offset2.1 r0.x, r0.x, 0"), /* ldc.1.mode0.base0 r0.x, r0.x, 0 */
 113         INSTR_6XX(c0260000_00478600, "ldc.offset3.1 r0.x, r0.x, 0"), /* ldc.1.mode0.base0 r0.x, r0.x, 0 */
 114
 115         /* dEQP-GLES31.functional.shaders.opaque_type_indexing.sampler.const_literal.fragment.sampler2d */
 116         INSTR_6XX(a0c01f04_0cc00005, "sam (f32)(xyzw)r1.x, r0.z, s#6, t#6"),
 117         /* dEQP-GLES31.functional.shaders.opaque_type_indexing.sampler.uniform.fragment.sampler2d (looks like maybe the compiler didn't figure out */
 118         INSTR_6XX(a0c81f07_0100000b, "sam.s2en (f32)(xyzw)r1.w, r1.y, hr2.x"), /* sam.s2en.mode0 (f32)(xyzw)r1.w, r1.y, hr2.x */
 119         /* dEQP-GLES31.functional.shaders.opaque_type_indexing.sampler.dynamically_uniform.fragment.sampler2d */
 120         INSTR_6XX(a0c81f07_8100000b, "sam.s2en.uniform (f32)(xyzw)r1.w, r1.y, hr2.x"), /* sam.s2en.mode4 (f32)(xyzw)r1.w, r1.y, hr2.x */
 121 };
 122
 123 static void
 124 trim(char *string)
 125 {
 126         for (int len = strlen(string); len > 0 && string[len - 1] == '\n'; len--)
 127                 string[len - 1] = 0;
 128 }
 129
 130 int
 131 main(int argc, char **argv)
 132 {
 133         int retval = 0;
 134         const int output_size = 4096;
 135         char *disasm_output = malloc(output_size);
 136         FILE *fdisasm = fmemopen(disasm_output, output_size, "w+");
 137         if (!fdisasm) {
 138                 fprintf(stderr, "failed to fmemopen\n");
 139                 return 1;
 140         }
 141
 142         for (int i = 0; i < ARRAY_SIZE(tests); i++) {
 143                 const struct test *test = &tests[i];
 144                 printf("Testing a%d %s: \"%s\"...\n",
 145                                 test->gpu_id, test->instr, test->expected);
 146
 147                 rewind(fdisasm);
 148                 memset(disasm_output, 0, output_size);
 149
 150                 uint32_t code[2] = {
 151                         strtoll(&test->instr[9], NULL, 16),
 152                         strtoll(&test->instr[0], NULL, 16),
 153                 };
 154                 disasm_a3xx(code, ARRAY_SIZE(code), 0, fdisasm, test->gpu_id);
 155                 fflush(fdisasm);
 156
 157                 trim(disasm_output);
 158
 159                 if (strcmp(disasm_output, test->expected) != 0) {
 160                         printf("FAIL\n");
 161                         printf("  Expected: \"%s\"\n", test->expected);
 162                         printf("  Got:      \"%s\"\n", disasm_output);
 163                         retval = 1;
 164                         continue;
 165                 }
 166         }
 167
 168         fclose(fdisasm);
 169         free(disasm_output);
 170
 171         return retval;
 172 }