From: Eric Anholt Date: Thu, 23 Apr 2020 19:01:04 +0000 (-0700) Subject: freedreno/ir3: Add a unit test for our disassembler. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1462b00391711ff86350e802c1a3e5075a3a1632;p=mesa.git freedreno/ir3: Add a unit test for our disassembler. Makes sure that we can maintain consistent output from our disassembly as we refactor. I've only included stuff that matches qcom's disasm so far. Part-of: --- diff --git a/src/freedreno/ir3/meson.build b/src/freedreno/ir3/meson.build index a9268b04c36..5299ecad744 100644 --- a/src/freedreno/ir3/meson.build +++ b/src/freedreno/ir3/meson.build @@ -111,3 +111,13 @@ libfreedreno_ir3 = static_library( build_by_default : false, ) +test('ir3_disasm', + executable( + 'ir3_disasm', + 'tests/disasm.c', + link_with: libfreedreno_ir3, + dependencies: idep_mesautil, + include_directories: [inc_freedreno, inc_include, inc_src], + ), + suite: ['freedreno'], +) diff --git a/src/freedreno/ir3/tests/disasm.c b/src/freedreno/ir3/tests/disasm.c new file mode 100644 index 00000000000..b6aa5ed39d5 --- /dev/null +++ b/src/freedreno/ir3/tests/disasm.c @@ -0,0 +1,131 @@ +/* + * Copyright © 2016 Broadcom + * Copyright © 2020 Google LLC + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include +#include +#include +#include "util/macros.h" +#include "instr-a3xx.h" + +#define INSTR_6XX(i, d) { .gpu_id = 630, .instr = #i, .expected = d } + +static const struct test { + int gpu_id; + const char *instr; + const char *expected; +} tests[] = { + /* cat0 */ + INSTR_6XX(00000000_00000000, "nop"), + INSTR_6XX(00000200_00000000, "(rpt2)nop"), + INSTR_6XX(03000000_00000000, "end"), + INSTR_6XX(00800000_00000004, "br p0.x, #4"), + INSTR_6XX(00900000_00000003, "br !p0.x, #3"), + + /* cat1 */ + INSTR_6XX(20244000_00000020, "mov.f32f32 r0.x, c8.x"), + INSTR_6XX(20200000_00000020, "mov.f16f16 hr0.x, hc8.x"), + INSTR_6XX(20150000_00000000, "cov.s32s16 hr0.x, r0.x"), + INSTR_6XX(20156004_00000c11, "(ul)mov.s32s32 r1.x, c"), + INSTR_6XX(201100f4_00000000, "mova a0.x, hr0.x"), + INSTR_6XX(20244905_00000410, "(rpt1)mov.f32f32 r1.y, (r)c260.x"), + + /* cat2 */ + INSTR_6XX(40104002_0c210001, "add.f hr0.z, r0.y, c"), + INSTR_6XX(40b80804_10408004, "(nop3) cmps.f.lt r1.x, (abs)r1.x, c16.x"), + INSTR_6XX(47308a02_00002000, "(rpt2)bary.f (ei)r0.z, (r)0, r0.x"), + INSTR_6XX(43480801_00008001, "(nop3) absneg.s hr0.y, (abs)hr0.y"), + + /* cat3 */ + INSTR_6XX(66000000_10421041, "sel.f16 hr0.x, hc16.y, hr0.x, hc16.z"), + INSTR_6XX(64848109_109a9099, "(rpt1)sel.b32 r2.y, c38.y, (r)r2.y, c38.z"), + INSTR_6XX(64810904_30521036, "(rpt1)sel.b32 r1.x, (r)c13.z, r0.z, (r)c20.z"), + INSTR_6XX(64818902_20041032, "(rpt1)sel.b32 r0.z, (r)c12.z, r0.w, (r)r1.x"), + INSTR_6XX(63820005_10315030, "mad.f32 r1.y, (neg)c12.x, r1.x, c12.y"), + INSTR_6XX(62050009_00091000, "mad.u24 r2.y, c0.x, r2.z, r2.y"), + + /* cat4 */ + INSTR_6XX(8010000a_00000003, "rcp r2.z, r0.w"), + + /* cat5 */ + INSTR_6XX(a2802f00_00000001, "getsize (u16)(xyzw)hr0.x, r0.x, t#0"), + + /* cat6 */ + INSTR_6XX(c0c00000_00000000, "stg.f16 g[hr0.x], hr0.x, hr0.x"), + INSTR_6XX(c1100000_c1000000, "stl.f16 l[0], hr0.x, hr48.y"), + + /* discard stuff */ + INSTR_6XX(42b400f8_20010004, "cmps.s.eq p0.x, r1.x, 1"), + INSTR_6XX(02800000_00000000, "kill p0.x"), +}; + +static void +trim(char *string) +{ + for (int len = strlen(string); len > 0 && string[len - 1] == '\n'; len--) + string[len - 1] = 0; +} + +int +main(int argc, char **argv) +{ + int retval = 0; + const int output_size = 4096; + char *disasm_output = malloc(output_size); + FILE *fdisasm = fmemopen(disasm_output, output_size, "w+"); + if (!fdisasm) { + fprintf(stderr, "failed to fmemopen\n"); + return 1; + } + + for (int i = 0; i < ARRAY_SIZE(tests); i++) { + const struct test *test = &tests[i]; + printf("Testing a%d %s: \"%s\"...\n", + test->gpu_id, test->instr, test->expected); + + rewind(fdisasm); + memset(disasm_output, 0, output_size); + + uint32_t code[2] = { + strtoll(&test->instr[9], NULL, 16), + strtoll(&test->instr[0], NULL, 16), + }; + disasm_a3xx(code, ARRAY_SIZE(code), 0, fdisasm, test->gpu_id); + fflush(fdisasm); + + trim(disasm_output); + + if (strcmp(disasm_output, test->expected) != 0) { + printf("FAIL\n"); + printf(" Expected: \"%s\"\n", test->expected); + printf(" Got: \"%s\"\n", disasm_output); + retval = 1; + continue; + } + } + + fclose(fdisasm); + free(disasm_output); + + return retval; +}