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panfrost/midgard: Dump shader-db stats 

All the kool kids are doing it.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-07-08 16:42:29 -07:00
parent a2f1a06a5e
commit 138e40d471
2 changed files with 40 additions and 0 deletions
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1
src/gallium/drivers/panfrost/midgard/midgard.h
View File

@ -33,6 +33,7 @@
#define MIDGARD_DBG_MSGS 0x0001
#define MIDGARD_DBG_SHADERS 0x0002
#define MIDGARD_DBG_SHADERDB 0x0004
extern int midgard_debug;

39
src/gallium/drivers/panfrost/midgard/midgard_compile.c
View File

@ -54,11 +54,14 @@
static const struct debug_named_value debug_options[] = {
{"msgs", MIDGARD_DBG_MSGS, "Print debug messages"},
{"shaders", MIDGARD_DBG_SHADERS, "Dump shaders in NIR and MIR"},
{"shaderdb", MIDGARD_DBG_SHADERDB, "Prints shader-db statistics"},
DEBUG_NAMED_VALUE_END
};
DEBUG_GET_ONCE_FLAGS_OPTION(midgard_debug, "MIDGARD_MESA_DEBUG", debug_options, 0)
unsigned SHADER_DB_COUNT = 0;
int midgard_debug = 0;
#define DBG(fmt, ...) \
@ -2852,5 +2855,41 @@ midgard_compile_shader_nir(nir_shader *nir, midgard_program *program, bool is_bl
if (midgard_debug & MIDGARD_DBG_SHADERS)
disassemble_midgard(program->compiled.data, program->compiled.size);
if (midgard_debug & MIDGARD_DBG_SHADERDB) {
unsigned nr_bundles = 0, nr_ins = 0;
/* Count instructions and bundles */
mir_foreach_instr_global(ctx, ins) {
nr_ins++;
}
mir_foreach_block(ctx, block) {
nr_bundles += util_dynarray_num_elements(
&block->bundles, midgard_bundle);
}
/* Calculate thread count. There are certain cutoffs by
* register count for thread count */
unsigned nr_registers = program->work_register_count;
unsigned nr_threads =
(nr_registers <= 4) ? 4 :
(nr_registers <= 8) ? 2 :
1;
/* Dump stats */
fprintf(stderr, "shader%d - %s shader: "
"%u inst, %u bundles, "
"%u registers, %u threads, 0 loops\n",
SHADER_DB_COUNT++,
gl_shader_stage_name(ctx->stage),
nr_ins, nr_bundles,
nr_registers, nr_threads);
}
return 0;
}