panfrost/midgard: Dump shader-db stats
All the kool kids are doing it.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
diff --git a/src/gallium/drivers/panfrost/midgard/midgard_compile.c b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
index 9c86f19..43f451c 100644
--- a/src/gallium/drivers/panfrost/midgard/midgard_compile.c
+++ b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
@@ -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 @@
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;
}