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zink: only flag modules_changed in optimal path if a change has occurred

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this should save some cycles when a recalc is a no-op

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20585>
This commit is contained in:
Mike Blumenkrantz 2023-01-06 09:58:29 -05:00 • committed by Marge Bot
parent b295accf07
commit c6f06901b7
1 changed files with 10 additions and 7 deletions
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17
src/gallium/drivers/zink/zink_program.c
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@ -579,7 +579,7 @@ zink_gfx_program_update(struct zink_context *ctx)
ctx->dirty_gfx_stages = 0;
}
ALWAYS_INLINE static void
ALWAYS_INLINE static bool
update_gfx_shader_module_optimal(struct zink_context *ctx, struct zink_gfx_program *prog, gl_shader_stage pstage)
{
struct zink_screen *screen = zink_screen(ctx->base.screen);
@ -588,7 +588,10 @@ update_gfx_shader_module_optimal(struct zink_context *ctx, struct zink_gfx_progr
struct zink_shader_module *zm = get_shader_module_for_stage_optimal(ctx, screen, prog->shaders[pstage], prog, pstage, &ctx->gfx_pipeline_state);
if (!zm)
zm = create_shader_module_for_stage_optimal(ctx, screen, prog->shaders[pstage], prog, pstage, &ctx->gfx_pipeline_state);
bool changed = prog->modules[pstage] != zm->shader;
prog->modules[pstage] = zm->shader;
return changed;
}
static void
@ -596,17 +599,17 @@ update_gfx_program_optimal(struct zink_context *ctx, struct zink_gfx_program *pr
{
const union zink_shader_key_optimal *optimal_key = (union zink_shader_key_optimal*)&prog->last_variant_hash;
if (ctx->gfx_pipeline_state.shader_keys_optimal.key.vs_bits != optimal_key->vs_bits) {
update_gfx_shader_module_optimal(ctx, prog, ctx->last_vertex_stage->nir->info.stage);
ctx->gfx_pipeline_state.modules_changed = true;
bool changed = update_gfx_shader_module_optimal(ctx, prog, ctx->last_vertex_stage->nir->info.stage);
ctx->gfx_pipeline_state.modules_changed |= changed;
}
if (ctx->gfx_pipeline_state.shader_keys_optimal.key.fs_bits != optimal_key->fs_bits) {
update_gfx_shader_module_optimal(ctx, prog, MESA_SHADER_FRAGMENT);
ctx->gfx_pipeline_state.modules_changed = true;
bool changed = update_gfx_shader_module_optimal(ctx, prog, MESA_SHADER_FRAGMENT);
ctx->gfx_pipeline_state.modules_changed |= changed;
}
if (prog->shaders[MESA_SHADER_TESS_CTRL] && prog->shaders[MESA_SHADER_TESS_CTRL]->non_fs.is_generated &&
ctx->gfx_pipeline_state.shader_keys_optimal.key.tcs_bits != optimal_key->tcs_bits) {
update_gfx_shader_module_optimal(ctx, prog, MESA_SHADER_TESS_CTRL);
ctx->gfx_pipeline_state.modules_changed = true;
bool changed = update_gfx_shader_module_optimal(ctx, prog, MESA_SHADER_TESS_CTRL);
ctx->gfx_pipeline_state.modules_changed |= changed;
}
prog->last_variant_hash = ctx->gfx_pipeline_state.shader_keys_optimal.key.val;
}