tools: testbench: multi-pipeline DAG, multi-core LL/DP pthreads, platform sim, and SOFR remote server by lgirdwood · Pull Request #11356 · thesofproject/sof

lgirdwood · 2026-10-26T15:03:06Z

Summary

This series upgrades sof-testbench4 and the SOF host library (CONFIG_LIBRARY) to support arbitrary multi-pipeline IPC4 DAG topologies, multi-core Low-Latency (LL) and Data Processing (DP) pthread scheduling, hardware platform/workload simulation, an interactive SOFR v2 TCP network server, and the sof-tb-ctl CLI utility, while preserving single-threaded Xtensa simulator (-DTESTBENCH_XTENSA_SIM=ON) compatibility.

Patch Series Overview

schedule: Kconfig: allow PIPELINE_2_0 and DP scheduler on host library builds
- Moves CONFIG_PIPELINE_2_0, CONFIG_ZEPHYR_DP_SCHEDULER, CONFIG_ZEPHYR_DP_SCHEDULER_MIN_STACK_SIZE, and CONFIG_CROSS_CORE_STREAM from zephyr/Kconfig to src/schedule/Kconfig so they can be enabled on both Zephyr ACE firmware targets and host library (CONFIG_LIBRARY) testbench builds.
- Defaults CONFIG_MP_MAX_NUM_CPUS to 8 when CONFIG_LIBRARY is enabled.
audio: library: support shared cross-core buffers, DAI copier stubs, and Google CTC on host
- Adds atomic synchronization for shared cross-core comp_buffer and ring_buffer operations when running on host pthreads (CONFIG_LIBRARY).
- Provides inline no-op stubs in dai_copier.h and excludes hardware dai-legacy.c / copier_dai.c on CONFIG_LIBRARY builds where file copiers handle endpoint I/O.
- Enables CONFIG_COMP_GOOGLE_CTC_AUDIO_PROCESSING on CONFIG_LIBRARY builds.
ipc4: helper: support cross-core streams and runtime core count on host library
- Adds weak host_cpu_* hooks in arch/host/include/arch/lib/cpu.h so host testbench builds can configure core count and track enabled core masks at runtime while standalone unit tests fall back to CONFIG_CORE_COUNT.
- Validates pipeline and module core_id against arch_cpu_num_cores() and enables target cores in ipc4_comp_new_config() and ipc_pipeline_new() under CONFIG_LIBRARY.
platform: library: add multi-core pthread LL/DP schedulers, telemetry, and platform simulation
- Adds per-core pthread LL (ll_schedule_pthread.c) and per-module pthread DP (dp_schedule_pthread.c) schedulers alongside single-threaded ll_schedule.c / dp_schedule.c for Xtensa simulator builds (-DTESTBENCH_XTENSA_SIM=ON).
- Adds lock-free per-core, per-pipeline, and per-module scheduling/buffer telemetry (telemetry_sched.c), CPC-based workload execution time simulation (SRAM vs. DRAM fetch models), and runtime hardware platform presets (tgl, tgl-h, mtl/arl, lnl, ptl, wcl, nvl, nvl-s) enforcing core count, HPSRAM/LPSRAM/DRAM capacity limits (alloc.c, memory.c), and DSP core clock frequencies (clk.c).
tools: tplg_parser: support IPC4 pin bindings, DP domain tokens, and multi-format arrays
- Enhances libsof_tplg_parser to parse IPC4 multi-pin input/output bindings, DP scheduling domain/stack/heap tokens, pipeline priority, and multi-format audio arrays.
- Adds <sound/asound.h> UAPI stub for non-host Xtensa cross-compiler sysroots.
tools: testbench: add multi-pipeline DAG, DP, platform simulation, and remote server
- Enhances sof-testbench4 with multi-pipeline DAG execution, cross-core and DP module setup, pure IPC4 pipeline construction without -t, and CLI flags for platform presets (-A), core count (-N), memory sizes (-m), core frequencies (-F), workload simulation (-w, -M), and interactive server mode (-I, -S, -W).
- Implements the SOFR v2 TCP server (remote_server.c) exposing IPC4 TX/RX, large config TLVs, emulated SRAM windows, winstream shell, composite telemetry snapshots, ALSA/DAPM/Compress/Kcontrol introspection, probe extraction, and live topology/pipeline/platform control.
tools: testbench: add sof-tb-ctl CLI tool and 70-test multi-core/DP topology suite
- Adds the standalone sof-tb-ctl C CLI client (tb_ctl.c) supporting all interactive testbench remote server operations, batch script execution (-f), and interactive REPL mode.
- Adds the 5-tier 70-test verification suite (run_test_suite.sh) covering all 26 built-in audio modules, complex multi-pipeline DAGs, LL+DP combinations, multi-core execution across DSP Cores 0–2, and persistent single-session remote control.

Verification

Host Multi-Core Pthread Build (sof-testbench4 + sof-tb-ctl):
- Built with -Wall -Werror (0 warnings, 0 errors).
- tools/testbench/run_test_suite.sh (single persistent sof-testbench4 -I session, 0 restarts): 70 / 70 passed (Tier 1: 46/46, Tier 2: 7/7, Tier 3: 6/6, Tier 4: 6/6, Tier 5: 5/5).
Single-Threaded Xtensa Simulator Build (-DTESTBENCH_XTENSA_SIM=ON):
- Built with -DTESTBENCH_XTENSA_SIM=ON and verified cross-compilation with xtensa-intel_tgl_adsp_zephyr-elf-gcc (-Wall -Werror, 0 warnings, 0 errors).
- tools/testbench/run_test_suite.sh --per-process across Tiers 1–4: 65 / 65 passed.

…y builds Move CONFIG_PIPELINE_2_0, CONFIG_ZEPHYR_DP_SCHEDULER, CONFIG_ZEPHYR_DP_SCHEDULER_MIN_STACK_SIZE, and CONFIG_CROSS_CORE_STREAM from zephyr/Kconfig to src/schedule/Kconfig so they can be enabled on both Zephyr ACE firmware targets and host library (CONFIG_LIBRARY) testbench builds. Also default CONFIG_MP_MAX_NUM_CPUS to 8 when CONFIG_LIBRARY is enabled and expose the non-Zephyr scheduler_dp_ll_tick() prototype. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Copilot

🟡 Changes recommended

Unresolved concurrency, memory-safety, allocation-accounting, and host-test linkage issues block approval.

11 open issues

What changed in this PR

This PR expands the SOF host library and testbench to support multi-pipeline audio graphs, multi-core LL/DP scheduling, platform simulation, and interactive remote control while retaining single-threaded Xtensa simulator support.

Changes:

Adds graph-aware pipeline setup, multi-pin bindings, and expanded audio-format selection.
Introduces host pthread schedulers, runtime platform configuration, allocation accounting, and telemetry.
Integrates remote-control interfaces, CLI options, and tiered test-suite registration.

File	Description
`zephyr/Kconfig`	Moves shared scheduling options out of Zephyr-only configuration.
`tools/tplg_parser/tokens.c`	Parses string bindings and processing domains.
`tools/tplg_parser/pipeline.c`	Parses IPC4 pipeline priority.
`tools/tplg_parser/include/tplg_parser/topology.h`	Adds graph, pin, and scheduling metadata.
`tools/tplg_parser/include/sound/asound.h`	Adds a minimal ALSA header stub.
`tools/tplg_parser/include/linux/types.h`	Adds UAPI compatibility definitions.
`tools/tplg_parser/CMakeLists.txt`	Adds header fallback and Xtensa compiler options.
`tools/tplg_parser/audio_formats.c`	Parses multi-pin binding names.
`tools/testbench/utils.c`	Integrates remote tick handling and control commands.
`tools/testbench/utils_ipc4.c`	Supports multi-PCM graph setup and cleanup.
`tools/testbench/topology_ipc4.c`	Adds core assignment, queue binding, and format selection.
`tools/testbench/testbench.c`	Adds server/platform options and telemetry reporting.
`tools/testbench/README.md`	Documents architecture, usage, and test tiers.
`tools/testbench/include/testbench/utils.h`	Extends runtime state and helper declarations.
`tools/testbench/include/testbench/topology_ipc4.h`	Defines the copier module identifier.
`tools/testbench/include/testbench/sof_remote_proto.h`	Defines remote protocol messages and operations.
`tools/testbench/include/testbench/remote_server.h`	Declares remote APIs and simulator stubs.
`tools/testbench/include/testbench/file.h`	Adds tone-generation phase state.
`tools/testbench/include/sound/asound.h`	Adds a minimal ALSA header stub.
`tools/testbench/include/linux/types.h`	Adds UAPI compatibility definitions.
`tools/testbench/file.c`	Adds tone generation, fan-out, capture hooks, and restart handling.
`tools/testbench/CMakeLists.txt`	Integrates server/client builds and CTest tiers.
`src/schedule/Kconfig`	Enables shared pipeline and DP options for host builds.
`src/platform/library/schedule/ll_schedule.c`	Adds cooperative multi-core context and telemetry.
`src/platform/library/schedule/ll_schedule_pthread.c`	Adds per-core LL worker threads.
`src/platform/library/schedule/host_schedule.h`	Declares host thread-affinity support.
`src/platform/library/schedule/dp_schedule.c`	Adds cooperative simulator DP scheduling.
`src/platform/library/schedule/dp_schedule_pthread.c`	Adds per-module DP worker threads.
`src/platform/library/schedule/CMakeLists.txt`	Selects pthread or cooperative schedulers.
`src/platform/library/lib/memory.c`	Uses runtime memory sizes and fixes secondary-core heaps.
`src/platform/library/lib/CMakeLists.txt`	Includes scheduler telemetry implementation.
`src/platform/library/lib/clk.c`	Converts time using configured core frequencies.
`src/platform/library/lib/alloc.c`	Adds tracked allocation and capacity enforcement hooks.
`src/platform/library/include/platform/lib/telemetry_sched.h`	Defines telemetry and platform-simulation APIs.
`src/platform/library/include/platform/lib/memory.h`	Sizes system heaps by configured core count.
`src/platform/Kconfig`	Defaults host builds to eight CPUs.
`src/ipc/ipc4/helper.c`	Validates runtime core IDs and enables host cross-core setup.
`src/include/sof/schedule/dp_schedule.h`	Exposes the DP tick hook outside Zephyr.
`src/include/kernel/tokens.h`	Adds processing-domain and resource tokens.
`src/audio/pipeline/pipeline-stream.c`	Instruments pipeline execution.
`src/audio/pipeline/pipeline-schedule.c`	Instruments DP execution and adjusts userspace flags.
`src/audio/google/Kconfig`	Permits Google CTC in host library builds.
`src/audio/google/google_ctc_audio_processing.c`	Corrects blob-size type and formatting.
`src/audio/google/google_ctc_audio_processing_ipc4.c`	Corrects IPC4 configuration-size handling.
`src/audio/copier/dai_copier.h`	Provides host-only DAI stubs.
`src/audio/copier/CMakeLists.txt`	Excludes hardware DAI copier code from host builds.
`src/audio/component.c`	Instruments module copy execution.
`src/audio/CMakeLists.txt`	Excludes legacy hardware DAI code from host builds.
`src/audio/buffers/ring_buffer.c`	Adds atomic host ring-buffer offset access.
`src/audio/buffers/comp_buffer.c`	Adds locking to shared-buffer callbacks.
`src/arch/host/include/arch/lib/cpu.h`	Adds runtime core hooks and external core-ID access.
`src/arch/host/configs/library_defconfig`	Enables eight-core, cross-core, and DP features.
`src/arch/host/CMakeLists.txt`	Adds Xtensa compiler compatibility options.
`posix/include/sof/lib/cpu.h`	Allows host IPC handling without core forwarding.

_{Review effort: Balanced}

lgirdwood · 2026-10-26T18:24:53Z

+		shared_buf_lock(buffer);
 		buffer_stream_writeback(buffer, commit_size);
 		comp_update_buffer_produce(buffer, commit_size);
+		shared_buf_unlock(buffer);


Fixed in d152cdb and bb95a2a: exposed thread-reentrant comp_buffer_shared_lock() / comp_buffer_shared_unlock() helpers and guarded comp_update_buffer_produce(), comp_update_buffer_consume(), module_adapter_audio_stream_copy_1to1(), module_adapter_audio_stream_type_copy(), and file_process().

lgirdwood · 2026-10-26T18:24:55Z

+#if CONFIG_LIBRARY
+		uint64_t telem_start = host_telem_mod_entry(dev, false);


Fixed in 7a9715a: guarded telemetry hooks in component.c, pipeline-stream.c, and pipeline-schedule.c with #if CONFIG_LIBRARY && !defined(UNIT_TEST) and added inline no-op stubs in telemetry_sched.h when UNIT_TEST is defined.

lgirdwood · 2026-10-26T18:24:57Z

+			if (next_control_ns && out_stat) {
 				time_ns = (int64_t)(samples_to_ns * out_stat->n);


Fixed in bb95a2a: removed cached out_stat across ticks in pipline_test() and handle_remote_run_test(), and instead compute tp->last_output_time_ns and tp->has_output_file from tp->fw[0].state while holding g_tb_lock inside tb_schedule_pipeline_check_state().

lgirdwood · 2026-10-26T18:25:00Z

+			tb_remote_server_stop();
+
+		if (tp->tplg_file) {
+			err = tb_set_reset_state(tp);


Fixed in bb95a2a: moved test_pipeline_stats() (in testbench.c) and format_remote_test_summary() (in remote_server.c) before tb_set_reset_state(tp) so end-of-run sample, copy, and cycle counts are reported before file_reset() clears them.

lgirdwood · 2026-10-26T18:25:02Z

+			tp->frame_fmt = tplg_find_format(tp->bits_in);
+		}
+		if (!tp->input_file_num) {
+			FILE *sfp = fopen("/tmp/sof_tb_srv_in.raw", "wb");


Fixed in bb95a2a: server mode now creates a private per-instance directory via mkdtemp("/tmp/sof-tb-XXXXXX") (tp->server_tmp_dir) for default input/output/LLEXT files and cleans up the files and directory on exit.

lgirdwood · 2026-10-26T18:25:08Z

+	tb_remote_tick_end(tp, cycles1 - cycles0, delta_ns);

 	/* Check if all file components are running */
-	return tb_is_file_component_at_eof(tp);
+	return !tb_remote_should_continue(tp, tb_is_file_component_at_eof(tp));


Fixed in bb95a2a: tb_schedule_pipeline_check_state() now evaluates tb_is_file_component_at_eof(tp) before tb_remote_tick_end() releases g_tb_lock.

lgirdwood · 2026-10-26T18:25:11Z

+	if (host_platform_account_alloc && !host_platform_account_alloc(flags, actual)) {
+		free(ptr);
+		return NULL;
+	}


Fixed in bb95a2a: replaced plain free() calls on rzalloc()-allocated ccd, cd, and dd structures in tools/testbench/file.c with rfree().

lgirdwood · 2026-10-26T18:25:14Z

+	if (host_platform_account_free)
+		host_platform_account_free(malloc_usable_size(ptr));


Fixed in 7a9715a: host_platform_account_alloc() and host_platform_account_free() now record each tracked allocation's pointer, byte size, and charged pool (HPSRAM, LPSRAM, or DRAM) so freeing an allocation decrements the exact pool that was charged.

lgirdwood · 2026-10-26T18:25:16Z

+				host_telem_core_dp_run(task->core, core_dp_cnt,
+						       (t1 > t0) ? (t1 - t0) : 1);
+				pthread_mutex_lock(&dp_sch->lock);


Fixed in 7a9715a: protected host_telem_core_dp_run(), host_telem_core_ll_tick(), host_telem_pipe_begin(), host_telem_pipe_end(), and _sim_dp_run_cycles / _sim_ll_tick_cycles updates in host_telem_mod_exit() with TELEM_LOCK() / TELEM_UNLOCK().

lgirdwood · 2026-10-26T18:25:18Z

+	add_test(NAME testbench_tier5_controls_remote
+		 COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/run_test_suite.sh --tier 5)


Fixed in bb95a2a: updated all add_test() entries in tools/testbench/CMakeLists.txt to pass TB_BIN=$<TARGET_FILE:${testbench}> and TB_CTL_BIN=$<TARGET_FILE:sof-tb-ctl> via ${CMAKE_COMMAND} -E env.

…and Google CTC on host Update audio buffers and modules for multi-core and multi-threaded host library execution: - Add atomic synchronization for shared cross-core comp_buffer and ring_buffer operations when running on host pthreads (CONFIG_LIBRARY). - Provide inline no-op stubs in dai_copier.h and exclude hardware dai-legacy.c / copier_dai.c on CONFIG_LIBRARY builds where file copiers handle endpoint I/O. - Allow CONFIG_COMP_GOOGLE_CTC_AUDIO_PROCESSING on CONFIG_LIBRARY builds and fix comp_get_data_blob() size_t argument types. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

…st library Support cross-core pipeline/module creation and runtime-configurable DSP core counts on host library (CONFIG_LIBRARY) builds: - Add weak host_cpu_* hooks in arch/host/include/arch/lib/cpu.h so host testbench builds can configure core count and track enabled core masks at runtime while standalone unit tests fall back to CONFIG_CORE_COUNT. - Validate pipeline and module core_id against arch_cpu_num_cores() and enable target cores in ipc4_comp_new_config() and ipc_pipeline_new() under CONFIG_LIBRARY. - Allow primary-core IPC thread to allocate shared cross-core buffers and provide host library ll_block/ll_unblock definitions. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

…, and platform simulation Add multi-core LL and preemptive DP pthread schedulers, per-core/pipe/module scheduling and buffer telemetry, CPC workload execution time simulation, and hardware platform preset / memory / clock accounting to the host library platform: - Implement per-core LL worker pthreads (ll_schedule_pthread.c) and per-module preemptive DP pthreads (dp_schedule_pthread.c), alongside single-threaded Xtensa simulator fallbacks (ll_schedule.c, dp_schedule.c). - Implement scheduling and entry/exit pin buffer telemetry, CPC/SRAM/DRAM workload simulation, and Intel DSP platform presets (tgl, tgl-h, mtl/arl, lnl, ptl, wcl, nvl, nvl-s, default) in telemetry_sched.c. - Track live/peak heap allocations and enforce HPSRAM/LPSRAM/DRAM capacity limits in alloc.c and memory.c, and compute clock_*_to_ticks() from the active core frequency in clk.c. - Enable 8-core, PIPELINE_2_0, ZEPHYR_DP_SCHEDULER, and CROSS_CORE_STREAM in library_defconfig. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

…multi-format arrays Enhance libsof_tplg_parser to parse IPC4 multi-pin bindings, Data Processing (DP) scheduling domain/stack/heap tokens, pipeline priority, and multi-format audio arrays: - Define SOF_TKN_COMP_NO_WNAME_IN_KCONTROL_NAME, SOF_TKN_COMP_SCHED_DOMAIN, SOF_TKN_COMP_DOMAIN_ID, SOF_TKN_COMP_STACK_BYTES, and SOF_TKN_COMP_HEAP_BYTES in src/include/kernel/tokens.h. - Parse input/output pin binding arrays and multiple input/output audio formats in tools/tplg_parser/audio_formats.c. - Parse SOF_TKN_SCHED_PRIORITY in tools/tplg_parser/pipeline.c and add string and processing domain token helpers in tools/tplg_parser/tokens.c. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

…d remote server Enhance sof-testbench4 with multi-pipeline DAG execution, cross-core and DP pipeline setup, hardware platform/workload simulation flags, and an interactive SOFR v2 TCP network server: - Support arbitrary multi-pipeline DAGs, multi-pin module bindings, DP module initialization, and pure IPC4 pipeline construction without -t. - Add CLI flags for platform presets (-A <platform|list>), core count (-N <cores>), memory capacities (-m <hpsram[,lpsram[,dram]]>), fractional MHz/kHz/Hz core frequencies (-F), workload simulation (-w, -M), and interactive server mode (-I, -S <port>, -W). - Implement the SOFR v2 TCP server (remote_server.c) exposing IPC4 TX/RX, large config TLVs, emulated SRAM windows, winstream shell, composite telemetry snapshots, ALSA/DAPM/Compress/Kcontrol introspection, probe extraction, and live topology/pipeline/platform control. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

…opology suite Add the standalone sof-tb-ctl TCP client utility supporting all interactive testbench remote server commands (topology load, core count, memory limits, clock frequencies, platform presets, PCM file bindings, batch run, single-step ticks, kcontrol get/set, pipeline graph queries, and per-core telemetry). Also add the 5-tier 70-test verification suite (run_test_suite.sh) covering single-pipeline modules, complex DAGs, LL+DP scheduling, multi-core affinity, and persistent single-session sof-tb-ctl remote verification. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

singalsu · 2026-10-27T12:35:53Z

The x86 build works well. But I get with xt-clang build of testbench (for MTL) this:

In file included from /home/singalsu/work/current/sof/sof/src/platform/library/lib/telemetry_sched.c:25:
/home/singalsu/xtensa/XtDevTools/install/builds/RI-2022.10-linux/ace10_LX7HiFi4_2022_10/xtensa-elf/include/strings.h:24:14: error: expected parameter declarator
void     _EXFUN(bzero,(void *, size_t));
                ^
/home/singalsu/xtensa/XtDevTools/install/builds/RI-2022.10-linux/ace10_LX7HiFi4_2022_10/xtensa-elf/include/strings.h:24:14: error: expected ')'
/home/singalsu/xtensa/XtDevTools/install/builds/RI-2022.10-linux/ace10_LX7HiFi4_2022_10/xtensa-elf/include/strings.h:24:14: note: to match this '('
/home/singalsu/xtensa/XtDevTools/install/builds/RI-2022.10-linux/ace10_LX7HiFi4_2022_10/xtensa-elf/include/strings.h:24:14: error: conflicting types for 'memset'
void     _EXFUN(bzero,(void *, size_t));
                ^
/home/singalsu/work/current/sof/sof/src/arch/host/include/arch/string.h:24:7: note: previous declaration is here
void *memset(void *dest, int data, size_t count);
      ^

lgirdwood requested a balanced review from Copilot October 26, 2026 15:07

Copilot started reviewing on behalf of lgirdwood October 26, 2026 15:22

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lgirdwood force-pushed the topic/testbench-upstream branch from 98c98d9 to bb69d57 Compare October 26, 2026 17:25

lrgirdwo added 6 commits October 26, 2026 18:24

lgirdwood force-pushed the topic/testbench-upstream branch from bb69d57 to f71e750 Compare October 26, 2026 18:24

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tools: testbench: multi-pipeline DAG, multi-core LL/DP pthreads, platform sim, and SOFR remote server - #11356

tools: testbench: multi-pipeline DAG, multi-core LL/DP pthreads, platform sim, and SOFR remote server#11356
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		#if CONFIG_LIBRARY
		uint64_t telem_start = host_telem_mod_entry(dev, false);

		if (next_control_ns && out_stat) {
		time_ns = (int64_t)(samples_to_ns * out_stat->n);

		if (host_platform_account_free)
		host_platform_account_free(malloc_usable_size(ptr));

		add_test(NAME testbench_tier5_controls_remote
		COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/run_test_suite.sh --tier 5)

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singalsu commented Oct 27, 2026

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