LL userspace ipc_msg_send() and send_resource_notif() syscalls and related changes#10725

Draft

jsarha wants to merge 112 commits intothesofproject:mainfrom

jsarha:ll_userspace_ipc_msg_send

Commits on Apr 22, 2026

(---section submitted PRs START)
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(---section submitted PRs STOP)
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(---section: user LL infra START)
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ipc: move standalone-test check later in ipc_init()
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audio: component: add comp_grant_access_to_thread()
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pipeline: protect component connections with a mutex
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audio: component: replace k_mutex with sys_mutex for list_mutex
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rtos: alloc.h: add sof_sys_user_heap_get()
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zephyr: rtos: userspace_helper.h: add sysuser memory partition
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zephyr: lib: make sof_heap_alloc/free system calls
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schedule: zephyr_ll_user: make the heap accessible from user-space
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schedule: zephyr_ll: convert pdata->sem into a dynamic object
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schedule: zephyr_ll: replace dynamic k_sem with embedded sys_sem
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schedule: zephyr_ll_user: move user accessible heap to common partition
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dma: dma_sg: allocate on specific heap
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buffer: extend ability to allocate on specific heap to all functions
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app: overlays: ptl: add ll_usespace_overlay.conf
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(---section: user LL infra STOP)
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(---section host-zephyr START)
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zephyr: userspace: sof_dma: allow circular SG lists
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zephyr: lib: dma: make DMA platform data available to user-space
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audio: host-zephyr: select heap when allocating host buffers
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audio: host-zephyr: rework calls to DMA driver, remove channel pointer
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audio: host-zephyr: pass component heap to dma_sg_alloc
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alloc.h: remove rbrelloac() and rbrealloc_align()
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audio: host-zephyr: ensure host data heap is set
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audio: host-zephyr: make component usable from user-space
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(---section host-zephyr STOP)
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(---section dai-zephyr START)
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audio: pcm_converter: make global tables available to user-space
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audio: buffer: replace notifier events with direct probe callbacks
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audio: dai-zephyr: make memory allocations user-space compatible
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lib: dai: make dai_get() and dai_put() compatible with user-space
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audio: dai-zephyr: rework calls to DMA driver, remove channel pointer
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audio: dai-zephyr: convert spinlock into mutex for properties
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audio: dai-zephyr: migrate to use dai_get_properties_copy()
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dai: zephyr: replace k_mutex with sys_mutex for DAI lock
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(---section dai-zephyr STOP)
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(---section audio module infra START)
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audio: module_adapter: alloc from LL user heap if LL run in user
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audio: copier: export copier endpoint ops to user-space
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(---section schduler changes START)
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schedule: zephyr_ll: add zephyr_ll_task_free()
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schedule: zephyr_ll: add zephyr_ll_grant_access()
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schedule: zephyr_ll_user: make double-mapping conditional
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schedule: allocate the scheduler objects with sof_heap_alloc
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WIP: schedule: limit user-LL to core0
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zephyr: schedule: allow user-space to access scheduler list
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zephyr: wrapper: modify platform_dai_wallclock() for user-space
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schedule: add scheduler_init_context() and scheduler_free_context()
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schedule: zephyr_ll: implement scheduler_init_context()
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schedule: ll_schedule_domain: add domain_thread_init/free ops
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schedule: zephyr_ll: implement thread_init/free domain ops
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schedule: zephyr_ll: ISR check is not needed when LL in user-space
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zephyr: userspace_helper: add new sys_user_heap_init()
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(---section schduler changes END)
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(---section audio-user PRs START)
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schedule: zephyr_domain: use a different thread name for user LL
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WIP: audio: module_adapter: use correct heap when freeing
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coherent: disable core debug checks for user-space builds
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audio: place component driver list in user-space accessible partition
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audio: module_adapter: make adapter buffering user-space compatible
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audio: pipeline: use LL scheduler mutex for userspace pipeline triggers
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schedule: zephyr_ll: replace k_mutex with sys_mutex for scheduler lock
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audio: buffer: move dp_heap_user lifecycle to IPC and module adapter
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audio: host-zepher: add HOST_DMA_IPC_POSITION_UPDATES Kconfig
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audio: copier_host: make FPI sync group availble to user-space
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audio: copier: avoid IRQ lock/unlock in chmap code
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audio: module_adapter: avoid IRQ lock/unlock in prepare()
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audio: module_adapter: make data_blob compatible with user-space
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audio: module-adapter: make generic.c user-space compatible
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audio: make comp_drivers_get() accessible from user-space
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dai: turn dai_get_device() into a syscall
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audio: chain_dma: add user-space memory and scheduling support
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(---section audio user PRs STOP)
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(---section: IPC user support START)
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userspace: split ipc files into user and kernel features. REVISIT memcpy
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ipc4: helper: use LL scheduler lock for userspace builds
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WIP: ipc: implement user-space IPC handling for CREATE_PIPELINE
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WIP: ipc: ipc4: route PIPELINE_DELETE to user-space handler
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ipc: make IPC stack thread size configurable

Jyri Sarha
authored and
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ipc: ipc4: use sof_heap_alloc in ipc4_add_comp_dev()
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ipc: turn ipc_msg_reply() into a system call
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ipc: ipc4: use correct API to get DMA status
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ipc: ipc4: dai: fix direct use of DMA driver calls
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ipc: use application heap for IPC pipeline and component allocations
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ipc4: make fw_reg mutex available to user-space
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ipc: ipc4: helper: make ipc4_search_for_drv() userspace compatible
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WIP: schedule: add multi-core support for user-space LL scheduler
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ipc: ipc-helper: trace context not used in user-space
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ipc: ipc4: use the core number from IPC config
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ipc: ipc4: helper: enable limited ipc_comp_connect() in user-space
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WIP: ipc: ipc4: route MOD_CONFIG_GET/SET to user-space handler
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WIP: ipc: ipc4: route MOD_BIND/UNBIND to user-space handler
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WIP: ipc: ipc4: route MOD_INIT_INSTANCE to user-space handler
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WIP: ipc: ipc4: route GLB_SET_PIPELINE_STATE to user-space handler
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WIP: ipc: ipc4: route MOD_LARGE_CONFIG_GET/SET user-space
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(---section: IPC user support STOP)
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(---section test-case START)
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zephyr: test: userspace: add pipeline_two_components test
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zephyr: test: userspace: add ipc4_create_pipeline_check
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(---section WIP mandatory changes START)
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audio: pipeline: enable position reporting for user-space pipelines
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WIP: ipc: expose coldrodata to IPC user thread
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HACK: audio: collection of feature limitations to run LL in user
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[DO NOT MERGE] zephyr.yml: use Zephyr PR107341
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Commits on Apr 28, 2026

ipc: turn ipc_msg_send() into a system call if SOF_USERSPACE_LL=y
Jyri Sarha
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ipc: make IPC message allocation userspace-safe
Jyri Sarha
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ipc4: notification: make send_resource_notif() a syscall
Jyri Sarha
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src/audio/selector/selector_generic.c: HACK notitfy test, no payload
Jyri Sarha
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src/audio/selector/selector_generic.c: HACK notify test, with payload
Jyri Sarha
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src/audio/host-zephyr.c: HACK test, force out XRUN resource notif every 1000 frames
Jyri Sarha
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