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west.yml: update zephyr to sep 01 - #11150

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kv2019i merged 2 commits into
thesofproject:mainfrom
kv2019i:202609-zephyr-sep01
Sep 3, 2026
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west.yml: update zephyr to sep 01 #11150
kv2019i merged 2 commits into
thesofproject:mainfrom
kv2019i:202609-zephyr-sep01

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@kv2019i

@kv2019i kv2019i commented Sep 1, 2026

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Zephyr update plus addition of DTS overlay for Intel multicore targets (to match these definitions getting dropped in Zephyr upstream).

@kv2019i
boards: intel: defer secondary CPU start via devicetree
5499b9e 
CONFIG_SMP_BOOT_DELAY was removed in Zephyr (commit 7a72151634e8
"kernel: smp: replace SMP_BOOT_DELAY with per-CPU devicetree deferral")
in favor of the per-CPU 'zephyr,deferred-start' devicetree property.

SOF relied on CONFIG_SMP_BOOT_DELAY=y (default y if SMP) so that no
secondary DSP core was started at kernel boot; the cores are brought up
on demand by SOF/host power management. Add per-board overlays marking
every secondary core (cpu1..cpuN-1) with 'zephyr,deferred-start' to keep
that behavior. The boot core (cpu0) is unaffected by the property.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
@kv2019i
west.yml: update zephyr to 256e764458c6
d40fcc4 
Total of 333 commits.

Changes include:

1fea2ac094ba Revert "dts: intel_adsp: align boards to new CPU
             deferral config"
0aeeacf75b29 cache API: rework sys_cache_instr/data_line_size_get()
e6140770c595 arch: Kconfig: add range for cache line size
f04b68e2fddb arch: Kconfig: remove I/DCACHE_LINE_SIZE depend on
             !LINE_SIZE_DETECT
22d76caba597 kernel: sched: optimize scheduling IPIs for idle CPU
             wakeups
5a0e1f9eb7fa kernel: add Pugh skip list timeout backend
53cbd898a8aa logging: log_output: fix truncation of 64-bit timestamps
726f7b338c4c logging: output: prevent divide-by-zero in
             log_output_timestamp_to_us
6d8a9a212a98 debug: coredump: adjust logging backend behavior during
             panic
f2c81bd2eaf5 ipc: ipc_service: icbmsg: Fix potential maybe-uninitialized
             warning

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Copilot AI lite review requested due to automatic review settings September 1, 2026 14:14
Copilot AI reviewed Sep 1, 2026
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Pull request overview

Updates the Zephyr revision pinned in this repository’s west.yml manifest and adds application-local DeviceTree overlays for Intel ADSP multi-core boards so secondary DSP cores use deferred start (on-demand) behavior after upstream Zephyr DTS/default changes.

Changes:

  • Bump the Zephyr project revision in west.yml to a newer commit.
  • Add per-board .overlay files under app/boards/ to mark secondary CPU nodes with zephyr,deferred-start for Intel ADSP targets.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

Show a summary per file
File Description
west.yml Updates the pinned Zephyr revision used by west to fetch/build dependencies.
app/boards/intel_adsp_cavs25.overlay Adds deferred-start for secondary CPU cores on cavs25.
app/boards/intel_adsp_cavs25_tgph.overlay Adds deferred-start for secondary CPU core(s) on cavs25_tgph.
app/boards/intel_adsp_ace40_nvls.overlay Adds deferred-start for secondary CPU core(s) on ace40_nvls.
app/boards/intel_adsp_ace40_nvl.overlay Adds deferred-start for secondary CPU core(s) on ace40_nvl.
app/boards/intel_adsp_ace30_wcl.overlay Adds deferred-start for secondary CPU core(s) on ace30_wcl.
app/boards/intel_adsp_ace30_wcl_sim.overlay Adds deferred-start for secondary CPU core(s) on ace30_wcl_sim.
app/boards/intel_adsp_ace30_ptl.overlay Adds deferred-start for secondary CPU core(s) on ace30_ptl.
app/boards/intel_adsp_ace30_ptl_sim.overlay Adds deferred-start for secondary CPU core(s) on ace30_ptl_sim.
app/boards/intel_adsp_ace20_lnl.overlay Adds deferred-start for secondary CPU core(s) on ace20_lnl.
app/boards/intel_adsp_ace15_mtpm.overlay Adds deferred-start for secondary CPU core(s) on ace15_mtpm.

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lgirdwood
lgirdwood approved these changes Sep 1, 2026
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Do we need to cherry-pick for v2.15 ?

@kv2019i

kv2019i commented Sep 1, 2026 •
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@lgirdwood wrote:

Do we need to cherry-pick for v2.15 ?

No, I don't think there's anything we strictly need.

@intel-sofci

intel-sofci commented Sep 1, 2026 •
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PR 11150: test results

Run date: 2026-09-01 15:07 UTC

Tested commit: d40fcc451fe3ab1eb6f016b1ead5b8c5cbf887c7

mtl pass rate lnl pass rate ptl pass rate wcl pass rate nvl pass rate

@kv2019i

kv2019i commented Sep 2, 2026

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Seems fuzzer broke with the Zephyr update. @tmleman any idea what happens here?

@tmleman

tmleman commented Sep 3, 2026

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Seems fuzzer broke with the Zephyr update. @tmleman any idea what happens here?

I found the root cause. Changes were introduced in timer handling in native_sim on the Zephyr side. After the kernel update, IPC teardown causes problems, and if this is disabled the fuzzer will start reporting false positives more frequently.
I already have a draft fix but I want to test it a bit more. I'm not sure whether to paste the code here, or whether it would be better if you update Zephyr to a version that does not cause problems, and I will later open a PR with the fix and the kernel update.

Commits in zephyr:

You need to checkout before zephyrproject-rtos/zephyr@36d4671a7e9.

@kv2019i kv2019i mentioned this pull request Sep 3, 2026
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@kv2019i

kv2019i commented Sep 3, 2026

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Thanks @tmleman for debugging this. I think we can proceed to merge and track the failure in #11162 . I think it's more important to get the DTS overlays added to SOF side, enabling to use newer versions of Zephyr and not get stuck on this.

@kv2019i
kv2019i merged commit 6f485bc into thesofproject:main Sep 3, 2026
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@kv2019i @intel-sofci @tmleman @lyakh @lgirdwood @abonislawski