Tenstorrent Atlantis SoC clock and reset controller
Provides clock and reset control for the RCPU subsystem on Tenstorrent's Atlantis system-on-chip, the management/RISC-V control complex that sits alongside the company's AI accelerator silicon. It is the low-level plumbing the rest of the kernel uses to bring up and gate clocks on Atlantis-based hardware.
recommendation
It should stay because this is a brand-new addition to the kernel, not legacy code. A v8 patch series adding the Atlantis PRCM driver was posted in March 2026 and pulled into the clk tree for v7.1, so it represents active upstream work for current Tenstorrent silicon rather than something on the way out. Confidence is moderate only because Atlantis itself was not yet visibly on sale in 2025; the publicly shipping Tenstorrent products at the time were the Wormhole and Blackhole accelerators.
repository signals
sources
- spinics.net
March 2026 patch v8 adds `drivers/clk/tenstorrent/atlantis-prcm.c` as the Tenstorrent Atlantis clock controller driver for the Atlantis SoC RCPU subsystem.
- lists.infradead.org
March 16, 2026 clk pull request targets v7.1 and explicitly includes the Tenstorrent Atlantis PRCM clk/reset support, indicating active upstream integration rather than deprecation/removal.
- future.tenstorrent.com
Tenstorrent was launching new Blackhole developer products in 2026, showing the vendor and adjacent accelerator platforms are current, but this does not demonstrate Atlantis hardware was publicly sold in 2025.
codex reasoning notes (technical)
Local shell (`rg --files drivers/clk` and `git -c safe.directory=... log --all -- drivers/clk/tenstorrent`) found no directory/history in this snapshot, so I treated the static '0 commits' signal as inconclusive for a brand-new path. Web search located the Atlantis clk patch series on spinics and a clk-tree git-pull on lists.infradead, both from 2026, which is strong evidence of active upstream addition and no removal discussion. The chipset family name 'Atlantis' comes from the patch subject/body. I found current Tenstorrent product-sale evidence only for Wormhole/Blackhole-era products, not public Atlantis sales in 2025, so sales/deployment fields are conservative and there is no natural replacement driver for the same SoC clock block.