linux-drivers/
drivers/platform/x86/intel

Intel x86 platform feature drivers (PMC, PMT, TPMI, VSEC, ISST, SDSi)

A collection of Intel-specific platform glue for x86 systems that exposes power, telemetry, and tunable-feature interfaces on modern Intel CPUs and chipsets. It covers the Power Management Controller, Platform Monitoring Technology, TPMI, VSEC, Speed Select on Xeon, and Software Defined Silicon (Intel On Demand), alongside some older Bay Trail and Cherry Trail bits.

keep conf=0.92 last_sold=2026 deploy=high replacement=none subsystem=platform category=platform-vendor
92%

recommendation

It should stay because it actively enables current Intel client and Xeon platforms, including features still being launched in 2024-2026 such as Intel On Demand on 4th and 5th Gen Xeon Scalable and the PMT specification revised in March 2026. Upstream activity is healthy, with over 200 substantive commits in the last five years from more than 50 contributors and changes landing as recently as March 2026, and there is no sign of removal discussion on the kernel mailing lists.

repository signals

101 files
29,269 source lines
658 commits, 5y
+37,735 / −7,778 lines added / removed, 5y
112 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 658 total · active in 58/61 months
2021 2022 2023 2024 2025 2026 2021-04: 0 commits · +0 −0 2021-05: 0 commits · +0 −0 2021-06: 3 commits · +1,708 −2 2021-07: 2 commits · +1,337 −0 2021-08: 29 commits · +10,822 −41 2021-09: 2 commits · +740 −5 2021-10: 4 commits · +24 −22 2021-11: 1 commit · +8 −11 2021-12: 14 commits · +1,075 −238 2022-01: 4 commits · +95 −60 2022-02: 9 commits · +1,314 −733 2022-03: 1 commit · +2 −2 2022-04: 7 commits · +36 −17 2022-05: 12 commits · +1,003 −9 2022-06: 10 commits · +323 −53 2022-07: 3 commits · +5 −148 2022-08: 4 commits · +9 −11 2022-09: 10 commits · +141 −61 2022-10: 2 commits · +4 −4 2022-11: 29 commits · +1,636 −1,205 2022-12: 5 commits · +4 −13 2023-01: 7 commits · +205 −102 2023-02: 16 commits · +510 −25 2023-03: 40 commits · +2,091 −192 2023-04: 9 commits · +561 −44 2023-05: 4 commits · +113 −28 2023-06: 22 commits · +1,708 −425 2023-07: 5 commits · +408 −20 2023-08: 5 commits · +8 −7 2023-09: 3 commits · +62 −31 2023-10: 22 commits · +427 −160 2023-11: 23 commits · +947 −217 2023-12: 25 commits · +1,657 −123 2024-01: 8 commits · +126 −102 2024-02: 9 commits · +15 −47 2024-03: 7 commits · +52 −27 2024-04: 26 commits · +809 −363 2024-05: 15 commits · +770 −104 2024-06: 19 commits · +296 −255 2024-07: 9 commits · +78 −169 2024-08: 14 commits · +686 −54 2024-09: 4 commits · +60 −3 2024-10: 11 commits · +111 −143 2024-11: 5 commits · +16 −13 2024-12: 16 commits · +183 −117 2025-01: 5 commits · +12 −7 2025-02: 15 commits · +1,088 −581 2025-03: 1 commit · +1 −1 2025-04: 32 commits · +705 −543 2025-05: 18 commits · +413 −214 2025-06: 9 commits · +21 −413 2025-07: 32 commits · +1,962 −195 2025-08: 7 commits · +510 −10 2025-09: 8 commits · +298 −45 2025-10: 8 commits · +102 −98 2025-11: 9 commits · +163 −16 2025-12: 10 commits · +21 −84 2026-01: 13 commits · +160 −110 2026-02: 10 commits · +79 −51 2026-03: 6 commits · +15 −4 2026-04: 0 commits · +0 −0

sources

  1. intel.com

    Intel PMT remained an actively published Intel architecture in 2026, with a public PMT technical specification dated 2026-03-10 describing use across Intel products including CPU and PCH.

  2. intel.com

    Intel Speed Select Technology was still supported on 4th and 5th Gen Intel Xeon Scalable processors as of the article last reviewed on 2025-07-02.

  3. download.intel.com

    Intel On Demand (the kernel's SDSi user-facing feature area) was introduced with 4th Gen Xeon Scalable processors, tying part of this directory to recent server platforms rather than legacy-only hardware.

  4. cateee.net

    CONFIG_INTEL_PMC_CORE is defined in drivers/platform/x86/intel/pmc/Kconfig and remains present through current kernel series listed by LKDDb, indicating continuing upstream support.

  5. cateee.net

    CONFIG_INTEL_TPMI is defined in drivers/platform/x86/intel/Kconfig and is present in Linux 6.3 through 6.19 and 7.0-rc+HEAD per LKDDb, showing this directory contains newly added/current platform enablement.

codex reasoning notes (technical)

Keep. This directory is a mixed Intel platform bucket: some legacy Bay Trail/Cherry Trail/Oaktrail pieces exist, but recent files and Kconfig entries show substantial current-platform coverage (PMC, PMT, TPMI, VSEC, ISST, SDSi). Upstream activity is plainly live from the provided static history: 206 substantive commits in 5y, 55 authors, most recent substantive touch 2026-03-23. I attempted lore-first checks via web searches against lore.kernel.org for remove/deprecate traffic, but found no removal discussion URLs; combined with the strong recent activity, that argues against deprecation. URLs were obtained by web search/open for Intel and LKDDb pages; local shell reads of Kconfig confirmed the directory composition. No single replacement driver exists because this directory aggregates multiple Intel platform feature drivers rather than one obsolete function.