Add IFS support for ClearWater Forest #67
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commit 090e3be upstream. Server product based on the Atom Darkmont core. Intel-SIG: commit 090e3be x86/cpu: Add model number for Intel Clearwater Forest processor. BACKPORTING NEW CPU IFM Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Borislav Petkov (AMD) <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Quanxian Wang: amend commit log ] Signed-off-by: Quanxian Wang <[email protected]>
commit 8a8a9c9 upstream. This one is the regular laptop CPU. Intel-SIG: commit 8a8a9c9 x86/cpu: Add model number for another Intel Arrow Lake mobile processor. BACKPORTING NEW CPU IFM Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Quanxian Wang: amend commit log ] Signed-off-by: Quanxian Wang <[email protected]>
commit a9d0adc upstream. Refactor struct cpuinfo_x86 so that the vendor, family, and model fields are overlaid in a union with a 32-bit field that combines all three (together with a one byte reserved field in the upper byte). This will make it easy, cheap, and reliable to check all three values at once. See https://lore.kernel.org/r/Zgr6kT8oULbnmEXx@agluck-desk3 for why the ordering is (low-to-high bits): (vendor, family, model) [ bp: Move comments over the line, add the backstory about the particular order of the fields. ] Intel-SIG: commit a9d0adc x86/cpu/vfm: Add/initialize x86_vfm field to struct cpuinfo_x86. BACKPORTING NEW CPU IFM Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Borislav Petkov (AMD) <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Quanxian Wang: amend commit log ] Signed-off-by: Quanxian Wang <[email protected]>
commit f055b62 upstream. New CPU #defines encode vendor and family as well as model. Update the example usage comment in arch/x86/kernel/cpu/match.c Intel-SIG: commit f055b62 x86/cpu/vfm: Update arch/x86/include/asm/intel-family.h. BACKPORTING NEW CPU IFM Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Borislav Petkov (AMD) <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Quanxian Wang: amend commit log ] Signed-off-by: Quanxian Wang <[email protected]>
commit 6c0a473fc5f89dabbed0af605a09370b533aa856 upstream. Add Clearwater Forest (INTEL_ATOM_DARKMONT_X) to the x86 match table of Intel In Field Scan (IFS) driver, enabling IFS functionality on this processor. Intel-SIG: commit 6c0a473fc5f8 platform/x86/intel/ifs: Add Clearwater Forest to CPU support list Add IFS support for ClearWater Forest Signed-off-by: Jithu Joseph <[email protected]> Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Ilpo Järvinen <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> [ Zhang Rui: resolve conflict (use old X86 Macro) and amend commit log ] Signed-off-by: Zhang Rui <[email protected]>
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Nov 10, 2025
…cwf' into intel-6.6-velinux Add IFS support for ClearWater Forest Note: this PR also includes all the patches in openvelinux#60, because it depends on the CWF CPUID support in that PR. Tests: Tested on CWF, the IFS feature works as expected.
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Add IFS support for ClearWater Forest
Note: this PR also includes all the patches in #60, because it depends on the CWF CPUID support in that PR.
Tests:
Tested on CWF, the IFS feature works as expected.