Re: [PATCH] powerpc/dt_cpu_ftrs: Set CPU_FTR_P11_PVR for Power11 and later processors
Madhavan Srinivasan <[email protected]>
| Newsgroups | gmane.linux.ports.ppc.embedded |
|---|---|
| Message-ID | <178462153941.1974055.9212884139202871921.b4-ty__16535.5885912263$1784623157$gmane$org@linux.ibm.com> |
On Sun, 14 Jun 2026 23:04:37 +0530, Amit Machhiwal wrote:
> When using device tree CPU features (dt-cpu-ftrs), the kernel bypasses
> the traditional cputable-based CPU identification and instead derives
> CPU features from the device tree's "ibm,powerpc-cpu-features" node
> provided by firmware.
>
> However, CPU_FTR_P11_PVR is a kernel-internal feature flag used to
> identify Power11 and later processors, and is not represented in the
> device tree's ISA feature set. While ISA v3.1 support (indicated by
> CPU_FTR_ARCH_31) is present on both Power10 and Power11, the
> CPU_FTR_P11_PVR flag is specifically needed by code that must
> distinguish between Power10 and Power11 processors.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/dt_cpu_ftrs: Set CPU_FTR_P11_PVR for Power11 and later processors
https://git.kernel.org/powerpc/c/e4de1b9cb3b5c981e4fe9bca253a7fb9161f5acd
cheers