On Fri, 2024-05-31 at 16:45 +0300, Ilpo Järvinen wrote: > On Tue, 28 May 2024, Tero Kristo wrote: > > > From: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> > > > > Each TPMI power domain includes a group of CPUs. Several power > > management settings in this case applicable to a group of CPUs. > > There can be several power domains in a CPU package. So, provide > > interfaces for: > > - Get power domain id for a Linux CPU > > - Get mask of Linux CPUs in a power domain > > > > Hardware Punit uses different CPU numbering, which is not based on > > APIC (Advanced Programmable Interrupt Controller) CPU numbering. > > The Linux CPU numbering is based on APIC CPU numbering. Some PM > > features > > like Intel Speed Select, the CPU core mask provided by the hardware > > is > > based on the Punit CPU numbering. To use the core mask, this mask > > needs to be converted to a Linux CPUs mask. So, provide interfaces > > for: > > - Convert to a Linux CPU number from a Punit CPU number > > - Convert to a Punit CPU number from a Linux CPU number > > > > On each CPU online, MSR 0x54 is used to read the mapping and stores > > in > > a per cpu array. Create a hash for faster searching of a Linux CPU > > number > > from a Punit CPU number. > > > > Signed-off-by: Srinivas Pandruvada > > <srinivas.pandruvada@xxxxxxxxxxxxxxx> > > [tero.kristo: minor updates] > > Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> > > Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxxxxxxxx> > > --- > > v2: > > * changed to use X86_MATCH_VFM() instead of > > X86_MATCH_INTEL_FAM6_MODEL() > > I've applied this v2 + the other patches from v1 series now to > review-ilpo > branch. > > For the record, I removed "All rights reserved." lines from the > patches > while applying. I asking first (privately) a permission from Tero > whether > it's okay with him I remove those lines. > Thanks Ilpo! -Tero
