Hi! This is the follow up to V1: https://lore.kernel.org/lkml/20230724155329.474037902@xxxxxxxxxxxxx which addresses the review feedback and some minor fallout I observed in my testing of the work based on top. TLDR: This reworks the way how topology information is evaluated via CPUID in preparation for a larger topology management overhaul to address shortcomings of the current code vs. hybrid systems and systems which make use of the extended topology domains in leaf 0x1f. Aside of that it's an overdue spring cleaning to get rid of accumulated layers of duct tape and haywire. What changed vs. V1: - Fixed an issue vs. the logical die/pkg management as the current code (ab)uses cpuinfo for persistant storage. - Consolidated APIC ID usage on u32 and ditched the u16 limitation - Addressed the review feedback from Peter and Arjan - Added a new patch which gets rid of XENPV fiddling in the cpuinfo state. That needs some testing on XENPV obviously. The relevant patches are #22 and #37 I did not pick up any of the tested by tags yet. I hope people can run it once more. Neither did I add the Ack from Peter. The series is based on the APIC cleanup series: https://lore.kernel.org/lkml/20230724131206.500814398@xxxxxxxxxxxxx and also available on top of that from git: git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git topo-cpuid-v2 Thanks, tglx --- Documentation/arch/x86/topology.rst | 12 - a/arch/x86/kernel/cpu/topology.c | 168 --------------------- arch/x86/events/amd/core.c | 2 arch/x86/events/amd/uncore.c | 2 arch/x86/events/intel/uncore.c | 2 arch/x86/hyperv/hv_vtl.c | 2 arch/x86/include/asm/apic.h | 32 +--- arch/x86/include/asm/cacheinfo.h | 3 arch/x86/include/asm/cpuid.h | 32 ++++ arch/x86/include/asm/mpspec.h | 2 arch/x86/include/asm/processor.h | 60 +++++-- arch/x86/include/asm/smp.h | 4 arch/x86/include/asm/topology.h | 51 +++++- arch/x86/include/asm/x86_init.h | 2 arch/x86/kernel/acpi/boot.c | 4 arch/x86/kernel/amd_nb.c | 8 - arch/x86/kernel/apic/apic.c | 14 - arch/x86/kernel/apic/apic_common.c | 4 arch/x86/kernel/apic/apic_flat_64.c | 13 - arch/x86/kernel/apic/apic_noop.c | 9 - arch/x86/kernel/apic/apic_numachip.c | 21 -- arch/x86/kernel/apic/bigsmp_32.c | 10 - arch/x86/kernel/apic/local.h | 6 arch/x86/kernel/apic/probe_32.c | 10 - arch/x86/kernel/apic/x2apic_cluster.c | 1 arch/x86/kernel/apic/x2apic_phys.c | 10 - arch/x86/kernel/apic/x2apic_uv_x.c | 67 +------- arch/x86/kernel/cpu/Makefile | 5 arch/x86/kernel/cpu/amd.c | 156 -------------------- arch/x86/kernel/cpu/cacheinfo.c | 51 ++---- arch/x86/kernel/cpu/centaur.c | 4 arch/x86/kernel/cpu/common.c | 111 +------------- arch/x86/kernel/cpu/cpu.h | 14 + arch/x86/kernel/cpu/hygon.c | 133 ----------------- arch/x86/kernel/cpu/intel.c | 38 ---- arch/x86/kernel/cpu/mce/amd.c | 4 arch/x86/kernel/cpu/mce/apei.c | 4 arch/x86/kernel/cpu/mce/core.c | 4 arch/x86/kernel/cpu/mce/inject.c | 7 arch/x86/kernel/cpu/proc.c | 8 - arch/x86/kernel/cpu/zhaoxin.c | 18 -- arch/x86/kernel/kvm.c | 6 arch/x86/kernel/sev.c | 2 arch/x86/kernel/smpboot.c | 97 +++++++----- arch/x86/kernel/vsmp_64.c | 13 - arch/x86/mm/amdtopology.c | 35 ++-- arch/x86/mm/numa.c | 4 arch/x86/xen/apic.c | 14 - arch/x86/xen/smp_pv.c | 3 b/arch/x86/kernel/cpu/debugfs.c | 97 ++++++++++++ b/arch/x86/kernel/cpu/topology.h | 51 ++++++ b/arch/x86/kernel/cpu/topology_amd.c | 179 +++++++++++++++++++++++ b/arch/x86/kernel/cpu/topology_common.c | 233 ++++++++++++++++++++++++++++++ b/arch/x86/kernel/cpu/topology_ext.c | 136 +++++++++++++++++ drivers/edac/amd64_edac.c | 4 drivers/edac/mce_amd.c | 4 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 drivers/hwmon/fam15h_power.c | 7 drivers/scsi/lpfc/lpfc_init.c | 8 - drivers/virt/acrn/hsm.c | 2 60 files changed, 1049 insertions(+), 956 deletions(-)
