[patch V4 00/41] x86/cpu: Rework the topology evaluation

Thomas Gleixner
2023-08-14T08:54:11Z

Hi!

This is the follow up to V3:

https://lore.kernel.org/lkml/20230802101635.459108805@linutronix.de

which addresses the review feedback.

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. V3:

- Added the Hygon fix from Pu Wen and adjusted the new code accordingly

- Fixed the off by one in the AMD parser for real - Michael

- Reworked the unknown domain type handling in the 0xb/01f parser - Rui

- Made core ID package relative - Rui

- Folded the missing u32 conversions - Qiuxu

- Folded the fake_topology() fixup from the full topology series

- Small cleanups and enhancements

- Picked up Tested-by tags

The series is based on the the APIC cleanup series in tip:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/apic

and also available on top of that from git:

git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git topo-cpuid-v4

Thanks,

tglx
---
arch/x86/kernel/cpu/topology.c | 168 -------------------
b/Documentation/arch/x86/topology.rst | 12 -
b/arch/x86/events/amd/core.c | 2
b/arch/x86/events/amd/uncore.c | 2
b/arch/x86/events/intel/uncore.c | 2
b/arch/x86/hyperv/hv_vtl.c | 2
b/arch/x86/include/asm/apic.h | 38 +---
b/arch/x86/include/asm/cacheinfo.h | 3
b/arch/x86/include/asm/cpuid.h | 36 ++++
b/arch/x86/include/asm/mpspec.h | 2
b/arch/x86/include/asm/processor.h | 60 ++++--
b/arch/x86/include/asm/smp.h | 4
b/arch/x86/include/asm/topology.h | 51 +++++
b/arch/x86/include/asm/x86_init.h | 2
b/arch/x86/kernel/acpi/boot.c | 4
b/arch/x86/kernel/amd_nb.c | 8
b/arch/x86/kernel/apic/apic.c | 29 ++-
b/arch/x86/kernel/apic/apic_common.c | 4
b/arch/x86/kernel/apic/apic_flat_64.c | 13 -
b/arch/x86/kernel/apic/apic_noop.c | 9 -
b/arch/x86/kernel/apic/apic_numachip.c | 21 --
b/arch/x86/kernel/apic/bigsmp_32.c | 10 -
b/arch/x86/kernel/apic/ipi.c | 5
b/arch/x86/kernel/apic/local.h | 6
b/arch/x86/kernel/apic/probe_32.c | 10 -
b/arch/x86/kernel/apic/x2apic_cluster.c | 1
b/arch/x86/kernel/apic/x2apic_phys.c | 10 -
b/arch/x86/kernel/apic/x2apic_uv_x.c | 67 +------
b/arch/x86/kernel/cpu/Makefile | 5
b/arch/x86/kernel/cpu/amd.c | 156 ------------------
b/arch/x86/kernel/cpu/cacheinfo.c | 51 ++---
b/arch/x86/kernel/cpu/centaur.c | 4
b/arch/x86/kernel/cpu/common.c | 111 +-----------
b/arch/x86/kernel/cpu/cpu.h | 14 +
b/arch/x86/kernel/cpu/debugfs.c | 97 +++++++++++
b/arch/x86/kernel/cpu/hygon.c | 135 ---------------
b/arch/x86/kernel/cpu/intel.c | 38 ----
b/arch/x86/kernel/cpu/mce/amd.c | 4
b/arch/x86/kernel/cpu/mce/apei.c | 4
b/arch/x86/kernel/cpu/mce/core.c | 4
b/arch/x86/kernel/cpu/mce/inject.c | 7
b/arch/x86/kernel/cpu/proc.c | 8
b/arch/x86/kernel/cpu/topology.h | 56 ++++++
b/arch/x86/kernel/cpu/topology_amd.c | 182 +++++++++++++++++++++
b/arch/x86/kernel/cpu/topology_common.c | 241 ++++++++++++++++++++++++++++
b/arch/x86/kernel/cpu/topology_ext.c | 132 +++++++++++++++
b/arch/x86/kernel/cpu/zhaoxin.c | 18 --
b/arch/x86/kernel/kvm.c | 6
b/arch/x86/kernel/sev.c | 2
b/arch/x86/kernel/smpboot.c | 97 ++++++-----
b/arch/x86/kernel/vsmp_64.c | 13 -
b/arch/x86/mm/amdtopology.c | 35 +---
b/arch/x86/mm/numa.c | 4
b/arch/x86/xen/apic.c | 14 -
b/arch/x86/xen/smp_pv.c | 3
b/drivers/edac/amd64_edac.c | 4
b/drivers/edac/mce_amd.c | 4
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2
b/drivers/hwmon/fam15h_power.c | 7
b/drivers/scsi/lpfc/lpfc_init.c | 8
b/drivers/virt/acrn/hsm.c | 2
b/kernel/cpu.c | 16 +
62 files changed, 1095 insertions(+), 970 deletions(-)