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8302bd9afd
[ Upstream commit 028c221ed1904af9ac3c5162ee98f48966de6b3d ] AMD systems provide a "NodeId" value that represents a global ID indicating to which "Node" a logical CPU belongs. The "Node" is a physical structure equivalent to a Die, and it should not be confused with logical structures like NUMA nodes. Logical nodes can be adjusted based on firmware or other settings whereas the physical nodes/dies are fixed based on hardware topology. The NodeId value can be used when a physical ID is needed by software. Save the AMD NodeId to struct cpuinfo_x86.cpu_die_id. Use the value from CPUID or MSR as appropriate. Default to phys_proc_id otherwise. Do so for both AMD and Hygon systems. Drop the node_id parameter from cacheinfo_*_init_llc_id() as it is no longer needed. Update the x86 topology documentation. Suggested-by: Borislav Petkov <[email protected]> Signed-off-by: Yazen Ghannam <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Sasha Levin <[email protected]> |
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| .. | ||
| i386 | ||
| x86_64 | ||
| amd-memory-encryption.rst | ||
| boot.rst | ||
| earlyprintk.rst | ||
| entry_64.rst | ||
| exception-tables.rst | ||
| index.rst | ||
| intel-iommu.rst | ||
| intel_mpx.rst | ||
| intel_txt.rst | ||
| kernel-stacks.rst | ||
| mds.rst | ||
| microcode.rst | ||
| mtrr.rst | ||
| orc-unwinder.rst | ||
| pat.rst | ||
| pti.rst | ||
| resctrl_ui.rst | ||
| tlb.rst | ||
| topology.rst | ||
| tsx_async_abort.rst | ||
| usb-legacy-support.rst | ||
| zero-page.rst | ||