On Thu, Oct 19, 2017 at 11:54:22AM -0500, Jeremy Linton wrote:

[...]

quoted

quoted

+			cpu_topology[cpu].core_id   = topology_id;
+			topology_id = setup_acpi_cpu_topology(cpu, 2);
+			cpu_topology[cpu].cluster_id = topology_id;
+			topology_id = setup_acpi_cpu_topology(cpu, max_topo);

If you want a package id (that's just a package tag to group cores), you
should not use a large level because you know how setup_acpi_cpu_topology()works, you should add an API that allows you to retrieve the package id
(so that you can use th ACPI_PPTT_PHYSICAL_PACKAGE flag consistenly,
whatever it represents).

I don't think the spec requires the use of PHYSICAL_PACKAGE... Am I
misreading it? Which means we need to "pick" a node level to
represent the physical package if one doesn't exist...

The specs define a means to detect if a given PPTT node corresponds to a
package (I am refraining from stating again that to me that's not clean
cut what a package is _architecturally_, I think you know my POV by now)
and that's what you need to use to retrieve a packageid for a given cpu,
if I understand the aim of the physical package flag.

Either that or that flag is completely useless.

Lorenzo

ACPI 6.2 - Table 5-151 (page 248)
Physical package
-----------------
Set to 1 if this node of the processor topology represents the boundary
of a physical package, whether socketed or surface mounted.  Set to 0 if
this instance of the processor topology does not represent the boundary
of a physical package.