x86/cpu: Move phys_proc_id into topology info

Rename it to pkg_id which is the terminology used in the kernel.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230814085112.329006989@linutronix.de

Author: KAGA-KOKO

Documentation/arch/x86/topology.rst

@@ -59,7 +59,7 @@ Package-related topology information in the kernel:
 
     The physical ID of the die. This information is retrieved via CPUID.
 
-  - cpuinfo_x86.phys_proc_id:
+  - cpuinfo_x86.topo.pkg_id:
 
     The physical ID of the package. This information is retrieved via CPUID
     and deduced from the APIC IDs of the cores in the package.

arch/x86/include/asm/processor.h

@@ -83,6 +83,9 @@ struct cpuinfo_topology {
 	u32			apicid;
 	// The initial APIC ID provided by CPUID
 	u32			initial_apicid;
+
+	// Physical package ID
+	u32			pkg_id;
 };
 
 struct cpuinfo_x86 {
@@ -134,8 +137,6 @@ struct cpuinfo_x86 {
 	u16			x86_clflush_size;
 	/* number of cores as seen by the OS: */
 	u16			booted_cores;
-	/* Physical processor id: */
-	u16			phys_proc_id;
 	/* Logical processor id: */
 	u16			logical_proc_id;
 	/* Core id: */

arch/x86/include/asm/topology.h

@@ -106,7 +106,7 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu);
 extern const struct cpumask *cpu_clustergroup_mask(int cpu);
 
 #define topology_logical_package_id(cpu)	(cpu_data(cpu).logical_proc_id)
-#define topology_physical_package_id(cpu)	(cpu_data(cpu).phys_proc_id)
+#define topology_physical_package_id(cpu)	(cpu_data(cpu).topo.pkg_id)
 #define topology_logical_die_id(cpu)		(cpu_data(cpu).logical_die_id)
 #define topology_die_id(cpu)			(cpu_data(cpu).cpu_die_id)
 #define topology_core_id(cpu)			(cpu_data(cpu).cpu_core_id)

arch/x86/include/asm/x86_init.h

@@ -177,7 +177,7 @@ struct x86_init_ops {
  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
  * @setup_percpu_clockev:	set up the per cpu clock event device
  * @early_percpu_clock_init:	early init of the per cpu clock event device
- * @fixup_cpu_id:		fixup function for cpuinfo_x86::phys_proc_id
+ * @fixup_cpu_id:		fixup function for cpuinfo_x86::topo.pkg_id
  * @parallel_bringup:		Parallel bringup control
  */
 struct x86_cpuinit_ops {

arch/x86/kernel/apic/apic_numachip.c

@@ -169,7 +169,7 @@ static void fixup_cpu_id(struct cpuinfo_x86 *c, int node)
 		nodes = ((val >> 3) & 7) + 1;
 	}
 
-	c->phys_proc_id = node / nodes;
+	c->topo.pkg_id = node / nodes;
 }
 
 static int __init numachip_system_init(void)

arch/x86/kernel/cpu/amd.c

@@ -461,9 +461,9 @@ static void amd_detect_cmp(struct cpuinfo_x86 *c)
 	/* Low order bits define the core id (index of core in socket) */
 	c->cpu_core_id = c->topo.initial_apicid & ((1 << bits)-1);
 	/* Convert the initial APIC ID into the socket ID */
-	c->phys_proc_id = c->topo.initial_apicid >> bits;
+	c->topo.pkg_id = c->topo.initial_apicid >> bits;
 	/* use socket ID also for last level cache */
-	per_cpu(cpu_llc_id, cpu) = c->cpu_die_id = c->phys_proc_id;
+	per_cpu(cpu_llc_id, cpu) = c->cpu_die_id = c->topo.pkg_id;
 }
 
 u32 amd_get_nodes_per_socket(void)

arch/x86/kernel/cpu/cacheinfo.c

@@ -875,10 +875,10 @@ void init_intel_cacheinfo(struct cpuinfo_x86 *c)
 	 * turns means that the only possibility is SMT (as indicated in
 	 * cpuid1). Since cpuid2 doesn't specify shared caches, and we know
 	 * that SMT shares all caches, we can unconditionally set cpu_llc_id to
-	 * c->phys_proc_id.
+	 * c->topo.pkg_id.
 	 */
 	if (per_cpu(cpu_llc_id, cpu) == BAD_APICID)
-		per_cpu(cpu_llc_id, cpu) = c->phys_proc_id;
+		per_cpu(cpu_llc_id, cpu) = c->topo.pkg_id;
 #endif
 
 	c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));

arch/x86/kernel/cpu/common.c

@@ -914,7 +914,7 @@ void detect_ht(struct cpuinfo_x86 *c)
 		return;
 
 	index_msb = get_count_order(smp_num_siblings);
-	c->phys_proc_id = apic->phys_pkg_id(c->topo.initial_apicid, index_msb);
+	c->topo.pkg_id = apic->phys_pkg_id(c->topo.initial_apicid, index_msb);
 
 	smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
@@ -1769,7 +1769,7 @@ static void generic_identify(struct cpuinfo_x86 *c)
 		c->topo.apicid = c->topo.initial_apicid;
 # endif
 #endif
-		c->phys_proc_id = c->topo.initial_apicid;
+		c->topo.pkg_id = c->topo.initial_apicid;
 	}
 
 	get_model_name(c); /* Default name */
@@ -1807,7 +1807,7 @@ static void validate_apic_and_package_id(struct cpuinfo_x86 *c)
 		pr_err(FW_BUG "CPU%u: APIC id mismatch. Firmware: %x APIC: %x\n",
 		       cpu, apicid, c->topo.initial_apicid);
 	}
-	BUG_ON(topology_update_package_map(c->phys_proc_id, cpu));
+	BUG_ON(topology_update_package_map(c->topo.pkg_id, cpu));
 	BUG_ON(topology_update_die_map(c->cpu_die_id, cpu));
 #else
 	c->logical_proc_id = 0;

arch/x86/kernel/cpu/hygon.c

@@ -92,7 +92,7 @@ static void hygon_get_topology(struct cpuinfo_x86 *c)
 		 * when running on host.
 		 */
 		if (!boot_cpu_has(X86_FEATURE_HYPERVISOR) && c->x86_model <= 0x3)
-			c->phys_proc_id = c->topo.apicid >> APICID_SOCKET_ID_BIT;
+			c->topo.pkg_id = c->topo.apicid >> APICID_SOCKET_ID_BIT;
 
 		cacheinfo_hygon_init_llc_id(c, cpu);
 	} else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) {
@@ -122,9 +122,9 @@ static void hygon_detect_cmp(struct cpuinfo_x86 *c)
 	/* Low order bits define the core id (index of core in socket) */
 	c->cpu_core_id = c->topo.initial_apicid & ((1 << bits)-1);
 	/* Convert the initial APIC ID into the socket ID */
-	c->phys_proc_id = c->topo.initial_apicid >> bits;
+	c->topo.pkg_id = c->topo.initial_apicid >> bits;
 	/* use socket ID also for last level cache */
-	per_cpu(cpu_llc_id, cpu) = c->cpu_die_id = c->phys_proc_id;
+	per_cpu(cpu_llc_id, cpu) = c->cpu_die_id = c->topo.pkg_id;
 }
 
 static void srat_detect_node(struct cpuinfo_x86 *c)

arch/x86/kernel/cpu/mce/apei.c

@@ -105,7 +105,7 @@ int apei_smca_report_x86_error(struct cper_ia_proc_ctx *ctx_info, u64 lapic_id)
 	for_each_possible_cpu(cpu) {
 		if (cpu_data(cpu).topo.initial_apicid == lapic_id) {
 			m.extcpu = cpu;
-			m.socketid = cpu_data(m.extcpu).phys_proc_id;
+			m.socketid = cpu_data(m.extcpu).topo.pkg_id;
 			break;
 		}
 	}