[patch V4 06/41] x86/cpu: Move cpu_die_id into topology info

Thomas Gleixner
2023-08-14T08:54:44Z

Move the next member.

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>

---
Documentation/arch/x86/topology.rst | 4 ++--
arch/x86/include/asm/processor.h | 4 +++-
arch/x86/include/asm/topology.h | 2 +-
arch/x86/kernel/cpu/amd.c | 8 ++++----
arch/x86/kernel/cpu/cacheinfo.c | 2 +-
arch/x86/kernel/cpu/common.c | 2 +-
arch/x86/kernel/cpu/hygon.c | 8 ++++----
arch/x86/kernel/cpu/topology.c | 2 +-
arch/x86/kernel/smpboot.c | 10 +++++-----
9 files changed, 22 insertions(+), 20 deletions(-)

--- a/Documentation/arch/x86/topology.rst
+++ b/Documentation/arch/x86/topology.rst
@@ -55,7 +55,7 @@ AMD nomenclature for package is 'Node'.

The number of dies in a package. This information is retrieved via CPUID.

- - cpuinfo_x86.cpu_die_id:
+ - cpuinfo_x86.topo.die_id:

The physical ID of the die. This information is retrieved via CPUID.

@@ -65,7 +65,7 @@ AMD nomenclature for package is 'Node'.
and deduced from the APIC IDs of the cores in the package.

Modern systems use this value for the socket. There may be multiple
- packages within a socket. This value may differ from cpu_die_id.
+ packages within a socket. This value may differ from topo.die_id.

- cpuinfo_x86.logical_proc_id:

--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -85,6 +85,9 @@ struct cpuinfo_topology {

// Physical package ID
u32 pkg_id;
+
+ // Physical die ID on AMD, Relative on Intel
+ u32 die_id;
};

struct cpuinfo_x86 {
@@ -140,7 +143,6 @@ struct cpuinfo_x86 {
u16 logical_proc_id;
/* Core id: */
u16 cpu_core_id;
- u16 cpu_die_id;
u16 logical_die_id;
/* Index into per_cpu list: */
u16 cpu_index;
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -108,7 +108,7 @@ extern const struct cpumask *cpu_cluster
#define topology_logical_package_id(cpu) (cpu_data(cpu).logical_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_die_id(cpu) (cpu_data(cpu).topo.die_id)
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
#define topology_ppin(cpu) (cpu_data(cpu).ppin)

--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -405,7 +405,7 @@ static void amd_get_topology(struct cpui

cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);

- c->cpu_die_id = ecx & 0xff;
+ c->topo.die_id = ecx & 0xff;

if (c->x86 == 0x15)
c->cu_id = ebx & 0xff;
@@ -431,9 +431,9 @@ static void amd_get_topology(struct cpui
u64 value;

rdmsrl(MSR_FAM10H_NODE_ID, value);
- c->cpu_die_id = value & 7;
+ c->topo.die_id = value & 7;

- per_cpu(cpu_llc_id, cpu) = c->cpu_die_id;
+ per_cpu(cpu_llc_id, cpu) = c->topo.die_id;
} else
return;

@@ -458,7 +458,7 @@ static void amd_detect_cmp(struct cpuinf
/* Convert the initial APIC ID into the socket ID */
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->topo.pkg_id;
+ per_cpu(cpu_llc_id, cpu) = c->topo.die_id = c->topo.pkg_id;
}

u32 amd_get_nodes_per_socket(void)
--- a/arch/x86/kernel/cpu/cacheinfo.c
+++ b/arch/x86/kernel/cpu/cacheinfo.c
@@ -672,7 +672,7 @@ void cacheinfo_amd_init_llc_id(struct cp

if (c->x86 < 0x17) {
/* LLC is at the node level. */
- per_cpu(cpu_llc_id, cpu) = c->cpu_die_id;
+ per_cpu(cpu_llc_id, cpu) = c->topo.die_id;
} else if (c->x86 == 0x17 && c->x86_model <= 0x1F) {
/*
* LLC is at the core complex level.
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1768,7 +1768,7 @@ static void validate_apic_and_package_id
cpu, apicid, c->topo.initial_apicid);
}
BUG_ON(topology_update_package_map(c->topo.pkg_id, cpu));
- BUG_ON(topology_update_die_map(c->cpu_die_id, cpu));
+ BUG_ON(topology_update_die_map(c->topo.die_id, cpu));
#else
c->logical_proc_id = 0;
#endif
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -72,7 +72,7 @@ static void hygon_get_topology(struct cp

cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);

- c->cpu_die_id = ecx & 0xff;
+ c->topo.die_id = ecx & 0xff;

c->cpu_core_id = ebx & 0xff;

@@ -95,9 +95,9 @@ static void hygon_get_topology(struct cp
u64 value;

rdmsrl(MSR_FAM10H_NODE_ID, value);
- c->cpu_die_id = value & 7;
+ c->topo.die_id = value & 7;

- per_cpu(cpu_llc_id, cpu) = c->cpu_die_id;
+ per_cpu(cpu_llc_id, cpu) = c->topo.die_id;
} else
return;

@@ -120,7 +120,7 @@ static void hygon_detect_cmp(struct cpui
/* Convert the initial APIC ID into the socket ID */
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->topo.pkg_id;
+ per_cpu(cpu_llc_id, cpu) = c->topo.die_id = c->topo.pkg_id;
}

static void srat_detect_node(struct cpuinfo_x86 *c)
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -150,7 +150,7 @@ int detect_extended_topology(struct cpui
ht_mask_width) & core_select_mask;

if (die_level_present) {
- c->cpu_die_id = apic->phys_pkg_id(c->topo.initial_apicid,
+ c->topo.die_id = apic->phys_pkg_id(c->topo.initial_apicid,
core_plus_mask_width) & die_select_mask;
}

--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -368,7 +368,7 @@ static int topology_phys_to_logical_die(
for_each_possible_cpu(cpu) {
struct cpuinfo_x86 *c = &cpu_data(cpu);

- if (c->initialized && c->cpu_die_id == die_id &&
+ if (c->initialized && c->topo.die_id == die_id &&
c->topo.pkg_id == proc_id)
return c->logical_die_id;
}
@@ -430,7 +430,7 @@ void __init smp_store_boot_cpu_info(void
*c = boot_cpu_data;
c->cpu_index = id;
topology_update_package_map(c->topo.pkg_id, id);
- topology_update_die_map(c->cpu_die_id, id);
+ topology_update_die_map(c->topo.die_id, id);
c->initialized = true;
}

@@ -485,7 +485,7 @@ static bool match_smt(struct cpuinfo_x86
int cpu1 = c->cpu_index, cpu2 = o->cpu_index;

if (c->topo.pkg_id == o->topo.pkg_id &&
- c->cpu_die_id == o->cpu_die_id &&
+ c->topo.die_id == o->topo.die_id &&
per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2)) {
if (c->cpu_core_id == o->cpu_core_id)
return topology_sane(c, o, "smt");
@@ -497,7 +497,7 @@ static bool match_smt(struct cpuinfo_x86
}

} else if (c->topo.pkg_id == o->topo.pkg_id &&
- c->cpu_die_id == o->cpu_die_id &&
+ c->topo.die_id == o->topo.die_id &&
c->cpu_core_id == o->cpu_core_id) {
return topology_sane(c, o, "smt");
}
@@ -508,7 +508,7 @@ static bool match_smt(struct cpuinfo_x86
static bool match_die(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
{
if (c->topo.pkg_id == o->topo.pkg_id &&
- c->cpu_die_id == o->cpu_die_id)
+ c->topo.die_id == o->topo.die_id)
return true;
return false;
}