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Date: Wed, 17 Sep 2014 15:33:11 -0700
From: Dave Hansen <dave@...1.net>
To: a.p.zijlstra@...llo.nl
Cc: mingo@...nel.org, hpa@...ux.intel.com, brice.goglin@...il.com,
bp@...en8.de, linux-kernel@...r.kernel.org,
Dave Hansen <dave@...1.net>, linux-arch@...r.kernel.org,
dave.hansen@...ux.intel.com
Subject: [RFC][PATCH 1/6] topology: rename topology_core_cpumask() to topology_package_cpumask()
From: Dave Hansen <dave.hansen@...ux.intel.com>
topology_core_cpumask() is a function that arch-independent code
uses. Each (non-generic) architecture will define it in order to
map over to the arch-specific variables storing the actual mask.
I think topology_core_cpumask() is a bad name. It makes it sound
like it is generating a cpumask for *A* core. It is, in fact,
generating the mask of all cores inside a CPU package. Let's
make that more clear with the naming.
For the non-x86 architectures, I'd appreciate a sanity check of
this. It definitely makes sense on x86, but I'm less confident
about the others.
Cc: linux-arch@...r.kernel.org
Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>
---
b/arch/arm/include/asm/topology.h | 2 +-
b/arch/arm64/include/asm/topology.h | 2 +-
b/arch/ia64/include/asm/topology.h | 2 +-
b/arch/metag/include/asm/topology.h | 2 +-
b/arch/mips/include/asm/smp.h | 2 +-
b/arch/powerpc/include/asm/topology.h | 2 +-
b/arch/s390/include/asm/topology.h | 2 +-
b/arch/sh/include/asm/topology.h | 2 +-
b/arch/sparc/include/asm/topology_64.h | 2 +-
b/arch/tile/include/asm/topology.h | 2 +-
b/arch/x86/include/asm/topology.h | 2 +-
b/drivers/base/topology.c | 8 ++++----
b/drivers/block/nvme-core.c | 2 +-
b/drivers/cpufreq/arm_big_little.c | 2 +-
b/drivers/infiniband/hw/qib/qib_iba7322.c | 2 +-
b/include/linux/topology.h | 4 ++--
b/lib/cpu_rmap.c | 2 +-
17 files changed, 21 insertions(+), 21 deletions(-)
diff -puN arch/arm64/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/arm64/include/asm/topology.h
--- a/arch/arm64/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.310517034 -0700
+++ b/arch/arm64/include/asm/topology.h 2014-09-17 15:28:56.341518454 -0700
@@ -17,7 +17,7 @@ extern struct cpu_topology cpu_topology[
#define topology_physical_package_id(cpu) (cpu_topology[cpu].cluster_id)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
-#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
+#define topology_package_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
void init_cpu_topology(void);
diff -puN arch/arm/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/arm/include/asm/topology.h
--- a/arch/arm/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.311517079 -0700
+++ b/arch/arm/include/asm/topology.h 2014-09-17 15:28:56.341518454 -0700
@@ -17,7 +17,7 @@ extern struct cputopo_arm cpu_topology[N
#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
-#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
+#define topology_package_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
void init_cpu_topology(void);
diff -puN arch/ia64/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/ia64/include/asm/topology.h
--- a/arch/ia64/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.313517171 -0700
+++ b/arch/ia64/include/asm/topology.h 2014-09-17 15:28:56.341518454 -0700
@@ -52,7 +52,7 @@ void build_cpu_to_node_map(void);
#ifdef CONFIG_SMP
#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
#define topology_core_id(cpu) (cpu_data(cpu)->core_id)
-#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_package_cpumask(cpu) (&cpu_core_map[cpu])
#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
#endif
diff -puN arch/metag/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/metag/include/asm/topology.h
--- a/arch/metag/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.315517263 -0700
+++ b/arch/metag/include/asm/topology.h 2014-09-17 15:28:56.342518499 -0700
@@ -21,7 +21,7 @@ const struct cpumask *cpu_coregroup_mask
extern cpumask_t cpu_core_map[NR_CPUS];
-#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_package_cpumask(cpu) (&cpu_core_map[cpu])
#include <asm-generic/topology.h>
diff -puN arch/mips/include/asm/smp.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/mips/include/asm/smp.h
--- a/arch/mips/include/asm/smp.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.316517309 -0700
+++ b/arch/mips/include/asm/smp.h 2014-09-17 15:28:56.342518499 -0700
@@ -39,7 +39,7 @@ extern int __cpu_logical_map[NR_CPUS];
#define topology_physical_package_id(cpu) (cpu_data[cpu].package)
#define topology_core_id(cpu) (cpu_data[cpu].core)
-#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_package_cpumask(cpu) (&cpu_core_map[cpu])
#define topology_thread_cpumask(cpu) (&cpu_sibling_map[cpu])
#define SMP_RESCHEDULE_YOURSELF 0x1 /* XXX braindead */
diff -puN arch/powerpc/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/powerpc/include/asm/topology.h
--- a/arch/powerpc/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.318517401 -0700
+++ b/arch/powerpc/include/asm/topology.h 2014-09-17 15:28:56.342518499 -0700
@@ -88,7 +88,7 @@ static inline int prrn_is_enabled(void)
#define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu))
#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
-#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
+#define topology_package_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
#define topology_core_id(cpu) (cpu_to_core_id(cpu))
#endif
#endif
diff -puN arch/s390/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/s390/include/asm/topology.h
--- a/arch/s390/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.320517491 -0700
+++ b/arch/s390/include/asm/topology.h 2014-09-17 15:28:56.343518544 -0700
@@ -20,7 +20,7 @@ extern struct cpu_topology_s390 cpu_topo
#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
-#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask)
+#define topology_package_cpumask(cpu) (&cpu_topology[cpu].core_mask)
#define topology_book_id(cpu) (cpu_topology[cpu].book_id)
#define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask)
diff -puN arch/sh/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/sh/include/asm/topology.h
--- a/arch/sh/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.321517537 -0700
+++ b/arch/sh/include/asm/topology.h 2014-09-17 15:28:56.343518544 -0700
@@ -21,7 +21,7 @@ const struct cpumask *cpu_coregroup_mask
extern cpumask_t cpu_core_map[NR_CPUS];
-#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_package_cpumask(cpu) (&cpu_core_map[cpu])
#include <asm-generic/topology.h>
diff -puN arch/sparc/include/asm/topology_64.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/sparc/include/asm/topology_64.h
--- a/arch/sparc/include/asm/topology_64.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.323517629 -0700
+++ b/arch/sparc/include/asm/topology_64.h 2014-09-17 15:28:56.343518544 -0700
@@ -40,7 +40,7 @@ static inline int pcibus_to_node(struct
#ifdef CONFIG_SMP
#define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id)
#define topology_core_id(cpu) (cpu_data(cpu).core_id)
-#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
+#define topology_package_cpumask(cpu) (&cpu_core_map[cpu])
#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
#endif /* CONFIG_SMP */
diff -puN arch/tile/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/tile/include/asm/topology.h
--- a/arch/tile/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.325517721 -0700
+++ b/arch/tile/include/asm/topology.h 2014-09-17 15:28:56.344518590 -0700
@@ -54,7 +54,7 @@ static inline const struct cpumask *cpum
#ifdef CONFIG_SMP
#define topology_physical_package_id(cpu) ((void)(cpu), 0)
#define topology_core_id(cpu) (cpu)
-#define topology_core_cpumask(cpu) ((void)(cpu), cpu_online_mask)
+#define topology_package_cpumask(cpu) ((void)(cpu), cpu_online_mask)
#define topology_thread_cpumask(cpu) cpumask_of(cpu)
#endif
diff -puN arch/x86/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask arch/x86/include/asm/topology.h
--- a/arch/x86/include/asm/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.326517767 -0700
+++ b/arch/x86/include/asm/topology.h 2014-09-17 15:28:56.344518590 -0700
@@ -123,7 +123,7 @@ extern const struct cpumask *cpu_coregro
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
#ifdef ENABLE_TOPO_DEFINES
-#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
+#define topology_package_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
#endif
diff -puN drivers/base/topology.c~rename-topology_cpu_cpumask-topology_package_cpumask drivers/base/topology.c
--- a/drivers/base/topology.c~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.328517857 -0700
+++ b/drivers/base/topology.c 2014-09-17 15:28:56.344518590 -0700
@@ -42,7 +42,7 @@ static ssize_t show_##name(struct device
return sprintf(buf, "%d\n", topology_##name(dev->id)); \
}
-#if defined(topology_thread_cpumask) || defined(topology_core_cpumask) || \
+#if defined(topology_thread_cpumask) || defined(topology_package_cpumask) || \
defined(topology_book_cpumask)
static ssize_t show_cpumap(int type, const struct cpumask *mask, char *buf)
{
@@ -88,9 +88,9 @@ define_siblings_show_func(thread_cpumask
define_one_ro_named(thread_siblings, show_thread_cpumask);
define_one_ro_named(thread_siblings_list, show_thread_cpumask_list);
-define_siblings_show_func(core_cpumask);
-define_one_ro_named(core_siblings, show_core_cpumask);
-define_one_ro_named(core_siblings_list, show_core_cpumask_list);
+define_siblings_show_func(package_cpumask);
+define_one_ro_named(core_siblings, show_package_cpumask);
+define_one_ro_named(core_siblings_list, show_package_cpumask_list);
#ifdef CONFIG_SCHED_BOOK
define_id_show_func(book_id);
diff -puN drivers/block/nvme-core.c~rename-topology_cpu_cpumask-topology_package_cpumask drivers/block/nvme-core.c
--- a/drivers/block/nvme-core.c~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.330517950 -0700
+++ b/drivers/block/nvme-core.c 2014-09-17 15:28:56.345518636 -0700
@@ -2054,7 +2054,7 @@ static void nvme_assign_io_queues(struct
nvmeq, cpus_per_queue);
if (cpus_weight(mask) < cpus_per_queue)
nvme_add_cpus(&mask, unassigned_cpus,
- topology_core_cpumask(cpu),
+ topology_package_cpumask(cpu),
nvmeq, cpus_per_queue);
if (cpus_weight(mask) < cpus_per_queue)
nvme_add_cpus(&mask, unassigned_cpus,
diff -puN drivers/cpufreq/arm_big_little.c~rename-topology_cpu_cpumask-topology_package_cpumask drivers/cpufreq/arm_big_little.c
--- a/drivers/cpufreq/arm_big_little.c~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.332518042 -0700
+++ b/drivers/cpufreq/arm_big_little.c 2014-09-17 15:28:56.346518682 -0700
@@ -449,7 +449,7 @@ static int bL_cpufreq_init(struct cpufre
if (cur_cluster < MAX_CLUSTERS) {
int cpu;
- cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+ cpumask_copy(policy->cpus, topology_package_cpumask(policy->cpu));
for_each_cpu(cpu, policy->cpus)
per_cpu(physical_cluster, cpu) = cur_cluster;
diff -puN drivers/infiniband/hw/qib/qib_iba7322.c~rename-topology_cpu_cpumask-topology_package_cpumask drivers/infiniband/hw/qib/qib_iba7322.c
--- a/drivers/infiniband/hw/qib/qib_iba7322.c~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.334518132 -0700
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c 2014-09-17 15:28:56.349518820 -0700
@@ -3449,7 +3449,7 @@ try_intx:
firstcpu = cpumask_first(local_mask);
if (firstcpu >= nr_cpu_ids ||
cpumask_weight(local_mask) == num_online_cpus()) {
- local_mask = topology_core_cpumask(0);
+ local_mask = topology_package_cpumask(0);
firstcpu = cpumask_first(local_mask);
}
if (firstcpu < nr_cpu_ids) {
diff -puN include/linux/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask include/linux/topology.h
--- a/include/linux/topology.h~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.336518224 -0700
+++ b/include/linux/topology.h 2014-09-17 15:28:56.350518866 -0700
@@ -177,8 +177,8 @@ static inline int cpu_to_mem(int cpu)
#ifndef topology_thread_cpumask
#define topology_thread_cpumask(cpu) cpumask_of(cpu)
#endif
-#ifndef topology_core_cpumask
-#define topology_core_cpumask(cpu) cpumask_of(cpu)
+#ifndef topology_package_cpumask
+#define topology_package_cpumask(cpu) cpumask_of(cpu)
#endif
#ifdef CONFIG_SCHED_SMT
diff -puN lib/cpu_rmap.c~rename-topology_cpu_cpumask-topology_package_cpumask lib/cpu_rmap.c
--- a/lib/cpu_rmap.c~rename-topology_cpu_cpumask-topology_package_cpumask 2014-09-17 15:28:56.337518270 -0700
+++ b/lib/cpu_rmap.c 2014-09-17 15:28:56.350518866 -0700
@@ -194,7 +194,7 @@ int cpu_rmap_update(struct cpu_rmap *rma
topology_thread_cpumask(cpu), 1))
continue;
if (cpu_rmap_copy_neigh(rmap, cpu,
- topology_core_cpumask(cpu), 2))
+ topology_package_cpumask(cpu), 2))
continue;
if (cpu_rmap_copy_neigh(rmap, cpu,
cpumask_of_node(cpu_to_node(cpu)), 3))
_
--
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