Messages in this thread Patch in this message | | | Date | Thu, 8 May 2014 03:43:44 -0700 | From | tip-bot for Vincent Guittot <> | Subject | [tip:sched/core] sched, s390: Create a dedicated topology table |
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Commit-ID: 2dfd747629e65f89d2dbceb92fffc763f66228b2 Gitweb: http://git.kernel.org/tip/2dfd747629e65f89d2dbceb92fffc763f66228b2 Author: Vincent Guittot <vincent.guittot@linaro.org> AuthorDate: Fri, 11 Apr 2014 11:44:38 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Wed, 7 May 2014 13:33:50 +0200
sched, s390: Create a dedicated topology table
BOOK level is only relevant for s390 so we create a dedicated topology table with BOOK level and remove it from default table.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Philipp Hachtmann <phacht@linux.vnet.ibm.com> Cc: cmetcalf@tilera.com Cc: benh@kernel.crashing.org Cc: dietmar.eggemann@arm.com Cc: preeti@linux.vnet.ibm.com Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Link: http://lkml.kernel.org/r/1397209481-28542-3-git-send-email-vincent.guittot@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/s390/include/asm/topology.h | 11 +---------- arch/s390/kernel/topology.c | 20 ++++++++++++++++++++ kernel/sched/core.c | 3 --- 3 files changed, 21 insertions(+), 13 deletions(-)
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 07763bd..56af530 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -26,21 +26,12 @@ extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; #define mc_capable() 1 -static inline const struct cpumask *cpu_coregroup_mask(int cpu) -{ - return &cpu_topology[cpu].core_mask; -} - -static inline const struct cpumask *cpu_book_mask(int cpu) -{ - return &cpu_topology[cpu].book_mask; -} - int topology_cpu_init(struct cpu *); int topology_set_cpu_management(int fc); void topology_schedule_update(void); void store_topology(struct sysinfo_15_1_x *info); void topology_expect_change(void); +const struct cpumask *cpu_coregroup_mask(int cpu); #else /* CONFIG_SCHED_BOOK */ diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 6298fed..1860ad3 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -443,6 +443,23 @@ int topology_cpu_init(struct cpu *cpu) return sysfs_create_group(&cpu->dev.kobj, &topology_cpu_attr_group); } +const struct cpumask *cpu_coregroup_mask(int cpu) +{ + return &cpu_topology[cpu].core_mask; +} + +static const struct cpumask *cpu_book_mask(int cpu) +{ + return &cpu_topology[cpu].book_mask; +} + +static struct sched_domain_topology_level s390_topology[] = { + { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) }, + { cpu_book_mask, SD_INIT_NAME(BOOK) }, + { cpu_cpu_mask, SD_INIT_NAME(DIE) }, + { NULL, }, +}; + static int __init topology_init(void) { if (!MACHINE_HAS_TOPOLOGY) { @@ -451,6 +468,9 @@ static int __init topology_init(void) } set_topology_timer(); out: + + set_sched_topology(s390_topology); + return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching); } device_initcall(topology_init); diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7d332b7..e59e5ae 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6024,9 +6024,6 @@ static struct sched_domain_topology_level default_topology[] = { #ifdef CONFIG_SCHED_MC { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) }, #endif -#ifdef CONFIG_SCHED_BOOK - { cpu_book_mask, SD_INIT_NAME(BOOK) }, -#endif { cpu_cpu_mask, SD_INIT_NAME(DIE) }, { NULL, }, };
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