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s390/topology: use cpu_topology array instead of per cpu variable

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CPU topology information like cpu to node mapping must be setup in
setup_arch already. Topology information is currently made available
with a per cpu variable; this however will not work when the
initialization will be moved to setup_arch, since the generic percpu
setup will be done much later.

Therefore convert back to a cpu_topology array.

Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2016-12-02 10:38:37 +01:00
committed by Martin Schwidefsky
parent af51160ebd
commit 30fc4ca2a8
3 changed files with 22 additions and 23 deletions
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23
arch/s390/include/asm/topology.h
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@@ -22,18 +22,17 @@ struct cpu_topology_s390 {
cpumask_t drawer_mask;
};
DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
extern struct cpu_topology_s390 cpu_topology[NR_CPUS];
#define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
#define topology_thread_id(cpu) (per_cpu(cpu_topology, cpu).thread_id)
#define topology_sibling_cpumask(cpu) \
(&per_cpu(cpu_topology, cpu).thread_mask)
#define topology_core_id(cpu) (per_cpu(cpu_topology, cpu).core_id)
#define topology_core_cpumask(cpu) (&per_cpu(cpu_topology, cpu).core_mask)
#define topology_book_id(cpu) (per_cpu(cpu_topology, cpu).book_id)
#define topology_book_cpumask(cpu) (&per_cpu(cpu_topology, cpu).book_mask)
#define topology_drawer_id(cpu) (per_cpu(cpu_topology, cpu).drawer_id)
#define topology_drawer_cpumask(cpu) (&per_cpu(cpu_topology, cpu).drawer_mask)
#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
#define topology_thread_id(cpu) (cpu_topology[cpu].thread_id)
#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_mask)
#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
#define topology_core_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)
#define topology_drawer_id(cpu) (cpu_topology[cpu].drawer_id)
#define topology_drawer_cpumask(cpu) (&cpu_topology[cpu].drawer_mask)
#define mc_capable() 1
@@ -65,7 +64,7 @@ static inline void topology_expect_change(void) { }
#define cpu_to_node cpu_to_node
static inline int cpu_to_node(int cpu)
{
return per_cpu(cpu_topology, cpu).node_id;
return cpu_topology[cpu].node_id;
}
/* Returns a pointer to the cpumask of CPUs on node 'node'. */