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| author | Ganapatrao Kulkarni | 2016-04-09 00:50:27 +0200 |
|---|---|---|
| committer | Will Deacon | 2016-04-15 19:06:09 +0200 |
| commit | 1a2db300348b799479d2d22b84d51b27ad0458c7 (patch) | |
| tree | c9e3329f00575143dae72e14725b9e48161e34d7 /arch/arm64/include/asm/topology.h | |
| parent | arm64: Move unflatten_device_tree() call earlier. (diff) | |
| download | kernel-qcow2-linux-1a2db300348b799479d2d22b84d51b27ad0458c7.tar.gz kernel-qcow2-linux-1a2db300348b799479d2d22b84d51b27ad0458c7.tar.xz kernel-qcow2-linux-1a2db300348b799479d2d22b84d51b27ad0458c7.zip | |
arm64, numa: Add NUMA support for arm64 platforms.
Attempt to get the memory and CPU NUMA node via of_numa. If that
fails, default the dummy NUMA node and map all memory and CPUs to node
0.
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/topology.h')
| -rw-r--r-- | arch/arm64/include/asm/topology.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h index a3e9d6fdbf21..8b57339823e9 100644 --- a/arch/arm64/include/asm/topology.h +++ b/arch/arm64/include/asm/topology.h @@ -22,6 +22,16 @@ void init_cpu_topology(void); void store_cpu_topology(unsigned int cpuid); const struct cpumask *cpu_coregroup_mask(int cpu); +#ifdef CONFIG_NUMA + +struct pci_bus; +int pcibus_to_node(struct pci_bus *bus); +#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ + cpu_all_mask : \ + cpumask_of_node(pcibus_to_node(bus))) + +#endif /* CONFIG_NUMA */ + #include <asm-generic/topology.h> #endif /* _ASM_ARM_TOPOLOGY_H */ |