xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64, numa: Add NUMA support for arm64 platforms.

Browse Source 
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>
This commit is contained in:
Ganapatrao Kulkarni
2016-04-08 15:50:27 -07:00
committed by Will Deacon
parent 3194ac6e66
commit 1a2db30034
10 changed files with 538 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm64/include/asm/topology.h
View File

@@ -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 */