diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2018-07-06 13:02:43 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-07-06 14:18:18 +0200 |
| commit | 97fd6016a7b3df00901b4cfdd883eac01e89fa8a (patch) | |
| tree | ad49f122917cd995f8d32788be8bd2f36e1d8d2c /arch/arm64/include/asm/numa.h | |
| parent | arm64: topology: refactor reset_cpu_topology to add support for removing topo... (diff) | |
| download | linux-97fd6016a7b3df00901b4cfdd883eac01e89fa8a.tar.xz linux-97fd6016a7b3df00901b4cfdd883eac01e89fa8a.zip | |
arm64: numa: separate out updates to percpu nodeid and NUMA node cpumap
Currently numa_clear_node removes both cpu information from the NUMA
node cpumap as well as the NUMA node id from the cpu. Similarly
numa_store_cpu_info updates both percpu nodeid and NUMA cpumap.
However we need to retain the numa node id for the cpu and only remove
the cpu information from the numa node cpumap during CPU hotplug out.
The same can be extended for hotplugging in the CPU.
This patch separates out numa_{add,remove}_cpu from numa_clear_node and
numa_store_cpu_info.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
Tested-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@cavium.com>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/numa.h')
| -rw-r--r-- | arch/arm64/include/asm/numa.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h index 01bc46d5b43a..626ad01e83bf 100644 --- a/arch/arm64/include/asm/numa.h +++ b/arch/arm64/include/asm/numa.h @@ -35,10 +35,14 @@ void __init numa_set_distance(int from, int to, int distance); void __init numa_free_distance(void); void __init early_map_cpu_to_node(unsigned int cpu, int nid); void numa_store_cpu_info(unsigned int cpu); +void numa_add_cpu(unsigned int cpu); +void numa_remove_cpu(unsigned int cpu); #else /* CONFIG_NUMA */ static inline void numa_store_cpu_info(unsigned int cpu) { } +static inline void numa_add_cpu(unsigned int cpu) { } +static inline void numa_remove_cpu(unsigned int cpu) { } static inline void arm64_numa_init(void) { } static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } |