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arm64, numa: Change the numa init functions name to be generic 

This is a preparatory patch for unifying numa implementation between
ARM64 & RISC-V. As the numa implementation will be moved to generic
code, rename the arm64 related functions to a generic one.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Atish Patra 2020-11-18 16:38:25 -08:00 committed by Palmer Dabbelt
parent 5a2308da9f
commit eb75541f8b
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GPG Key ID: 2E1319F35FBB1889
4 changed files with 27 additions and 20 deletions
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4
arch/arm64/include/asm/numa.h
View File

@ -32,7 +32,7 @@ static inline const struct cpumask *cpumask_of_node(int node)
}
#endif
void __init arm64_numa_init(void);
void __init arch_numa_init(void);
int __init numa_add_memblk(int nodeid, u64 start, u64 end);
void __init numa_set_distance(int from, int to, int distance);
void __init numa_free_distance(void);
@ -46,7 +46,7 @@ void numa_remove_cpu(unsigned int cpu);
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 arch_numa_init(void) { }
static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { }
#endif /* CONFIG_NUMA */

12
arch/arm64/kernel/acpi_numa.c
View File

@ -118,15 +118,3 @@ void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa)
node_set(node, numa_nodes_parsed);
}
int __init arm64_acpi_numa_init(void)
{
int ret;
ret = acpi_numa_init();
if (ret) {
pr_info("Failed to initialise from firmware\n");
return ret;
}
return srat_disabled() ? -EINVAL : 0;
}

4
arch/arm64/mm/init.c
View File

@ -418,10 +418,10 @@ void __init bootmem_init(void)
max_pfn = max_low_pfn = max;
min_low_pfn = min;
arm64_numa_init();
arch_numa_init();
/*
* must be done after arm64_numa_init() which calls numa_init() to
* must be done after arch_numa_init() which calls numa_init() to
* initialize node_online_map that gets used in hugetlb_cma_reserve()
* while allocating required CMA size across online nodes.
*/

27
arch/arm64/mm/numa.c
View File

@ -13,7 +13,6 @@
#include <linux/module.h>
#include <linux/of.h>
#include <asm/acpi.h>
#include <asm/sections.h>
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
@ -445,16 +444,36 @@ static int __init dummy_numa_init(void)
return 0;
}
#ifdef CONFIG_ACPI_NUMA
static int __init arch_acpi_numa_init(void)
{
int ret;
ret = acpi_numa_init();
if (ret) {
pr_info("Failed to initialise from firmware\n");
return ret;
}
return srat_disabled() ? -EINVAL : 0;
}
#else
static int __init arch_acpi_numa_init(void)
{
return -EOPNOTSUPP;
}
#endif
/**
* arm64_numa_init() - Initialize NUMA
* arch_numa_init() - Initialize NUMA
*
* Try each configured NUMA initialization method until one succeeds. The
* last fallback is dummy single node config encompassing whole memory.
*/
void __init arm64_numa_init(void)
void __init arch_numa_init(void)
{
if (!numa_off) {
if (!acpi_disabled && !numa_init(arm64_acpi_numa_init))
if (!acpi_disabled && !numa_init(arch_acpi_numa_init))
return;
if (acpi_disabled && !numa_init(of_numa_init))
return;