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 <[email protected]> Acked-by: Catalin Marinas <[email protected]> --- arch/arm64/include/asm/numa.h | 4 ++-- arch/arm64/kernel/acpi_numa.c | 12 ------------ arch/arm64/mm/init.c | 4 ++-- arch/arm64/mm/numa.c | 27 +++++++++++++++++++++++---- 4 files changed, 27 insertions(+), 20 deletions(-) diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h index dd870390d639..ffc1dcdf1871 100644 --- a/arch/arm64/include/asm/numa.h +++ b/arch/arm64/include/asm/numa.h @@ -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 */ diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c index 7ff800045434..fdfecf0991ce 100644 --- a/arch/arm64/kernel/acpi_numa.c +++ b/arch/arm64/kernel/acpi_numa.c @@ -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; -} diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 095540667f0f..977b47f6815a 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -407,10 +407,10 @@ 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. */ diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index a8303bc6b62a..0dae54ce7d43 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -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; -- 2.25.1
