[PATCH v5 1/5] arm64, numa: Change the numa init functions name to be generic
Atish Patra
atish.patra at wdc.com
Wed Nov 18 19:38:25 EST 2020
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 at wdc.com>
Acked-by: Catalin Marinas <catalin.marinas at arm.com>
---
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
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