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>

1 files changed, 23 insertions, 4 deletions

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;