[RFC/RFT PATCH v2 2/5] arm64, numa: Change the numa init function name to be generic

Atish Patra
2020-09-12T01:35:39Z

As we are using generic numa implementation code, modify the init function
name to indicate that generic implementation.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
arch/arm64/kernel/acpi_numa.c | 13 -------------
arch/arm64/mm/init.c | 4 ++--
drivers/base/arch_numa.c | 29 ++++++++++++++++++++++++++---
include/asm-generic/numa.h | 4 ++--
4 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
index 7ff800045434..96502ff92af5 100644
--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -117,16 +117,3 @@ 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 481d22c32a2e..93b660229e1d 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -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.
*/
diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index 73f8b49d485c..a4039dcabd3e 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -13,7 +13,9 @@
#include <linux/module.h>
#include <linux/of.h>

+#ifdef CONFIG_ACPI_NUMA
#include <asm/acpi.h>
+#endif
#include <asm/sections.h>

struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
@@ -444,16 +446,37 @@ static int __init dummy_numa_init(void)
return 0;
}

+#ifdef CONFIG_ACPI_NUMA
+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
+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 encomapssing 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;
diff --git a/include/asm-generic/numa.h b/include/asm-generic/numa.h
index 2718d5a6ff03..e7962db4ba44 100644
--- a/include/asm-generic/numa.h
+++ b/include/asm-generic/numa.h
@@ -27,7 +27,7 @@ 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);
@@ -41,7 +41,7 @@ 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 */
--
2.24.0