1 files changed, 20 insertions, 63 deletions

diff --git a/arch/loongarch/kernel/numa.c b/arch/loongarch/kernel/numa.c
index d6e73e8f9c0b..8b89898e20df 100644
--- a/arch/loongarch/kernel/numa.c
+++ b/arch/loongarch/kernel/numa.c
@@ -158,35 +158,9 @@ static void __init node_mem_init(unsigned int node)
 
 #ifdef CONFIG_ACPI_NUMA
 
-/*
- * add_numamem_region
- *
- * Add a uasable memory region described by BIOS. The
- * routine gets each intersection between BIOS's region
- * and node's region, and adds them into node's memblock
- * pool.
- *
- */
-static void __init add_numamem_region(u64 start, u64 end, u32 type)
-{
-	u32 node = pa_to_nid(start);
-	u64 size = end - start;
-	static unsigned long num_physpages;
-
-	if (start >= end) {
-		pr_debug("Invalid region: %016llx-%016llx\n", start, end);
-		return;
-	}
-
-	num_physpages += (size >> PAGE_SHIFT);
-	pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
-		node, type, start, size);
-	pr_info("       start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
-		start >> PAGE_SHIFT, end >> PAGE_SHIFT, num_physpages);
-	memblock_set_node(start, size, &memblock.memory, node);
-}
+static unsigned long num_physpages;
 
-static void __init init_node_memblock(void)
+static void __init info_node_memblock(void)
 {
 	u32 mem_type;
 	u64 mem_end, mem_start, mem_size;
@@ -206,12 +180,20 @@ static void __init init_node_memblock(void)
 		case EFI_BOOT_SERVICES_DATA:
 		case EFI_PERSISTENT_MEMORY:
 		case EFI_CONVENTIONAL_MEMORY:
-			add_numamem_region(mem_start, mem_end, mem_type);
+			num_physpages += (mem_size >> PAGE_SHIFT);
+			pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
+				(u32)pa_to_nid(mem_start), mem_type, mem_start, mem_size);
+			pr_info("       start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
+				mem_start >> PAGE_SHIFT, mem_end >> PAGE_SHIFT, num_physpages);
 			break;
 		case EFI_PAL_CODE:
 		case EFI_UNUSABLE_MEMORY:
 		case EFI_ACPI_RECLAIM_MEMORY:
-			add_numamem_region(mem_start, mem_end, mem_type);
+			num_physpages += (mem_size >> PAGE_SHIFT);
+			pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
+				(u32)pa_to_nid(mem_start), mem_type, mem_start, mem_size);
+			pr_info("       start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
+				mem_start >> PAGE_SHIFT, mem_end >> PAGE_SHIFT, num_physpages);
 			fallthrough;
 		case EFI_RESERVED_TYPE:
 		case EFI_RUNTIME_SERVICES_CODE:
@@ -249,22 +231,16 @@ int __init init_numa_memory(void)
 	for (i = 0; i < NR_CPUS; i++)
 		set_cpuid_to_node(i, NUMA_NO_NODE);
 
-	numa_reset_distance();
-	nodes_clear(numa_nodes_parsed);
-	nodes_clear(node_possible_map);
-	nodes_clear(node_online_map);
-	WARN_ON(memblock_clear_hotplug(0, PHYS_ADDR_MAX));
-
 	/* Parse SRAT and SLIT if provided by firmware. */
-	ret = acpi_disabled ? fake_numa_init() : acpi_numa_init();
+	if (!acpi_disabled)
+		ret = numa_memblks_init(acpi_numa_init, false);
+	else
+		ret = numa_memblks_init(fake_numa_init, false);
+
 	if (ret < 0)
 		return ret;
 
-	node_possible_map = numa_nodes_parsed;
-	if (WARN_ON(nodes_empty(node_possible_map)))
-		return -EINVAL;
-
-	init_node_memblock();
+	info_node_memblock();
 	if (!memblock_validate_numa_coverage(SZ_1M))
 		return -EINVAL;
 
@@ -272,7 +248,8 @@ int __init init_numa_memory(void)
 		node_mem_init(node);
 		node_set_online(node);
 	}
-	max_low_pfn = PHYS_PFN(memblock_end_of_DRAM());
+	max_pfn = PFN_DOWN(memblock_end_of_DRAM());
+	max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
 
 	setup_nr_node_ids();
 	loongson_sysconf.nr_nodes = nr_node_ids;
@@ -283,26 +260,6 @@ int __init init_numa_memory(void)
 
 #endif
 
-void __init paging_init(void)
-{
-	unsigned int node;
-	unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
-	for_each_online_node(node) {
-		unsigned long start_pfn, end_pfn;
-
-		get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
-
-		if (end_pfn > max_low_pfn)
-			max_low_pfn = end_pfn;
-	}
-#ifdef CONFIG_ZONE_DMA32
-	zones_size[ZONE_DMA32] = MAX_DMA32_PFN;
-#endif
-	zones_size[ZONE_NORMAL] = max_low_pfn;
-	free_area_init(zones_size);
-}
-
 int pcibus_to_node(struct pci_bus *bus)
 {
 	return dev_to_node(&bus->dev);