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-rw-r--r--arch/loongarch/kernel/mem.c7
-rw-r--r--arch/loongarch/kernel/numa.c23
-rw-r--r--arch/loongarch/kernel/setup.c5
-rw-r--r--arch/loongarch/mm/init.c2
4 files changed, 7 insertions, 30 deletions
diff --git a/arch/loongarch/kernel/mem.c b/arch/loongarch/kernel/mem.c
index aed901c57fb4..8ab1ffedc52c 100644
--- a/arch/loongarch/kernel/mem.c
+++ b/arch/loongarch/kernel/mem.c
@@ -13,7 +13,7 @@
void __init memblock_init(void)
{
u32 mem_type;
- u64 mem_start, mem_end, mem_size;
+ u64 mem_start, mem_size;
efi_memory_desc_t *md;
/* Parse memory information */
@@ -21,7 +21,6 @@ void __init memblock_init(void)
mem_type = md->type;
mem_start = md->phys_addr;
mem_size = md->num_pages << EFI_PAGE_SHIFT;
- mem_end = mem_start + mem_size;
switch (mem_type) {
case EFI_LOADER_CODE:
@@ -31,8 +30,6 @@ void __init memblock_init(void)
case EFI_PERSISTENT_MEMORY:
case EFI_CONVENTIONAL_MEMORY:
memblock_add(mem_start, mem_size);
- if (max_low_pfn < (mem_end >> PAGE_SHIFT))
- max_low_pfn = mem_end >> PAGE_SHIFT;
break;
case EFI_PAL_CODE:
case EFI_UNUSABLE_MEMORY:
@@ -49,6 +46,8 @@ void __init memblock_init(void)
}
}
+ max_pfn = PFN_DOWN(memblock_end_of_DRAM());
+ max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
memblock_set_current_limit(PFN_PHYS(max_low_pfn));
/* Reserve the first 2MB */
diff --git a/arch/loongarch/kernel/numa.c b/arch/loongarch/kernel/numa.c
index d6e73e8f9c0b..ab9c660526a3 100644
--- a/arch/loongarch/kernel/numa.c
+++ b/arch/loongarch/kernel/numa.c
@@ -272,7 +272,8 @@ 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 +284,6 @@ 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);
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index 69c17d162fff..25a87378e48e 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -294,8 +294,6 @@ static void __init fdt_setup(void)
early_init_dt_scan(fdt_pointer, __pa(fdt_pointer));
early_init_fdt_reserve_self();
-
- max_low_pfn = PFN_PHYS(memblock_end_of_DRAM());
#endif
}
@@ -390,7 +388,8 @@ static void __init check_kernel_sections_mem(void)
static void __init arch_mem_init(char **cmdline_p)
{
/* Recalculate max_low_pfn for "mem=xxx" */
- max_pfn = 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);
if (usermem)
pr_info("User-defined physical RAM map overwrite\n");
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index c3e4586a7975..6bfd4b8dad1b 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -60,7 +60,6 @@ int __ref page_is_ram(unsigned long pfn)
return memblock_is_memory(addr) && !memblock_is_reserved(addr);
}
-#ifndef CONFIG_NUMA
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
@@ -72,7 +71,6 @@ void __init paging_init(void)
free_area_init(max_zone_pfns);
}
-#endif /* !CONFIG_NUMA */
void __ref free_initmem(void)
{