summaryrefslogtreecommitdiff
path: root/arch/arm64/mm/hugetlbpage.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm64/mm/hugetlbpage.c')
-rw-r--r--arch/arm64/mm/hugetlbpage.c33
1 files changed, 22 insertions, 11 deletions
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index f58ea503ad01..28cbc22d7e30 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -429,6 +429,27 @@ void huge_ptep_clear_flush(struct vm_area_struct *vma,
clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig);
}
+static void __init add_huge_page_size(unsigned long size)
+{
+ if (size_to_hstate(size))
+ return;
+
+ hugetlb_add_hstate(ilog2(size) - PAGE_SHIFT);
+}
+
+static int __init hugetlbpage_init(void)
+{
+#ifdef CONFIG_ARM64_4K_PAGES
+ add_huge_page_size(PUD_SIZE);
+#endif
+ add_huge_page_size(PMD_SIZE * CONT_PMDS);
+ add_huge_page_size(PMD_SIZE);
+ add_huge_page_size(PAGE_SIZE * CONT_PTES);
+
+ return 0;
+}
+arch_initcall(hugetlbpage_init);
+
static __init int setup_hugepagesz(char *opt)
{
unsigned long ps = memparse(opt, &opt);
@@ -440,7 +461,7 @@ static __init int setup_hugepagesz(char *opt)
case PMD_SIZE * CONT_PMDS:
case PMD_SIZE:
case PAGE_SIZE * CONT_PTES:
- hugetlb_add_hstate(ilog2(ps) - PAGE_SHIFT);
+ add_huge_page_size(ps);
return 1;
}
@@ -449,13 +470,3 @@ static __init int setup_hugepagesz(char *opt)
return 0;
}
__setup("hugepagesz=", setup_hugepagesz);
-
-#ifdef CONFIG_ARM64_64K_PAGES
-static __init int add_default_hugepagesz(void)
-{
- if (size_to_hstate(CONT_PTES * PAGE_SIZE) == NULL)
- hugetlb_add_hstate(CONT_PTE_SHIFT);
- return 0;
-}
-arch_initcall(add_default_hugepagesz);
-#endif