Subject: [PATCH v12 01/14] ARM: mm: add missing pud_page define to 2-level page tables

From: Nicholas Piggin <[email-masked]>
Date: Tue, 2 Feb 2021 21:05:02 +1000

ARM uses its own PMD folding scheme which is missing pud_page which
should just pass through to pmd_page. Move this from the 3-level
page table to common header.

Cc: Russell King <[email-masked]>
Cc: Ding Tianhong <[email-masked]>
Cc: [email-masked]
Signed-off-by: Nicholas Piggin <[email-masked]>
---
 arch/arm/include/asm/pgtable-3level.h | 2 --
 arch/arm/include/asm/pgtable.h        | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 2b85d175e999..d4edab51a77c 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -186,8 +186,6 @@ static inline pte_t pte_mkspecial(pte_t pte)
 
 #define pmd_write(pmd)		(pmd_isclear((pmd), L_PMD_SECT_RDONLY))
 #define pmd_dirty(pmd)		(pmd_isset((pmd), L_PMD_SECT_DIRTY))
-#define pud_page(pud)		pmd_page(__pmd(pud_val(pud)))
-#define pud_write(pud)		pmd_write(__pmd(pud_val(pud)))
 
 #define pmd_hugewillfault(pmd)	(!pmd_young(pmd) || !pmd_write(pmd))
 #define pmd_thp_or_huge(pmd)	(pmd_huge(pmd) || pmd_trans_huge(pmd))
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index c02f24400369..d63a5bb6bd0c 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -166,6 +166,9 @@ extern struct page *empty_zero_page;
 
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
+#define pud_page(pud)		pmd_page(__pmd(pud_val(pud)))
+#define pud_write(pud)		pmd_write(__pmd(pud_val(pud)))
+
 #define pmd_none(pmd)		(!pmd_val(pmd))
 
 static inline pte_t *pmd_page_vaddr(pmd_t pmd)
-- 
2.23.0