[PATCH v12 09/22] sparc: mm: Add p?d_leaf() definitions

From: Steven Price
Date: Fri Oct 18 2019 - 06:15:00 EST

walk_page_range() is going to be allowed to walk page tables other than
those of user space. For this it needs to know when it has reached a
'leaf' entry in the page tables. This information is provided by the
p?d_leaf() functions/macros.

For sparc 64 bit, pmd_large() and pud_large() are already provided, so
add macros to provide the p?d_leaf names required by the generic code.

CC: "David S. Miller" <davem@xxxxxxxxxxxxx>
CC: sparclinux@xxxxxxxxxxxxxxx
Signed-off-by: Steven Price <steven.price@xxxxxxx>
arch/sparc/include/asm/pgtable_64.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 6ae8016ef4ec..43206652eaf5 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -683,6 +683,7 @@ static inline unsigned long pte_special(pte_t pte)
return pte_val(pte) & _PAGE_SPECIAL;

+#define pmd_leaf pmd_large
static inline unsigned long pmd_large(pmd_t pmd)
pte_t pte = __pte(pmd_val(pmd));
@@ -867,6 +868,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
/* only used by the stubbed out hugetlb gup code, should never be called */
#define pgd_page(pgd) NULL

+#define pud_leaf pud_large
static inline unsigned long pud_large(pud_t pud)
pte_t pte = __pte(pud_val(pud));