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Subject[PATCH v3 10/34] microblaze: mm: Add p?d_large() definitions
Date
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_large() functions/macros.

For microblaze, we don't support large pages, so add stubs returning 0.

CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Steven Price <steven.price@arm.com>
---
arch/microblaze/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 142d3f004848..044ea7dbb4cc 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -303,6 +303,7 @@ extern unsigned long empty_zero_page[1024];
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_bad(pmd) ((pmd_val(pmd) & _PMD_PRESENT) == 0)
#define pmd_present(pmd) ((pmd_val(pmd) & _PMD_PRESENT) != 0)
+#define pmd_large(pmd) (0)
#define pmd_clear(pmdp) do { pmd_val(*(pmdp)) = 0; } while (0)

#define pte_page(x) (mem_map + (unsigned long) \
@@ -323,6 +324,7 @@ extern unsigned long empty_zero_page[1024];
static inline int pgd_none(pgd_t pgd) { return 0; }
static inline int pgd_bad(pgd_t pgd) { return 0; }
static inline int pgd_present(pgd_t pgd) { return 1; }
+static inline int pgd_large(pgd_t pgd) { return 0; }
#define pgd_clear(xp) do { } while (0)
#define pgd_page(pgd) \
((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
--
2.20.1
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