[PATCH v9 4/7] powerpc: mm: Default p{m,u}d_pte implementations

[Rohan McLure]

For 32-bit systems which have no usecases for p{m,u}d_pte() prior to
page table checking, implement default stubs.

Signed-off-by: Rohan McLure <rmclure at linux.ibm.com>
---
v9: New patch
---
 arch/powerpc/include/asm/book3s/64/pgtable.h |  3 +++
 arch/powerpc/include/asm/nohash/64/pgtable.h |  2 ++
 arch/powerpc/include/asm/pgtable.h           | 17 +++++++++++++++++
 3 files changed, 22 insertions(+)

diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 8fdb7667c509..2454174b26cb 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -887,6 +887,8 @@ static inline int pud_present(pud_t pud)
 
 extern struct page *pud_page(pud_t pud);
 extern struct page *pmd_page(pmd_t pmd);
+
+#define pud_pte pud_pte
 static inline pte_t pud_pte(pud_t pud)
 {
 	return __pte_raw(pud_raw(pud));
@@ -1043,6 +1045,7 @@ static inline void __kernel_map_pages(struct page *page, int numpages, int enabl
 }
 #endif
 
+#define pmd_pte pmd_pte
 static inline pte_t pmd_pte(pmd_t pmd)
 {
 	return __pte_raw(pmd_raw(pmd));
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index f58cbebde26e..09a34fe196ae 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -93,6 +93,7 @@ static inline void pmd_clear(pmd_t *pmdp)
 	*pmdp = __pmd(0);
 }
 
+#define pmd_pte pmd_pte
 static inline pte_t pmd_pte(pmd_t pmd)
 {
 	return __pte(pmd_val(pmd));
@@ -134,6 +135,7 @@ static inline pmd_t *pud_pgtable(pud_t pud)
 
 extern struct page *pud_page(pud_t pud);
 
+#define pud_pte pud_pte
 static inline pte_t pud_pte(pud_t pud)
 {
 	return __pte(pud_val(pud));
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 9c0f2151f08f..d7d0f47760d3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -233,6 +233,23 @@ static inline int pud_pfn(pud_t pud)
 }
 #endif
 
+#ifndef pmd_pte
+#define pmd_pte pmd_pte
+static inline pte_t pmd_pte(pmd_t pmd)
+{
+	WARN_ONCE(1, "pmd: platform does not use pmd entries directly");
+	return __pte(pmd_val(pmd));
+}
+#endif
+
+#ifndef pud_pte
+#define pud_pte pud_pte
+static inline pte_t pud_pte(pud_t pud)
+{
+	WARN_ONCE(1, "pud: platform does not use pud entries directly");
+	return __pte(pud_val(pud));
+}
+#endif
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_PGTABLE_H */
-- 
2.43.0