powerpc/mm: move some nohash pte helpers in nohash/[32:64]/pgtable.h

chleroy · mpe · commit aa9cd505e39d · 2018-10-14T18:04:09.000+11:00
In order to allow their use in nohash/32/pgtable.h, we have to move the
following helpers in nohash/[32:64]/pgtable.h:
- pte_mkwrite()
- pte_mkdirty()
- pte_mkyoung()
- pte_wrprotect()

Reviewed-by: Aneesh Kumar K.V &lt;aneesh.kumar@linux.ibm.com&gt;
Signed-off-by: Christophe Leroy &lt;christophe.leroy@c-s.fr&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -136,6 +136,34 @@ extern int icache_44x_need_flush;
 #define pte_clear(mm, addr, ptep) \
 	do { pte_update(ptep, ~0, 0); } while (0)
 
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+	pte_basic_t ptev;
+
+	ptev = pte_val(pte) & ~_PAGE_RO;
+	ptev |= _PAGE_RW;
+	return __pte(ptev);
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_DIRTY);
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_ACCESSED);
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+	pte_basic_t ptev;
+
+	ptev = pte_val(pte) & ~(_PAGE_RW | _PAGE_HWWRITE);
+	ptev |= _PAGE_RO;
+	return __pte(ptev);
+}
+
 #define pmd_none(pmd)		(!pmd_val(pmd))
 #define	pmd_bad(pmd)		(pmd_val(pmd) & _PMD_BAD)
 #define	pmd_present(pmd)	(pmd_val(pmd) & _PMD_PRESENT_MASK)
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -94,6 +94,26 @@
 #ifndef __ASSEMBLY__
 /* pte_clear moved to later in this file */
 
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_RW);
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_DIRTY);
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+	return __pte(pte_val(pte) | _PAGE_ACCESSED);
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+	return __pte(pte_val(pte) & ~_PAGE_RW);
+}
+
 #define PMD_BAD_BITS		(PTE_TABLE_SIZE-1)
 #define PUD_BAD_BITS		(PMD_TABLE_SIZE-1)
 
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -77,15 +77,6 @@ static inline unsigned long pte_pfn(pte_t pte)	{
 	return pte_val(pte) >> PTE_RPN_SHIFT; }
 
 /* Generic modifiers for PTE bits */
-static inline pte_t pte_wrprotect(pte_t pte)
-{
-	pte_basic_t ptev;
-
-	ptev = pte_val(pte) & ~(_PAGE_RW | _PAGE_HWWRITE);
-	ptev |= _PAGE_RO;
-	return __pte(ptev);
-}
-
 static inline pte_t pte_mkclean(pte_t pte)
 {
 	return __pte(pte_val(pte) & ~(_PAGE_DIRTY | _PAGE_HWWRITE));
@@ -96,25 +87,6 @@ static inline pte_t pte_mkold(pte_t pte)
 	return __pte(pte_val(pte) & ~_PAGE_ACCESSED);
 }
 
-static inline pte_t pte_mkwrite(pte_t pte)
-{
-	pte_basic_t ptev;
-
-	ptev = pte_val(pte) & ~_PAGE_RO;
-	ptev |= _PAGE_RW;
-	return __pte(ptev);
-}
-
-static inline pte_t pte_mkdirty(pte_t pte)
-{
-	return __pte(pte_val(pte) | _PAGE_DIRTY);
-}
-
-static inline pte_t pte_mkyoung(pte_t pte)
-{
-	return __pte(pte_val(pte) | _PAGE_ACCESSED);
-}
-
 static inline pte_t pte_mkspecial(pte_t pte)
 {
 	return __pte(pte_val(pte) | _PAGE_SPECIAL);
