From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Fri, 26 Nov 2010 20:12:12 +0000 (+0000)
Subject: ARM: pgtable: group pgd functions and data together
X-Git-Tag: firefly_0821_release~7613^2~1828^2~2^3~20
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4eec4b1396ac6a6a602b4521d40e9cf596ab776d;p=firefly-linux-kernel-4.4.55.git

ARM: pgtable: group pgd functions and data together

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 3a53d495874b..8ee9dce10b83 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -276,6 +276,29 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 extern struct page *empty_zero_page;
 #define ZERO_PAGE(vaddr)	(empty_zero_page)
 
+
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+
+/* to find an entry in a page-table-directory */
+#define pgd_index(addr)		((addr) >> PGDIR_SHIFT)
+
+#define pgd_offset(mm, addr)	((mm)->pgd + pgd_index(addr))
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(addr)	pgd_offset(&init_mm, addr)
+
+/*
+ * The "pgd_xxx()" functions here are trivial for a folded two-level
+ * setup: the pgd is never bad, and a pmd always exists (as it's folded
+ * into the pgd entry)
+ */
+#define pgd_none(pgd)		(0)
+#define pgd_bad(pgd)		(0)
+#define pgd_present(pgd)	(1)
+#define pgd_clear(pgdp)		do { } while (0)
+#define set_pgd(pgd,pgdp)	do { } while (0)
+
+
 #define pte_pfn(pte)		(pte_val(pte) >> PAGE_SHIFT)
 #define pfn_pte(pfn,prot)	(__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 
@@ -382,25 +405,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
  */
 #define mk_pte(page,prot)	pfn_pte(page_to_pfn(page),prot)
 
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-#define pgd_none(pgd)		(0)
-#define pgd_bad(pgd)		(0)
-#define pgd_present(pgd)	(1)
-#define pgd_clear(pgdp)		do { } while (0)
-#define set_pgd(pgd,pgdp)	do { } while (0)
-
-/* to find an entry in a page-table-directory */
-#define pgd_index(addr)		((addr) >> PGDIR_SHIFT)
-
-#define pgd_offset(mm, addr)	((mm)->pgd+pgd_index(addr))
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(addr)	pgd_offset(&init_mm, addr)
-
 /* Find an entry in the second-level page table.. */
 #define pmd_offset(dir, addr)	((pmd_t *)(dir))
 
@@ -414,8 +418,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 	return pte;
 }
 
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
 /*
  * Encode and decode a swap entry.  Swap entries are stored in the Linux
  * page tables as follows: