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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-12-08 18:02:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-12-08 18:02:04 +0000
commit6ae25a5b9d7ba86d6ac19c403dfa57dae6caa73d (patch)
tree41d04269f268d6162e5f1866496dd42fbc79d2a4 /arch/arm/include/asm/pgtable.h
parentMerge branch 'kexec/idmap' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into devel-stable (diff)
parentARM: LPAE: Add the Kconfig entries (diff)
downloadlinux-dev-6ae25a5b9d7ba86d6ac19c403dfa57dae6caa73d.tar.xz
linux-dev-6ae25a5b9d7ba86d6ac19c403dfa57dae6caa73d.zip
Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux into devel-stable
Conflicts: arch/arm/mm/ioremap.c
Diffstat (limited to 'arch/arm/include/asm/pgtable.h')
-rw-r--r--arch/arm/include/asm/pgtable.h43
1 files changed, 6 insertions, 37 deletions
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index a784859cc7a9..3f2f0eb76211 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -11,19 +11,24 @@
#define _ASMARM_PGTABLE_H
#include <linux/const.h>
-#include <asm-generic/4level-fixup.h>
#include <asm/proc-fns.h>
#ifndef CONFIG_MMU
+#include <asm-generic/4level-fixup.h>
#include "pgtable-nommu.h"
#else
+#include <asm-generic/pgtable-nopud.h>
#include <asm/memory.h>
#include <asm/pgtable-hwdef.h>
+#ifdef CONFIG_ARM_LPAE
+#include <asm/pgtable-3level.h>
+#else
#include <asm/pgtable-2level.h>
+#endif
/*
* Just any arbitrary offset to the start of the vmalloc VM area: the
@@ -164,39 +169,8 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
/* 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 set_pud(pud,pudp) do { } while (0)
-
-
-/* Find an entry in the second-level page table.. */
-#define pmd_offset(dir, addr) ((pmd_t *)(dir))
-
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_present(pmd) (pmd_val(pmd))
-#define pmd_bad(pmd) (pmd_val(pmd) & 2)
-
-#define copy_pmd(pmdpd,pmdps) \
- do { \
- pmdpd[0] = pmdps[0]; \
- pmdpd[1] = pmdps[1]; \
- flush_pmd_entry(pmdpd); \
- } while (0)
-
-#define pmd_clear(pmdp) \
- do { \
- pmdp[0] = __pmd(0); \
- pmdp[1] = __pmd(0); \
- clean_pmd_entry(pmdp); \
- } while (0)
static inline pte_t *pmd_page_vaddr(pmd_t pmd)
{
@@ -205,10 +179,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pmd_page(pmd) pfn_to_page(__phys_to_pfn(pmd_val(pmd) & PHYS_MASK))
-/* we don't need complex calculations here as the pmd is folded into the pgd */
-#define pmd_addr_end(addr,end) (end)
-
-
#ifndef CONFIG_HIGHPTE
#define __pte_map(pmd) pmd_page_vaddr(*(pmd))
#define __pte_unmap(pte) do { } while (0)
@@ -230,7 +200,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
#define mk_pte(page,prot) pfn_pte(page_to_pfn(page), prot)
-#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
#define pte_clear(mm,addr,ptep) set_pte_ext(ptep, __pte(0), 0)
#if __LINUX_ARM_ARCH__ < 6