1 files changed, 13 insertions, 46 deletions

diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 9451dce3a55..3f2f0eb7621 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -11,20 +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 <mach/vmalloc.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
@@ -33,14 +37,16 @@
  * any out-of-bounds memory accesses will hopefully be caught.
  * The vmalloc() routines leaves a hole of 4kB between each vmalloced
  * area for the same reason. ;)
- *
- * Note that platforms may override VMALLOC_START, but they must provide
- * VMALLOC_END.  VMALLOC_END defines the (exclusive) limit of this space,
- * which may not overlap IO space.
  */
-#ifndef VMALLOC_START
 #define VMALLOC_OFFSET          (8*1024*1024)
 #define VMALLOC_START           (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+#define VMALLOC_END             0xff000000UL
+
+/* This is a temporary hack until shmobile's DMA area size is sorted out */
+#ifdef CONFIG_ARCH_SHMOBILE
+#warning "SH-Mobile's consistent DMA size conflicts with VMALLOC_END by 144MB"
+#undef VMALLOC_END
+#define VMALLOC_END             0xF6000000UL
 #endif
 
 #define LIBRARY_TEXT_START      0x0c000000
@@ -163,39 +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)
 {
@@ -204,10 +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)
@@ -229,7 +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
@@ -346,9 +316,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 
 #define pgtable_cache_init() do { } while (0)
 
-void identity_mapping_add(pgd_t *, unsigned long, unsigned long);
-void identity_mapping_del(pgd_t *, unsigned long, unsigned long);
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* CONFIG_MMU */