[POWERPC] Start factoring pgtable-ppc32.h and pgtable-ppc64.h

This factors some things defined in both pgtable-ppc32.h and
pgtable-ppc64.h into the common part of asm-powerpc/pgtable.h.  These
are all things which have essentially identical definitions, and which
by their nature are very unlikely ever to need different definitions
in the two cases.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 22 deletions

diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h
index 63c535d02535..5b14536d4af8 100644
--- a/include/asm-powerpc/pgtable-ppc32.h
+++ b/include/asm-powerpc/pgtable-ppc32.h
@@ -6,11 +6,7 @@
 #ifndef __ASSEMBLY__
 #include <linux/sched.h>
 #include <linux/threads.h>
-#include <asm/processor.h>              /* For TASK_SIZE */
-#include <asm/mmu.h>
-#include <asm/page.h>
 #include <asm/io.h>                     /* For sub-arch specific PPC_PIN_SIZE */
-struct mm_struct;
 
 extern unsigned long va_to_phys(unsigned long address);
 extern pte_t *va_to_pte(unsigned long address);
@@ -488,14 +484,6 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
 #define pfn_pte(pfn, prot)      __pte(((pte_basic_t)(pfn) << PFN_SHIFT_OFFSET) |\
                                         pgprot_val(prot))
 #define mk_pte(page, prot)      pfn_pte(page_to_pfn(page), prot)
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern unsigned long empty_zero_page[1024];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-
 #endif /* __ASSEMBLY__ */
 
 #define pte_none(pte)           ((pte_val(pte) & ~_PTE_NONE_MASK) == 0)
@@ -730,10 +718,6 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 #define pte_unmap(pte)          kunmap_atomic(pte, KM_PTE0)
 #define pte_unmap_nested(pte)   kunmap_atomic(pte, KM_PTE1)
 
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-extern void paging_init(void);
-
 /*
  * Encode and decode a swap entry.
  * Note that the bits we use in a PTE for representing a swap entry
@@ -751,12 +735,6 @@ extern void paging_init(void);
 #define pte_to_pgoff(pte)       (pte_val(pte) >> 3)
 #define pgoff_to_pte(off)       ((pte_t) { ((off) << 3) | _PAGE_FILE })
 
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define kern_addr_valid(addr)   (1)
-
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)         \
-                remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /*
  * No page table caches to initialise
  */