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authorSam Ravnborg <sam@ravnborg.org>2008-11-17 05:08:19 +0100
committerDavid S. Miller <davem@davemloft.net>2008-12-04 18:16:58 +0100
commitc37ddd936d96b46cf2bb17e7b1a18b2bd24ec1fb (patch)
treedff3bc2e890a4c1aa12bbce851be9eea4caa007f /arch/sparc/mm/generic.c
parentsparc64: unify arch/sparc64/oprofile/ (diff)
downloadlinux-c37ddd936d96b46cf2bb17e7b1a18b2bd24ec1fb.tar.xz
linux-c37ddd936d96b46cf2bb17e7b1a18b2bd24ec1fb.zip
sparc: prepare mm/ for unification
- rename files where sparc64 has similar files to _32.c - Restructure Makefile - Sneak in -Werror as we have for sparc64 Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm/generic.c')
-rw-r--r--arch/sparc/mm/generic.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/sparc/mm/generic.c b/arch/sparc/mm/generic.c
deleted file mode 100644
index a289261da9fd..000000000000
--- a/arch/sparc/mm/generic.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * generic.c: Generic Sparc mm routines that are not dependent upon
- * MMU type but are Sparc specific.
- *
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/pagemap.h>
-
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-
-/* Remap IO memory, the same way as remap_pfn_range(), but use
- * the obio memory space.
- *
- * They use a pgprot that sets PAGE_IO and does not check the
- * mem_map table as this is independent of normal memory.
- */
-static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, unsigned long address, unsigned long size,
- unsigned long offset, pgprot_t prot, int space)
-{
- unsigned long end;
-
- address &= ~PMD_MASK;
- end = address + size;
- if (end > PMD_SIZE)
- end = PMD_SIZE;
- do {
- set_pte_at(mm, address, pte, mk_pte_io(offset, prot, space));
- address += PAGE_SIZE;
- offset += PAGE_SIZE;
- pte++;
- } while (address < end);
-}
-
-static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned long address, unsigned long size,
- unsigned long offset, pgprot_t prot, int space)
-{
- unsigned long end;
-
- address &= ~PGDIR_MASK;
- end = address + size;
- if (end > PGDIR_SIZE)
- end = PGDIR_SIZE;
- offset -= address;
- do {
- pte_t * pte = pte_alloc_map(mm, pmd, address);
- if (!pte)
- return -ENOMEM;
- io_remap_pte_range(mm, pte, address, end - address, address + offset, prot, space);
- address = (address + PMD_SIZE) & PMD_MASK;
- pmd++;
- } while (address < end);
- return 0;
-}
-
-int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
- unsigned long pfn, unsigned long size, pgprot_t prot)
-{
- int error = 0;
- pgd_t * dir;
- unsigned long beg = from;
- unsigned long end = from + size;
- struct mm_struct *mm = vma->vm_mm;
- int space = GET_IOSPACE(pfn);
- unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT;
-
- /* See comment in mm/memory.c remap_pfn_range */
- vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
- vma->vm_pgoff = (offset >> PAGE_SHIFT) |
- ((unsigned long)space << 28UL);
-
- offset -= from;
- dir = pgd_offset(mm, from);
- flush_cache_range(vma, beg, end);
-
- while (from < end) {
- pmd_t *pmd = pmd_alloc(mm, dir, from);
- error = -ENOMEM;
- if (!pmd)
- break;
- error = io_remap_pmd_range(mm, pmd, from, end - from, offset + from, prot, space);
- if (error)
- break;
- from = (from + PGDIR_SIZE) & PGDIR_MASK;
- dir++;
- }
-
- flush_tlb_range(vma, beg, end);
- return error;
-}