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[SPARC]: Kill io_remap_page_range()

Browse Source 
It's been deprecated long enough and there are no in-tree
users any longer.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2005-09-01 21:51:26 -07:00
parent 8a36895c0d
commit a7a6cac204
7 changed files with 1 additions and 100 deletions
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1
arch/sparc/kernel/sparc_ksyms.c
View File

@ -175,7 +175,6 @@ EXPORT_SYMBOL(set_auxio);
EXPORT_SYMBOL(get_auxio);
#endif
EXPORT_SYMBOL(request_fast_irq);
EXPORT_SYMBOL(io_remap_page_range);
EXPORT_SYMBOL(io_remap_pfn_range);
/* P3: iounit_xxx may be needed, sun4d users */
/* EXPORT_SYMBOL(iounit_map_dma_init); */

57
arch/sparc/mm/generic.c
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@ -16,31 +16,6 @@
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
static inline void forget_pte(pte_t page)
{
#if 0 /* old 2.4 code */
if (pte_none(page))
return;
if (pte_present(page)) {
unsigned long pfn = pte_pfn(page);
struct page *ptpage;
if (!pfn_valid(pfn))
return;
ptpage = pfn_to_page(pfn);
if (PageReserved(ptpage))
return;
page_cache_release(ptpage);
return;
}
swap_free(pte_to_swp_entry(page));
#else
if (!pte_none(page)) {
printk("forget_pte: old mapping existed!\n");
BUG();
}
#endif
}
/* Remap IO memory, the same way as remap_pfn_range(), but use
* the obio memory space.
*
@ -60,7 +35,6 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, unsigne
pte_t oldpage = *pte;
pte_clear(mm, address, pte);
set_pte(pte, mk_pte_io(offset, prot, space));
forget_pte(oldpage);
address += PAGE_SIZE;
offset += PAGE_SIZE;
pte++;
@ -88,37 +62,6 @@ static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned
return 0;
}
int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset, unsigned long size, pgprot_t prot, int space)
{
int error = 0;
pgd_t * dir;
unsigned long beg = from;
unsigned long end = from + size;
struct mm_struct *mm = vma->vm_mm;
prot = __pgprot(pg_iobits);
offset -= from;
dir = pgd_offset(mm, from);
flush_cache_range(vma, beg, end);
spin_lock(&mm->page_table_lock);
while (from < end) {
pmd_t *pmd = pmd_alloc(current->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++;
}
spin_unlock(&mm->page_table_lock);
flush_tlb_range(vma, beg, end);
return error;
}
int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot)
{

3
arch/sparc64/kernel/pci.c
View File

@ -736,8 +736,7 @@ static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma
static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state)
{
/* Our io_remap_page_range/io_remap_pfn_range takes care of this,
do nothing. */
/* Our io_remap_pfn_range takes care of this, do nothing. */
}
/* Perform the actual remap of the pages for a PCI device mapping, as appropriate

3
arch/sparc64/kernel/sparc64_ksyms.c
View File

@ -88,8 +88,6 @@ extern int svr4_setcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *);
extern long sparc32_open(const char __user * filename, int flags, int mode);
extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from,
unsigned long offset, unsigned long size, pgprot_t prot, int space);
extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot);
extern void (*prom_palette)(int);
@ -245,7 +243,6 @@ EXPORT_SYMBOL(pci_dma_supported);
#endif
/* I/O device mmaping on Sparc64. */
EXPORT_SYMBOL(io_remap_page_range);
EXPORT_SYMBOL(io_remap_pfn_range);
/* Solaris/SunOS binary compatibility */

31
arch/sparc64/mm/generic.c
View File

@ -116,37 +116,6 @@ static inline int io_remap_pud_range(struct mm_struct *mm, pud_t * pud, unsigned
return 0;
}
int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset, unsigned long size, pgprot_t prot, int space)
{
int error = 0;
pgd_t * dir;
unsigned long beg = from;
unsigned long end = from + size;
struct mm_struct *mm = vma->vm_mm;
prot = __pgprot(pg_iobits);
offset -= from;
dir = pgd_offset(mm, from);
flush_cache_range(vma, beg, end);
spin_lock(&mm->page_table_lock);
while (from < end) {
pud_t *pud = pud_alloc(mm, dir, from);
error = -ENOMEM;
if (!pud)
break;
error = io_remap_pud_range(mm, pud, from, end - from, offset + from, prot, space);
if (error)
break;
from = (from + PGDIR_SIZE) & PGDIR_MASK;
dir++;
}
flush_tlb_range(vma, beg, end);
spin_unlock(&mm->page_table_lock);
return error;
}
int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot)
{

3
include/asm-sparc/pgtable.h
View File

@ -435,9 +435,6 @@ extern unsigned long *sparc_valid_addr_bitmap;
#define kern_addr_valid(addr) \
(test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap))
extern int io_remap_page_range(struct vm_area_struct *vma,
unsigned long from, unsigned long to,
unsigned long size, pgprot_t prot, int space);
extern int io_remap_pfn_range(struct vm_area_struct *vma,
unsigned long from, unsigned long pfn,
unsigned long size, pgprot_t prot);

3
include/asm-sparc64/pgtable.h
View File

@ -410,9 +410,6 @@ extern unsigned long *sparc64_valid_addr_bitmap;
#define kern_addr_valid(addr) \
(test_bit(__pa((unsigned long)(addr))>>22, sparc64_valid_addr_bitmap))
extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from,
unsigned long offset,
unsigned long size, pgprot_t prot, int space);
extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn,
unsigned long size, pgprot_t prot);