From: David S. Miller Date: Fri, 2 Sep 2005 04:51:26 +0000 (-0700) Subject: [SPARC]: Kill io_remap_page_range() X-Git-Tag: upstream/snapshot3+hdmi~46618^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a7a6cac204147634aba7487e4d618b028ff54c0d;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [SPARC]: Kill io_remap_page_range() It's been deprecated long enough and there are no in-tree users any longer. Signed-off-by: David S. Miller --- diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c index 8faa8dc..5d974a2 100644 --- a/arch/sparc/kernel/sparc_ksyms.c +++ b/arch/sparc/kernel/sparc_ksyms.c @@ -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); */ diff --git a/arch/sparc/mm/generic.c b/arch/sparc/mm/generic.c index db27eee..20ccb95 100644 --- a/arch/sparc/mm/generic.c +++ b/arch/sparc/mm/generic.c @@ -16,31 +16,6 @@ #include #include -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) { diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index f21c993..ec8bf40 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -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 diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index a3ea697..d89fc24 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -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 */ diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c index 6b31f61..c954d91 100644 --- a/arch/sparc64/mm/generic.c +++ b/arch/sparc64/mm/generic.c @@ -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) { diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index 40ed30a..8f4f6a95 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h @@ -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); diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index 1ae00c5..a2b4f5e 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -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);