sh: Merge _32/_64 ioremap implementations.

There is nothing of interest in the _64 version anymore, so the _32 one
can be renamed and used unconditionally.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 0 insertions, 171 deletions

diff --git a/arch/sh/mm/ioremap_32.c b/arch/sh/mm/ioremap_32.c
deleted file mode 100644
index 24f6ba6bff71..000000000000
--- a/arch/sh/mm/ioremap_32.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * arch/sh/mm/ioremap.c
- *
- * (C) Copyright 1995 1996 Linus Torvalds
- * (C) Copyright 2005 - 2010  Paul Mundt
- *
- * Re-map IO memory to kernel address space so that we can access it.
- * This is needed for high PCI addresses that aren't mapped in the
- * 640k-1MB IO memory area on PC's
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- */
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/io.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/addrspace.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/mmu.h>
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-void __iomem *__ioremap_caller(unsigned long phys_addr, unsigned long size,
-			       unsigned long flags, void *caller)
-{
-	struct vm_struct *area;
-	unsigned long offset, last_addr, addr, orig_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * If we're in the fixed PCI memory range, mapping through page
-	 * tables is not only pointless, but also fundamentally broken.
-	 * Just return the physical address instead.
-	 *
-	 * For boards that map a small PCI memory aperture somewhere in
-	 * P1/P2 space, ioremap() will already do the right thing,
-	 * and we'll never get this far.
-	 */
-	if (is_pci_memory_fixed_range(phys_addr, size))
-		return (void __iomem *)phys_addr;
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr+1) - phys_addr;
-
-	/*
-	 * If we can't yet use the regular approach, go the fixmap route.
-	 */
-	if (!mem_init_done)
-		return ioremap_fixed(phys_addr, size, __pgprot(flags));
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area_caller(size, VM_IOREMAP, caller);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	orig_addr = addr = (unsigned long)area->addr;
-
-#ifdef CONFIG_PMB
-	/*
-	 * First try to remap through the PMB once a valid VMA has been
-	 * established. Smaller allocations (or the rest of the size
-	 * remaining after a PMB mapping due to the size not being
-	 * perfectly aligned on a PMB size boundary) are then mapped
-	 * through the UTLB using conventional page tables.
-	 *
-	 * PMB entries are all pre-faulted.
-	 */
-	if (unlikely(phys_addr >= P1SEG)) {
-		unsigned long mapped = pmb_remap(addr, phys_addr, size, flags);
-
-		if (likely(mapped)) {
-			addr		+= mapped;
-			phys_addr	+= mapped;
-			size		-= mapped;
-		}
-	}
-#endif
-
-	pgprot = __pgprot(pgprot_val(PAGE_KERNEL_NOCACHE) | flags);
-	if (likely(size))
-		if (ioremap_page_range(addr, addr + size, phys_addr, pgprot)) {
-			vunmap((void *)orig_addr);
-			return NULL;
-		}
-
-	return (void __iomem *)(offset + (char *)orig_addr);
-}
-EXPORT_SYMBOL(__ioremap_caller);
-
-/*
- * Simple checks for non-translatable mappings.
- */
-static inline int iomapping_nontranslatable(unsigned long offset)
-{
-#ifdef CONFIG_29BIT
-	/*
-	 * In 29-bit mode this includes the fixed P1/P2 areas, as well as
-	 * parts of P3.
-	 */
-	if (PXSEG(offset) < P3SEG || offset >= P3_ADDR_MAX)
-		return 1;
-#endif
-
-	if (is_pci_memory_fixed_range(offset, 0))
-		return 1;
-
-	return 0;
-}
-
-void __iounmap(void __iomem *addr)
-{
-	unsigned long vaddr = (unsigned long __force)addr;
-	struct vm_struct *p;
-
-	/*
-	 * Nothing to do if there is no translatable mapping.
-	 */
-	if (iomapping_nontranslatable(vaddr))
-		return;
-
-#ifdef CONFIG_PMB
-	/*
-	 * Purge any PMB entries that may have been established for this
-	 * mapping, then proceed with conventional VMA teardown.
-	 *
-	 * XXX: Note that due to the way that remove_vm_area() does
-	 * matching of the resultant VMA, we aren't able to fast-forward
-	 * the address past the PMB space until the end of the VMA where
-	 * the page tables reside. As such, unmap_vm_area() will be
-	 * forced to linearly scan over the area until it finds the page
-	 * tables where PTEs that need to be unmapped actually reside,
-	 * which is far from optimal. Perhaps we need to use a separate
-	 * VMA for the PMB mappings?
-	 *					-- PFM.
-	 */
-	pmb_unmap(vaddr);
-#endif
-
-	p = remove_vm_area((void *)(vaddr & PAGE_MASK));
-	if (!p) {
-		printk(KERN_ERR "%s: bad address %p\n", __func__, addr);
-		return;
-	}
-
-	kfree(p);
-}
-EXPORT_SYMBOL(__iounmap);