1 files changed, 2 insertions, 88 deletions

diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 8f8e97f7eac9..8e63e86251ca 100644
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -13,99 +13,16 @@
 
 #include <linux/vmalloc.h>
 #include <linux/io.h>
+#include <linux/pgtable.h>
 #include <asm/pgalloc.h>
-#include <asm/kmap_types.h>
 #include <asm/fixmap.h>
 #include <asm/bug.h>
-#include <asm/pgtable.h>
 #include <linux/sched.h>
 #include <asm/tlbflush.h>
 
 extern int mem_init_done;
 
-static unsigned int fixmaps_used __initdata;
-
 /*
- * 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 *__ref ioremap(phys_addr_t addr, unsigned long size)
-{
-	phys_addr_t p;
-	unsigned long v;
-	unsigned long offset, last_addr;
-	struct vm_struct *area = NULL;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = addr + size - 1;
-	if (!size || last_addr < addr)
-		return NULL;
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = addr & ~PAGE_MASK;
-	p = addr & PAGE_MASK;
-	size = PAGE_ALIGN(last_addr + 1) - p;
-
-	if (likely(mem_init_done)) {
-		area = get_vm_area(size, VM_IOREMAP);
-		if (!area)
-			return NULL;
-		v = (unsigned long)area->addr;
-	} else {
-		if ((fixmaps_used + (size >> PAGE_SHIFT)) > FIX_N_IOREMAPS)
-			return NULL;
-		v = fix_to_virt(FIX_IOREMAP_BEGIN + fixmaps_used);
-		fixmaps_used += (size >> PAGE_SHIFT);
-	}
-
-	if (ioremap_page_range(v, v + size, p,
-			__pgprot(pgprot_val(PAGE_KERNEL) | _PAGE_CI))) {
-		if (likely(mem_init_done))
-			vfree(area->addr);
-		else
-			fixmaps_used -= (size >> PAGE_SHIFT);
-		return NULL;
-	}
-
-	return (void __iomem *)(offset + (char *)v);
-}
-EXPORT_SYMBOL(ioremap);
-
-void iounmap(void *addr)
-{
-	/* If the page is from the fixmap pool then we just clear out
-	 * the fixmap mapping.
-	 */
-	if (unlikely((unsigned long)addr > FIXADDR_START)) {
-		/* This is a bit broken... we don't really know
-		 * how big the area is so it's difficult to know
-		 * how many fixed pages to invalidate...
-		 * just flush tlb and hope for the best...
-		 * consider this a FIXME
-		 *
-		 * Really we should be clearing out one or more page
-		 * table entries for these virtual addresses so that
-		 * future references cause a page fault... for now, we
-		 * rely on two things:
-		 *   i)  this code never gets called on known boards
-		 *   ii) invalid accesses to the freed areas aren't made
-		 */
-		flush_tlb_all();
-		return;
-	}
-
-	return vfree((void *)(PAGE_MASK & (unsigned long)addr));
-}
-EXPORT_SYMBOL(iounmap);
-
-/**
  * OK, this one's a bit tricky... ioremap can get called before memory is
  * initialized (early serial console does this) and will want to alloc a page
  * for its mapping.  No userspace pages will ever get allocated before memory
@@ -121,10 +38,7 @@ pte_t __ref *pte_alloc_one_kernel(struct mm_struct *mm)
 	if (likely(mem_init_done)) {
 		pte = (pte_t *)get_zeroed_page(GFP_KERNEL);
 	} else {
-		pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
-		if (!pte)
-			panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
-			      __func__, PAGE_SIZE, PAGE_SIZE);
+		pte = memblock_alloc_or_panic(PAGE_SIZE, PAGE_SIZE);
 	}
 
 	return pte;