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-rw-r--r--arch/s390/mm/Makefile2
-rw-r--r--arch/s390/mm/ioremap.c58
2 files changed, 1 insertions, 59 deletions
diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile
index 8e09db1edbb9..f95449b29fa5 100644
--- a/arch/s390/mm/Makefile
+++ b/arch/s390/mm/Makefile
@@ -2,6 +2,6 @@
2# Makefile for the linux s390-specific parts of the memory manager. 2# Makefile for the linux s390-specific parts of the memory manager.
3# 3#
4 4
5obj-y := init.o fault.o ioremap.o extmem.o mmap.o vmem.o 5obj-y := init.o fault.o extmem.o mmap.o vmem.o
6obj-$(CONFIG_CMM) += cmm.o 6obj-$(CONFIG_CMM) += cmm.o
7 7
diff --git a/arch/s390/mm/ioremap.c b/arch/s390/mm/ioremap.c
deleted file mode 100644
index 3d2100a4e209..000000000000
--- a/arch/s390/mm/ioremap.c
+++ /dev/null
@@ -1,58 +0,0 @@
1/*
2 * arch/s390/mm/ioremap.c
3 *
4 * S390 version
5 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 * Author(s): Hartmut Penner (hp@de.ibm.com)
7 *
8 * Derived from "arch/i386/mm/extable.c"
9 * (C) Copyright 1995 1996 Linus Torvalds
10 *
11 * Re-map IO memory to kernel address space so that we can access it.
12 * This is needed for high PCI addresses that aren't mapped in the
13 * 640k-1MB IO memory area on PC's
14 */
15
16#include <linux/vmalloc.h>
17#include <linux/mm.h>
18#include <linux/io.h>
19#include <asm/pgalloc.h>
20
21/*
22 * Generic mapping function (not visible outside):
23 */
24
25/*
26 * Remap an arbitrary physical address space into the kernel virtual
27 * address space. Needed when the kernel wants to access high addresses
28 * directly.
29 */
30void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
31{
32 void * addr;
33 struct vm_struct * area;
34
35 if (phys_addr < virt_to_phys(high_memory))
36 return phys_to_virt(phys_addr);
37 if (phys_addr & ~PAGE_MASK)
38 return NULL;
39 size = PAGE_ALIGN(size);
40 if (!size || size > phys_addr + size)
41 return NULL;
42 area = get_vm_area(size, VM_IOREMAP);
43 if (!area)
44 return NULL;
45 addr = area->addr;
46 if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
47 phys_addr, __pgprot(flags))) {
48 vfree(addr);
49 return NULL;
50 }
51 return addr;
52}
53
54void iounmap(void *addr)
55{
56 if (addr > high_memory)
57 vfree(addr);
58}