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-rw-r--r--arch/sh64/mm/consistent.c53
1 files changed, 0 insertions, 53 deletions
diff --git a/arch/sh64/mm/consistent.c b/arch/sh64/mm/consistent.c
deleted file mode 100644
index c439620402cb..000000000000
--- a/arch/sh64/mm/consistent.c
+++ /dev/null
@@ -1,53 +0,0 @@
1/*
2 * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
3 * Copyright (C) 2003 Paul Mundt (lethal@linux-sh.org)
4 *
5 * May be copied or modified under the terms of the GNU General Public
6 * License. See linux/COPYING for more information.
7 *
8 * Dynamic DMA mapping support.
9 */
10#include <linux/types.h>
11#include <linux/mm.h>
12#include <linux/string.h>
13#include <linux/pci.h>
14#include <linux/dma-mapping.h>
15#include <linux/module.h>
16#include <asm/io.h>
17
18void *consistent_alloc(struct pci_dev *hwdev, size_t size,
19 dma_addr_t *dma_handle)
20{
21 void *ret;
22 int gfp = GFP_ATOMIC;
23 void *vp;
24
25 if (hwdev == NULL || hwdev->dma_mask != 0xffffffff)
26 gfp |= GFP_DMA;
27
28 ret = (void *)__get_free_pages(gfp, get_order(size));
29
30 /* now call our friend ioremap_nocache to give us an uncached area */
31 vp = ioremap_nocache(virt_to_phys(ret), size);
32
33 if (vp != NULL) {
34 memset(vp, 0, size);
35 *dma_handle = virt_to_phys(ret);
36 dma_cache_sync(NULL, ret, size, DMA_BIDIRECTIONAL);
37 }
38
39 return vp;
40}
41EXPORT_SYMBOL(consistent_alloc);
42
43void consistent_free(struct pci_dev *hwdev, size_t size,
44 void *vaddr, dma_addr_t dma_handle)
45{
46 void *alloc;
47
48 alloc = phys_to_virt((unsigned long)dma_handle);
49 free_pages((unsigned long)alloc, get_order(size));
50
51 iounmap(vaddr);
52}
53EXPORT_SYMBOL(consistent_free);