diff options
Diffstat (limited to 'arch/sh64/mm/consistent.c')
-rw-r--r-- | arch/sh64/mm/consistent.c | 53 |
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 | |||
18 | void *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 | } | ||
41 | EXPORT_SYMBOL(consistent_alloc); | ||
42 | |||
43 | void 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 | } | ||
53 | EXPORT_SYMBOL(consistent_free); | ||