diff options
Diffstat (limited to 'drivers/dma/ioatdma_io.h')
-rw-r--r-- | drivers/dma/ioatdma_io.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/dma/ioatdma_io.h b/drivers/dma/ioatdma_io.h new file mode 100644 index 00000000000..c0b4bf66c92 --- /dev/null +++ b/drivers/dma/ioatdma_io.h | |||
@@ -0,0 +1,118 @@ | |||
1 | /* | ||
2 | * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of the GNU General Public License as published by the Free | ||
6 | * Software Foundation; either version 2 of the License, or (at your option) | ||
7 | * any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | ||
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
12 | * more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License along with | ||
15 | * this program; if not, write to the Free Software Foundation, Inc., 59 | ||
16 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
17 | * | ||
18 | * The full GNU General Public License is included in this distribution in the | ||
19 | * file called COPYING. | ||
20 | */ | ||
21 | #ifndef IOATDMA_IO_H | ||
22 | #define IOATDMA_IO_H | ||
23 | |||
24 | #include <asm/io.h> | ||
25 | |||
26 | /* | ||
27 | * device and per-channel MMIO register read and write functions | ||
28 | * this is a lot of anoying inline functions, but it's typesafe | ||
29 | */ | ||
30 | |||
31 | static inline u8 ioatdma_read8(struct ioat_device *device, | ||
32 | unsigned int offset) | ||
33 | { | ||
34 | return readb(device->reg_base + offset); | ||
35 | } | ||
36 | |||
37 | static inline u16 ioatdma_read16(struct ioat_device *device, | ||
38 | unsigned int offset) | ||
39 | { | ||
40 | return readw(device->reg_base + offset); | ||
41 | } | ||
42 | |||
43 | static inline u32 ioatdma_read32(struct ioat_device *device, | ||
44 | unsigned int offset) | ||
45 | { | ||
46 | return readl(device->reg_base + offset); | ||
47 | } | ||
48 | |||
49 | static inline void ioatdma_write8(struct ioat_device *device, | ||
50 | unsigned int offset, u8 value) | ||
51 | { | ||
52 | writeb(value, device->reg_base + offset); | ||
53 | } | ||
54 | |||
55 | static inline void ioatdma_write16(struct ioat_device *device, | ||
56 | unsigned int offset, u16 value) | ||
57 | { | ||
58 | writew(value, device->reg_base + offset); | ||
59 | } | ||
60 | |||
61 | static inline void ioatdma_write32(struct ioat_device *device, | ||
62 | unsigned int offset, u32 value) | ||
63 | { | ||
64 | writel(value, device->reg_base + offset); | ||
65 | } | ||
66 | |||
67 | static inline u8 ioatdma_chan_read8(struct ioat_dma_chan *chan, | ||
68 | unsigned int offset) | ||
69 | { | ||
70 | return readb(chan->reg_base + offset); | ||
71 | } | ||
72 | |||
73 | static inline u16 ioatdma_chan_read16(struct ioat_dma_chan *chan, | ||
74 | unsigned int offset) | ||
75 | { | ||
76 | return readw(chan->reg_base + offset); | ||
77 | } | ||
78 | |||
79 | static inline u32 ioatdma_chan_read32(struct ioat_dma_chan *chan, | ||
80 | unsigned int offset) | ||
81 | { | ||
82 | return readl(chan->reg_base + offset); | ||
83 | } | ||
84 | |||
85 | static inline void ioatdma_chan_write8(struct ioat_dma_chan *chan, | ||
86 | unsigned int offset, u8 value) | ||
87 | { | ||
88 | writeb(value, chan->reg_base + offset); | ||
89 | } | ||
90 | |||
91 | static inline void ioatdma_chan_write16(struct ioat_dma_chan *chan, | ||
92 | unsigned int offset, u16 value) | ||
93 | { | ||
94 | writew(value, chan->reg_base + offset); | ||
95 | } | ||
96 | |||
97 | static inline void ioatdma_chan_write32(struct ioat_dma_chan *chan, | ||
98 | unsigned int offset, u32 value) | ||
99 | { | ||
100 | writel(value, chan->reg_base + offset); | ||
101 | } | ||
102 | |||
103 | #if (BITS_PER_LONG == 64) | ||
104 | static inline u64 ioatdma_chan_read64(struct ioat_dma_chan *chan, | ||
105 | unsigned int offset) | ||
106 | { | ||
107 | return readq(chan->reg_base + offset); | ||
108 | } | ||
109 | |||
110 | static inline void ioatdma_chan_write64(struct ioat_dma_chan *chan, | ||
111 | unsigned int offset, u64 value) | ||
112 | { | ||
113 | writeq(value, chan->reg_base + offset); | ||
114 | } | ||
115 | #endif | ||
116 | |||
117 | #endif /* IOATDMA_IO_H */ | ||
118 | |||