| Chris Leech | 0bbd5f4 | 2006-05-23 17:35:34 -0700 | [diff] [blame^] | 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 | |