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 000000000000..c0b4bf66c920 --- /dev/null +++ b/drivers/dma/ioatdma_io.h @@ -0,0 +1,118 @@ +/* + * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The full GNU General Public License is included in this distribution in the + * file called COPYING. + */ +#ifndef IOATDMA_IO_H +#define IOATDMA_IO_H + +#include <asm/io.h> + +/* + * device and per-channel MMIO register read and write functions + * this is a lot of anoying inline functions, but it's typesafe + */ + +static inline u8 ioatdma_read8(struct ioat_device *device, + unsigned int offset) +{ + return readb(device->reg_base + offset); +} + +static inline u16 ioatdma_read16(struct ioat_device *device, + unsigned int offset) +{ + return readw(device->reg_base + offset); +} + +static inline u32 ioatdma_read32(struct ioat_device *device, + unsigned int offset) +{ + return readl(device->reg_base + offset); +} + +static inline void ioatdma_write8(struct ioat_device *device, + unsigned int offset, u8 value) +{ + writeb(value, device->reg_base + offset); +} + +static inline void ioatdma_write16(struct ioat_device *device, + unsigned int offset, u16 value) +{ + writew(value, device->reg_base + offset); +} + +static inline void ioatdma_write32(struct ioat_device *device, + unsigned int offset, u32 value) +{ + writel(value, device->reg_base + offset); +} + +static inline u8 ioatdma_chan_read8(struct ioat_dma_chan *chan, + unsigned int offset) +{ + return readb(chan->reg_base + offset); +} + +static inline u16 ioatdma_chan_read16(struct ioat_dma_chan *chan, + unsigned int offset) +{ + return readw(chan->reg_base + offset); +} + +static inline u32 ioatdma_chan_read32(struct ioat_dma_chan *chan, + unsigned int offset) +{ + return readl(chan->reg_base + offset); +} + +static inline void ioatdma_chan_write8(struct ioat_dma_chan *chan, + unsigned int offset, u8 value) +{ + writeb(value, chan->reg_base + offset); +} + +static inline void ioatdma_chan_write16(struct ioat_dma_chan *chan, + unsigned int offset, u16 value) +{ + writew(value, chan->reg_base + offset); +} + +static inline void ioatdma_chan_write32(struct ioat_dma_chan *chan, + unsigned int offset, u32 value) +{ + writel(value, chan->reg_base + offset); +} + +#if (BITS_PER_LONG == 64) +static inline u64 ioatdma_chan_read64(struct ioat_dma_chan *chan, + unsigned int offset) +{ + return readq(chan->reg_base + offset); +} + +static inline void ioatdma_chan_write64(struct ioat_dma_chan *chan, + unsigned int offset, u64 value) +{ + writeq(value, chan->reg_base + offset); +} +#endif + +#endif /* IOATDMA_IO_H */ + |