2011-06-04 12:56:48 -06:00
|
|
|
/*
|
|
|
|
* OpenRISC Linux
|
|
|
|
*
|
|
|
|
* Linux architectural port borrowing liberally from similar works of
|
|
|
|
* others. All original copyrights apply as per the original source
|
|
|
|
* declaration.
|
|
|
|
*
|
|
|
|
* OpenRISC implementation:
|
|
|
|
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __ASM_OPENRISC_DMA_MAPPING_H
|
|
|
|
#define __ASM_OPENRISC_DMA_MAPPING_H
|
|
|
|
|
|
|
|
/*
|
2011-08-14 18:02:26 -06:00
|
|
|
* See Documentation/DMA-API-HOWTO.txt and
|
2011-06-04 12:56:48 -06:00
|
|
|
* Documentation/DMA-API.txt for documentation.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/dma-debug.h>
|
|
|
|
#include <linux/kmemcheck.h>
|
2012-04-15 13:09:25 -06:00
|
|
|
#include <linux/dma-mapping.h>
|
2011-06-04 12:56:48 -06:00
|
|
|
|
|
|
|
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
|
|
|
|
|
2012-04-15 13:09:25 -06:00
|
|
|
extern struct dma_map_ops or1k_dma_map_ops;
|
2011-06-04 12:56:48 -06:00
|
|
|
|
2012-04-15 13:09:25 -06:00
|
|
|
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
|
2011-06-04 12:56:48 -06:00
|
|
|
{
|
2012-04-15 13:09:25 -06:00
|
|
|
return &or1k_dma_map_ops;
|
2011-06-04 12:56:48 -06:00
|
|
|
}
|
|
|
|
|
2015-09-09 16:39:49 -06:00
|
|
|
#define HAVE_ARCH_DMA_SUPPORTED 1
|
2011-06-04 12:56:48 -06:00
|
|
|
static inline int dma_supported(struct device *dev, u64 dma_mask)
|
|
|
|
{
|
|
|
|
/* Support 32 bit DMA mask exclusively */
|
2011-09-05 05:47:10 -06:00
|
|
|
return dma_mask == DMA_BIT_MASK(32);
|
|
|
|
}
|
|
|
|
|
2011-06-04 12:56:48 -06:00
|
|
|
#endif /* __ASM_OPENRISC_DMA_MAPPING_H */
|