Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Christoph Hellwig |
70 |
48.28% |
2 |
16.67% |
| Michal Simek |
36 |
24.83% |
5 |
41.67% |
| Eli Billauer |
32 |
22.07% |
2 |
16.67% |
| Paul Gortmaker |
3 |
2.07% |
1 |
8.33% |
| Tejun Heo |
3 |
2.07% |
1 |
8.33% |
| Greg Kroah-Hartman |
1 |
0.69% |
1 |
8.33% |
| Total |
145 |
|
12 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2009-2010 PetaLogix
* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corporation
*
* Provide default implementations of the DMA mapping callbacks for
* directly mapped busses.
*/
#include <linux/device.h>
#include <linux/dma-noncoherent.h>
#include <linux/gfp.h>
#include <linux/dma-debug.h>
#include <linux/export.h>
#include <linux/bug.h>
#include <asm/cacheflush.h>
static void __dma_sync(struct device *dev, phys_addr_t paddr, size_t size,
enum dma_data_direction direction)
{
switch (direction) {
case DMA_TO_DEVICE:
case DMA_BIDIRECTIONAL:
flush_dcache_range(paddr, paddr + size);
break;
case DMA_FROM_DEVICE:
invalidate_dcache_range(paddr, paddr + size);
break;
default:
BUG();
}
}
void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
size_t size, enum dma_data_direction dir)
{
__dma_sync(dev, paddr, size, dir);
}
void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr,
size_t size, enum dma_data_direction dir)
{
__dma_sync(dev, paddr, size, dir);
}