4fac8076df
Move the few remaining bits of swiotlb glue towards their callers, and remove the pointless on ia64 swiotlb variable. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian König <christian.koenig@amd.com>
35 lines
660 B
C
35 lines
660 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/swiotlb.h>
|
|
#include <linux/export.h>
|
|
|
|
/* Set this to 1 if there is a HW IOMMU in the system */
|
|
int iommu_detected __read_mostly;
|
|
|
|
const struct dma_map_ops *dma_ops;
|
|
EXPORT_SYMBOL(dma_ops);
|
|
|
|
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
|
|
|
|
static int __init dma_init(void)
|
|
{
|
|
dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
|
|
|
|
return 0;
|
|
}
|
|
fs_initcall(dma_init);
|
|
|
|
const struct dma_map_ops *dma_get_ops(struct device *dev)
|
|
{
|
|
return dma_ops;
|
|
}
|
|
EXPORT_SYMBOL(dma_get_ops);
|
|
|
|
#ifdef CONFIG_SWIOTLB
|
|
void __init swiotlb_dma_init(void)
|
|
{
|
|
dma_ops = &swiotlb_dma_ops;
|
|
swiotlb_init(1);
|
|
}
|
|
#endif
|