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linux-next/arch/ia64/kernel/dma-mapping.c
Christoph Hellwig 6c13bb1d58 ia64: remove CONFIG_SWIOTLB ifdefs
CONFIG_SWIOTLB is now unconditionally selected on ia64, so remove the
ifdefs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-28-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>
2019-08-16 14:32:26 -07:00

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746 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.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);
void *arch_dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
}
void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
}
long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr,
dma_addr_t dma_addr)
{
return page_to_pfn(virt_to_page(cpu_addr));
}