22456b9714
That's already the name of the game for x86_64. For i386, we add a pci-base_32.c, that will hold the default operations. The function call itself goes through dma-mapping.h , the common header Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
21 lines
484 B
C
21 lines
484 B
C
#include <linux/mm.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <asm/dma-mapping.h>
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static dma_addr_t pci32_map_single(struct device *dev, void *ptr,
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size_t size, int direction)
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{
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WARN_ON(size == 0);
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flush_write_buffers();
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return virt_to_phys(ptr);
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}
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static const struct dma_mapping_ops pci32_dma_ops = {
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.map_single = pci32_map_single,
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};
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const struct dma_mapping_ops *dma_ops = &pci32_dma_ops;
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EXPORT_SYMBOL(dma_ops);
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