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Commit 4bd89ed3 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

swiotlb: remove various exports 



All these symbols are only used by arch dma_ops implementations or
xen-swiotlb.  None of which can be modular.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
parent 0176adb0

lib/swiotlb.c

+0 −13
Original line number Diff line number Diff line
@@ -605,7 +605,6 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev, 


	return tlb_addr;

}

EXPORT_SYMBOL_GPL(swiotlb_tbl_map_single);



/*

 * Allocates bounce buffer and returns its kernel virtual address.
@@ -675,7 +674,6 @@ void swiotlb_tbl_unmap_single(struct device *hwdev, phys_addr_t tlb_addr, 
	}

	spin_unlock_irqrestore(&io_tlb_lock, flags);

}

EXPORT_SYMBOL_GPL(swiotlb_tbl_unmap_single);



void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr,

			     size_t size, enum dma_data_direction dir,
@@ -707,7 +705,6 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr, 
		BUG();

	}

}

EXPORT_SYMBOL_GPL(swiotlb_tbl_sync_single);



static inline bool dma_coherent_ok(struct device *dev, dma_addr_t addr,

		size_t size)
@@ -884,7 +881,6 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, 


	return swiotlb_phys_to_dma(dev, io_tlb_overflow_buffer);

}

EXPORT_SYMBOL_GPL(swiotlb_map_page);



/*

 * Unmap a single streaming mode DMA translation.  The dma_addr and size must
@@ -925,7 +921,6 @@ void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, 
{

	unmap_single(hwdev, dev_addr, size, dir, attrs);

}

EXPORT_SYMBOL_GPL(swiotlb_unmap_page);



/*

 * Make physical memory consistent for a single streaming mode DMA translation
@@ -963,7 +958,6 @@ swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, 
{

	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_CPU);

}

EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);



void

swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
@@ -971,7 +965,6 @@ swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, 
{

	swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_DEVICE);

}

EXPORT_SYMBOL(swiotlb_sync_single_for_device);



/*

 * Map a set of buffers described by scatterlist in streaming mode for DMA.
@@ -1023,7 +1016,6 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, 
	}

	return nelems;

}

EXPORT_SYMBOL(swiotlb_map_sg_attrs);



/*

 * Unmap a set of streaming mode DMA translations.  Again, cpu read rules
@@ -1043,7 +1035,6 @@ swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl, 
		unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir,

			     attrs);

}

EXPORT_SYMBOL(swiotlb_unmap_sg_attrs);



/*

 * Make physical memory consistent for a set of streaming mode DMA translations
@@ -1071,7 +1062,6 @@ swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, 
{

	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_CPU);

}

EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);



void

swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
@@ -1079,14 +1069,12 @@ swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, 
{

	swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_DEVICE);

}

EXPORT_SYMBOL(swiotlb_sync_sg_for_device);



int

swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr)

{

	return (dma_addr == swiotlb_phys_to_dma(hwdev, io_tlb_overflow_buffer));

}

EXPORT_SYMBOL(swiotlb_dma_mapping_error);



/*

 * Return whether the given device DMA address mask can be supported
@@ -1099,7 +1087,6 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask) 
{

	return swiotlb_phys_to_dma(hwdev, io_tlb_end - 1) <= mask;

}

EXPORT_SYMBOL(swiotlb_dma_supported);



#ifdef CONFIG_DMA_DIRECT_OPS

void *swiotlb_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,