1 files changed, 0 insertions, 43 deletions
diff --git a/arch/arm64/include/asm/dma-direct.h b/arch/arm64/include/asm/dma-direct.h
deleted file mode 100644
index abb1b40ec751..000000000000
--- a/arch/arm64/include/asm/dma-direct.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_DMA_DIRECT_H
-#define __ASM_DMA_DIRECT_H
-
-#include <linux/jump_label.h>
-#include <linux/swiotlb.h>
-
-#include <asm/cache.h>
-
-DECLARE_STATIC_KEY_FALSE(swiotlb_noncoherent_bounce);
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
-	dma_addr_t dev_addr = (dma_addr_t)paddr;
-
-	return dev_addr - ((dma_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
-{
-	phys_addr_t paddr = (phys_addr_t)dev_addr;
-
-	return paddr + ((phys_addr_t)dev->dma_pfn_offset << PAGE_SHIFT);
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	/*
-	 * Force swiotlb buffer bouncing when ARCH_DMA_MINALIGN < CWG. The
-	 * swiotlb bounce buffers are aligned to (1 << IO_TLB_SHIFT).
-	 */
-	if (static_branch_unlikely(&swiotlb_noncoherent_bounce) &&
-	    !is_device_dma_coherent(dev) &&
-	    !is_swiotlb_buffer(dma_to_phys(dev, addr)))
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
-#endif /* __ASM_DMA_DIRECT_H */