19 lines
417 B
C
19 lines
417 B
C
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/dma-direct.h>
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dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
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{
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return paddr | 0x80000000;
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}
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phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
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{
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#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
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if (dma_addr > 0x8fffffff)
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return dma_addr;
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return dma_addr & 0x0fffffff;
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#else
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return dma_addr & 0x7fffffff;
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#endif
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}
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