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Diffstat (limited to 'arch/mips/loongson64/common/dma-swiotlb.c')
-rw-r--r--arch/mips/loongson64/common/dma-swiotlb.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index aab4fd681e1f..178ca17a5667 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -17,22 +17,14 @@ static void *loongson_dma_alloc_coherent(struct device *dev, size_t size,
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
-#ifdef CONFIG_ISA
- if (dev == NULL)
+ if ((IS_ENABLED(CONFIG_ISA) && dev == NULL) ||
+ (IS_ENABLED(CONFIG_ZONE_DMA) &&
+ dev->coherent_dma_mask < DMA_BIT_MASK(32)))
gfp |= __GFP_DMA;
- else
-#endif
-#ifdef CONFIG_ZONE_DMA
- if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
- gfp |= __GFP_DMA;
- else
-#endif
-#ifdef CONFIG_ZONE_DMA32
- if (dev->coherent_dma_mask < DMA_BIT_MASK(40))
+ else if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
+ dev->coherent_dma_mask < DMA_BIT_MASK(40))
gfp |= __GFP_DMA32;
- else
-#endif
- ;
+
gfp |= __GFP_NORETRY;
ret = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
@@ -122,7 +114,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
return daddr;
}
-static struct dma_map_ops loongson_dma_map_ops = {
+static const struct dma_map_ops loongson_dma_map_ops = {
.alloc = loongson_dma_alloc_coherent,
.free = loongson_dma_free_coherent,
.map_page = loongson_dma_map_page,