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-rw-r--r--arch/x86/kernel/pci-nommu.c19
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index ada1c87cafc2..8e398b56f50b 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -80,26 +80,11 @@ nommu_alloc_coherent(struct device *hwdev, size_t size,
int node;
struct page *page;
- gfp |= __GFP_ZERO;
-
- dma_mask = hwdev->coherent_dma_mask;
- if (!dma_mask)
- dma_mask = *(hwdev->dma_mask);
+ dma_mask = dma_alloc_coherent_mask(hwdev, gfp);
- if (dma_mask < DMA_24BIT_MASK)
- return NULL;
+ gfp |= __GFP_ZERO;
node = dev_to_node(hwdev);
-
-#ifdef CONFIG_X86_64
- if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA))
- gfp |= GFP_DMA32;
-#endif
-
- /* No alloc-free penalty for ISA devices */
- if (dma_mask == DMA_24BIT_MASK)
- gfp |= GFP_DMA;
-
again:
page = alloc_pages_node(node, gfp, get_order(size));
if (!page)