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arm64: Replace ZONE_DMA32 with ZONE_DMA

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On arm64 we do not have two DMA zones, so it does not make sense to
implement ZONE_DMA32. This patch changes ZONE_DMA32 with ZONE_DMA, the
latter covering 32-bit dma address space to honour GFP_DMA allocations.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Catalin Marinas
2014-02-27 12:09:22 +00:00
parent 16fb1a9bec
commit 19e7640d1f
3 changed files with 19 additions and 18 deletions
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4
arch/arm64/mm/dma-mapping.c
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@@ -39,9 +39,9 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
return NULL;
}
if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
if (IS_ENABLED(CONFIG_ZONE_DMA) &&
dev->coherent_dma_mask <= DMA_BIT_MASK(32))
flags |= GFP_DMA32;
flags |= GFP_DMA;
if (IS_ENABLED(CONFIG_DMA_CMA)) {
struct page *page;