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arm64: replace ZONE_DMA with ZONE_DMA32

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arm64 uses ZONE_DMA for allocations below 32-bits.  These days we
name the zone for that ZONE_DMA32, which will allow to use the
dma-direct and generic swiotlb code as-is, so rename it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
This commit is contained in:
Christoph Hellwig
2017-12-24 13:52:03 +01:00
parent ac2e8860cb
commit ad67f5a654
3 changed files with 12 additions and 12 deletions
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6
arch/arm64/mm/dma-mapping.c
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@@ -95,9 +95,9 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
unsigned long attrs)
{
if (IS_ENABLED(CONFIG_ZONE_DMA) &&
if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
dev->coherent_dma_mask <= DMA_BIT_MASK(32))
flags |= GFP_DMA;
flags |= GFP_DMA32;
if (dev_get_cma_area(dev) && gfpflags_allow_blocking(flags)) {
struct page *page;
void *addr;
@@ -397,7 +397,7 @@ static int __init atomic_pool_init(void)
page = dma_alloc_from_contiguous(NULL, nr_pages,
pool_size_order, GFP_KERNEL);
else
page = alloc_pages(GFP_DMA, pool_size_order);
page = alloc_pages(GFP_DMA32, pool_size_order);
if (page) {
int ret;