Merge pull request torvalds#343 from ThomasKaiser/patch-1

Change DMA coherent pool size to 2MB

Author: mdrjr

arch/arm64/mm/dma-mapping.c

@@ -32,7 +32,7 @@
 
 static struct gen_pool *atomic_pool;
 
-#define DEFAULT_DMA_COHERENT_POOL_SIZE  SZ_256K
+#define DEFAULT_DMA_COHERENT_POOL_SIZE  SZ_2M
 static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;
 
 static int __init early_coherent_pool(char *p)