LOCAL / ARM64: mm: increase default coherent pool size to 2 MiB

xhci drivers use a lot coherent allocations and default 256 KiB is
sometimes not enough to register xhci usb host properly.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index ba88b5b..5f621df 100644 (file)
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -44,7 +44,7 @@ static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
 
 static struct gen_pool *atomic_pool __ro_after_init;
 
-#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)