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Diffstat (limited to 'arch/arm64/mm/dma-mapping.c')
-rw-r--r--arch/arm64/mm/dma-mapping.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a96ec0181818..49e217ac7e1e 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -504,20 +504,15 @@ static int __init arm64_dma_init(void)
max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT))
swiotlb = 1;
+ WARN_TAINT(ARCH_DMA_MINALIGN < cache_line_size(),
+ TAINT_CPU_OUT_OF_SPEC,
+ "ARCH_DMA_MINALIGN smaller than CTR_EL0.CWG (%d < %d)",
+ ARCH_DMA_MINALIGN, cache_line_size());
+
return atomic_pool_init();
}
arch_initcall(arm64_dma_init);
-#define PREALLOC_DMA_DEBUG_ENTRIES 4096
-
-static int __init dma_debug_do_init(void)
-{
- dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
- return 0;
-}
-fs_initcall(dma_debug_do_init);
-
-
#ifdef CONFIG_IOMMU_DMA
#include <linux/dma-iommu.h>
#include <linux/platform_device.h>