diff options
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index a96ec0181818..ed84432264de 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -504,6 +504,11 @@ 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); |