diff options
Diffstat (limited to 'kernel/dma/swiotlb.c')
| -rw-r--r-- | kernel/dma/swiotlb.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 5b919ef832b6..1ec38701a7f5 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -998,6 +998,11 @@ static int rmem_swiotlb_device_init(struct reserved_mem *rmem, /* Set Per-device io tlb area to one */ unsigned int nareas = 1; + if (PageHighMem(pfn_to_page(PHYS_PFN(rmem->base)))) { + dev_err(dev, "Restricted DMA pool must be accessible within the linear mapping."); + return -EINVAL; + } + /* * Since multiple devices can share the same pool, the private data, * io_tlb_mem struct, will be initialized by the first device attached @@ -1059,11 +1064,6 @@ static int __init rmem_swiotlb_setup(struct reserved_mem *rmem) of_get_flat_dt_prop(node, "no-map", NULL)) return -EINVAL; - if (PageHighMem(pfn_to_page(PHYS_PFN(rmem->base)))) { - pr_err("Restricted DMA pool must be accessible within the linear mapping."); - return -EINVAL; - } - rmem->ops = &rmem_swiotlb_ops; pr_info("Reserved memory: created restricted DMA pool at %pa, size %ld MiB\n", &rmem->base, (unsigned long)rmem->size / SZ_1M); |