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sparc32: use per-device dma_ops

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sparc32 is the last platform making dynamic decisions in
get_arch_dma_ops based on the bus passed in.  Instead set the
iommu dma_ops at iommu probing and propagate them in
of_propagate_archdata, falling back to the NULL ops for the
direct mapping in the Leon or PCI case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig
2020-03-23 09:43:42 +01:00
committed by David S. Miller
parent bef7b2a7be
commit 255a69a94b
7 changed files with 16 additions and 34 deletions
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3
arch/sparc/kernel/ioport.c
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@@ -373,9 +373,6 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
dma_make_coherent(paddr, PAGE_ALIGN(size));
}
const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
#ifdef CONFIG_PROC_FS
static int sparc_io_proc_show(struct seq_file *m, void *v)