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intel_th: msu: Use the real device in case of IOMMU domain allocation
When allocating DMA buffers for the MSU, use the real device instead of GTH. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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@ -709,17 +709,17 @@ static int msc_buffer_win_alloc(struct msc *msc, unsigned int nr_blocks)
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}
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for (i = 0; i < nr_blocks; i++) {
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win->block[i].bdesc = dma_alloc_coherent(msc_dev(msc), size,
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&win->block[i].addr,
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GFP_KERNEL);
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win->block[i].bdesc =
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dma_alloc_coherent(msc_dev(msc)->parent->parent, size,
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&win->block[i].addr, GFP_KERNEL);
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if (!win->block[i].bdesc)
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goto err_nomem;
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#ifdef CONFIG_X86
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/* Set the page as uncached */
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set_memory_uc((unsigned long)win->block[i].bdesc, 1);
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#endif
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if (!win->block[i].bdesc)
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goto err_nomem;
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}
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win->msc = msc;
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