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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>
This commit is contained in:
Alexander Shishkin 2017-02-24 16:05:22 +02:00
parent a753bfcfdb
commit d5c435df4a
1 changed files with 6 additions and 6 deletions
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12
drivers/hwtracing/intel_th/msu.c
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@ -709,17 +709,17 @@ static int msc_buffer_win_alloc(struct msc *msc, unsigned int nr_blocks)
}
for (i = 0; i < nr_blocks; i++) {
win->block[i].bdesc = dma_alloc_coherent(msc_dev(msc), size,
&win->block[i].addr,
GFP_KERNEL);
win->block[i].bdesc =
dma_alloc_coherent(msc_dev(msc)->parent->parent, size,
&win->block[i].addr, GFP_KERNEL);
if (!win->block[i].bdesc)
goto err_nomem;
#ifdef CONFIG_X86
/* Set the page as uncached */
set_memory_uc((unsigned long)win->block[i].bdesc, 1);
#endif
if (!win->block[i].bdesc)
goto err_nomem;
}
win->msc = msc;