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Commit d5c435df authored by Alexander Shishkin's avatar Alexander Shishkin
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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: default avatarAlexander Shishkin <alexander.shishkin@linux.intel.com>
parent a753bfcf

drivers/hwtracing/intel_th/msu.c

+6 −6
Original line number Diff line number Diff line
@@ -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;