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Commit 7bcfab20 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

powerpc/macio: set a proper dma_coherent_mask 



We have expected busses to set up a coherent mask to properly use the
common dma mapping code for a long time, and now that I've added a warning
macio turned out to not set one up yet.  This sets it to the same value
as the dma_mask, which seems to be what the drivers expect.

Reported-by: default avatarMathieu Malaterre <malat@debian.org>
Tested-by: default avatarMathieu Malaterre <malat@debian.org>
Reported-by: default avatarMeelis Roos <mroos@linux.ee>
Tested-by: default avatarMeelis Roos <mroos@linux.ee>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent ecc2dc55

drivers/macintosh/macio_asic.c

+1 −0
Original line number Diff line number Diff line
@@ -375,6 +375,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, 
	dev->ofdev.dev.of_node = np;

	dev->ofdev.archdata.dma_mask = 0xffffffffUL;

	dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask;

	dev->ofdev.dev.coherent_dma_mask = dev->ofdev.archdata.dma_mask;

	dev->ofdev.dev.parent = parent;

	dev->ofdev.dev.bus = &macio_bus_type;

	dev->ofdev.dev.release = macio_release_dev;