diff options
| author |   Christoph Hellwig <hch@lst.de> | 2018-02-13 07:44:34 -0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-02-13 08:58:53 -0800 |
| commit | 7bcfab202ca71bece02b283cdd104301c07eece4 (patch) | |
| tree | e48c150c35d039c64aff590754c966c68860b04b /drivers/macintosh | |
| parent | dma-mapping: fix a comment typo (diff) | |
| download | linux-dev-7bcfab202ca71bece02b283cdd104301c07eece4.tar.xz linux-dev-7bcfab202ca71bece02b283cdd104301c07eece4.zip | |
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: Mathieu Malaterre <malat@debian.org>
Tested-by: Mathieu Malaterre <malat@debian.org>
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/macintosh')
| -rw-r--r-- | drivers/macintosh/macio_asic.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 62f541f968f6..07074820a167 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -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; |