leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/msm: set dma_mask properly

Browse Source 
Previous value really only made sense on armv7 without LPAE.  Everything
that supports more than 4g of memory also has iommu's that can map
anything.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2016-11-07 13:31:30 -05:00
parent d8dd80526c
commit c83ea57601
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/msm/msm_drv.c
View File

@ -1038,7 +1038,13 @@ static int msm_pdev_probe(struct platform_device *pdev)
if (ret)
return ret;
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
/* on all devices that I am aware of, iommu's which can map
* any address the cpu can see are used:
*/
ret = dma_set_mask_and_coherent(&pdev->dev, ~0);
if (ret)
return ret;
return component_master_add_with_match(&pdev->dev, &msm_drm_ops, match);
}