Hi Lucas, Christoph,
After switching ARC to generic dma_noncoherent cache ops etnaviv driver start failing on dma maping functions because of dma_mask lack.
So I'm wondering is it valid case to have device which is DMA capable and doesn't have dma_mask set?
If not, then I guess something like that should work (at least it works for ARC):
Signed-off-by: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com --- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 540b59fb4103..69d80937e021 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -593,7 +593,7 @@ static int etnaviv_pdev_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct component_match *match = NULL;
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (!dev->platform_data) { struct device_node *core_node;