All the DRM GEM dma-buf import/export operations are done through the
virtual DRM master device. As this isn't instanciated from DT anymore
we need to make sure the DMA ops are set up correctly.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
v2: Create device with correct DMA mask/ops, instead of fixing up in
probe function.
---
drivers/gpu/drm/etnaviv/etnaviv_drv.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index ab50090d066c..31c49a7bc93f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -655,8 +655,6 @@ 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));
-
if (!dev->platform_data) {
struct device_node *core_node;
@@ -693,6 +691,8 @@ static struct platform_driver etnaviv_platform_driver = {
},
};
+static u64 etnaviv_dmamask = DMA_BIT_MASK(32);
+
static int __init etnaviv_init(void)
{
int ret;
@@ -713,10 +713,16 @@ static int __init etnaviv_init(void)
* the DRM platform device.
*/
for_each_compatible_node(np, NULL, "vivante,gc") {
+ struct platform_device *pdev;
+
if (!of_device_is_available(np))
continue;
- platform_device_register_simple("etnaviv", -1, NULL, 0);
+ pdev = platform_device_register_simple("etnaviv", -1, NULL, 0);
+ pdev->dev.dma_mask = &etnaviv_dmamask;
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+ arch_setup_dma_ops(&pdev->dev, 0, 0x100000000, NULL, false);
+
of_node_put(np);
break;
}
--
2.16.1
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