diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_iommu.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_iommu.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c index 3799d5c2b5d..b32b291f88f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c @@ -36,21 +36,25 @@ int drm_create_iommu_mapping(struct drm_device *drm_dev) priv->da_start = EXYNOS_DEV_ADDR_START; if (!priv->da_space_size) priv->da_space_size = EXYNOS_DEV_ADDR_SIZE; - if (!priv->da_space_order) - priv->da_space_order = EXYNOS_DEV_ADDR_ORDER; mapping = arm_iommu_create_mapping(&platform_bus_type, priv->da_start, - priv->da_space_size, - priv->da_space_order); + priv->da_space_size); + if (IS_ERR(mapping)) return PTR_ERR(mapping); dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), GFP_KERNEL); + if (!dev->dma_parms) + goto error; + dma_set_max_seg_size(dev, 0xffffffffu); dev->archdata.mapping = mapping; return 0; +error: + arm_iommu_release_mapping(mapping); + return -ENOMEM; } /* @@ -91,6 +95,9 @@ int drm_iommu_attach_device(struct drm_device *drm_dev, subdrv_dev->dma_parms = devm_kzalloc(subdrv_dev, sizeof(*subdrv_dev->dma_parms), GFP_KERNEL); + if (!subdrv_dev->dma_parms) + return -ENOMEM; + dma_set_max_seg_size(subdrv_dev, 0xffffffffu); ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping); |