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| author | Maxime Ripard <maxime@cerno.tech> | 2022-09-14 14:22:18 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-09-14 14:22:18 +0300 |
| commit | a108772d03d8bdb43258218b00bfe43bbe1e8800 (patch) | |
| tree | 11b1f413ab384f2b5de0773f01b6886e2c601f8b /drivers/gpu/drm/rockchip | |
| parent | 75cebd664d57a78af3e46c14bd2659df0a08847b (diff) | |
| parent | 213cb76ddc8b875e772f9f4d173feefa122716af (diff) | |
| download | linux-a108772d03d8bdb43258218b00bfe43bbe1e8800.tar.xz | |
Merge drm/drm-next into drm-misc-next
We need 6.0-rc1 to merge the backlight rework PR.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/gpu/drm/rockchip')
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index 49831c738d4d..813f9f8c8698 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -23,6 +23,14 @@ #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h> +#if defined(CONFIG_ARM_DMA_USE_IOMMU) +#include <asm/dma-iommu.h> +#else +#define arm_iommu_detach_device(...) ({ }) +#define arm_iommu_release_mapping(...) ({ }) +#define to_dma_iommu_mapping(dev) NULL +#endif + #include "rockchip_drm_drv.h" #include "rockchip_drm_fb.h" #include "rockchip_drm_gem.h" @@ -49,6 +57,15 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, if (!private->domain) return 0; + if (IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)) { + struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); + + if (mapping) { + arm_iommu_detach_device(dev); + arm_iommu_release_mapping(mapping); + } + } + ret = iommu_attach_device(private->domain, dev); if (ret) { DRM_DEV_ERROR(dev, "Failed to attach iommu device\n"); |