kernel.git/drivers/gpu/drm/tegra/vic.c, branch linux-5.8.y

gpu: host1x: Rename "parent" to "host"

2020-01-10T15:37:38Z

Rename the host1x clients' parent to "host" because that more closely describes what it is. The parent can be confused with the parent device in terms of the device hierarchy. Subsequent patches will add a new member that refers to the parent in that hierarchy. Signed-off-by: Thierry Reding

drm/tegra: Silence expected errors on IOMMU attach

2019-12-04T12:37:44Z

Subdevices may not be hooked up to an IOMMU via device tree. Detect such situations and avoid confusing users by not emitting an error message. Reviewed-by: Daniel Vetter Signed-off-by: Thierry Reding

drm/tegra: vic: Export module device table

2019-12-04T12:37:27Z

Export the module device table to ensure the VIC compatible strings are listed in the module's aliases table. This in turn causes the driver to be automatically loaded on boot if VIC is the only enabled subdevice of the logical host1x DRM device. Reviewed-by: Daniel Vetter Signed-off-by: Thierry Reding

drm/tegra: falcon: Clarify address usage

2019-10-29T14:04:36Z

Rename paddr -> iova and vaddr -> virt to make it clearer how these addresses are used. This is important for a subsequent patch that makes a distinction between the physical address (physical address of the system memory from the CPU's point of view) and the IOVA (physical address of the system memory from the device's point of view). Signed-off-by: Thierry Reding

drm/tegra: Remove memory allocation from Falcon library

2019-10-29T14:04:36Z

Having to provide allocator hooks to the Falcon library is somewhat cumbersome and it doesn't give the users of the library a lot of flexibility to deal with allocations. Instead, remove the notion of Falcon "operations" and let drivers deal with the memory allocations themselves. Signed-off-by: Thierry Reding

drm/tegra: Simplify IOMMU group selection

2019-10-29T14:04:34Z

All the devices that make up the DRM device are now part of the same IOMMU group. This simplifies the handling of the IOMMU attachment and also avoids exhausting the number of IOMMUs available on early Tegra SoC generations. Signed-off-by: Thierry Reding

drm/tegra: Move IOMMU group into host1x client

2019-10-28T10:18:37Z

Handling of the IOMMU group attachment is common to all clients, so move the group into the client to simplify code. Signed-off-by: Thierry Reding

drm/tegra: vic: Use common IOMMU attach/detach code

2019-10-28T10:18:36Z

Reuse common code to attach to or detach from an IOMMU domain. Signed-off-by: Thierry Reding

drm/tegra: vic: Inherit DMA mask from host1x

2019-10-28T10:18:35Z

VIC, just like all other host1x clients, has the same addressing range as its parent host1x device. Inherit the DMA mask to reflect that. Signed-off-by: Thierry Reding

drm/tegra: vic: Skip stream ID programming without IOMMU

2019-10-28T10:18:35Z

If VIC is not behind an IOMMU, don't touch any of the registers related to stream ID programming. Signed-off-by: Thierry Reding