kernel/drivers/gpu/drm/tegra/gr2d.c, branch linux-5.1.y

drm/tegra: gr2d: Track interface version

2018-05-18T20:00:13Z

Set the interface version implemented by the gr2d module. This allows userspace to pass the correct command stream when programming the gr2d module. Reviewed-by: Dmitry Osipenko Tested-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: Refactor IOMMU attach/detach

2018-05-17T12:08:40Z

Attaching to and detaching from an IOMMU uses the same code sequence in every driver, so factor it out into separate helpers. Reviewed-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Properly clean up resources

2018-05-04T15:07:22Z

Failure to register the Tegra DRM client would leak the resources. Move cleanup code to error unwinding gotos to fix that and share the cleanup code with the other error paths. Reviewed-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: gr2d: Add IOMMU support

2018-05-04T12:19:54Z

Attach GR2D to the display IOMMU group in order to provide GR2D access to BO's IOVA. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

gpu: host1x: syncpt: Request syncpoints per client

2017-10-20T12:19:51Z

Rather than request syncpoints for a struct device *, request them for a struct host1x_client *. This is important because subsequent patches are going to break the assumption that host1x will always be the parent for devices requesting a syncpoint. It's also a more natural choice because host1x clients are really the only ones that will know how to deal with syncpoints. Note that host1x clients are always guaranteed to be children of host1x, regardless of their location in the device tree. Signed-off-by: Thierry Reding

gpu: host1x: Refactor channel allocation code

2017-06-15T12:25:38Z

This is largely a rewrite of the Host1x channel allocation code, bringing several changes: - The previous code could deadlock due to an interaction between the 'reflock' mutex and CDMA timeout handling. This gets rid of the mutex. - Support for more than 32 channels, required for Tegra186 - General refactoring, including better encapsulation of channel ownership handling into channel.c Signed-off-by: Mikko Perttunen Reviewed-by: Dmitry Osipenko Tested-by: Dmitry Osipenko Signed-off-by: Thierry Reding

gpu: host1x: Forbid unrelated SETCLASS opcode in the firewall

2017-06-15T12:23:50Z

Several channels could be made to write the same unit concurrently via the SETCLASS opcode, trusting userspace is a bad idea. It should be possible to drop the per-client channel reservation and add a per-unit locking by inserting MLOCK's to the command stream to re-allow the SETCLASS opcode, but it will be much more work. Let's forbid the unit-unrelated class changes for now. Signed-off-by: Dmitry Osipenko Reviewed-by: Erik Faye-Lund Reviewed-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: add MODULE_DEVICE_TABLEs

2014-08-04T08:07:39Z

When tegra-drm.ko is built as a module, these MODULE_DEVICE_TABLEs allow the module to be auto-loaded since the module will match the devices instantiated from device tree. (Notes for stable: in 3.14+, just git rm any conflicting file, since they are added in later kernels. For 3.13 and below, manual merging will be needed) Cc: Signed-off-by: Stephen Warren Signed-off-by: Thierry Reding

drm/tegra: Remove host1x drm_bus implementation

2014-06-05T21:14:46Z

The DRM core can now cope with drivers that don't have an associated struct drm_bus, so the host1x implementation is no longer useful. Signed-off-by: Thierry Reding

drm/tegra: Use standard GPL v2 license text

2014-04-04T07:12:51Z

Use the more canonical and concise variant of the GPL v2 license text. Acked-by: Stephen Warren Signed-off-by: Thierry Reding