kernel/linux.git/drivers/gpu/drm/tegra/vic.c, branch v5.16

drm/tegra: Boot VIC during runtime PM resume

2021-08-10T12:48:30+00:00

With the new UAPI implementation, engines are powered on and off when there are active jobs, and the core code handles channel allocation. To accommodate that, boot the engine as part of runtime PM instead of using the open_channel callback, which is not used by the new submit path. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: Don't call SET_APPLICATION_ID in VIC boot

2021-06-11T16:48:36+00:00

The application should be programming the application ID, not the kernel, as there can be several options to choose from, and setting the application ID multiple times can cause issues. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

gpu: host1x: Cleanup and refcounting for syncpoints

2021-03-31T15:42:13+00:00

Add reference counting for allocated syncpoints to allow keeping them allocated while jobs are referencing them. Additionally, clean up various places using syncpoint IDs to use host1x_syncpt pointers instead. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: Fix reference leak when pm_runtime_get_sync() fails

2021-01-15T16:24:51+00:00

The PM reference count is not expected to be incremented on return in these Tegra functions. However, pm_runtime_get_sync() will increment the PM reference count even on failure. Forgetting to put the reference again will result in a leak. Replace it with pm_runtime_resume_and_get() to keep the usage counter balanced. Fixes: fd67e9c6ed5a ("drm/tegra: Do not implement runtime PM") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao Signed-off-by: Thierry Reding

drm/tegra: vic: Add comments on STREAMID registers

2021-01-15T16:16:03+00:00

Add comments clarifying use of the THI_STREAMID0 and THI_STREAMID1 registers. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: falcon: Support newer VIC firmware

2021-01-15T16:15:50+00:00

Support newer VIC firmware by accepting the new magic number 0x10fe, loading the full code segment instead of just the first page at boot time, and skipping FCE setup if the firmware header indicates that FCE is handled internally by the firmware. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

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

2020-01-10T15:37:38+00:00

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

2019-12-04T12:37:44+00:00

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

2019-12-04T12:37:27+00:00

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

2019-10-29T14:04:36+00:00

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