drm: Update to Linux 4.15.18

* Create /dev/dri/renderD* devices
Generally handle /dev entries creation as close to Linux as possible.

* Add drm master support
Sync authentification code with Li

drm: Update to Linux 4.15.18

* Create /dev/dri/renderD* devices
Generally handle /dev entries creation as close to Linux as possible.

* Add drm master support
Sync authentification code with Linux 4.15.18

* handle vm_mm->mmap_sem in ttm page fault operations

* Update dma-fence code from OpenBSD

* This commit contains sleep/wakeup and other changes
from Matthew Dillon <dillon@apollo.backplane.com>

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drm: Update generic, ttm and radeon code to Linux 4.9

* Generally cleanup non driver-specific code and increase its
robustness

* DisplayPort support improvements

* Atomic modesetting improvement

drm: Update generic, ttm and radeon code to Linux 4.9

* Generally cleanup non driver-specific code and increase its
robustness

* DisplayPort support improvements

* Atomic modesetting improvements

* Radeon performance and stability improvements

* drm/i915 stays based on Linux 4.7.10 with Linux 4.19 changes
for now

Reviewed-by: Romick

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drm/linux: Add struct i2c_board_info and i2c_new_device()

drm includes: Rename uapi_xxx to uapi/xxx

Making the include hierarchy 100% compatible with the Linux one.

drm/linux: Add i2c_get_adapdata and i2c_set_adapdata()

drm/linux: Remove no longer needed iic includes

drm: Implement and use the Linux i2c API

* This is mainly to the benefit of the drm/i915 driver

* Sync key portions of code with Linux 4.4

* Key drm functions using the DragonFly-specific iic(4) A

drm: Implement and use the Linux i2c API

* This is mainly to the benefit of the drm/i915 driver

* Sync key portions of code with Linux 4.4

* Key drm functions using the DragonFly-specific iic(4) API
have been copied and renamed with an _iic suffix

* The drm/radeon driver no longer being actively developed, the
intent is to keep it functional with a frozen API

Thanks to Johannes Hofmann for figuring out we could live with
a dummy default bit_xfer() implementation

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drm: Implement and use Linux struct device

kernel: Rename the struct behind device_t to bsd_device

Thus making it not clash with the Linux struct device anymore

Inspired-by: proposed FreeBSD changes

drm/i915: Update to Linux 3.16

* Much improved support for Broadwell GPUs. Acceleration should now be fully
operational and the giant L4 eDRAM cache is now enabled when present.

* Baytrail/Valley

drm/i915: Update to Linux 3.16

* Much improved support for Broadwell GPUs. Acceleration should now be fully
operational and the giant L4 eDRAM cache is now enabled when present.

* Baytrail/Valleyview support improvements

* prelimary support for Cherryview (14nm Atom SOCs)

* Various fixes and performance improvements on most other GPU generations

* Improved runtime power management

* 5.4GHz DisplayPort support

* Large cursor support (up to 256x256 pixels), useful for high-dpi displays.

* Mapping of user pages into video memory (userptr)
This allows zero-copy downloads and efficient readback to/from the GPU,
allowing faster rendering of client-side software rasterisers, mitigation
of stalls due to read back and faster pipelining of texture data (such as
pixel buffer objects in GL or data blobs in CL). Mixed CPU/GPU operations
become more efficient in general.

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linux/i2c.h: Properly define struct device

drm: Add linux/sched.h

drm: Reduce differences with Linux 3.8

* Support the DRM_CAP_TIMESTAMP_MONOTONIC IOCTL

* Improvements in CRTC, connectors and EDID/modes handling

drm: Add linux/i2c.h