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 to Linux 4.12.14

* Initial Geminilake support

* Support improvements and model-specific bug fixes for Broxton, Haswell,
Broadwell, Skylake and Kabylake hardware

* Various generic i91

drm: Update to Linux 4.12.14

* Initial Geminilake support

* Support improvements and model-specific bug fixes for Broxton, Haswell,
Broadwell, Skylake and Kabylake hardware

* Various generic i915 bug fixes, including page flipping and memory
corruption issues

* Minor radeon bug fixes

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drm: Update base driver to Linux 4.10.17

Thanks to Matthew Dillon <dillon@apollo.backplane.com>
for some VM fixes.

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 includes: Rename uapi_xxx to uapi/xxx

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

drm/i915: Update to Linux 4.7.10

* Various bugfixes, including GPU-specific ones on Ironlake and more
recent hardware.
Runtime power management and atomic modesetting have been specially
impro

drm/i915: Update to Linux 4.7.10

* Various bugfixes, including GPU-specific ones on Ironlake and more
recent hardware.
Runtime power management and atomic modesetting have been specially
improved.

* Fix Hardware hangs on Ironlake, Sandybridge, Ivybridge, Skylake and
Kabylake GPUs

* Fix various display flickering issues, including PSR, Broadwell and
Display-port specific ones

* Kabylake support is no longer considered experimental

* Color management has been added for Broadwell, Skylake, Kabylake as
well as Cherryview and Broxton GPUs. The intent is to obtain more
accurate color representation on various types of panel.

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drm/i915: Update to Linux 4.6

* Skylake and Kabylake support improvements

* FBC (FrameBuffer Compression) now enabled by default on Haswell and
Broadwell GPUs

* PSR (Panel Self Refresh) support

drm/i915: Update to Linux 4.6

* Skylake and Kabylake support improvements

* FBC (FrameBuffer Compression) now enabled by default on Haswell and
Broadwell GPUs

* PSR (Panel Self Refresh) support improved, now enabled by default on
Valleyview, CherryView, Haswell and Broadwell

* Improved DSI panel support

* HDMI hotplug fixes

* Various bugfixes everywhere

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drm/i915: Update to Linux 4.5

* Mostly bugfixes. Lots and lots of bugfixes.

* Skylake and Broxton support improvements

* Initial Kabylake support

drm/i915: Update to Linux 4.3

* Generic stability improvements

* Stability fixes and support improvements for various GPU families, including
Broxton, Valleyview, Cherryview, Broadwell and Skylak

drm/i915: Update to Linux 4.3

* Generic stability improvements

* Stability fixes and support improvements for various GPU families, including
Broxton, Valleyview, Cherryview, Broadwell and Skylake

* Skylake support is no longer considered experimental

* HDMI now uses 12 bits per color component if the screen supports it.

* Power saving features improvements: many fixes have been made to the
PSR (panel self refresh) and FBC (framebuffer compression) code.
These features are not yet enabled by default though.

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drm/i915: Update to Linux 4.2

* Work in progress atomic modesetting support

* Broadwell support improvements

* Skylake support improvements, including runtime power management.
Starting from Lin

drm/i915: Update to Linux 4.2

* Work in progress atomic modesetting support

* Broadwell support improvements

* Skylake support improvements, including runtime power management.
Starting from Linux 4.2, a separate firmware blob is required to save
and restore the state of display engines in some low-power modes. These
low-power modes have been forcibly disabled in the DragonFly version of
this driver in order to keep it blob-free.

* Basic Broxton (BXT) support

* Various Displayport improvements including optimized link training,
increased robustness, and automated support for compliance testing

* Execlist overhead reduced

* Frequency boost tuning

* Plenty of bugfixes all around

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drm/i915: Update to Linux 4.1

* Valleyview support has been vastly improved and is no longer considered
preliminary

* Skylake support improvements: runtime power management, turbo and sleep
sta

drm/i915: Update to Linux 4.1

* Valleyview support has been vastly improved and is no longer considered
preliminary

* Skylake support improvements: runtime power management, turbo and sleep
states should now be fully operational.
Many workarounds have been added for Skylake specific issues

* Preliminary changes to prepare for Broxton (future Atom SOCs) support

* Distinguish hardware minimum and user minimum frequencies. Set the GPU
frequency to the hardware minimum on idle in order to reduce power usage

* DRRS (dynamic refresh rate switching) is now enabled where supported.
The idea is to reduce the refresh rate of the panel to save power when
nothing changes on the screen

* DP deadlock bugfixes and improved link rate computation. Intermediate
link rate support for eDP 1.4

* XenGT client-side support. This is paravirtualization to allow virtual
machines to tap into the render engines

* Plenty of internal work to prepare for atomic mode setting

* Lots of other smaller work all over such as added documentation, dead
UMS code removal, vblank interrupt cleanings, etc...

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drm/i915: Upgrade to Linux 4.0

* Basic Skylake support

* Panel Self-Refresh (PSR) now supported on Valleyview and Cherryview

* Preparations for atomic display updates

* Performance improvements o

drm/i915: Upgrade to Linux 4.0

* Basic Skylake support

* Panel Self-Refresh (PSR) now supported on Valleyview and Cherryview

* Preparations for atomic display updates

* Performance improvements on various GPU families, including Cherryview,
Broadwell and Haswell

* GPU frequencies are now kept at a minimum of 450MHz when possible
on Haswell and Broadwell, ensuring a minimum experience level for
various types of workloads

* Improved reset support for gen3/4 GPUs, which should fix some OpenGL
crashes on Core 2 and pre-2012 Atom machines

* Better sound/graphics driver synchronization for audio over hdmi support

* As usual, small bugfixes and stability improvements here and there

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drm: Remove the MODULE_LICENSE and EXPORT_SYMBOL_GPL macros

It's not clear what they are supposed to do and the drm code
is not under a GPL license anyway.

drm/i915: Update to Linux 3.17

* With an Haswell stability fix from Linux 3.19

* Display-Port code not completely synced with Linux 3.17, this was
breaking things as noticed by Rimvydas Jasinskas

drm/i915: Update to Linux 3.17

* With an Haswell stability fix from Linux 3.19

* Display-Port code not completely synced with Linux 3.17, this was
breaking things as noticed by Rimvydas Jasinskas

* Broadwell and Cherryview support improvements

* Runtime power-management improvements

* Panel Self-Refresh (PSR) now enabled by default on Haswell and Broadwell,
leading to further power savings

* Interrupt handling improvements

* backlight brightness locking fixes by Yellow Rabbit

* As usual, all sort of little fixes everywhere

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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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drm/i915: Update to Linux 3.14

Changes specific to the DragonFly driver:

* Most GEM code paths are now similar to Linux, leading to increased
stability and performance.
Making this change was g

drm/i915: Update to Linux 3.14

Changes specific to the DragonFly driver:

* Most GEM code paths are now similar to Linux, leading to increased
stability and performance.
Making this change was greatly helped by studying the OpenBSD code.

* We were previously using legacy functions to set up page table entries and
this was starting to become a serious problem on particular platforms such
as gen4 or Broadwell. As of this commit, we now use the same chip-specific
virtual functions as Linux.

* RC6 and Frame Buffer Compression power savings enabled by default, depending
on the GPU family

Changes brought by the Linux 3.11 => 3.14 driver update:

* Various bug fixes on all GPU generations, especially stability improvements

* Power consumption improvements

* Many Valleyview/Baytrail support improvements

* The giant 128MB L4 cache is now enabled when present on Haswell

* Added support for Broadwell GPUs

* HDMI 4K support

* basic support for 3D/stereo displays on HDMI

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drm/i915: Remove intel_encoder_noop and intel_crtc_noop()

Reducing differences with Linux 3.10

drm: Sync drm_crtc.c and drm_crtc_helper.c with Linux 3.10

drm: Implement and use the Linux version of kfree()

drm: Consolidate memory allocation types

* The DRM subsystem was using many different kmalloc types for no
good reason

* Some types were only used twice (1x kmalloc() and 1x kfree() calls)

* Rem

drm: Consolidate memory allocation types

* The DRM subsystem was using many different kmalloc types for no
good reason

* Some types were only used twice (1x kmalloc() and 1x kfree() calls)

* Remove that useless complexity and only keep one kmalloc type for
the whole DRM subsystem and its drivers

Inspired-by: OpenBSD

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drm: Reduce differences with Linux 3.8

* Support the DRM_CAP_TIMESTAMP_MONOTONIC IOCTL

* Improvements in CRTC, connectors and EDID/modes handling

drm: Reduce differences with Linux 3.8

Rename mode_config.lock to mode_config.mutex

drm: Use an include directory hierarchy similar to the Linux one

drm: Merge the drm and drm2 implementations

* Move the drm2 i915 driver to sys/dev/drm/i915kms

* The legacy i915 driver remains untouched

* Only sys/dev/drm/ shall remain