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: Add drm_hdmi_avi_infoframe_from_display_mode()

Obtained-From: Linux

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

drm: Sync drm_edid.c and drm_modes.c with Linux 3.9.11

drm/i915: Update to Linux 3.9.11

* Various bug fixes and small improvements

* Better handling of GPU hangs, improved driver robustness

* Support for the display power well on Haswell GPUs

* Suppo

drm/i915: Update to Linux 3.9.11

* Various bug fixes and small improvements

* Better handling of GPU hangs, improved driver robustness

* Support for the display power well on Haswell GPUs

* Support for more Haswell GPU (PCI ID) models

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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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kernel/drm: Fix -Winit-self.

While here, define __must_check to __heedresult, the equivalent in
DragonFly, and fix one warning which fell out.

drm: Reduce differences with Linux 3.8

* Support the DRM_CAP_TIMESTAMP_MONOTONIC IOCTL

* Improvements in CRTC, connectors and EDID/modes handling

drm: Sync a few headers with Linux 3.8

drm: Rename device to dev in struct drm_device

Reducing differences with Linux

kernel: Fix a bunch of drm warnings.

drm: Reduce differences with Linux 3.8

Rename mode_config.lock to mode_config.mutex

drm: Rename drm_debug_flag to drm_debug

drm: Use Linux atomic types and functions

Opportunistically sync to Linux 3.8 when possible

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

drm: Sync with FreeBSD

* As of commit r255045 (2013-08-30):
'u_long' is consistently spelled 'unsigned long' in this file. Fix it.

* Some of the changes are bug fixes, including a few memory lea

drm: Sync with FreeBSD

* As of commit r255045 (2013-08-30):
'u_long' is consistently spelled 'unsigned long' in this file. Fix it.

* Some of the changes are bug fixes, including a few memory leaks

* Others are necessary groundwork for the Radeon KMS driver

* Some new files were imported from Linux 3.8-rc3

* Support for E-DDC has been added

* Many atomic routines were revisited to make them more compatible with
the Linux APIs and run-time behavior

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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