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/radeon: Update to Linux 4.7.10

* Various bugfixes, especially related to Displayport and
vblank handling

* Sea Islands and Southern Islands GPUs support improvements

* Various quirks to fix

drm/radeon: Update to Linux 4.7.10

* Various bugfixes, especially related to Displayport and
vblank handling

* Sea Islands and Southern Islands GPUs support improvements

* Various quirks to fix problems for specific cards, mostly
Radeon R7 370 and Radeon R9 270X models

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drm/radeon: Update to Linux 4.4.180

* Bugfixes and workaround for hardware issues, including
quirks for various R7 370 and R9 270 models

* VT switching fixes from dillon@

* Fan management improv

drm/radeon: Update to Linux 4.4.180

* Bugfixes and workaround for hardware issues, including
quirks for various R7 370 and R9 270 models

* VT switching fixes from dillon@

* Fan management improvements

* Improved support for 120+ Hz monitors

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drm/radeon: Upgrade to Linux 3.19.8

* Various bug fixes and hardware bug workarounds

* Fan control improvements, especially on Southern Islands (SI)
and Sea Islands (CI) GPUs

* Performance impro

drm/radeon: Upgrade to Linux 3.19.8

* Various bug fixes and hardware bug workarounds

* Fan control improvements, especially on Southern Islands (SI)
and Sea Islands (CI) GPUs

* Performance improvements due to better memory management

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Revert "Update drm/radeon to Linux 4.7.10 as much as possible..."

This caused severe issues on some modern radeon models (e.g. Kaveri APUs).
Not reverting the 62dc643ef61b347c4c2e60ad9ea68dd766741c9

Revert "Update drm/radeon to Linux 4.7.10 as much as possible..."

This caused severe issues on some modern radeon models (e.g. Kaveri APUs).
Not reverting the 62dc643ef61b347c4c2e60ad9ea68dd766741c90 commit, it's just
a 2 character diff that was conflicting with this change.

This reverts commit a7a95252afec8bfcc34ee5b8725136b17b77043f.

Tested-By: ivadasz
Reported-By: several people on #dragonflybsd

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drm/radeon: Fix firmware paths and add missing modules

Update drm/radeon to Linux 4.7.10 as much as possible...

...before other kernel changes.

drm/linux: Improve request_firmware() compatibility

request_firmware() takes a pointer to a Linux struct device as
third parameter.

drm: Implement and use Linux struct device

drm/radeon: Expand atomic_cmpxchg() use in UVD/VCE

I somehow lost this one in a pile. Likely fixes few bugs on msg packet destroy.

drm/radeon: Use atomic_cmpxchg()

Possibly fixing a few bugs in the process

drm/radeon: Update to Linux 3.17 (v2)

Catch up with recent updates in i915kms driver.
While there perform some cleaning in drm and drm/ttm too.

This smallish(1.2MB) diff between Linux v3.12..v3.17

drm/radeon: Update to Linux 3.17 (v2)

Catch up with recent updates in i915kms driver.
While there perform some cleaning in drm and drm/ttm too.

This smallish(1.2MB) diff between Linux v3.12..v3.17 brings
few improvements for radeon cards support on DragonFly BSD.

Driver is VERY experimental even if FF 720p "Hey Mamma"
looks much more pleasing to the eyes on my Xeon box.

Me being Fortran developer(who wants to run OpenCL on BSDs too)
was literally throwing diffs at the fan to see what sticks on.
After cleaning up the mess a bit, these features seems to behave:
kms-syscons switching on R7 240 and 5770 JUNIPER;
current DPorts Xorg;
Xorg-next(1.17.2) + Mesa-next(glamor for radeonsi);
2D tiling now works out of the box on OLAND;
glxgears/cubemap/cuberender mesa demos;
firefox youtube videos(still some blinking on overlays);
mpv -vo vdpau --hwdec=vdpau bsd-0088.mp4 (--vo=opengl too);
UVD (decoding limited to 1080p frame streams);
fragging in OpenArena maxed-out(even ttys[0-8] to quickly check mail);
hdmi audio;
DPM (enabled by default);
gpu temperature monitoring through hw.sensors framework;
automatic firmware loading.

TODO:
update drm/ttm, any help would be really appreciated;
ww_mutex, yep still good old "homegrown" locks;
vma, newer shrinker api;
dma_buf/prime;
iic/i2c rework;
kldunload radeonkms;
better gart sizes support;
newer firmware format support;
fix failing ring sync test to ring-5(UVD);
check how driver supports X2 and IGP cards;
better OpenCL through Clover;
many more.

Thanks goes to:
ftigeot@efnet for opportunity and i915 work
YRabbit@efnet for extensive testing of hdmi A/V on TURKS
ivadasz@efnet for temperature sensors support
mneumann@efnet for testing on HAWAII

AMD for investing time and effort in opensource drivers
NetBSD and Linux gpu developers

Special thanks to:
everyone behind freebsd-ports-graphics/opencl (keep pushing the mngt!)

and that Sweet special girl out there.

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