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

show more ...

kernel/drm: Decouple from network headers.

This removes all <net*/*.h> headers (including <sys/mbuf.h>) from
dependency chain in all drm devices. There is no need to use network
headers in drm c

kernel/drm: Decouple from network headers.

This removes all <net*/*.h> headers (including <sys/mbuf.h>) from
dependency chain in all drm devices. There is no need to use network
headers in drm compat layer. Previously drm was using <net/if_var.h>
as a fallback to get <sys/malloc.h>. Use kmalloc/kfree and M_* flags
in linux/gfp.h. At this point no system headers should be including
<sys/malloc.h> except for disk and vfs headers for obvious reasons.

Later on even M_* flags could be moved into <sys/_malloc.h> for better
separation to linux/slab.h.

show more ...

kernel/drm: Use va_*() instead of __va_*(), just like upstream.

drm/linux: Implement more kobject parts