drm: Add a linux/jiffies.h implementation

* timespec_to_jiffies() inspired by the OpenBSD implementation

* Other code from existing drm files

drm: Add a linux/time.h implementation

Move some code already present elsewhere to the new file.

drm/i915: New IRQ management code from Linux

* Move some functions around, they were defined in different files
than in Linux

* Add some Haswell and Valleyview support code

* Generally reduce di

drm/i915: New IRQ management code from Linux

* Move some functions around, they were defined in different files
than in Linux

* Add some Haswell and Valleyview support code

* Generally reduce differences with Linux 3.8.13

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drm: Use the Linux timer API

Reduce differences with Linux 3.8.13

kernel/drm: use devfs_*_cdevpriv functions

drm relied on a custom hack to implement those functions, this hack
has now been removed, and the devfs based functions are used.

Some fixes to allow building with gcc44.

Most of them for type redefinitions which gcc47 has stopped warning about
(if they are compatible).

The libstdc++ fix is modeled after gcc47's libstdc++. We

Some fixes to allow building with gcc44.

Most of them for type redefinitions which gcc47 has stopped warning about
(if they are compatible).

The libstdc++ fix is modeled after gcc47's libstdc++. We don't have
__libc_C_ctype_[] anymore.

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drm/ttm: Use the Linux wait queues API

Reducing differences with Linux 3.9 (ttm) and Linux 3.8 (rest of the code)

drm: Reduce differences with Linux 3.8

* Support the DRM_CAP_TIMESTAMP_MONOTONIC IOCTL

* Improvements in CRTC, connectors and EDID/modes handling

drm: Manage struct drm_file with Linux list APIs

drm: Implement and use drm_send_vblank_event()

drm/drm_bufs.c: Reduce differences with Linux

Make sure functions have the same prototypes and top of body comments as their
corresponding versions in Linux 3.9

drm: Fix DRM_CURRENTPID macro

Spotted-by: joris

drm: Reduce differences with Linux 3.8

drm: Import asm/uaccess.h from FreeBSD's OFED stack

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: Convert idr spinlocks to lockmgr locks

* Since the idr code uses blocking calls in some code paths we can't
hold spin locks accross idr calls

* This commit and the idr infinite loop one fix

drm: Convert idr spinlocks to lockmgr locks

* Since the idr code uses blocking calls in some code paths we can't
hold spin locks accross idr calls

* This commit and the idr infinite loop one fix system freeze issues
with some Xorg operations involving a huge number of pixmaps

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drm: Rename drm_debug_flag to drm_debug

kernel/drm: Remove an unused MALLOC_DECLARE.

drm: drm_drawable.c has been useless for years

Remove it.

drm: Use Linux atomic types and functions

Opportunistically sync to Linux 3.8 when possible

drm: Import linux/kernel.h from FreeBSD's OFED stack

drm: Import linux/bitops.h from the FreeBSD OFED stack

drm: Replace drm_atomic.h by linux/atomic.h from FreeBSD's OFED stack