drm: Sync drm_context.c 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()

Revert "drm: Handle drm masters and minors like Linux"

This reverts commit 2aa08105f11f5815d087c0f6baea9af394bd323f.

Many people reported this commit breaked their Xorg setup.

drm: Handle drm masters and minors like Linux

* Make drm data structures more like their Linux versions

* Reduce differences with Linux 3.9.11 and use the same
idr-based mechanisms when possible

drm: Handle drm masters and minors like Linux

* Make drm data structures more like their Linux versions

* Reduce differences with Linux 3.9.11 and use the same
idr-based mechanisms when possible

* Create devices with the right minor numbers

* Use the same struct file.private_data mechanism Linux uses to pass
drm_file information, removing the need for the FreeBSD-originated
devfs cdevpriv code.

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drm: drm_detach() is drm_release()

Rename it in order to reduce differences with Linux.

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: Only define struct drm_sysctl_info once

drm: Add linux/device.h

drm: Sync drm_pci_alloc() with Linux 3.8.13

drm - Fix improper M_NOWAIT usage

* Remove numerous mis-uses of M_NOWAIT, replacing with M_WAITOK | M_NULLOK.

drm: Add linux/module.h and linux/moduleparam.h

Obtained-from: FreeBSD/OFED

drm: Add linux/mm.h

Obtained-from: FreeBSD's OFED framework

drm: Change sruct drm_local_map

Make it identical to the version from Linux 3.8.13.

drm: Rename drm_os_freebsd.h to drm_os_linux.h

Move DRM_READ() and DRM_WRITE() macros to the new file

drm: linux/io.h is really asm/io.h, rename it

While there, also add ioremap() and ioremap_wc() to the new file

drm: Remove some useless macros

dev/drm: Implement kqueue support; Wake up blocking reads

* Add a call to drm_event_wakeup() in drm/radeon.

* Flesh out the stubbed kqueue support.

* Blocking reads were not woken up because of a

dev/drm: Implement kqueue support; Wake up blocking reads

* Add a call to drm_event_wakeup() in drm/radeon.

* Flesh out the stubbed kqueue support.

* Blocking reads were not woken up because of a typo in the wakeup call.

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drm/i915: Clean up various non-critical files

Remove dead code and obsolete fields in various areas, reducing differences
with Linux 3.8.13.

drm: Add and use drm/drm_mem_util.h

Reducing differences with the Linux code base

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: Add Linux PCI headers

kernel/drm: Add back #include "opt_drm.h" to drmP.h so that DRM_DEBUG works.

drm: struct drm_driver.max_ioctl doesn't exist

Use num_ioctls like in Linux.

drm: Remove a no longer used kmalloc type