MFC r290665:

Build all of sys/modules with SUBDIR_PARALLEL.

drm: Allow parallel builds of drivers and firmwares

Submitted by: hps@
MFC of: r279600

drm: Update the device-independent code to match Linux 3.8.13

This update brings few features:
o Support for the setmaster/dropmaster ioctls. For instance, they
are used to run multiple X servers simultaneously.
o Support for minor devices. The only user-visible change is a new
entry in /dev/dri but it is useless at the moment. This is a
first step to support render nodes [1].

The main benefit is to greatly reduce the diff with Linux (at the
expense of an unreadable commit diff). Hopefully, next upgrades will be
easier.

No updates were made to the drivers, beside adapting them to API
changes.

[1] https://en.wikipedia.org/wiki/Direct_Rendering_Manager#Render_nodes

r280814 is merged at the same time to avoid a short window where RANDR
might be broken:

drm: Import Linux commit 9bc3cd5673d84d29272fa7181a4dfca83cbb48c1

Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri May 31 12:17:08 2013 +0000

drm: Sort connector modes based on vrefresh

Keeping the modes sorted by vrefresh before the pixel clock makes the
mode list somehow more pleasing to the eye.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

PR: 198936 (r280814)
Tested by: Many people
MFC of: r280183, r280187 (original commit by glebius), r280814
Relnotes: yes

MFC r270572: drm/i915: Disable the build of i915 on PC98

This module is of no use on this platform.

MFC r277487:
An update for the i915 GPU driver, which brings the code up to Linux
commit 4d93914ae3db4a897ead4b.

MFC r277959 (by adrian):
Fix backlight for ivybridge based laptops (and whatever else comes through
this codepath.)

MFC r278146:
Do not attach to the unsupported chipsets, unless magic tunable is
frobbed.

MFC r278147, r278148:
Fix sign for the error code returned from the driver-specific code.

MFC r278152:
Do not access gmbus_ports array past its end.

MFC r278159 (by emaste):
Remove duplicate intel_fbc_enabled prototype.

MFC r270571 (by dumbbell):
drm/i915: Add opt_acpi.h and acpi_if.h to the source files

MFC r273862,273902:

Port the TTM AGP backend to the FreeBSD agp driver and enable AGP support
in the radeonkms driver.

Note: In PCI mode virtual addresses on the graphics card that map to system
RAM are translated to physical addresses by the graphics card itself. In
AGP mode address translation is done by the AGP chipset so fictitious
addresses appear on the system bus. For the CPU cache management to work
correctly when the CPU accesses this memory it needs to use the same
fictitious addresses (and let the chipset translate them) instead of using
the physical addresses directly.

Reviewed by: kib

drm/i915: Add HW context support

This feature is required by Mesa 9.2+. Without this, a GL application
crashes with the following message:
# glxinfo
name of display: :0.0
Gen6+ requires Kernel 3.6 or later.
Assertion failed: (ctx->Version > 0), function handle_first_current,
file ../../src/mesa/main/context.c, line 1498.
Abort (core dumped)

Now, Mesa 10.2.4 and 10.3-rc3 works fine:
# glxinfo
name of display: :0
display: :0 screen: 0
direct rendering: Yes
...
OpenGL renderer string: Mesa DRI Intel(R) 965GM
OpenGL version string: 2.1 Mesa 10.2.4
...

The code was imported from Linux 3.8.13.

This an MFC of r271705.

Approved by: re (glebius)
Reviewed by: kib@
Tested by: kwm@, danfe@, Henry Hu,
Lundberg, Johannes <johannes@brilliantservice.co.jp>,
Johannes Dieterich <dieterich.joh@gmail.com>,
Lutz Bichler <lutz.bichler@gmail.com>,
Relnotes: yes

drm/radeon: Add 32bit ioctls support

This allows to run 32bit applications on a 64bit host. This was tested
successfully with Wine (emulators/i386-wine-devel) and StarCraft II.

Submitted by: Jan Kokemüller <jan.kokemueller@gmail.com>

MFC 259016,259019,259049,259071,259102,259110,259129,259130,259178,259179,
259203,259221,259261,259532,259615,259650,259651,259667,259680,259727,
259761,259772,259776,259777,259830,259882,259915,260160,260449,260450,
260688,260888,260953,261269,261547,261551,261552,261553,261585:
Merge the vt(4) driver (newcons) to stable/10.

Approved by: ray

MFC r260102:

Similar to r260020, only use -fms-extensions with gcc, for all other
modules which require this flag to compile. Use a GCC_MS_EXTENSIONS
variable, defined in kern.pre.mk, which can be used to easily supply the
flag (or not), depending on the compiler type.

MFC r260322:

In addition to r260102, also define GCC_MS_EXTENSIONS in bsd.sys.mk,
since kernel module builds do not use kern.pre.mk.

Revert MFC of r260102 for now, until I can merge the required fix from
head. This should fix building modules which require -fms-extensions to
compile them with gcc.

MFC r260019:

For some files under sys/dev/drm2/i915, turn off warnings about unused
functions and variables, since they are contributed code.

MFC r260020:

For sys/dev/drm2/radeon, only use -fms-extensions with gcc. This flag
is only to stop gcc complaining about anonymous unions, which clang does
not do. For clang 3.4 however, -fms-extensions enables the Microsoft
__wchar_t type, which clashes with our own types.h.

MFC r260102:

Similar to r260020, only use -fms-extensions with gcc, for all other
modules which require this flag to compile. Use a GCC_MS_EXTENSIONS
variable, defined in kern.pre.mk, which can be used to easily supply the
flag (or not), depending on the compiler type.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

drm/radeon: Disable build on i386/pc98

drm/radeon: Import the Radeon KMS driver

This driver is based on Linux 3.8 and a previous effort by kan@.

More informations about this project can be found on the FreeBSD wiki:
https://wiki.freebsd.org/AMD_GPU

The driver is split into:

sys/dev/drm2:
The driver sources.

sys/modules/drm2/radeonkmw:
The driver main kernel module's Makefile.

sys/modules/drm2/radeonkmsfw:
All firmware kernel module Makefiles. There's one directory and one
Makefile for each firmware.

sys/contrib/dev/drm2/radeonkmsfw:
All firmware binary sources.

tools/tools/drm/radeon
Tools to update firmwares or regenerate some headers.

Merging the driver to FreeBSD 9.x may be possible but not a priority for
now.

Help from: kib@, kan@
Tested by: avg@, kwm@, ray@,
Alexander Yerenkow <yerenkow@gmail.com>,
Anders Bolt-Evensen <andersbo87@me.com>,
Denis Djubajlo <stdedjub@googlemail.com>,
J.R. Oldroyd <fbsd@opal.com>,
Mikaël Urankar <mikael.urankar@gmail.com>,
Pierre-Emmanuel Pédron <pepcitron@gmail.com>,
Sam Fourman Jr. <sfourman@gmail.com>,
Wade <wade-is-great@live.com>,
(probably other I forgot...)
HW donations: kyzh, Yakaz

drm: Import drm_dp_helper.c from Linux 3.8-rc3

While here, update drm_dp_helper.h to better match Linux one.

drm: Import drm_buffer.[ch] from Linux 3.8-rc3

This will be used by the Radeon KMS driver.

Import the preliminary port of the TTM.

The early commit is done to facilitate the off-tree work on the
porting of the Radeon driver.

Sponsored by: The FreeBSD Foundation
Debugged and tested by: dumbbell
MFC after: 1 month

Import the drm_global references helpers.

Sponsored by: The FreeBSD Foundation
MFC after: 1 month

Add drm and i915 ioctl translations for 32 bit process on 64 bit host.

Submitted by: meowthink@gmail.com
MFC after: 2 weeks

The drm2 modules makefiles commit.
Still not attached to the build.

Sponsored by: The FreeBSD Foundation
MFC after: 1 month