Move /VC4 to a nicer wiki.

1 files changed, 1 insertions, 173 deletions

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-## About the driver
-
-This is the Mesa and DRM driver for Broadcom VC4 hardware.  It is notably used in the Raspberry Pi hardware, including Raspberry Pi 2, and included as an option in the [2016-02-09 Rasbpian release](https://www.raspberrypi.org/downloads/raspbian/).
-
-Other information:
-
- * [Raspberry Pi Upstreaming](http://elinux.org/RPi_Upstreaming)
- * [Performance Debugging](VC4PerformanceDebugging)
- * [Userspace tools for driver debugging](https://github.com/anholt/vc4-gpu-tools)
-
-## Kernel driver status
-
-The V3D kernel driver is now upstream in kernel 4.5, and the devicetree for it is being pulled into kernel 4.7.  The merge of everything can be found in linux-next.
-
-The Raspberry Pi Foundation's [kernel tree](https://github.com/raspberrypi/linux) includes the driver in the current rpi-update 4.4 branch, but it's disabled until you choose the "new OpenGL driver" option in raspi-config.  Guides here will only cover upstream code; for downstream, the raspi-config is all you need.
-
-## 3D driver status
-
-The 3D driver can be found at: <http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/vc4>
-
-* 93.0% passrate on piglit gpu.py on simulation
-* 92.4% passrate on piglit quick.tests on Raspberry Pi
-* 93.9% passrate on deqp es2 tests in simulation
-
-### Bug reporting
-
-Bugs are tracked on my github repositories.  The [kernel](https://github.com/anholt/linux/issues) repository covers module probing, display problems, and whole-system crashes.  The [mesa](https://github.com/anholt/mesa/issues) repository covers graphics rendering bugs, 3D performance, and 3D features.
-
-Feel free to use bare "+1" comments on bugs that impact you, so that I can use participant count as a rough prioritization guide.
-
-## Building the upstream kernel (bcm2835 architecture)
-
-This is not a complete guide, just some details you'll definitely need.
-
-Get the kernel from [linux-next](https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/).
-
-     git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-     cd linux
-     git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
-     git fetch linux-next
-     git checkout next-TODAYSDATE
-
-You need current firmware (2016-04-19) in order to use a plain upstream kernel without running magic scripts on it.  You should reboot after this to make sure that you're fine with the new firmware and your new kernel isn't the problem.
-
-     sudo rpi-update
-
-Build the kernel with:
-
-     make multi_v7_defconfig # if you have rpi2 or 32-bit rpi3
-     make bcm2835_defconfig # if you have rpi0/1/cm
-     make
-     sudo make zinstall modules_install dtbs_install
-
-The kernel will have installed under /boot with some version (make kernelrelease tells you what it was).  Update your config.txt to contain:
-
-     avoid_warnings=2     # VPU shouldn't smash our display setup.
-     kernel=vmlinuz-KERNELVERSION
-     device_tree=dtbs/KERNELVERSION/bcm2836-rpi-2-b.dtb
-
-(but replace bcm2836-rpi-2-b with the appropriate DT for your device present in that directory)
-
-Edit your cmdline.txt to add "cma=256M@256M"
-
-## Building mesa
-
-Current Mesa releases include support for vc4, but to build it yourself:
-
-    sudo apt-get build-dep libgl1-mesa-dri
-
-    # Individual packages for Mesa, if build-dep isn't enough.
-    sudo apt-get install \
-	autoconf \
-	bison \
-	flex \
-	gettext \
-	libdrm-dev \
-	libexpat1-dev \
-	libtool \
-	libudev-dev \
-	libx11-xcb-dev \
-	libxcb-dri2-0-dev \
-	libxcb-glx0-dev \
-	libxcb-xfixes0-dev \
-	libxdamage-dev \
-	libxext-dev \
-	libxfixes-dev \
-	python-mako \
-	x11proto-dri2-dev \
-	x11proto-gl-dev
-    # For the X Server
-    sudo apt-get install \
-	libgcrypt20-dev \
-	libpciaccess-dev \
-	libpixman-1-dev \
-	libxcb-keysyms1-dev \
-	libxfont-dev \
-	libxkbfile-dev \
-	libxxf86vm-dev \
-	x11proto-bigreqs-dev \
-	x11proto-composite-dev \
-	x11proto-record-dev \
-	x11proto-render-dev \
-	x11proto-resource-dev \
-	x11proto-scrnsaver-dev \
-	x11proto-video-dev \
-	x11proto-xcmisc-dev \
-	x11proto-xf86dri-dev \
-	x11proto-xinerama-dev \
-	xutils-dev \
-
-    git clone git://anongit.freedesktop.org/mesa/mesa
-    cd mesa
-    ./autogen.sh \
-     --prefix=$HOME/prefix \
-     --with-gallium-drivers=vc4 \
-     --with-dri-drivers= \
-     --with-egl-platforms=x11,drm
-
-## Building the X Server
-
-    sudo apt-get build-dep xorg
-
-    git clone git://anongit.freedesktop.org/xorg/xserver
-    cd xserver
-    ./autogen.sh \
-     --prefix=$HOME/prefix
-
-autogen will repeatedly fail due to various dependencies being missing.  Deal with them.
-
-Make $HOME/prefix/etc/X11/xorg.conf to select the modesetting driver:
-
-    Section "Files"
-            ModulePath   "/home/anholt/prefix/lib/xorg/modules"
-            FontPath     "/usr/share/fonts/X11/misc"
-            FontPath     "/usr/share/fonts/X11/75dpi"
-            FontPath     "/usr/share/fonts/X11/Type1"
-    EndSection
-    
-    Section "InputClass"
-    	Identifier "ev"
-    	Driver "evdev"
-    EndSection
-    
-    Section "InputClass"
-    	Identifier "syn"
-    	Driver "synaptics"
-    	MatchProduct "Synaptics"
-    EndSection
-    
-    Section "ServerFlags"
-    EndSection
-    
-    Section "Device"
-    	Identifier	"Configured Video Device"
-    	Driver "modesetting"
-    EndSection
-    
-    Section "Monitor"
-    	Identifier	"Configured Monitor"
-    EndSection
-    
-    Section "Screen"
-    	Identifier	"Default Screen"
-    	Monitor		"Configured Monitor"
-    	DefaultDepth    24
-    	SubSection "Display"
-    		Depth           24
-    	EndSubSection
-    EndSection
-
-Now, you can start the server using startx:
-
-    startx -- /home/anholt/prefix/bin/Xorg
+Moved to [github](https://github.com/anholt/mesa/wiki/VC4).