3d_gpu/mesa.mdwn

   1 # MESA Driver sponsored by NLnet
   2
   3 todo http://lists.libre-soc.org/pipermail/libre-soc-dev/2020-August/000246.html
   4
   5 # Build Instructions (by Cole from Vivek's comments on the mailing list)
   6
   7 This tutorial assumes, like the rest of the info on the wiki, that you are running Debian 10.4 either natively or in a virtualized setup.
   8
   9 The following is available as scripts in the libre-soc dev-env-setup repo, and can be easily used by running `sudo ./install-mesa-apt-reqs && ./lsoc-mesa-dev-env-setup`.
  10
  11 First, we need to install the necessary apt dependencies for building `drm` and `mesa`.
  12
  13 In order to install a `meson` version recent enough to configure `mesa`, add buster-backports to /etc/apt/sources.list by running the following as root:
  14
  15     echo "deb http://deb.debian.org/debian buster-backports main" | tee \
  16      -a /etc/apt/sources.list
  17
  18 Install `meson` (version 52.0 or later):
  19
  20     apt-get update -y
  21     apt-get install -y -t buster-backports meson
  22
  23 Then install the necessary packages by running the following commands as root:
  24
  25     apt-get update -y
  26     apt-get upgrade -y
  27     apt-get install -y build-essential \
  28         cmake \
  29         git \
  30         pkg-config \
  31         libatomic-ops-dev \
  32         libcairo2-dev \
  33         libcunit1-dev \
  34         libpciaccess-dev \
  35         libunwind-dev \
  36         llvm-8 \
  37         llvm-8-dev \
  38         python3.7 \
  39         python3.7-dev \
  40         python3-setuptools \
  41         libzstd-dev \
  42         libzstd1 \
  43         zlib1g
  44
  45 Then, still as root, run the following to get the necessary dependencies for building `drm` and `mesa`.
  46
  47     apt-get build-dep -y libdrm
  48     apt-get build-dep -y mesa
  49
  50 Now we are going to build and install `drm` from source as the debian apt versions are not recent enough to build mesa. Run all of these command as a regular user, **DO NOT RUN AS ROOT** it is not necessary.
  51
  52 First, create our working directory `opt` in our user directory. In order to not mess with system `drm` and `mesa` libraries, also create a sub-directory `lsoc_mesa` to hold our header files and libraries. After creating the `opt` directory, cd into it to make it our active, current working directory.
  53
  54     mkdir -p ~/opt/lsoc_mesa
  55     cd ~/opt
  56
  57 Now clone `drm` from mesa's gitlab. Change to the `drm` directory. Create a build directory and cd into it.
  58
  59     git clone https://gitlab.freedesktop.org/mesa/drm.git
  60     cd drm
  61     mkdir build && cd build
  62
  63 In order to configure `drm` for building and installation run the following command. It is very important to specify `prefix=/home/$USER/opt/lsoc_mesa` because as mentioned above we need these files for development purposes, but we do not want to corrupt or interfere with our *system* `drm` libraries.
  64
  65     meson -Dbuildtype=release -Dprefix=/home/$USER/opt/lsoc_mesa ..
  66
  67 After configuration has completed, run ninja to build and install the `drm` libraries.
  68
  69     ninja install
  70
  71 In order for meson to be able to find the up-to-date `drm` files we have just built, we need to specify their location with the environment variable `PKG_CONFIG_PATH`.
  72
  73     export PKG_CONFIG_PATH=~/opt/lsoc_mesa/lib/x86_64-linux-gnu/pkgconfig/
  74
  75 These following `vulkan`-specific environment variables are necessary to build our branch of mesa successfully:
  76
  77     export VK_ICD_FILENAMES=/home/$USER/opt/lsoc_mesa/share/vulkan/icd.d/libresoc_icd.x86_64.json
  78     export VK_LOADER_DEBUG=warn
  79     export LIBRESOC_TRACE=1
  80
  81 Now change back to the base `~/opt` directory and clone the `mesa` git repo from the `mesa` gitlab instance. Change to the `mesa` directory. Create a build directory and cd into it.
  82
  83     cd ~/opt
  84     git clone https://git.libre-soc.org/git/mesa.git
  85     git pull --rebase origin libresoc_dev
  86     git checkout -b libresoc_dev
  87     cd mesa
  88     mkdir build && cd build
  89
  90 In order to configure `mesa` for building and installation run the following command. Again, it is *very* important to specify `prefix=/home/$USER/opt/lsoc_mesa` because as mentioned above we need these files for development purposes, but we do not want to corrupt or interfere with our *system* `mesa` libraries.
  91
  92     meson -Dbuildtype=debug -Dprefix=/home/$USER/opt/lsoc_mesa \
  93      -Dvulkan-drivers=libre-soc ..
  94
  95 After configuration has completed, run ninja to build and install the `mesa` libraries.
  96
  97     ninja install
  98
  99 # From here on is solely Vivek's instructions
 100
 101 To test the code I am sing simple tests built by
 102
 103     https://github.com/GameTechDev/IntroductionToVulkan
 104
 105 I am also using debug build for vulkan loader if any one interested in that
 106 please look at
 107
 108     https://github.com/KhronosGroup/Vulkan-Loader/blob/master/BUILD.md
 109
 110 I have pushed code to the new branch
 111 https://gitlab.freedesktop.org/vivekvpandya/mesa/-/tree/libresoc_dev
 112 previously it was on master so it will cause me problems working on master
 113 branch.
 114
 115 # Running vulkan intro tutorial
 116
 117 * <https://github.com/GameTechDev/IntroductionToVulkan/tree/master/Project/Tutorials/01>
 118 * <http://lists.libre-soc.org/pipermail/libre-soc-dev/2020-August/000368.html>
 119
 120 # Demos with lavapipe
 121
 122 > It can be built with
 123 > meson configure -Dvulkan-drivers=swrast -Dgallium-drivers=swrast
 124 > set VK_ICD_FILENAMES to the lvp_icd.x86_64.json file and vulkaninfo should
 125 > show it.
 126 >
 127 > I tried running demos from
 128 > https://software.intel.com/content/www/us/en/develop/articles/api-without-
 129 > secrets-introduction-to-vulkan-part-1.html and all 7 runs fine with lavapipe.
 130
 131 * <https://bugs.libre-soc.org/show_bug.cgi?id=251#c58>