-# MESA Driver sponsored by NLNet
+# MESA Driver sponsored by NLnet
todo http://lists.libre-soc.org/pipermail/libre-soc-dev/2020-August/000246.html
-# build instructions, by vivek
+# Build Instructions (by Cole from Vivek's comments on the mailing list)
-Sure I will add details about how to build the code, I use basically meson
-and ninja commands,
-My build directory located in mesa source here is my meson command to
-configure (I know this does more work than require please add more options
-if you find useful):
+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.
- meson -Dbuildtype=debug -Dprefix=/home/vivek/install -Dvulkan-drivers=libresoc ..
+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`.
-and then
+First, we need to install the necessary apt dependencies for building `drm` and `mesa`.
- ninja
- ninja install.
+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:
-I also have script to set few environment variables like
+ echo "deb http://deb.debian.org/debian buster-backports main" | tee \
+ -a /etc/apt/sources.list
- export VK_ICD_FILENAMES=/home/vivek/install/share/vulkan/icd.d/libresoc_icd.x86_64.json
+Install `meson` (version 52.0 or later):
+
+ apt-get update -y
+ apt-get install -y -t buster-backports meson
+
+Then install the necessary packages by running the following commands as root:
+
+ apt-get update -y
+ apt-get upgrade -y
+ apt-get install -y build-essential \
+ cmake \
+ git \
+ pkg-config \
+ libatomic-ops-dev \
+ libcairo2-dev \
+ libcunit1-dev \
+ libpciaccess-dev \
+ libunwind-dev \
+ llvm-8 \
+ llvm-8-dev \
+ python3.7 \
+ python3.7-dev \
+ python3-setuptools \
+ libzstd-dev \
+ libzstd1 \
+ zlib1g
+
+Then, still as root, run the following to get the necessary dependencies for building `drm` and `mesa`.
+
+ apt-get build-dep -y libdrm
+ apt-get build-dep -y mesa
+
+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.
+
+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.
+
+ mkdir -p ~/opt/lsoc_mesa
+ cd ~/opt
+
+Now clone `drm` from mesa's gitlab. Change to the `drm` directory. Create a build directory and cd into it.
+
+ git clone https://gitlab.freedesktop.org/mesa/drm.git
+ cd drm
+ mkdir build && cd build
+
+In order to configure `drm` for building and installation run the following command. It is very important to specify `prefix=/home/$USER/opt/lsoc_mesa` because as mentioned above we need these files for development purposes, but we do not want to corrupt or interfere with our *system* `drm` libraries.
+
+ meson -Dbuildtype=release -Dprefix=/home/$USER/opt/lsoc_mesa ..
+
+After configuration has completed, run ninja to build and install the `drm` libraries.
+
+ ninja install
+
+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`.
+
+ export PKG_CONFIG_PATH=~/opt/lsoc_mesa/lib/x86_64-linux-gnu/pkgconfig/
+
+These following `vulkan`-specific environment variables are necessary to build our branch of mesa successfully:
+
+ export VK_ICD_FILENAMES=/home/$USER/opt/lsoc_mesa/share/vulkan/icd.d/libresoc_icd.x86_64.json
export VK_LOADER_DEBUG=warn
export LIBRESOC_TRACE=1
+Now change back to the base `~/opt` directory and clone the `mesa` git repo from the `mesa` gitlab instance. Change to the `mesa` directory. Create a build directory and cd into it.
+
+ cd ~/opt
+ git clone https://git.libre-soc.org/git/mesa.git
+ git pull --rebase origin libresoc_dev
+ git checkout -b libresoc_dev
+ cd mesa
+ mkdir build && cd build
+
+In order to configure `mesa` for building and installation run the following command. Again, it is *very* important to specify `prefix=/home/$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.
+
+ meson -Dbuildtype=debug -Dprefix=/home/$USER/opt/lsoc_mesa \
+ -Dvulkan-drivers=libre-soc ..
+
+After configuration has completed, run ninja to build and install the `mesa` libraries.
+
+ ninja install
+
+# From here on is solely Vivek's instructions
+
To test the code I am sing simple tests built by
+
https://github.com/GameTechDev/IntroductionToVulkan
I am also using debug build for vulkan loader if any one interested in that
please look at
https://github.com/KhronosGroup/Vulkan-Loader/blob/master/BUILD.md
+
+I have pushed code to the new branch
+https://gitlab.freedesktop.org/vivekvpandya/mesa/-/tree/libresoc_dev
+previously it was on master so it will cause me problems working on master
+branch.
+
+# Running vulkan intro tutorial
+
+* <https://github.com/GameTechDev/IntroductionToVulkan/tree/master/Project/Tutorials/01>
+* <http://lists.libre-soc.org/pipermail/libre-soc-dev/2020-August/000368.html>
+
+# Demos with lavapipe
+
+> It can be built with
+> meson configure -Dvulkan-drivers=swrast -Dgallium-drivers=swrast
+> set VK_ICD_FILENAMES to the lvp_icd.x86_64.json file and vulkaninfo should
+> show it.
+>
+> I tried running demos from
+> https://software.intel.com/content/www/us/en/develop/articles/api-without-
+> secrets-introduction-to-vulkan-part-1.html and all 7 runs fine with lavapipe.
+
+* <https://bugs.libre-soc.org/show_bug.cgi?id=251#c58>
projects / libreriscv.git / blobdiff