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| author | Erik Faye-Lund <erik.faye-lund@collabora.com> | 2022-09-18 11:36:55 +0200 |
|---|---|---|
| committer | Marge Bot <emma+marge@anholt.net> | 2022-09-23 10:49:08 +0000 |
| commit | 88ed8245a8cf3e902b2b11ade8adfe7ac623d159 (patch) | |
| tree | 18cb92aa1ef77da006955488327e8f4207068f6d /docs/amber.rst | |
| parent | eded5bda4ef1fe5fa90d794b3ed79312bbab58cf (diff) | |
| download | mesa-88ed8245a8cf3e902b2b11ade8adfe7ac623d159.tar.gz | |
docs: add an amber article
This gives a brief introduction to the Amber branch, and where to
find documentation for it.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18648>
Diffstat (limited to 'docs/amber.rst')
| -rw-r--r-- | docs/amber.rst | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/docs/amber.rst b/docs/amber.rst new file mode 100644 index 00000000000..d80a6db19e9 --- /dev/null +++ b/docs/amber.rst @@ -0,0 +1,46 @@ +Amber Branch +============ + +After Mesa 21.3, all non-Gallium DRI drivers were removed from the Mesa +source-tree. These drivers are still being maintained to some degree, +but only on the 21.3.x branch, and only for critical fixes. + +These drivers include: + +- radeon +- r200 +- i915 +- i965 +- nouveau (the DRI driver for NV04-NV20) + +At the same time, the OpenSWR Gallium driver was removed from the Mesa +source-tree, because it was already practically speaking unmaintained and +the actively maintained LLVMpipe offers much of the same functionality. + +Users with Intel GPUs that were using i965 should migrate to either Iris +or Crocus, depending on their GPU. These drivers generally speaking both +perform better and have more features than i965 had, and due to sharing +more code with the rest of the Mesa infrastructure, gets more bugfixes +and features. + +Similarly, users of i915 should migrate to i915g (the Gallium driver for +the same hardware), as it's still being maintained. + +Users who depend on the removed drivers will have to use them built from +the Amber branch in order to get updates. + +Building +-------- + +The Amber branch has some extra logic to be able to coexist with recent +Mesa releases without them stepping on each others toes. In order to +enable that logic, you need to pass the ``-Damber=true`` flag to Meson. + +Documentation +------------- + +On `docs.mesa3d.org <https://docs.mesa3d.org/>`, we currently only +publish the documentation from our main branch. But you can view the +documentation for the Amber branch `here +<https://gitlab.freedesktop.org/mesa/mesa/-/tree/21.3/docs>`_. + |