Panfrost ======== The Panfrost driver stack includes an OpenGL ES implementation for Arm Mali GPUs based on the Midgard and Bifrost microarchitectures. It is **conformant** on Mali G52 but **non-conformant** on other GPUs. The following hardware is currently supported: ========= ============ ============ ======= Product Architecture OpenGL ES OpenGL ========= ============ ============ ======= Mali T720 Midgard (v4) 2.0 2.1 Mali T760 Midgard (v5) 3.1 3.1 Mali T820 Midgard (v5) 3.1 3.1 Mali T860 Midgard (v5) 3.1 3.1 Mali G72 Bifrost (v6) 3.1 3.1 Mali G31 Bifrost (v7) 3.1 3.1 Mali G52 Bifrost (v7) 3.1 3.1 ========= ============ ============ ======= Other Midgard and Bifrost chips (T604, T620, T830, T880, G71, G51, G76) may work but may be buggy. End users are advised against using Panfrost on unsupported hardware. Developers interested in porting will need to allowlist the hardware (``src/gallium/drivers/panfrost/pan_screen.c``). Older Mali chips based on the Utgard architecture (Mali 400, Mali 450) are supported in the Lima driver, not Panfrost. Lima is also available in Mesa. Other graphics APIs (Vulkan, OpenCL) are not supported at this time. Building -------- Panfrost's OpenGL support is a Gallium driver. Since Mali GPUs are 3D-only and do not include a display controller, Mesa uses kmsro to support display controllers paired with Mali GPUs. If your board with a Panfrost supported GPU has a display controller with mainline Linux support not supported by kmsro, it's easy to add support, see the commit ``cff7de4bb597e9`` as an example. LLVM is *not* required by Panfrost's compilers. LLVM support in Mesa can safely be disabled for most OpenGL ES users with Panfrost. Build like ``meson . build/ -Ddri-drivers= -Dvulkan-drivers= -Dgallium-drivers=panfrost -Dllvm=disabled`` for a build directory ``build``. For general information on building Mesa, read :doc:`the install documentation <../install>`. Chat ---- Panfrost developers and users hang out on IRC at ``#panfrost`` on OFTC. Note that registering and authenticating with `NickServ` is required to prevent spam. `Join the chat. `_