40 lines
1.3 KiB
ReStructuredText
40 lines
1.3 KiB
ReStructuredText
Asahi
|
|
=====
|
|
|
|
The Asahi driver aims to provide an OpenGL implementation for the Apple M1.
|
|
|
|
Testing on macOS
|
|
-----------------
|
|
|
|
On macOS, the experimental Asahi driver may built with options:
|
|
|
|
-Dosmesa=true -Dglx=xlib -Dgallium-drivers=asahi,swrast
|
|
|
|
To use, set the ``DYLD_LIBRARY_PATH`` environment variable:
|
|
|
|
DYLD_LIBRARY_PATH=/Users/nobody/mesa/build/src/gallium/targets/libgl-xlib/ glmark2 --reuse-context
|
|
|
|
Only X11 apps are supported. XQuartz must be setup separately.
|
|
|
|
Wrap (macOS only)
|
|
-----------------
|
|
|
|
Mesa includes a library that wraps the key IOKit entrypoints used in the macOS
|
|
UABI for AGX. The wrapped routines print information about the kernel calls made
|
|
and dump work submitted to the GPU using agxdecode.
|
|
|
|
This library allows debugging Mesa, particularly around the undocumented macOS
|
|
user-kernel interface. Logs from Mesa may compared to Metal to check that the
|
|
UABI is being used correcrly.
|
|
|
|
Furthermore, it allows reverse-engineering the hardware, as glue to get at the
|
|
"interesting" GPU memory.
|
|
|
|
The library is only built if ``-Dtools=asahi`` is passed. It builds a single
|
|
``wrap.dylib`` file, which should be inserted into a process with the
|
|
``DYLD_INSERT_LIBRARIES`` environment variable.
|
|
|
|
For example, to trace an app ``./app``, run:
|
|
|
|
DYLD_INSERT_LIBRARIES=~/mesa/build/src/asahi/lib/libwrap.dylib ./app
|