xref: /aosp_15_r20/external/mesa3d/src/broadcom/drm-shim/README.md (revision 6104692788411f58d303aa86923a9ff6ecaded22)
1### v3d_noop backend
2
3This implements the minimum of v3d in order to make shader-db work.
4The submit ioctl is stubbed out to not execute anything.
5
6Export `MESA_LOADER_DRIVER_OVERRIDE=v3d
7LD_PRELOAD=$prefix/lib/libv3d_noop_drm_shim.so`.  This will be a V3D
84.2 device.
9
10### vc4_noop backend
11
12This implements the minimum of vc4 in order to make shader-db work.
13The submit ioctl is stubbed out to not execute anything.
14
15Export `MESA_LOADER_DRIVER_OVERRIDE=vc4
16LD_PRELOAD=$prefix/lib/libvc4_noop_drm_shim.so`.  This will be a VC4
172.1 device.
18
19