xref: /aosp_15_r20/external/mesa3d/src/freedreno/drm-shim/README.md (revision 6104692788411f58d303aa86923a9ff6ecaded22)
1*61046927SAndroid Build Coastguard Worker### freedreno_noop backend
2*61046927SAndroid Build Coastguard Worker
3*61046927SAndroid Build Coastguard WorkerThis implements the minimum of msm in order to make shader-db work.
4*61046927SAndroid Build Coastguard WorkerThe submit ioctl is stubbed out to not execute anything.
5*61046927SAndroid Build Coastguard Worker
6*61046927SAndroid Build Coastguard WorkerExport `MESA_LOADER_DRIVER_OVERRIDE=msm
7*61046927SAndroid Build Coastguard WorkerLD_PRELOAD=$prefix/lib/libfreedreno_noop_drm_shim.so`.
8*61046927SAndroid Build Coastguard Worker
9*61046927SAndroid Build Coastguard WorkerBy default, a630 is exposed.  The chip can be selected an enviornment
10*61046927SAndroid Build Coastguard Workervariable like `FD_GPU_ID=307"
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