| Message ID | 20241231-gpu-acd-v3-3-3ba73660e9ca@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Support for GPU ACD feature on Adreno X1-85 | expand |
On 30.12.2024 10:11 PM, Akhil P Oommen wrote: > Add a module param to disable ACD which will help to quickly rule it > out for any GPU issues. > > Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> > --- Is that something useful during internal development, or do we see ACD causing issues in the wild? If the latter, would that be caused by e.g. outdated firmware? Konrad
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index 1f213a0fc61b..ce08eed572c8 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -1475,6 +1475,13 @@ static int a6xx_gmu_acd_probe(struct a6xx_gmu *gmu) struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; struct msm_gpu *gpu = &adreno_gpu->base; int ret, i, cmd_idx = 0; + extern bool disable_acd; + + /* Skip ACD probe if requested via module param */ + if (disable_acd) { + DRM_DEV_ERROR(gmu->dev, "Skipping GPU ACD probe\n"); + return 0; + } cmd->version = 1; cmd->stride = 1; diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 236b25c094cd..f4552b8c6767 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -24,6 +24,10 @@ int enable_preemption = -1; MODULE_PARM_DESC(enable_preemption, "Enable preemption (A7xx only) (1=on , 0=disable, -1=auto (default))"); module_param(enable_preemption, int, 0600); +bool disable_acd; +MODULE_PARM_DESC(disable_acd, "Forcefully disable GPU ACD"); +module_param_unsafe(disable_acd, bool, 0600); + extern const struct adreno_gpulist a2xx_gpulist; extern const struct adreno_gpulist a3xx_gpulist; extern const struct adreno_gpulist a4xx_gpulist;
Add a module param to disable ACD which will help to quickly rule it out for any GPU issues. Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> --- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 7 +++++++ drivers/gpu/drm/msm/adreno/adreno_device.c | 4 ++++ 2 files changed, 11 insertions(+)