[PATCH 13/17] drm/msm/adreno: Support AQE engine

[Dmitry Baryshkov]

On Tue, Sep 30, 2025 at 11:18:18AM +0530, Akhil P Oommen wrote:
> AQE (Applicaton Qrisc Engine) is a dedicated core inside CP which aides
> in Raytracing related workloads. Add support for loading the AQE firmware
> and initialize the necessary registers.
> 
> Signed-off-by: Akhil P Oommen <akhilpo at oss.qualcomm.com>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 24 ++++++++++++++++++++++++
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.h   |  2 ++
>  drivers/gpu/drm/msm/adreno/a8xx_gpu.c   |  3 +++
>  drivers/gpu/drm/msm/adreno/adreno_gpu.h |  1 +
>  4 files changed, 30 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index 4aeeaceb1fb30a9d68ac636c14249e3853ef73ac..07ac5be9d0bccf4d2345eb76b08851a94187e861 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -1093,6 +1093,30 @@ static int a6xx_ucode_load(struct msm_gpu *gpu)
>  		}
>  	}
>  
> +	if (!a6xx_gpu->aqe_bo && adreno_gpu->fw[ADRENO_FW_AQE]) {
> +		a6xx_gpu->aqe_bo = adreno_fw_create_bo(gpu,
> +			adreno_gpu->fw[ADRENO_FW_AQE], &a6xx_gpu->aqe_iova);
> +
> +		if (IS_ERR(a6xx_gpu->aqe_bo)) {
> +			int ret = PTR_ERR(a6xx_gpu->aqe_bo);
> +
> +			a6xx_gpu->aqe_bo = NULL;
> +			DRM_DEV_ERROR(&gpu->pdev->dev,
> +				"Could not allocate AQE ucode: %d\n", ret);
> +
> +			return ret;
> +		}
> +
> +		msm_gem_object_set_name(a6xx_gpu->aqe_bo, "aqefw");
> +		if (!a6xx_ucode_check_version(a6xx_gpu, a6xx_gpu->aqe_bo)) {

Should this firmware be handled by a separate function?

> +			msm_gem_unpin_iova(a6xx_gpu->aqe_bo, gpu->vm);
> +			drm_gem_object_put(a6xx_gpu->aqe_bo);
> +
> +			a6xx_gpu->aqe_bo = NULL;
> +			return -EPERM;
> +		}
> +	}
> +
>  	/*
>  	 * Expanded APRIV and targets that support WHERE_AM_I both need a
>  	 * privileged buffer to store the RPTR shadow

-- 
With best wishes
Dmitry