[PATCH 9/9] drm/msm: Add a way for userspace to allocate GPU iova

[Dmitry Osipenko]

On 3/30/22 02:00, Rob Clark wrote:
> +static int msm_ioctl_gem_info_set_iova(struct drm_device *dev,
> +		struct drm_file *file, struct drm_gem_object *obj,
> +		uint64_t iova)
> +{
> +	struct msm_drm_private *priv = dev->dev_private;
> +	struct msm_file_private *ctx = file->driver_priv;
> +
> +	if (!priv->gpu)
> +		return -EINVAL;
> +
> +	/* Only supported if per-process address space is supported: */
> +	if (priv->gpu->aspace == ctx->aspace)
> +		return -EINVAL;

nit: -EOPNOTSUPP ?