[PATCH drm-next v3 04/15] drm: manager to keep track of GPUs VA mappings

[Boris Brezillon]

On Tue,  4 Apr 2023 03:27:30 +0200
Danilo Krummrich <dakr at redhat.com> wrote:

> +struct drm_gpuva_manager {
> +	/**
> +	 * @name: the name of the DRM GPU VA space
> +	 */
> +	const char *name;
> +
> +	/**
> +	 * @mm_start: start of the VA space
> +	 */
> +	u64 mm_start;
> +
> +	/**
> +	 * @mm_range: length of the VA space
> +	 */
> +	u64 mm_range;
> +
> +	/**
> +	 * @mtree: the &maple_tree to track GPU VA mappings
> +	 */
> +	struct maple_tree mtree;
> +
> +	/**
> +	 * @kernel_alloc_node:
> +	 *
> +	 * &drm_gpuva representing the address space cutout reserved for
> +	 * the kernel
> +	 */
> +	struct drm_gpuva kernel_alloc_node;
> +
> +	/**
> +	 * @ops: &drm_gpuva_fn_ops providing the split/merge steps to drivers
> +	 */
> +	struct drm_gpuva_fn_ops *ops;

Any reason for not making that a const object (same goes for all the
functions being passed a drm_gpuva_fn_ops)?

> +};