/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2022 Intel Corporation
 */

#ifndef _XE_TTM_VRAM_MGR_TYPES_H_
#define _XE_TTM_VRAM_MGR_TYPES_H_

#include <drm/drm_buddy.h>
#include <drm/ttm/ttm_device.h>

/**
 * struct xe_ttm_vram_mgr - Xe TTM VRAM manager
 *
 * Manages placement of TTM resource in VRAM.
 */
struct xe_ttm_vram_mgr {
        /** @manager: Base TTM resource manager */
        struct ttm_resource_manager manager;
        /** @mm: DRM buddy allocator which manages the VRAM */
        struct drm_buddy mm;
        /** @visible_size: Proped size of the CPU visible portion */
        u64 visible_size;
        /** @visible_avail: CPU visible portion still unallocated */
        u64 visible_avail;
        /** @default_page_size: default page size */
        u64 default_page_size;
        /** @lock: protects allocations of VRAM */
        struct mutex lock;
        /** @mem_type: The TTM memory type */
        u32 mem_type;
};

/**
 * struct xe_ttm_vram_mgr_resource - Xe TTM VRAM resource
 */
struct xe_ttm_vram_mgr_resource {
        /** @base: Base TTM resource */
        struct ttm_resource base;
        /** @blocks: list of DRM buddy blocks */
        struct list_head blocks;
        /** @used_visible_size: How many CPU visible bytes this resource is using */
        u64 used_visible_size;
        /** @flags: flags associated with the resource */
        unsigned long flags;
};

#endif