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/* 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_mem_region;
/**
* 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;
/** @vram: ptr to details of associated VRAM region */
struct xe_mem_region *vram;
/** @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
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