blob: 0722d33f3e14699eefea013b3dd87b3d7ece72be [file] [log] [blame]
/* SPDX-License-Identifier: MIT */
* Copyright © 2021 Intel Corporation
#ifndef __I915_TTM_BUDDY_MANAGER_H__
#define __I915_TTM_BUDDY_MANAGER_H__
#include <linux/list.h>
#include <linux/types.h>
#include <drm/ttm/ttm_resource.h>
struct ttm_device;
struct ttm_resource_manager;
struct i915_buddy_mm;
* struct i915_ttm_buddy_resource
* @base: struct ttm_resource base class we extend
* @blocks: the list of struct i915_buddy_block for this resource/allocation
* @mm: the struct i915_buddy_mm for this resource
* Extends the struct ttm_resource to manage an address space allocation with
* one or more struct i915_buddy_block.
struct i915_ttm_buddy_resource {
struct ttm_resource base;
struct list_head blocks;
struct i915_buddy_mm *mm;
* to_ttm_buddy_resource
* @res: the resource to upcast
* Upcast the struct ttm_resource object into a struct i915_ttm_buddy_resource.
static inline struct i915_ttm_buddy_resource *
to_ttm_buddy_resource(struct ttm_resource *res)
return container_of(res, struct i915_ttm_buddy_resource, base);
int i915_ttm_buddy_man_init(struct ttm_device *bdev,
unsigned type, bool use_tt,
u64 size, u64 default_page_size, u64 chunk_size);
int i915_ttm_buddy_man_fini(struct ttm_device *bdev,
unsigned int type);
int i915_ttm_buddy_man_reserve(struct ttm_resource_manager *man,
u64 start, u64 size);