57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
|
/* 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);
|
||
|
|
|
||
|
|
#endif
|