/* SPDX-License-Identifier: MIT
* Copyright 2021 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
*/
#ifndef __AMDGPU_VRAM_MGR_H__
#define __AMDGPU_VRAM_MGR_H__
#include <drm/drm_buddy.h>
struct amdgpu_vram_mgr {
struct ttm_resource_manager manager;
struct drm_buddy mm;
/* protects access to buffer objects */
struct mutex lock;
struct list_head reservations_pending;
struct list_head reserved_pages;
atomic64_t vis_usage;
u64 default_page_size;
};
struct amdgpu_vram_mgr_resource {
struct ttm_resource base;
struct list_head blocks;
unsigned long flags;
};
static inline u64 amdgpu_vram_mgr_block_start(struct drm_buddy_block *block)
{
return drm_buddy_block_offset(block);
}
static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
{
return (u64)PAGE_SIZE << drm_buddy_block_order(block);
}
static inline bool amdgpu_vram_mgr_is_cleared(struct drm_buddy_block *block)
{
return drm_buddy_block_is_clear(block);
}
static inline struct amdgpu_vram_mgr_resource *
to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
{
return container_of(res, struct amdgpu_vram_mgr_resource, base);
}
static inline void amdgpu_vram_mgr_set_cleared(struct ttm_resource *res)
{
struct amdgpu_vram_mgr_resource *ares = to_amdgpu_vram_mgr_resource(res);
WARN_ON(ares->flags & DRM_BUDDY_CLEARED);
ares->flags |= DRM_BUDDY_CLEARED;
}
#endif
Messung V0.5 in Prozent C=98 H=100 G=98
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-03)
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