d395fb1999
This reverts commit708d19d9f3. This is part of a revert of the following commits: commit708d19d9f3("drm/amdgpu: move internal vram_mgr function into the C file") commit5e3f1e7729("drm/amdgpu: fix start calculation in amdgpu_vram_mgr_new") commitc9cad937c0("drm/amdgpu: add drm buddy support to amdgpu") [WHY] Few users reported garbaged graphics as soon as x starts, reverting until this can be resolved. Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220708093047.492662-1-Arunpravin.PaneerSelvam@amd.com
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/* SPDX-License-Identifier: MIT
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* Copyright 2021 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef __AMDGPU_VRAM_MGR_H__
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#define __AMDGPU_VRAM_MGR_H__
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#include <drm/drm_buddy.h>
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struct amdgpu_vram_mgr {
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struct ttm_resource_manager manager;
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struct drm_buddy mm;
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/* protects access to buffer objects */
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struct mutex lock;
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struct list_head reservations_pending;
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struct list_head reserved_pages;
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atomic64_t vis_usage;
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u64 default_page_size;
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};
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struct amdgpu_vram_mgr_resource {
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struct ttm_resource base;
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struct list_head blocks;
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unsigned long flags;
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};
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static inline u64 amdgpu_vram_mgr_block_start(struct drm_buddy_block *block)
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{
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return drm_buddy_block_offset(block);
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}
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static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
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{
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return PAGE_SIZE << drm_buddy_block_order(block);
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}
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static inline struct drm_buddy_block *
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amdgpu_vram_mgr_first_block(struct list_head *list)
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{
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return list_first_entry_or_null(list, struct drm_buddy_block, link);
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}
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static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
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{
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struct drm_buddy_block *block;
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u64 start, size;
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block = amdgpu_vram_mgr_first_block(head);
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if (!block)
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return false;
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while (head != block->link.next) {
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start = amdgpu_vram_mgr_block_start(block);
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size = amdgpu_vram_mgr_block_size(block);
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block = list_entry(block->link.next, struct drm_buddy_block, link);
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if (start + size != amdgpu_vram_mgr_block_start(block))
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return false;
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}
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return true;
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}
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static inline struct amdgpu_vram_mgr_resource *
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to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
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{
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return container_of(res, struct amdgpu_vram_mgr_resource, base);
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}
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#endif
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