/* SPDX-License-Identifier: MIT */
/*
* Copyright 2023 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_EV_FENCE_H_
#define AMDGPU_EV_FENCE_H_
struct amdgpu_eviction_fence {
struct dma_fence base;
spinlock_t lock;
char timeline_name[TASK_COMM_LEN];
struct amdgpu_eviction_fence_mgr *evf_mgr;
};
struct amdgpu_eviction_fence_mgr {
u64 ev_fence_ctx;
atomic_t ev_fence_seq;
spinlock_t ev_fence_lock;
struct amdgpu_eviction_fence *ev_fence;
struct delayed_work suspend_work;
uint8_t fd_closing;
};
/* Eviction fence helper functions */
struct amdgpu_eviction_fence *
amdgpu_eviction_fence_create(struct amdgpu_eviction_fence_mgr *evf_mgr);
void
amdgpu_eviction_fence_destroy(struct amdgpu_eviction_fence_mgr *evf_mgr);
int
amdgpu_eviction_fence_attach(struct amdgpu_eviction_fence_mgr *evf_mgr,
struct amdgpu_bo *bo);
void
amdgpu_eviction_fence_detach(struct amdgpu_eviction_fence_mgr *evf_mgr,
struct amdgpu_bo *bo);
int
amdgpu_eviction_fence_init(struct amdgpu_eviction_fence_mgr *evf_mgr);
void
amdgpu_eviction_fence_signal(struct amdgpu_eviction_fence_mgr *evf_mgr,
struct amdgpu_eviction_fence *ev_fence);
int
amdgpu_eviction_fence_replace_fence(struct amdgpu_eviction_fence_mgr *evf_mgr,
struct drm_exec *exec);
#endif
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