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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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977f7e1068
Currently we pre-allocate entities and fences for all the HW IPs on context creation and some of which are might never be used. This patch tries to resolve entity/fences wastage by creating entity only when needed. v2: allocate memory for entity and fences together Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/*
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* Copyright 2018 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_CTX_H__
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#define __AMDGPU_CTX_H__
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#include "amdgpu_ring.h"
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struct drm_device;
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struct drm_file;
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struct amdgpu_fpriv;
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#define AMDGPU_MAX_ENTITY_NUM 4
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struct amdgpu_ctx_entity {
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uint64_t sequence;
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struct drm_sched_entity entity;
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struct dma_fence *fences[];
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};
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struct amdgpu_ctx {
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struct kref refcount;
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struct amdgpu_device *adev;
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unsigned reset_counter;
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unsigned reset_counter_query;
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uint32_t vram_lost_counter;
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spinlock_t ring_lock;
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struct amdgpu_ctx_entity *entities[AMDGPU_HW_IP_NUM][AMDGPU_MAX_ENTITY_NUM];
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bool preamble_presented;
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enum drm_sched_priority init_priority;
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enum drm_sched_priority override_priority;
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struct mutex lock;
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atomic_t guilty;
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unsigned long ras_counter_ce;
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unsigned long ras_counter_ue;
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};
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struct amdgpu_ctx_mgr {
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struct amdgpu_device *adev;
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struct mutex lock;
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/* protected by lock */
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struct idr ctx_handles;
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};
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extern const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM];
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struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
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int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
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int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance,
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u32 ring, struct drm_sched_entity **entity);
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void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
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struct drm_sched_entity *entity,
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struct dma_fence *fence, uint64_t *seq);
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struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
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struct drm_sched_entity *entity,
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uint64_t seq);
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void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx,
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enum drm_sched_priority priority);
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int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp);
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int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx,
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struct drm_sched_entity *entity);
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void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
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void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr);
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long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout);
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void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
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void amdgpu_ctx_init_sched(struct amdgpu_device *adev);
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#endif
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