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/*
* Copyright 2018 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_CTX_H__
#define __AMDGPU_CTX_H__
#include "amdgpu_ring.h"
struct drm_device;
struct drm_file;
struct amdgpu_fpriv;
#define AMDGPU_MAX_ENTITY_NUM 4
#define AMDGPU_CTX_FENCE_USAGE_MIN_RATIO(max, total) ((max) > 16384ULL*(total))
struct amdgpu_ctx_entity {
uint64_t sequence;
struct drm_sched_entity entity;
struct dma_fence *fences[];
};
struct amdgpu_ctx {
struct kref refcount;
struct amdgpu_device *adev;
unsigned reset_counter;
unsigned reset_counter_query;
uint32_t vram_lost_counter;
spinlock_t ring_lock;
struct amdgpu_ctx_entity *entities[AMDGPU_HW_IP_NUM][AMDGPU_MAX_ENTITY_NUM];
bool preamble_presented;
int32_t init_priority;
int32_t override_priority;
struct mutex lock;
atomic_t guilty;
unsigned long ras_counter_ce;
unsigned long ras_counter_ue;
uint32_t stable_pstate;
};
struct amdgpu_ctx_mgr {
struct amdgpu_device *adev;
struct mutex lock;
/* protected by lock */
struct idr ctx_handles;
};
extern const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM];
struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance,
u32 ring, struct drm_sched_entity **entity);
void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx,
struct drm_sched_entity *entity,
struct dma_fence *fence, uint64_t *seq);
struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
struct drm_sched_entity *entity,
uint64_t seq);
bool amdgpu_ctx_priority_is_valid(int32_t ctx_prio);
void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx, int32_t ctx_prio);
int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp);
int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx,
struct drm_sched_entity *entity);
void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr);
void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr);
long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout);
void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
ktime_t amdgpu_ctx_mgr_fence_usage(struct amdgpu_ctx_mgr *mgr, uint32_t hwip,
uint32_t idx, uint64_t *elapsed);
#endif
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