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+/*
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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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+
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+#include "amdgpu_ring.h"
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+
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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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+
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+struct amdgpu_ctx_ring {
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+ uint64_t sequence;
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+ struct dma_fence **fences;
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+ struct drm_sched_entity entity;
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+};
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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 dma_fence **fences;
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+ struct amdgpu_ctx_ring rings[AMDGPU_MAX_RINGS];
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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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+};
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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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+
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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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+
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+int amdgpu_ctx_get_ring(struct amdgpu_ctx *ctx,
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+ u32 hw_ip, u32 instance, u32 ring,
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+ struct amdgpu_ring **out_ring);
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+int amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring,
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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 amdgpu_ring *ring, 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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+
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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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+
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+int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx, unsigned ring_id);
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+
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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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+void amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr);
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+void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr);
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+
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+#endif
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