eb9702ad29
The idea being out-syncs can signal indicating all previous operations on the bind queue are complete. An example use case of this would be support for implementing vkQueueWaitIdle easily. All in-syncs are waited on before signaling out-syncs. This is implemented by forming a composite software fence of in-syncs and installing this fence in the out-syncs and exec queue last fence slot. The last fence must be added as a dependency for jobs on user exec queues as it is possible for the last fence to be a composite software fence (unordered, ioctl with zero bb or binds) rather than hardware fence (ordered, previous job on queue). Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
37 lines
990 B
C
37 lines
990 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef _XE_SYNC_H_
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#define _XE_SYNC_H_
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#include "xe_sync_types.h"
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struct xe_device;
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struct xe_exec_queue;
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struct xe_file;
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struct xe_sched_job;
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struct xe_vm;
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#define SYNC_PARSE_FLAG_EXEC BIT(0)
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#define SYNC_PARSE_FLAG_LR_MODE BIT(1)
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#define SYNC_PARSE_FLAG_DISALLOW_USER_FENCE BIT(2)
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int xe_sync_entry_parse(struct xe_device *xe, struct xe_file *xef,
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struct xe_sync_entry *sync,
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struct drm_xe_sync __user *sync_user,
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unsigned int flags);
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int xe_sync_entry_wait(struct xe_sync_entry *sync);
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int xe_sync_entry_add_deps(struct xe_sync_entry *sync,
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struct xe_sched_job *job);
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void xe_sync_entry_signal(struct xe_sync_entry *sync,
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struct xe_sched_job *job,
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struct dma_fence *fence);
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void xe_sync_entry_cleanup(struct xe_sync_entry *sync);
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struct dma_fence *
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xe_sync_in_fence_get(struct xe_sync_entry *sync, int num_sync,
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struct xe_exec_queue *q, struct xe_vm *vm);
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#endif
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