mirror of
https://github.com/matrix-construct/construct
synced 2024-11-29 18:22:50 +01:00
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
// The Construct
|
|
//
|
|
// Copyright (C) The Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2022 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_CL_EXEC_H
|
|
|
|
/// Construction enqueues the task; destruction waits for completion.
|
|
///
|
|
/// clEnqueue* construction with resulting cl_event wrapping. Instances
|
|
/// represent the full lifecycle of work creation, submission and completion.
|
|
///
|
|
/// Our interface is tied directly to ircd::ctx for intuitive control flow and
|
|
/// interaction with the device. By default, all constructions are dependent
|
|
/// on the last construction made on the same ircd::ctx, providing sequential
|
|
/// consistency for each ircd::ctx, and independence between different ctxs.
|
|
/// Each instance destructs only when complete, otherwise the ircd::ctx will
|
|
/// block in the destructor.
|
|
struct ircd::cl::exec
|
|
:work
|
|
{
|
|
struct opts;
|
|
|
|
static const opts opts_default;
|
|
|
|
// Copy data written by the device to the GTT into our buffer.
|
|
exec(data &, const std::memory_order, const opts & = opts_default);
|
|
|
|
// Copy data directly between buffers.
|
|
exec(data &, const data &, const opts & = opts_default);
|
|
|
|
// Execute a kernel on a range.
|
|
exec(kern &, const kern::range &, const opts & = opts_default);
|
|
|
|
// Execute a kernel on a range.
|
|
exec(kern &, const opts &, const kern::range &);
|
|
|
|
// Execute a barrier.
|
|
exec(const opts &);
|
|
|
|
// No-op
|
|
exec() = default;
|
|
};
|
|
|
|
/// Options for an exec.
|
|
struct ircd::cl::exec::opts
|
|
{
|
|
/// Specify a list of dependencies. When provided, this list overrides the
|
|
/// default sequential behavior; thus can be used to start new dependency
|
|
/// chains for some task concurrency on the same ircd::ctx. Providing a
|
|
/// single reference to the last exec on the same stack is equivalent to
|
|
/// the default.
|
|
vector_view<cl::exec> deps;
|
|
|
|
/// For operations which have a size; otherwise ignored, or serves as
|
|
/// sentinel for automatic size.
|
|
size_t size {-1UL};
|
|
|
|
/// For operations which have an offset (or two); otherwise ignored.
|
|
off_t offset[2] {0};
|
|
|
|
/// Tune the intensity of the execution. For headless deployments the
|
|
/// maximum intensity is advised. Lesser values are more intense. The
|
|
/// default of -1 is the maximum. The value of zero yields the ircd::ctx
|
|
/// after submission, but does not otherwise decrease the intensity.
|
|
int nice {-1};
|
|
|
|
/// Starts a new dependency chain; allowing empty deps without implicit
|
|
/// dependency on the last work item constructed on the ircd::ctx.
|
|
bool indep {false};
|
|
|
|
/// For operations that have an optional blocking behavior; otherwise
|
|
/// ignored. Note that this is a thread-level blocking mechanism and
|
|
/// does not yield the ircd::ctx; for testing/special use only.
|
|
bool blocking {false};
|
|
|
|
/// Perform a flush of the queue directly after submit.
|
|
bool flush {false};
|
|
|
|
/// Perform a sync of the queue directly after submit; this will block in
|
|
/// the ctor; all work will be complete at full construction.
|
|
bool sync {false};
|
|
};
|
|
|
|
inline
|
|
ircd::cl::exec::exec(kern &kern,
|
|
const opts &opts,
|
|
const kern::range &range)
|
|
:exec
|
|
{
|
|
kern, range, opts
|
|
}
|
|
{}
|