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//===-- OffloadPolicy.h - Configuration of offload behavior -----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Configuration for offload behavior, e.g., if offload is disabled, can be
// disabled, is mandatory, etc.
//
//===----------------------------------------------------------------------===//
#ifndef OMPTARGET_OFFLOAD_POLICY_H
#define OMPTARGET_OFFLOAD_POLICY_H
#include "PluginManager.h"
enum kmp_target_offload_kind_t {
tgt_disabled = 0,
tgt_default = 1,
tgt_mandatory = 2
};
extern "C" int __kmpc_get_target_offload(void) __attribute__((weak));
class OffloadPolicy {
OffloadPolicy(PluginManager &PM) {
// TODO: Check for OpenMP.
switch ((kmp_target_offload_kind_t)__kmpc_get_target_offload()) {
case tgt_disabled:
Kind = DISABLED;
return;
case tgt_mandatory:
Kind = MANDATORY;
return;
default:
if (PM.getNumDevices()) {
DP("Default TARGET OFFLOAD policy is now mandatory "
"(devices were found)\n");
Kind = MANDATORY;
} else {
DP("Default TARGET OFFLOAD policy is now disabled "
"(no devices were found)\n");
Kind = DISABLED;
}
return;
}
}
public:
static bool isOffloadDisabled() {
return static_cast<kmp_target_offload_kind_t>(
__kmpc_get_target_offload()) == tgt_disabled;
}
static const OffloadPolicy &get(PluginManager &PM) {
static OffloadPolicy OP(PM);
return OP;
}
enum OffloadPolicyKind { DISABLED, MANDATORY };
OffloadPolicyKind Kind = MANDATORY;
};
#endif // OMPTARGET_OFFLOAD_POLICY_H
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