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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.txt for details.
//
//===----------------------------------------------------------------------===//
#include "offload_orsl.h"
#include <stdlib.h>
#include "offload_host.h"
#include "orsl-lite/include/orsl-lite.h"
namespace ORSL {
static bool is_enabled = false;
static const ORSLTag my_tag = "Offload";
void init()
{
const char *env_var = getenv("OFFLOAD_ENABLE_ORSL");
if (env_var != 0 && *env_var != '\0') {
int64_t new_val;
if (__offload_parse_int_string(env_var, new_val)) {
is_enabled = new_val;
}
else {
LIBOFFLOAD_ERROR(c_invalid_env_var_int_value,
"OFFLOAD_ENABLE_ORSL");
}
}
if (is_enabled) {
OFFLOAD_DEBUG_TRACE(2, "ORSL is enabled\n");
}
else {
OFFLOAD_DEBUG_TRACE(2, "ORSL is disabled\n");
}
}
bool reserve(int device)
{
if (is_enabled) {
int pnum = mic_engines[device].get_physical_index();
ORSLBusySet bset;
bset.type = BUSY_SET_FULL;
if (ORSLReserve(1, &pnum, &bset, my_tag) != 0) {
return false;
}
}
return true;
}
bool try_reserve(int device)
{
if (is_enabled) {
int pnum = mic_engines[device].get_physical_index();
ORSLBusySet bset;
bset.type = BUSY_SET_FULL;
if (ORSLTryReserve(1, &pnum, &bset, my_tag) != 0) {
return false;
}
}
return true;
}
void release(int device)
{
if (is_enabled) {
int pnum = mic_engines[device].get_physical_index();
ORSLBusySet bset;
bset.type = BUSY_SET_FULL;
if (ORSLRelease(1, &pnum, &bset, my_tag) != 0) {
// should never get here
}
}
}
} // namespace ORSL
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