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/*
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* runtime support for OpenACC */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "liboacc-internal.h"
#ifdef __cplusplus
extern "C" {
#endif
/* per device init */
void
OACC_dev_init(OACC_device_ptr pdev)
{
cl_int err;
cl_command_queue_properties queue_props = 0;
LOCK_AQUIRE(pdev->dev_lock);
if(pdev->ctx != NULL && pdev->queue != NULL)
{
LOCK_RELEASE(pdev->dev_lock);
return;
}
if(pdev->ctx == NULL)
{
pdev->ctx = clCreateContext(NULL, 1, &pdev->id, NULL, NULL, &err);
if(err < 0)
{
OACC_fatal("can't create context: %d\n", err);
}
}
if(pdev->queue == NULL)
{
if((pdev->flags & OACC_DF_OUT_OF_ORDER) != 0)
{
queue_props |= CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE;
}
if(OACC_profiling != 0 && (pdev->flags & OACC_DEF_PROFILING) != 0)
{
queue_props |= CL_QUEUE_PROFILING_ENABLE;
}
pdev->queue = clCreateCommandQueue(pdev->ctx, pdev->id, queue_props, &err);
if(err < 0)
{
OACC_fatal("Can't create command queue: %d\n", err);
}
}
LOCK_RELEASE(pdev->dev_lock);
}
/* per device cleanup */
void
OACC_dev_fini(OACC_device_ptr pdev)
{
struct OACC_program_data *prog, *pprog;
struct OACC_kernel_data *kern, *pkern;
OACC_buffer_ptr buf, pbuf;
LOCK_AQUIRE(pdev->dev_lock);
pprog = pdev->prog_head;
while(pprog != NULL)
{
prog = pprog;
pprog = prog->next;
free(prog->name);
pkern = prog->kern_head;
while(pkern != NULL)
{
kern = pkern;
pkern = kern->next;
free(kern->name);
free(kern->args);
clReleaseKernel(kern->kern);
free(kern);
}
clReleaseProgram(prog->prog);
free(prog);
}
pbuf = pdev->mem;
while(pbuf != NULL)
{
buf = pbuf;
pbuf = pbuf->next;
if(buf->data_ptr != NULL)
{
clEnqueueUnmapMemObject(pdev->queue, buf->mem_obj, buf->data_ptr,
0, NULL, NULL);
}
clReleaseMemObject(buf->mem_obj);
free(buf);
}
if(pdev->queue != NULL)
{
clReleaseCommandQueue(pdev->queue);
pdev->queue = NULL;
}
if(pdev->ctx != NULL)
{
clReleaseContext(pdev->ctx);
pdev->ctx = NULL;
}
LOCK_RELEASE(pdev->dev_lock);
}
/* enqueue kernel object */
void
OACC_enqueue_kernel(struct OACC_kernel_data* kern, unsigned worksize,
unsigned offset, int groupsize,
struct OACC_queue_data* queue, unsigned idx)
{
cl_int err;
cl_uint nev;
cl_event *ev_wait = NULL, *ev_set = NULL;
unsigned *ploc_size = NULL;
if(groupsize > 0)
ploc_size = (unsigned *)&groupsize;
OACC_EQ_EVENTS(queue, nev, ev_wait, ev_set, idx)
err = clEnqueueNDRangeKernel(OACC_curr_dev[OACC_curr_num]->queue, kern->kern,
1, &offset, &worksize, ploc_size, nev, ev_wait, ev_set);
if(err < 0)
{
OACC_fatal("Can't enqueue kernel: %d\n", err);
}
}
/* fatal error reporter */
void
OACC_fatal(const char* msg, ...)
{
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
abort();
}
void
OACC_warning(const char* msg, ...)
{
va_list args;
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
}
#ifdef __cplusplus
}
#endif
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