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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Benjamin Segovia <benjamin.segovia@intel.com>
*/
#ifndef __CL_CONTEXT_H__
#define __CL_CONTEXT_H__
#include "cl_internals.h"
#include "cl_driver.h"
#include "CL/cl.h"
#include "cl_khr_icd.h"
#include <stdint.h>
#include <pthread.h>
/* DRI device created at create context */
struct intel_driver;
enum _cl_gl_context_type {
CL_GL_NOSHARE,
CL_GL_EGL_DISPLAY,
CL_GL_GLX_DISPLAY,
CL_GL_WGL_HDC,
CL_GL_CGL_SHAREGROUP
};
struct _cl_context_prop {
cl_context_properties platform_id;
enum _cl_gl_context_type gl_type;
cl_context_properties gl_context;
union {
cl_context_properties egl_display;
cl_context_properties glx_display;
cl_context_properties wgl_hdc;
cl_context_properties cgl_sharegroup;
};
};
/* Encapsulate the whole device */
struct _cl_context {
DEFINE_ICD(dispatch)
uint64_t magic; /* To identify it as a context */
volatile int ref_n; /* We reference count this object */
cl_driver drv; /* Handles HW or simulator */
cl_device_id device; /* All information about the GPU device */
cl_command_queue queues; /* All command queues currently allocated */
cl_program programs; /* All programs currently allocated */
cl_mem buffers; /* All memory object currently allocated */
cl_sampler samplers; /* All sampler object currently allocated */
pthread_mutex_t queue_lock; /* To allocate and deallocate queues */
pthread_mutex_t program_lock; /* To allocate and deallocate programs */
pthread_mutex_t buffer_lock; /* To allocate and deallocate buffers */
pthread_mutex_t sampler_lock; /* To allocate and deallocate samplers */
uint32_t ver; /* Gen version */
struct _cl_context_prop props;
cl_context_properties * prop_user; /* a copy of user passed context properties when create context */
cl_uint prop_len; /* count of the properties */
};
/* Implement OpenCL function */
extern cl_context cl_create_context(const cl_context_properties*,
cl_uint,
const cl_device_id*,
void (CL_CALLBACK * pfn_notify) (const char*, const void*, size_t, void*),
void *,
cl_int*);
/* Allocate and initialize a context */
extern cl_context cl_context_new(struct _cl_context_prop *);
/* Destroy and deallocate a context */
extern void cl_context_delete(cl_context);
/* Increment the context reference counter */
extern void cl_context_add_ref(cl_context);
/* Create the command queue from the given context and device */
extern cl_command_queue cl_context_create_queue(cl_context,
cl_device_id,
cl_command_queue_properties,
cl_int*);
/* Enqueue a ND Range kernel */
extern cl_int cl_context_ND_kernel(cl_context,
cl_command_queue,
cl_kernel,
cl_uint,
const size_t*,
const size_t*,
const size_t*);
/* Used for allocation */
extern cl_buffer_mgr cl_context_get_bufmgr(cl_context ctx);
#endif /* __CL_CONTEXT_H__ */
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