genode/os/include/gpu/driver.h
2013-01-10 21:44:47 +01:00

68 lines
1.5 KiB
C++

/*
* \brief GPU driver interface
* \author Norman Feske
* \date 2010-07-28
*
* This interface is implemented by the GPU driver and used by the back-end
* of 'libdrm'. With the forthcoming work on the GPU infrastructure, it will
* change. It is an intermediate step - please do not use it.
*/
/*
* Copyright (C) 2010-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _GPU__DRIVER_H_
#define _GPU__DRIVER_H_
#include <base/stdint.h>
class Gpu_driver
{
public:
class Client;
/**
* Create client context
*/
virtual Client *create_client() = 0;
/**
* Return PCI device ID of GPU
*/
virtual uint16_t device_id() = 0;
/**
* Perform operation of GPU device
*
* \param request ioctl opcode relative to 'DRM_COMMAND_BASE'
*/
virtual int ioctl(Client *client, int request, void *arg) = 0;
/**
* Map buffer object to local address space
*
* \param handle client-local buffer-object handle
* \return base address of mapped buffer object
*/
virtual void *map_buffer_object(Client *client, long handle) = 0;
/**
* Remove buffer object from local address space
*
* \param handle client-local buffer-object handle
*/
virtual void unmap_buffer_object(Client *client, long handle) = 0;
};
/**
* Obtain GPU driver interface
*/
Gpu_driver *gpu_driver();
#endif /* _GPU__DRIVER_H_ */