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