67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/****************************************************************************
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* Copyright (C) 2003-2006 by XGI Technology, Taiwan.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation on the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* XGI AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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***************************************************************************/
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#ifndef _XGI_CMDLIST_H_
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#define _XGI_CMDLIST_H_
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struct xgi_cmdring_info {
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/**
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* Kernel space pointer to the base of the command ring.
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*/
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u32 * ptr;
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/**
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* Size, in bytes, of the command ring.
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*/
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unsigned int size;
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/**
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* Base address of the command ring from the hardware's PoV.
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*/
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unsigned int ring_hw_base;
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u32 * last_ptr;
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/**
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* Offset, in bytes, from the start of the ring to the next available
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* location to store a command.
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*/
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unsigned int ring_offset;
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};
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struct xgi_info;
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extern int xgi_cmdlist_initialize(struct xgi_info * info, size_t size,
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struct drm_file * filp);
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extern int xgi_state_change(struct xgi_info * info, unsigned int to,
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unsigned int from);
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extern void xgi_cmdlist_cleanup(struct xgi_info * info);
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extern void xgi_emit_irq(struct xgi_info * info);
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#endif /* _XGI_CMDLIST_H_ */
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