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147 lines
3.7 KiB
C
147 lines
3.7 KiB
C
/**************************************************************************
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*
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* Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
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* All Rights Reserved.
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* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
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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 a
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* 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 the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* 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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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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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 portions
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* of the Software.
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*
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**************************************************************************/
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/*
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* Authors
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* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
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*/
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#ifndef TTM_FENCE_USER_H
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#define TTM_FENCE_USER_H
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#if !defined(__KERNEL__) && !defined(_KERNEL)
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#include <stdint.h>
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#endif
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#define TTM_FENCE_MAJOR 0
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#define TTM_FENCE_MINOR 1
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#define TTM_FENCE_PL 0
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#define TTM_FENCE_DATE "080819"
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/**
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* struct ttm_fence_signaled_req
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*
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* @handle: Handle to the fence object. Input.
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*
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* @fence_type: Fence types we want to flush. Input.
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*
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* @flush: Boolean. Flush the indicated fence_types. Input.
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*
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* Argument to the TTM_FENCE_SIGNALED ioctl.
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*/
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struct ttm_fence_signaled_req {
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uint32_t handle;
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uint32_t fence_type;
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int32_t flush;
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uint32_t pad64;
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};
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/**
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* struct ttm_fence_rep
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*
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* @signaled_types: Fence type that has signaled.
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*
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* @fence_error: Command execution error.
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* Hardware errors that are consequences of the execution
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* of the command stream preceding the fence are reported
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* here.
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*
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* Output argument to the TTM_FENCE_SIGNALED and
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* TTM_FENCE_FINISH ioctls.
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*/
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struct ttm_fence_rep {
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uint32_t signaled_types;
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uint32_t fence_error;
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};
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union ttm_fence_signaled_arg {
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struct ttm_fence_signaled_req req;
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struct ttm_fence_rep rep;
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};
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/*
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* Waiting mode flags for the TTM_FENCE_FINISH ioctl.
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*
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* TTM_FENCE_FINISH_MODE_LAZY: Allow for sleeps during polling
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* wait.
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*
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* TTM_FENCE_FINISH_MODE_NO_BLOCK: Don't block waiting for GPU,
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* but return -EBUSY if the buffer is busy.
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*/
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#define TTM_FENCE_FINISH_MODE_LAZY (1 << 0)
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#define TTM_FENCE_FINISH_MODE_NO_BLOCK (1 << 1)
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/**
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* struct ttm_fence_finish_req
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*
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* @handle: Handle to the fence object. Input.
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*
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* @fence_type: Fence types we want to finish.
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*
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* @mode: Wait mode.
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*
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* Input to the TTM_FENCE_FINISH ioctl.
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*/
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struct ttm_fence_finish_req {
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uint32_t handle;
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uint32_t fence_type;
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uint32_t mode;
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uint32_t pad64;
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};
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union ttm_fence_finish_arg {
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struct ttm_fence_finish_req req;
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struct ttm_fence_rep rep;
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};
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/**
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* struct ttm_fence_unref_arg
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*
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* @handle: Handle to the fence object.
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*
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* Argument to the TTM_FENCE_UNREF ioctl.
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*/
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struct ttm_fence_unref_arg {
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uint32_t handle;
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uint32_t pad64;
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};
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/*
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* Ioctl offsets frome extenstion start.
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*/
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#define TTM_FENCE_SIGNALED 0x01
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#define TTM_FENCE_FINISH 0x02
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#define TTM_FENCE_UNREF 0x03
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#endif
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