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/************************************************************************** | ||
* | ||
* Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA | ||
* All Rights Reserved. | ||
* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA | ||
* All Rights Reserved. | ||
* | ||
* This program is free software; you can redistribute it and/or modify it | ||
* under the terms and conditions of the GNU General Public License, | ||
* version 2, as published by the Free Software Foundation. | ||
* | ||
* This program is distributed in the hope it will be useful, but WITHOUT | ||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
* more details. | ||
* | ||
* You should have received a copy of the GNU General Public License along with | ||
* this program; if not, write to the Free Software Foundation, Inc., | ||
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | ||
* | ||
**************************************************************************/ | ||
/* | ||
* Authors | ||
* Thomas Hellström <thomas-at-tungstengraphics-dot-com> | ||
*/ | ||
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#ifndef TTM_FENCE_USER_H | ||
#define TTM_FENCE_USER_H | ||
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#if !defined(__KERNEL__) && !defined(_KERNEL) | ||
#include <stdint.h> | ||
#endif | ||
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#define TTM_FENCE_MAJOR 0 | ||
#define TTM_FENCE_MINOR 1 | ||
#define TTM_FENCE_PL 0 | ||
#define TTM_FENCE_DATE "080819" | ||
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/** | ||
* struct ttm_fence_signaled_req | ||
* | ||
* @handle: Handle to the fence object. Input. | ||
* | ||
* @fence_type: Fence types we want to flush. Input. | ||
* | ||
* @flush: Boolean. Flush the indicated fence_types. Input. | ||
* | ||
* Argument to the TTM_FENCE_SIGNALED ioctl. | ||
*/ | ||
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struct ttm_fence_signaled_req { | ||
uint32_t handle; | ||
uint32_t fence_type; | ||
int32_t flush; | ||
uint32_t pad64; | ||
}; | ||
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/** | ||
* struct ttm_fence_rep | ||
* | ||
* @signaled_types: Fence type that has signaled. | ||
* | ||
* @fence_error: Command execution error. | ||
* Hardware errors that are consequences of the execution | ||
* of the command stream preceding the fence are reported | ||
* here. | ||
* | ||
* Output argument to the TTM_FENCE_SIGNALED and | ||
* TTM_FENCE_FINISH ioctls. | ||
*/ | ||
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struct ttm_fence_rep { | ||
uint32_t signaled_types; | ||
uint32_t fence_error; | ||
}; | ||
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union ttm_fence_signaled_arg { | ||
struct ttm_fence_signaled_req req; | ||
struct ttm_fence_rep rep; | ||
}; | ||
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/* | ||
* Waiting mode flags for the TTM_FENCE_FINISH ioctl. | ||
* | ||
* TTM_FENCE_FINISH_MODE_LAZY: Allow for sleeps during polling | ||
* wait. | ||
* | ||
* TTM_FENCE_FINISH_MODE_NO_BLOCK: Don't block waiting for GPU, | ||
* but return -EBUSY if the buffer is busy. | ||
*/ | ||
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#define TTM_FENCE_FINISH_MODE_LAZY (1 << 0) | ||
#define TTM_FENCE_FINISH_MODE_NO_BLOCK (1 << 1) | ||
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/** | ||
* struct ttm_fence_finish_req | ||
* | ||
* @handle: Handle to the fence object. Input. | ||
* | ||
* @fence_type: Fence types we want to finish. | ||
* | ||
* @mode: Wait mode. | ||
* | ||
* Input to the TTM_FENCE_FINISH ioctl. | ||
*/ | ||
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struct ttm_fence_finish_req { | ||
uint32_t handle; | ||
uint32_t fence_type; | ||
uint32_t mode; | ||
uint32_t pad64; | ||
}; | ||
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union ttm_fence_finish_arg { | ||
struct ttm_fence_finish_req req; | ||
struct ttm_fence_rep rep; | ||
}; | ||
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/** | ||
* struct ttm_fence_unref_arg | ||
* | ||
* @handle: Handle to the fence object. | ||
* | ||
* Argument to the TTM_FENCE_UNREF ioctl. | ||
*/ | ||
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struct ttm_fence_unref_arg { | ||
uint32_t handle; | ||
uint32_t pad64; | ||
}; | ||
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/* | ||
* Ioctl offsets frome extenstion start. | ||
*/ | ||
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#define TTM_FENCE_SIGNALED 0x01 | ||
#define TTM_FENCE_FINISH 0x02 | ||
#define TTM_FENCE_UNREF 0x03 | ||
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#endif |
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