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| 1 | +/************************************************************************** |
| 2 | + * |
| 3 | + * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA |
| 4 | + * All Rights Reserved. |
| 5 | + * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA |
| 6 | + * All Rights Reserved. |
| 7 | + * |
| 8 | + * This program is free software; you can redistribute it and/or modify it |
| 9 | + * under the terms and conditions of the GNU General Public License, |
| 10 | + * version 2, as published by the Free Software Foundation. |
| 11 | + * |
| 12 | + * This program is distributed in the hope it will be useful, but WITHOUT |
| 13 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | + * more details. |
| 16 | + * |
| 17 | + * You should have received a copy of the GNU General Public License along with |
| 18 | + * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | + * |
| 21 | + **************************************************************************/ |
| 22 | +/* |
| 23 | + * Authors |
| 24 | + * Thomas Hellström <thomas-at-tungstengraphics-dot-com> |
| 25 | + */ |
| 26 | + |
| 27 | +#ifndef TTM_FENCE_USER_H |
| 28 | +#define TTM_FENCE_USER_H |
| 29 | + |
| 30 | +#if !defined(__KERNEL__) && !defined(_KERNEL) |
| 31 | +#include <stdint.h> |
| 32 | +#endif |
| 33 | + |
| 34 | +#define TTM_FENCE_MAJOR 0 |
| 35 | +#define TTM_FENCE_MINOR 1 |
| 36 | +#define TTM_FENCE_PL 0 |
| 37 | +#define TTM_FENCE_DATE "080819" |
| 38 | + |
| 39 | +/** |
| 40 | + * struct ttm_fence_signaled_req |
| 41 | + * |
| 42 | + * @handle: Handle to the fence object. Input. |
| 43 | + * |
| 44 | + * @fence_type: Fence types we want to flush. Input. |
| 45 | + * |
| 46 | + * @flush: Boolean. Flush the indicated fence_types. Input. |
| 47 | + * |
| 48 | + * Argument to the TTM_FENCE_SIGNALED ioctl. |
| 49 | + */ |
| 50 | + |
| 51 | +struct ttm_fence_signaled_req { |
| 52 | + uint32_t handle; |
| 53 | + uint32_t fence_type; |
| 54 | + int32_t flush; |
| 55 | + uint32_t pad64; |
| 56 | +}; |
| 57 | + |
| 58 | +/** |
| 59 | + * struct ttm_fence_rep |
| 60 | + * |
| 61 | + * @signaled_types: Fence type that has signaled. |
| 62 | + * |
| 63 | + * @fence_error: Command execution error. |
| 64 | + * Hardware errors that are consequences of the execution |
| 65 | + * of the command stream preceding the fence are reported |
| 66 | + * here. |
| 67 | + * |
| 68 | + * Output argument to the TTM_FENCE_SIGNALED and |
| 69 | + * TTM_FENCE_FINISH ioctls. |
| 70 | + */ |
| 71 | + |
| 72 | +struct ttm_fence_rep { |
| 73 | + uint32_t signaled_types; |
| 74 | + uint32_t fence_error; |
| 75 | +}; |
| 76 | + |
| 77 | +union ttm_fence_signaled_arg { |
| 78 | + struct ttm_fence_signaled_req req; |
| 79 | + struct ttm_fence_rep rep; |
| 80 | +}; |
| 81 | + |
| 82 | +/* |
| 83 | + * Waiting mode flags for the TTM_FENCE_FINISH ioctl. |
| 84 | + * |
| 85 | + * TTM_FENCE_FINISH_MODE_LAZY: Allow for sleeps during polling |
| 86 | + * wait. |
| 87 | + * |
| 88 | + * TTM_FENCE_FINISH_MODE_NO_BLOCK: Don't block waiting for GPU, |
| 89 | + * but return -EBUSY if the buffer is busy. |
| 90 | + */ |
| 91 | + |
| 92 | +#define TTM_FENCE_FINISH_MODE_LAZY (1 << 0) |
| 93 | +#define TTM_FENCE_FINISH_MODE_NO_BLOCK (1 << 1) |
| 94 | + |
| 95 | +/** |
| 96 | + * struct ttm_fence_finish_req |
| 97 | + * |
| 98 | + * @handle: Handle to the fence object. Input. |
| 99 | + * |
| 100 | + * @fence_type: Fence types we want to finish. |
| 101 | + * |
| 102 | + * @mode: Wait mode. |
| 103 | + * |
| 104 | + * Input to the TTM_FENCE_FINISH ioctl. |
| 105 | + */ |
| 106 | + |
| 107 | +struct ttm_fence_finish_req { |
| 108 | + uint32_t handle; |
| 109 | + uint32_t fence_type; |
| 110 | + uint32_t mode; |
| 111 | + uint32_t pad64; |
| 112 | +}; |
| 113 | + |
| 114 | +union ttm_fence_finish_arg { |
| 115 | + struct ttm_fence_finish_req req; |
| 116 | + struct ttm_fence_rep rep; |
| 117 | +}; |
| 118 | + |
| 119 | +/** |
| 120 | + * struct ttm_fence_unref_arg |
| 121 | + * |
| 122 | + * @handle: Handle to the fence object. |
| 123 | + * |
| 124 | + * Argument to the TTM_FENCE_UNREF ioctl. |
| 125 | + */ |
| 126 | + |
| 127 | +struct ttm_fence_unref_arg { |
| 128 | + uint32_t handle; |
| 129 | + uint32_t pad64; |
| 130 | +}; |
| 131 | + |
| 132 | +/* |
| 133 | + * Ioctl offsets frome extenstion start. |
| 134 | + */ |
| 135 | + |
| 136 | +#define TTM_FENCE_SIGNALED 0x01 |
| 137 | +#define TTM_FENCE_FINISH 0x02 |
| 138 | +#define TTM_FENCE_UNREF 0x03 |
| 139 | + |
| 140 | +#endif |
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