| /************************************************************************** |
| * |
| * 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> |
| */ |
| |
| #ifndef TTM_FENCE_USER_H |
| #define TTM_FENCE_USER_H |
| |
| #if !defined(__KERNEL__) && !defined(_KERNEL) |
| #include <stdint.h> |
| #endif |
| |
| #define TTM_FENCE_MAJOR 0 |
| #define TTM_FENCE_MINOR 1 |
| #define TTM_FENCE_PL 0 |
| #define TTM_FENCE_DATE "080819" |
| |
| /** |
| * 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. |
| */ |
| |
| struct ttm_fence_signaled_req { |
| uint32_t handle; |
| uint32_t fence_type; |
| int32_t flush; |
| uint32_t pad64; |
| }; |
| |
| /** |
| * 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. |
| */ |
| |
| struct ttm_fence_rep { |
| uint32_t signaled_types; |
| uint32_t fence_error; |
| }; |
| |
| union ttm_fence_signaled_arg { |
| struct ttm_fence_signaled_req req; |
| struct ttm_fence_rep rep; |
| }; |
| |
| /* |
| * 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. |
| */ |
| |
| #define TTM_FENCE_FINISH_MODE_LAZY (1 << 0) |
| #define TTM_FENCE_FINISH_MODE_NO_BLOCK (1 << 1) |
| |
| /** |
| * 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. |
| */ |
| |
| struct ttm_fence_finish_req { |
| uint32_t handle; |
| uint32_t fence_type; |
| uint32_t mode; |
| uint32_t pad64; |
| }; |
| |
| union ttm_fence_finish_arg { |
| struct ttm_fence_finish_req req; |
| struct ttm_fence_rep rep; |
| }; |
| |
| /** |
| * struct ttm_fence_unref_arg |
| * |
| * @handle: Handle to the fence object. |
| * |
| * Argument to the TTM_FENCE_UNREF ioctl. |
| */ |
| |
| struct ttm_fence_unref_arg { |
| uint32_t handle; |
| uint32_t pad64; |
| }; |
| |
| /* |
| * Ioctl offsets frome extenstion start. |
| */ |
| |
| #define TTM_FENCE_SIGNALED 0x01 |
| #define TTM_FENCE_FINISH 0x02 |
| #define TTM_FENCE_UNREF 0x03 |
| |
| #endif |