1 /* 2 * SPDX-FileCopyrightText: Copyright (c) 2018 NVIDIA CORPORATION & AFFILIATES. All rights reserved. 3 * SPDX-License-Identifier: MIT 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef _NV_RSYNC_H_ 25 #define _NV_RSYNC_H_ 26 27 #include "nv-linux.h" 28 29 typedef struct nv_rsync_info 30 { 31 struct semaphore lock; 32 uint32_t usage_count; 33 NvBool relaxed_ordering_mode; 34 int (*get_relaxed_ordering_mode)(int *mode, void *data); 35 void (*put_relaxed_ordering_mode)(int mode, void *data); 36 void (*wait_for_rsync)(struct pci_dev *gpu, void *data); 37 void *data; 38 } nv_rsync_info_t; 39 40 void nv_init_rsync_info(void); 41 void nv_destroy_rsync_info(void); 42 int nv_get_rsync_info(void); 43 void nv_put_rsync_info(void); 44 int nv_register_rsync_driver( 45 int (*get_relaxed_ordering_mode)(int *mode, void *data), 46 void (*put_relaxed_ordering_mode)(int mode, void *data), 47 void (*wait_for_rsync)(struct pci_dev *gpu, void *data), 48 void *data); 49 void nv_unregister_rsync_driver( 50 int (*get_relaxed_ordering_mode)(int *mode, void *data), 51 void (*put_relaxed_ordering_mode)(int mode, void *data), 52 void (*wait_for_rsync)(struct pci_dev *gpu, void *data), 53 void *data); 54 NvBool nv_get_rsync_relaxed_ordering_mode(nv_state_t *nv); 55 void nv_wait_for_rsync(nv_state_t *nv); 56 57 #endif 58