1 /* 2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 * DEALINGS IN THE SOFTWARE. 21 */ 22 23 #ifndef __NVKM_CORE_MSGQUEUE_H 24 #define __NVKM_CORE_MSGQUEUE_H 25 #include <subdev/secboot.h> 26 struct nvkm_msgqueue; 27 28 /* Hopefully we will never have firmware arguments larger than that... */ 29 #define NVKM_MSGQUEUE_CMDLINE_SIZE 0x100 30 31 int nvkm_msgqueue_new(u32, struct nvkm_falcon *, const struct nvkm_secboot *, 32 struct nvkm_msgqueue **); 33 void nvkm_msgqueue_del(struct nvkm_msgqueue **); 34 void nvkm_msgqueue_recv(struct nvkm_msgqueue *); 35 int nvkm_msgqueue_reinit(struct nvkm_msgqueue *); 36 37 /* useful if we run a NVIDIA-signed firmware */ 38 void nvkm_msgqueue_write_cmdline(struct nvkm_msgqueue *, void *); 39 40 /* interface to ACR unit running on falcon (NVIDIA signed firmware) */ 41 int nvkm_msgqueue_acr_boot_falcons(struct nvkm_msgqueue *, unsigned long); 42 43 #endif