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 #include <subdev/privring.h> 23 24 #include "priv.h" 25 26 static int 27 gp10b_privring_init(struct nvkm_subdev *privring) 28 { 29 struct nvkm_device *device = privring->device; 30 31 nvkm_wr32(device, 0x1200a8, 0x0); 32 33 /* init ring */ 34 nvkm_wr32(device, 0x12004c, 0x4); 35 nvkm_wr32(device, 0x122204, 0x2); 36 nvkm_rd32(device, 0x122204); 37 38 /* timeout configuration */ 39 nvkm_wr32(device, 0x009080, 0x800186a0); 40 41 return 0; 42 } 43 44 static const struct nvkm_subdev_func 45 gp10b_privring = { 46 .init = gp10b_privring_init, 47 .intr = gk104_privring_intr, 48 }; 49 50 int 51 gp10b_privring_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 52 struct nvkm_subdev **pprivring) 53 { 54 return nvkm_subdev_new_(&gp10b_privring, device, type, inst, pprivring); 55 } 56