1 /* 2 * Copyright 2012 Nouveau Community 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Martin Peres <martin.peres@labri.fr> 23 * Ben Skeggs 24 */ 25 #include "priv.h" 26 27 #include <subdev/timer.h> 28 29 static int 30 g94_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size) 31 { 32 struct nvkm_device *device = bus->subdev.device; 33 int i; 34 35 nvkm_mask(device, 0x001098, 0x00000008, 0x00000000); 36 nvkm_wr32(device, 0x001304, 0x00000000); 37 nvkm_wr32(device, 0x001318, 0x00000000); 38 for (i = 0; i < size; i++) 39 nvkm_wr32(device, 0x080000 + (i * 4), data[i]); 40 nvkm_mask(device, 0x001098, 0x00000018, 0x00000018); 41 nvkm_wr32(device, 0x00130c, 0x00000001); 42 43 if (nvkm_msec(device, 2000, 44 if (!(nvkm_rd32(device, 0x001308) & 0x00000100)) 45 break; 46 ) < 0) 47 return -ETIMEDOUT; 48 49 return 0; 50 } 51 52 static const struct nvkm_bus_func 53 g94_bus = { 54 .init = nv50_bus_init, 55 .intr = nv50_bus_intr, 56 .hwsq_exec = g94_bus_hwsq_exec, 57 .hwsq_size = 128, 58 }; 59 60 int 61 g94_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) 62 { 63 return nvkm_bus_new_(&g94_bus, device, index, pbus); 64 } 65