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 "nv04.h" 26 27 static void 28 nv31_bus_intr(struct nvkm_subdev *subdev) 29 { 30 struct nvkm_bus *bus = nvkm_bus(subdev); 31 struct nvkm_device *device = bus->subdev.device; 32 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 33 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144); 34 35 if (gpio) { 36 subdev = nvkm_subdev(bus, NVDEV_SUBDEV_GPIO); 37 if (subdev && subdev->intr) 38 subdev->intr(subdev); 39 } 40 41 if (stat & 0x00000008) { /* NV41- */ 42 u32 addr = nvkm_rd32(device, 0x009084); 43 u32 data = nvkm_rd32(device, 0x009088); 44 45 nv_error(bus, "MMIO %s of 0x%08x FAULT at 0x%06x\n", 46 (addr & 0x00000002) ? "write" : "read", data, 47 (addr & 0x00fffffc)); 48 49 stat &= ~0x00000008; 50 nvkm_wr32(device, 0x001100, 0x00000008); 51 } 52 53 if (stat & 0x00070000) { 54 subdev = nvkm_subdev(bus, NVDEV_SUBDEV_THERM); 55 if (subdev && subdev->intr) 56 subdev->intr(subdev); 57 stat &= ~0x00070000; 58 nvkm_wr32(device, 0x001100, 0x00070000); 59 } 60 61 if (stat) { 62 nv_error(bus, "unknown intr 0x%08x\n", stat); 63 nvkm_mask(device, 0x001140, stat, 0x00000000); 64 } 65 } 66 67 static int 68 nv31_bus_init(struct nvkm_object *object) 69 { 70 struct nvkm_bus *bus = (void *)object; 71 struct nvkm_device *device = bus->subdev.device; 72 int ret; 73 74 ret = nvkm_bus_init(bus); 75 if (ret) 76 return ret; 77 78 nvkm_wr32(device, 0x001100, 0xffffffff); 79 nvkm_wr32(device, 0x001140, 0x00070008); 80 return 0; 81 } 82 83 struct nvkm_oclass * 84 nv31_bus_oclass = &(struct nv04_bus_impl) { 85 .base.handle = NV_SUBDEV(BUS, 0x31), 86 .base.ofuncs = &(struct nvkm_ofuncs) { 87 .ctor = nv04_bus_ctor, 88 .dtor = _nvkm_bus_dtor, 89 .init = nv31_bus_init, 90 .fini = _nvkm_bus_fini, 91 }, 92 .intr = nv31_bus_intr, 93 }.base; 94