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/gpio.h> 28 #include <subdev/therm.h> 29 30 static void 31 nv31_bus_intr(struct nvkm_bus *bus) 32 { 33 struct nvkm_subdev *subdev = &bus->subdev; 34 struct nvkm_device *device = subdev->device; 35 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 36 u32 gpio = nvkm_rd32(device, 0x001104) & nvkm_rd32(device, 0x001144); 37 38 if (gpio) { 39 struct nvkm_gpio *gpio = device->gpio; 40 if (gpio) 41 nvkm_subdev_intr(&gpio->subdev); 42 } 43 44 if (stat & 0x00000008) { /* NV41- */ 45 u32 addr = nvkm_rd32(device, 0x009084); 46 u32 data = nvkm_rd32(device, 0x009088); 47 48 nvkm_error_ratelimited(subdev, "MMIO %s of %08x FAULT at %06x\n", 49 (addr & 0x00000002) ? "write" : "read", data, 50 (addr & 0x00fffffc)); 51 52 stat &= ~0x00000008; 53 nvkm_wr32(device, 0x001100, 0x00000008); 54 } 55 56 if (stat & 0x00070000) { 57 struct nvkm_therm *therm = device->therm; 58 if (therm) 59 nvkm_subdev_intr(&therm->subdev); 60 stat &= ~0x00070000; 61 nvkm_wr32(device, 0x001100, 0x00070000); 62 } 63 64 if (stat) { 65 nvkm_error(subdev, "intr %08x\n", stat); 66 nvkm_mask(device, 0x001140, stat, 0x00000000); 67 } 68 } 69 70 static void 71 nv31_bus_init(struct nvkm_bus *bus) 72 { 73 struct nvkm_device *device = bus->subdev.device; 74 nvkm_wr32(device, 0x001100, 0xffffffff); 75 nvkm_wr32(device, 0x001140, 0x00070008); 76 } 77 78 static const struct nvkm_bus_func 79 nv31_bus = { 80 .init = nv31_bus_init, 81 .intr = nv31_bus_intr, 82 }; 83 84 int 85 nv31_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 86 struct nvkm_bus **pbus) 87 { 88 return nvkm_bus_new_(&nv31_bus, device, type, inst, pbus); 89 } 90