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 static void 28 gf100_bus_intr(struct nvkm_bus *bus) 29 { 30 struct nvkm_subdev *subdev = &bus->subdev; 31 struct nvkm_device *device = subdev->device; 32 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 33 34 if (stat & 0x0000000e) { 35 u32 addr = nvkm_rd32(device, 0x009084); 36 u32 data = nvkm_rd32(device, 0x009088); 37 38 nvkm_error_ratelimited(subdev, 39 "MMIO %s of %08x FAULT at %06x [ %s%s%s]\n", 40 (addr & 0x00000002) ? "write" : "read", data, 41 (addr & 0x00fffffc), 42 (stat & 0x00000002) ? "!ENGINE " : "", 43 (stat & 0x00000004) ? "PRIVRING " : "", 44 (stat & 0x00000008) ? "TIMEOUT " : ""); 45 46 nvkm_wr32(device, 0x009084, 0x00000000); 47 nvkm_wr32(device, 0x001100, (stat & 0x0000000e)); 48 stat &= ~0x0000000e; 49 } 50 51 if (stat) { 52 nvkm_error(subdev, "intr %08x\n", stat); 53 nvkm_mask(device, 0x001140, stat, 0x00000000); 54 } 55 } 56 57 static void 58 gf100_bus_init(struct nvkm_bus *bus) 59 { 60 struct nvkm_device *device = bus->subdev.device; 61 nvkm_wr32(device, 0x001100, 0xffffffff); 62 nvkm_wr32(device, 0x001140, 0x0000000e); 63 } 64 65 static const struct nvkm_bus_func 66 gf100_bus = { 67 .init = gf100_bus_init, 68 .intr = gf100_bus_intr, 69 }; 70 71 int 72 gf100_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 73 struct nvkm_bus **pbus) 74 { 75 return nvkm_bus_new_(&gf100_bus, device, type, inst, pbus); 76 } 77