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/gsp.h> 28 29 static void 30 gf100_bus_intr(struct nvkm_bus *bus) 31 { 32 struct nvkm_subdev *subdev = &bus->subdev; 33 struct nvkm_device *device = subdev->device; 34 u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); 35 36 if (stat & 0x0000000e) { 37 u32 addr = nvkm_rd32(device, 0x009084); 38 u32 data = nvkm_rd32(device, 0x009088); 39 40 nvkm_error_ratelimited(subdev, 41 "MMIO %s of %08x FAULT at %06x [ %s%s%s]\n", 42 (addr & 0x00000002) ? "write" : "read", data, 43 (addr & 0x00fffffc), 44 (stat & 0x00000002) ? "!ENGINE " : "", 45 (stat & 0x00000004) ? "PRIVRING " : "", 46 (stat & 0x00000008) ? "TIMEOUT " : ""); 47 48 nvkm_wr32(device, 0x009084, 0x00000000); 49 nvkm_wr32(device, 0x001100, (stat & 0x0000000e)); 50 stat &= ~0x0000000e; 51 } 52 53 if (stat) { 54 nvkm_error(subdev, "intr %08x\n", stat); 55 nvkm_mask(device, 0x001140, stat, 0x00000000); 56 } 57 } 58 59 static void 60 gf100_bus_init(struct nvkm_bus *bus) 61 { 62 struct nvkm_device *device = bus->subdev.device; 63 nvkm_wr32(device, 0x001100, 0xffffffff); 64 nvkm_wr32(device, 0x001140, 0x0000000e); 65 } 66 67 static const struct nvkm_bus_func 68 gf100_bus = { 69 .init = gf100_bus_init, 70 .intr = gf100_bus_intr, 71 }; 72 73 int 74 gf100_bus_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 75 struct nvkm_bus **pbus) 76 { 77 if (nvkm_gsp_rm(device->gsp)) 78 return -ENODEV; 79 80 return nvkm_bus_new_(&gf100_bus, device, type, inst, pbus); 81 } 82