| 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(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) ? "IBUS " : "", |
| 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, int index, struct nvkm_bus **pbus) |
| 73 | { |
| 74 | return nvkm_bus_new_(&gf100_bus, device, index, pbus); |
| 75 | } |