| 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/therm.h> |
| 28 | #include <subdev/timer.h> |
| 29 | |
| 30 | static int |
| 31 | nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size) |
| 32 | { |
| 33 | struct nvkm_device *device = bus->subdev.device; |
| 34 | int i; |
| 35 | |
| 36 | nvkm_mask(device, 0x001098, 0x00000008, 0x00000000); |
| 37 | nvkm_wr32(device, 0x001304, 0x00000000); |
| 38 | for (i = 0; i < size; i++) |
| 39 | nvkm_wr32(device, 0x001400 + (i * 4), data[i]); |
| 40 | nvkm_mask(device, 0x001098, 0x00000018, 0x00000018); |
| 41 | nvkm_wr32(device, 0x00130c, 0x00000003); |
| 42 | |
| 43 | if (nvkm_msec(device, 2000, |
| 44 | if (!(nvkm_rd32(device, 0x001308) & 0x00000100)) |
| 45 | break; |
| 46 | ) < 0) |
| 47 | return -ETIMEDOUT; |
| 48 | |
| 49 | return 0; |
| 50 | } |
| 51 | |
| 52 | void |
| 53 | nv50_bus_intr(struct nvkm_bus *bus) |
| 54 | { |
| 55 | struct nvkm_subdev *subdev = &bus->subdev; |
| 56 | struct nvkm_device *device = subdev->device; |
| 57 | u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140); |
| 58 | |
| 59 | if (stat & 0x00000008) { |
| 60 | u32 addr = nvkm_rd32(device, 0x009084); |
| 61 | u32 data = nvkm_rd32(device, 0x009088); |
| 62 | |
| 63 | nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n", |
| 64 | (addr & 0x00000002) ? "write" : "read", data, |
| 65 | (addr & 0x00fffffc)); |
| 66 | |
| 67 | stat &= ~0x00000008; |
| 68 | nvkm_wr32(device, 0x001100, 0x00000008); |
| 69 | } |
| 70 | |
| 71 | if (stat & 0x00010000) { |
| 72 | struct nvkm_therm *therm = device->therm; |
| 73 | if (therm) |
| 74 | nvkm_subdev_intr(&therm->subdev); |
| 75 | stat &= ~0x00010000; |
| 76 | nvkm_wr32(device, 0x001100, 0x00010000); |
| 77 | } |
| 78 | |
| 79 | if (stat) { |
| 80 | nvkm_error(subdev, "intr %08x\n", stat); |
| 81 | nvkm_mask(device, 0x001140, stat, 0); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | void |
| 86 | nv50_bus_init(struct nvkm_bus *bus) |
| 87 | { |
| 88 | struct nvkm_device *device = bus->subdev.device; |
| 89 | nvkm_wr32(device, 0x001100, 0xffffffff); |
| 90 | nvkm_wr32(device, 0x001140, 0x00010008); |
| 91 | } |
| 92 | |
| 93 | static const struct nvkm_bus_func |
| 94 | nv50_bus = { |
| 95 | .init = nv50_bus_init, |
| 96 | .intr = nv50_bus_intr, |
| 97 | .hwsq_exec = nv50_bus_hwsq_exec, |
| 98 | .hwsq_size = 64, |
| 99 | }; |
| 100 | |
| 101 | int |
| 102 | nv50_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus) |
| 103 | { |
| 104 | return nvkm_bus_new_(&nv50_bus, device, index, pbus); |
| 105 | } |