Martin Peres | a10220b | 2012-11-04 01:01:53 +0100 | [diff] [blame^] | 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 | |
| 26 | #include <subdev/bus.h> |
| 27 | |
| 28 | struct nv50_bus_priv { |
| 29 | struct nouveau_bus base; |
| 30 | }; |
| 31 | |
| 32 | static void |
| 33 | nv50_bus_intr(struct nouveau_subdev *subdev) |
| 34 | { |
| 35 | struct nouveau_bus *pbus = nouveau_bus(subdev); |
| 36 | u32 stat = nv_rd32(pbus, 0x001100) & nv_rd32(pbus, 0x001140); |
| 37 | |
| 38 | if (stat & 0x00000008) { |
| 39 | nv_error(pbus, "MMIO FAULT\n"); |
| 40 | stat &= ~0x00000008; |
| 41 | nv_wr32(pbus, 0x001100, 0x00000008); |
| 42 | } |
| 43 | |
| 44 | if (stat & 0x00010000) { |
| 45 | subdev = nouveau_subdev(pbus, NVDEV_SUBDEV_THERM); |
| 46 | if (subdev && subdev->intr) |
| 47 | subdev->intr(subdev); |
| 48 | stat &= ~0x00010000; |
| 49 | nv_wr32(pbus, 0x001100, 0x00010000); |
| 50 | } |
| 51 | |
| 52 | if (stat) { |
| 53 | nv_error(pbus, "unknown intr 0x%08x\n", stat); |
| 54 | nv_mask(pbus, 0x001140, stat, 0); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | static int |
| 59 | nv50_bus_init(struct nouveau_object *object) |
| 60 | { |
| 61 | struct nv50_bus_priv *priv = (void *)object; |
| 62 | int ret; |
| 63 | |
| 64 | ret = nouveau_bus_init(&priv->base); |
| 65 | if (ret) |
| 66 | return ret; |
| 67 | |
| 68 | nv_wr32(priv, 0x001100, 0xffffffff); |
| 69 | nv_wr32(priv, 0x001140, 0x00010008); |
| 70 | return 0; |
| 71 | } |
| 72 | |
| 73 | static int |
| 74 | nv50_bus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| 75 | struct nouveau_oclass *oclass, void *data, u32 size, |
| 76 | struct nouveau_object **pobject) |
| 77 | { |
| 78 | struct nv50_bus_priv *priv; |
| 79 | int ret; |
| 80 | |
| 81 | ret = nouveau_bus_create(parent, engine, oclass, &priv); |
| 82 | *pobject = nv_object(priv); |
| 83 | if (ret) |
| 84 | return ret; |
| 85 | |
| 86 | nv_subdev(priv)->intr = nv50_bus_intr; |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | struct nouveau_oclass |
| 91 | nv50_bus_oclass = { |
| 92 | .handle = NV_SUBDEV(BUS, 0x50), |
| 93 | .ofuncs = &(struct nouveau_ofuncs) { |
| 94 | .ctor = nv50_bus_ctor, |
| 95 | .dtor = _nouveau_bus_dtor, |
| 96 | .init = nv50_bus_init, |
| 97 | .fini = _nouveau_bus_fini, |
| 98 | }, |
| 99 | }; |