2 * Copyright 2012 Nouveau Community
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Martin Peres <martin.peres@labri.fr>
28 nv04_bus_intr(struct nvkm_subdev *subdev)
30 struct nvkm_bus *pbus = nvkm_bus(subdev);
31 u32 stat = nv_rd32(pbus, 0x001100) & nv_rd32(pbus, 0x001140);
33 if (stat & 0x00000001) {
34 nv_error(pbus, "BUS ERROR\n");
36 nv_wr32(pbus, 0x001100, 0x00000001);
39 if (stat & 0x00000110) {
40 subdev = nvkm_subdev(subdev, NVDEV_SUBDEV_GPIO);
41 if (subdev && subdev->intr)
44 nv_wr32(pbus, 0x001100, 0x00000110);
48 nv_error(pbus, "unknown intr 0x%08x\n", stat);
49 nv_mask(pbus, 0x001140, stat, 0x00000000);
54 nv04_bus_init(struct nvkm_object *object)
56 struct nv04_bus_priv *priv = (void *)object;
58 nv_wr32(priv, 0x001100, 0xffffffff);
59 nv_wr32(priv, 0x001140, 0x00000111);
61 return nvkm_bus_init(&priv->base);
65 nv04_bus_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
66 struct nvkm_oclass *oclass, void *data, u32 size,
67 struct nvkm_object **pobject)
69 struct nv04_bus_impl *impl = (void *)oclass;
70 struct nv04_bus_priv *priv;
73 ret = nvkm_bus_create(parent, engine, oclass, &priv);
74 *pobject = nv_object(priv);
78 nv_subdev(priv)->intr = impl->intr;
79 priv->base.hwsq_exec = impl->hwsq_exec;
80 priv->base.hwsq_size = impl->hwsq_size;
85 nv04_bus_oclass = &(struct nv04_bus_impl) {
86 .base.handle = NV_SUBDEV(BUS, 0x04),
87 .base.ofuncs = &(struct nvkm_ofuncs) {
88 .ctor = nv04_bus_ctor,
89 .dtor = _nvkm_bus_dtor,
90 .init = nv04_bus_init,
91 .fini = _nvkm_bus_fini,
93 .intr = nv04_bus_intr,