1 /*
2 * Copyright 2012 Red Hat Inc.
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: Ben Skeggs
23 */
24 #include "priv.h"
25
26 void
27 nv44_mc_init(struct nvkm_mc *mc)
28 {
29 struct nvkm_device *device = mc->subdev.device;
30 u32 tmp = nvkm_rd32(device, 0x10020c);
31
32 nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
33
34 nvkm_wr32(device, 0x001700, tmp);
35 nvkm_wr32(device, 0x001704, 0);
36 nvkm_wr32(device, 0x001708, 0);
37 nvkm_wr32(device, 0x00170c, tmp);
38 }
39
40 static const struct nvkm_mc_func
41 nv44_mc = {
42 .init = nv44_mc_init,
43 .intr = nv17_mc_intr,
44 .intr_unarm = nv04_mc_intr_unarm,
45 .intr_rearm = nv04_mc_intr_rearm,
46 .intr_stat = nv04_mc_intr_stat,
47 .reset = nv17_mc_reset,
48 };
49
50 int
51 nv44_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
52 {
53 return nvkm_mc_new_(&nv44_mc, device, index, pmc);
54 }